Just so you know, this video is still helping people today. Best objective explanation I've heard. Thanks Gene!
@swizzy8735
7 ай бұрын
Agreed
@LoganRST
6 ай бұрын
Helped me in 2024!
@ryanwaege7251
2 ай бұрын
@@LoganRST me too 2024
@trog69
6 жыл бұрын
As a poor retiree I have settled for used gear. I lucked into winning an auction for the Adcom gfa-555 power amp and it made me realize that the Carver M-500 I'd been using for a couple of months desperately needed repair as it lacked both high and low freq. sound that the Adcom outputted quite well. Anyway, after getting my grubby mitts on a wonderful-sounding pair of ADS L810's, I thought about how their 94db efficiency would hold up with less power, so I hooked them up to the Emotiva a-100 Flex amp I'd been using for headphones, and the sound was every bit as good as the Adcom. All of this is in near-field so none of the amps were ever pushed very hard at all, but the 50wpc Emotiva has proven to be everything I could want for this desktop. Love the vids, Gene!
@dedskin1
4 жыл бұрын
I am a producer , i work with sound forever , and let me tell you , why would you need more then 20W , i have 2x200W speakers , 8inch 2 way system , quad amped , every driver its own amp , 75W tweeters and 125W bass . That is a good system , clear as day , no distortion , i use about 20W of it usually even less . So whats the issue you ask ? The issue is music is not a perfect thing , perfectly clean speaker and amp , thats clinical , its not musical .. So that is what i use because im a producer , i have to have clean sound . But when im listening , Class A nothing else . No discussion . Its not a bout measurements , its how it sounds . I want that soft Clip , i want that less hten perfect dynamics . The Amp Sings and adds richness to the sound . So much that producers copy sounds of some machines , some Compressors and things . Hence let me tell you , if you are an experienced audio person, you dont need more then 20W , so Class A and that is it . Of cours you can have more then one amp for times when 20W is not enough .
@martyjewell5683
4 жыл бұрын
Nicely explained and very lucid. I read somewhere that Hitachi had the licenses for class G, class H and magnetic field amps and licensed them to Soundcraftsmen and Carver respectively. I have a Hitachi class G receiver (SR-804) purchased in 1979 and still use it today. I keep it serviced and in good order. I find that it can be on for hours, sometimes eight hours and only gets barely warm to the touch. Sound is clean, clear almost crisp. I found the cost (in 1979) of this receiver very compatible with other similar powered brands. It cost me $340 in 1979.
@miltonrodriguez8923
4 жыл бұрын
I had a pioneer sc 35. Beast of a amp. Very efficient and it drive all my 7 channels simultaneously with no problem. Amp didn't get as hot as other typical av receivers. Audio was in my experience superb. I use 8 to 4 ohms speakers with ease. Unfortunately its life ended because I had a bunch of toddlers who thought my amp was yogurt approve.
@nancy4don
11 ай бұрын
I currently use a Crown XLS1002 Class D amp - a professional amp. I heard many good things about it through the grapevine, especially about how "neutral" it sounds. I'm an old audio tweak who started in the 1970s. I've worked at Radio Shack and also Best Buy among my many retail audio experiences. The old "guiding principle" was straight-wire-with-gain. The best stuff was equipment that got out of the way, letting you get into the presence of the original recording. For years I used an SAE power amp that was reputed to be more neutral than any made at the time. (Mine was made in 1975.) I found that (after break-in!) the Crown was even more open and neutral. I use a Carver C-9 Sonic Hologram Generator with it, and I am getting imaging and presence that eliminates the need for surround or other multi-channel. Gene, if you haven't taken a couple of hours to listen to these Crown XLS DriveCore2 amps, you're missing out. Oh, and it's ice cold, even after 8+ hours of use - the fan has never turned on.
@__jabird__2635
6 жыл бұрын
Excellent explanation of the difference in amplifiers. I’ll keep listening 👂
@davidmbugua4765
6 жыл бұрын
Hi Gene. Awesome video as always. Currently using Emotiva Gen 3, 3 channel. So far am impressed with the output. Usually listen to lots of stereo music for hours and when I touch it it's still cold to the touch. Makes me wonder sometimes if it's really working but am sure it is. Cheers. David.
@aegisofhonor
6 жыл бұрын
one of the best multi-channel class D amplifiers ever made (at a reasonable price at least) was the Sherwood A-965, it was a 7 channel beast that pushed 7 channels at 100 watts each, and tests showed it was clean up to 120 watts, and driving two channels could push as high as 160 watts at 8-ohms. I wish I had one, they have become a rare find in recent years.
@buzzcrushtrendkill
5 жыл бұрын
"..you're basically using a space heater." That is hilarious. Great video. I love your channel.
@pimpmyskin
3 жыл бұрын
I know a guy here in Sweden that help heat up the warm water in the house with his home built Nelson Pass Class A amp and the water also cools the amp so Win Win for everyone.
@markrigg6623
3 жыл бұрын
I literally used my A class Yamaha as a heater in my small bedroom.
@stevengagnon4777
Жыл бұрын
@@pimpmyskin excellent solution good for all seasons because a space heater is generally not good in the summer unless you are in a cold basement.
@erictarbox
6 жыл бұрын
I have class A across the front soundstage with class AB for all the other 8.2 channels. 200 Watts per channel minimum all around the theater room, Adcom, Kenwood, Yamaha, B&K and Carver to be specific. Okay so I have a lot of power available for sound quality and effects. It is worth it for me.
@michaelslocumbsr.2286
5 жыл бұрын
Gene, What are your thoughts regarding the Crown XLS Amplifiers for Home Theater....
@birgerolofsson2347
4 жыл бұрын
I have two bridged Primare A34.2 to my 2 main-speakers and a Primare A30.7 to my center and surround channels and they are Class D amplifiers.
@ChristianPinnock-r4s
Ай бұрын
@birgerolofsson2347 I have a class d subwoofer made by sony and it sounds similar to a pa active subwoofer
@captaincanuck7110
4 жыл бұрын
My Krell KSA 250 is a egg fryer! Its also a b&lll buster to lift!
@xlostlovex
5 жыл бұрын
After 6 minutes of viewing I realize my top right screen is moving.. (Full screen mode) Good explaination btw!
@YoYo-uh3xj
3 жыл бұрын
@@noemycabrera8686 ?
@pimpmyskin
3 жыл бұрын
I have always used A/B because I thought I paid more for less with A and that A was just old stuff for stubborn old guys. But now 20 years later I'm looking to get my next 2-chanel stereo after not having one the last 4 years I found Class A and have totally fallen in love. Nothing A/B sounds quite like Class A. I have listened to sooo many High End A/B amps and nothing is as smooth and powerfull at the same time. I also think that it's impossible to measure "Good Sound". You can have two cables made out of the same conducting material but put together different that will measure the same but sounds totally different. In my opinion the only quality test you can do on hifi is an old fashion listening session. Hifi is in the eye/ear of the beholder. It's like art, you can't measure art and say that's good or bad you can only look and make your mind up. Something you love I might not so who's right. Well that's all from me and have a blessed day
4 жыл бұрын
Could you guys do a head phone video? Like pre amps and how to match them?
@vcp93
5 жыл бұрын
Great video. I've learned a ton from this. Thanks!
@blasterman789
4 жыл бұрын
I'm still running a Panasonic SA XR55 from 2005. I've compared it in sound tests alongside many newer non D amps in the sub $1000 range and sonically the XR55 keeps up fine in its power class, if not beating a few. I dont need convincing Class D is the way to go given how old the panny is.
@shaeradraghiem3044
5 жыл бұрын
Thanks for such helpfull tutorial ... Specially at 2 AM (by looking at your desktop clock :D)
@ianforfun1
4 жыл бұрын
Extremely well explained. I have a class A Tube EL34 2 x 12 Watts single-ended running in ultra-linear with a Tube preamp, a Technics 2 x 55 watts class A and a Sony 2 x 50 watts class AB and use a home built 1/4 wavelength 14feet transmission pipe floor standing enclosures running duel concentric 61/2 inch drivers with 25% of the spider removed for greater compliance and efficiency and at 8ohms with balanced passive crossover and Zobel network with 25-30Hz (dependant on room placement) to 20Khz response. By a long way, the Tube amp has far more control and with an HD source is breathtaking! So much more harmonic detail and presence and the image is stunning with depth and can 'feel' the music. I think the trade-off of less efficiency is worth the results. All achieved with a low budget in mind and 100s of hours of effort.
@dk4855
Жыл бұрын
Yeah I have a old sony TA-F808ES integrated amp that is very warm. It has very good sound.
@bigdiffas
4 жыл бұрын
Did buy sony str-va555es for running my hometheater. Quite sure it is A/B by the mass of it (24kg says on the box). Just loving how it sounds on stereo mode. Earlier I had some cheaper start of the line sony hometheater amp and the difference in the sound is like night and day.
@stevefoster6047
2 жыл бұрын
My take away from this very nice video is that if my priority is the best possible sound, for instance to drive a 2 channel audiophile system, Class A amplification is the best possible choice with appropriate caveats regarding budget, listening space size, desired listening levels and speaker sensitivity. If those considerations demand more than about 20 watts, then Class AB may be a better choice. If those considerations demand more than about 200 watts, then Class D should also be considered and may prove the best compromise. If my priority is minimizing my electrical consumption (or $ outlay) and sound quality is secondary, such as multi-channel AV system, or a music system for casual uncritical listening, then well chosen Class D likely offers the best compromise. One concern I do have unique to Class D is that the output filter is a reactive LC circuit, and most amp testing simulates speakers with a simple resistive load. Speakers are not resistors, but rather are reactive LCR loads in their own right, which therefore will interact with the Class D output filter circuit quite differently than a simple resistive load. Hopefully that interaction doesn't result in audible distortion, but testing the amp with a resistive load will not reveal whether or not that is the case. The only test that can is to use the actual speakers chosen for the system as the test load, since each speaker design offers unique LCR circuit characteristics. This issue is well known, much studied, and I hope, largely solved.
@paulsalongo4927
Ай бұрын
100% agreement.
@Woofy-tm8si
6 жыл бұрын
I would love to see you test the new Emotiva PA-1 Mono Amps with the ICEmodules. At $300 apiece, they're a multichannel afficionado's dream come true and a budget audiophiles dream come true. Can you imagine? A pair of 300w monoblocks for $600! If they sound as good as promised, they're gonna sell tons of them. Well, and I was thinking about getting three for both the fronts and center channel, but I was hoping to see a reliable review before I jump in with both feet. Cheers!
@TexasCorgiGun
6 жыл бұрын
Same here also I'm between emotiva and red Dragon but red dragon is double the price
@bs11100010
6 жыл бұрын
I love geeking out. Thanks
@MaZEEZaM
5 жыл бұрын
Is it just me or do you also hear Oracle every time he says Article?
@michaelbeckerman7532
Жыл бұрын
It's very interesting now today that most amplifier manufacturers (at least the ones sold at retail) no longer disclose or even really want you to know what class they are. Why do you think that is? The trend now today is for manufacturers to either provide little to no detailed information on their spec sheets or simply no longer even publish a spec sheet of any kind at all for their products. The phrase you commonly hear now from them is, "We like to let our third-party partner sites out there on the web determine all of those details and publish that information instead." WHAT? Are you even kidding? Since when would ANY company let someone ELSE out there just basically guess at what their specs and internal components are? Why would anyone let something as important as that type of information be handed out to the public (the people actually BUYING your product) by random people out on the Internet? Is it because they want to reserve the right to completely change their specs and internal components square in the middle of a production run if needed and not have to be tied down to one particular architecture that was already laid out on a company provided spec sheet? That's the ONLY reason I can possibly think here for doing this. Can someone please explain this thinking to me and make it make sense? Because right now, it really doesn't.
@zoroluva
2 жыл бұрын
Love this video. Explained all the questions I had. Now I understand why your typical McIntosh is over 60lbs.
@roocrew86
4 жыл бұрын
Awesome video I realise how little I knew... I thought i liked audio 🤣
@நக்மாசெல்
4 жыл бұрын
Beautiful explanation for a beginner. People always crazy on 1000w 20000w kind of figures. This tutorial cracks down the myth
@northern_moss
3 жыл бұрын
Thanks Gene. This is one of the best videos I've seen from you guys, and watched quite a few. Really helping rooks plan well, save, and avoid pitfalls. Maybe even inspiring taking courses at uni. Thanks for doing this.
@isaacsykes3
6 жыл бұрын
Thanks for the video, would please provide a recommendation of two amplifiers for each category that you mentioned. I think that would be extremely helpful.
@daveb5041
4 жыл бұрын
Crosley, Sherwood, realistic, RCA, oh wait those are all terrible brands unless you like distortion. Why don't you just look at the specs or the best way listen to them, your ears don't hear data printouts and specs.
@martybrozek7973
4 жыл бұрын
@@daveb5041 realistic haven't heard that brand in a long time brings back memories of the old RadioShack stores. 🙄
@pritim2009
5 жыл бұрын
The sound quality of this lecture is hot lead to my ears
@daveb5041
4 жыл бұрын
Yeah it sounds distorted how ironic.
@texasbuzzard4970
Жыл бұрын
Fantastic content gene. Exactly the video I was looking for
@bphilbac
6 жыл бұрын
As always, great info Gene, thanks for sharing. I never considered class D amps before now but maybe I"ll check them out due to your findings. Keep the great videos coming!
@loudspeaker-solutions
6 жыл бұрын
very good video killing the myth of audiophiles and bringing rationality into sound reproduction. that's the way i believe audio should be treated in marketing. thanks.
@XX-121
Жыл бұрын
enjoy your class d. won't ever catch me running one. fool me once...
@Joemama-km9np
2 жыл бұрын
Thanks, you nerd'it down for us novices!
@leoniecardinal3798
5 жыл бұрын
Nice feature on types of amps! Very understandable as I have class a & ab & d class car amps and also own pioneer"s 7 channel surround. Thanks!
@enriquejackson2843
2 жыл бұрын
I drive my KLIPSCH Chorus ii with a Carver M 1.5 t and it is freaking amazing of what a Class D amp can do
@nilabjasarkar
5 жыл бұрын
I use a Sony proprietary S Master Digital amplifier, so am i using the best in class or is it just another technical jargon, as they claim with the S-Master digital amplifier, a simplified, full digital signal path, the S-Master amplifier reproduces digital audio signals without the multiple analogue stages required by conventional amplifiers. The result is not just more power, but significantly less distortion from heat build-up.
@mark1953
Жыл бұрын
Hi, would love to know what your thoughts are on a Yamaha M80 amp ?.
@johnspencer4106
2 жыл бұрын
I run the Rotel RMB1555 , what reviewing have you done on my amp?
@bigfoot4000
5 жыл бұрын
For the past two decades, I have been running Carver class G three rail (PT-2400) and class H four rail (PT-1250) amplifiers on a touring rig with next to no maintainence. More recently, I have been including class D Lab.gruppen amps into projects with good results. The newer class D amps tend to be third smaller than a comparably powered class G/H but I have found the difference in weight and power consumption between a class D and class H to be fairly insignificant. They are both 90% efficient with around 120 watts rms output/pound of mass. For sub woofer use, I still have not come across any amp with the low frequency headroom of a PT-2400 as evident by my ability to feed a 60Hz sine wave into it while starting and running a 2hp air compressor connected to the outputs. I have yet to find any 120VAC class D amplifier that can pull that off. This bullshit “peak power” rating often quoted by the class D crowd would be best left for the consumer crap that they sell at Walmart.
@earlyetman5588
9 ай бұрын
I had a Carver TFM-75 power amp, it was a consumer version of the PT2400. Its output was (min.) 750wpc 8 ohms, 1000wpc 4 ohms, it was recommended that each power cord be plugged into its own 20amp circuit for max power. Awesome amplifier it was!
@paulpaulzadeh6172
3 жыл бұрын
we need 10000000000000000000000000000000000000000000000000000000000000000 W , LOL you are going in wrong direction when it comes to High end audiophile , class D amplifier are good for public environment !
@jimturpin
3 жыл бұрын
Re: what type of amplifiers do we use? Just wondering if anybody is using feed-forward, pre-distortion types (from the radio frequency world), that use DSP's to compare inputs and outputs, and add an inverted correction signal to the input to cancel any distortion on the output. That way they can be efficient and ultra-linear.
@MrsZambezi
4 жыл бұрын
Once you have enough bias to eliminate crossover distortion that's enough. There are no gains in moving to class A biasing.
@uscfroadie
6 жыл бұрын
Gene, another great video! One question, please. Why have manufacturers not launched a multi-channel (5/7/9 or 11) Class D amp for hooking up to AVRs to get better power to their home theater speakers? Spending $1500 on a receiver to only get ~40-50 watts when all channels are driven is pretty pathetic.
@Audioholics
6 жыл бұрын
Yea the industry is slow to adopt Class D and to do it right, it's still costly. Thankfully most midpriced AVR's have preouts to add power down the road if you need it.
@waltermolina7115
6 жыл бұрын
Hi Gene. great video!! I have a Denon X3400 with Elac Unifi lineup as home theater. I was planning to get the Outlaw 5000. But after watching your video, it got me thinking about a 5 channel class D amplifier. Any suggestions??
@masterchief8790
5 жыл бұрын
Any of the Pioneers, regardless of generation, that are running the ICE Power amps will do. I saw a test done by an audio store owner where the Pioneer SC25, rated 140watts, held true to 140watts under 2ch load and roughly 90 - 100 watts under 7Ch load. This was put up against an equivalent Yamaha model, which, in that owners test, the Yamaha (rated 140 watt) output 180watts under 2Ch, but drastically fell down to 40 and even 25 watts at 5 - 7ch load. In his testing, the Yamaha ended up blowing out its power supply, and he sent it for RMA. Of course, I would always recommend using multiple 2 channel power amps and using a Receiver as the DAC/Switch. Most modern receivers support pre outs. What you save in not buying an over priced receiver, you spend in amps. At the very least, Power the FL FR with a 2 channel.
@johncameron4172
4 жыл бұрын
I’m about to buy a 4 channel amp for my F-150. I put component speakers in each door. So, I have 4 woofers, 4 crossovers and 4 tweeters. They’re rated at 125 watt rms each. I don’t have a lot of money. So, I can’t decide between the Rockville DB45 or the Taramps DS800x4. The Rockville is class a/b and the Taramps is class D. Each have enough power but which one will be clearer? Have you any knowledge of either? You obviously know exactly what you’re doing. Any advice for me?
@iammaximus614
Жыл бұрын
… Are the Marantz, McIntosh’s worth buying?
@13thChip
6 жыл бұрын
Hi Gene, I am planning to purchase an AVR and considering the Denon AVRX4500H or Marantz SR6013. I am setting up my new house for Dolby ATMOS (5.2.4) and would be using my AVR for Movies/Music. I have not in person heard the quality of their sound output as I couldn't find any demo showrooms in the place I currently live. So I am banking on the internet reviews and make the purchase online. That's how I mostly do shopping and It works for me. If I have to decide between the two brands, which one would be better purchase for sound quality? My living room is about 12x10 sqft and I wouldn't drive them too loud. If not between these two brands, do you suggest something better in the same price band? What type and brand of speakers to go for (bang for the buck vs no budget constrains)? Please share your thoughts. Thank you for putting out such a wonderful and informative video on sound engineering.
@botdamian5688
4 жыл бұрын
The weird thing is, you're an audioholic but where did the audio quality go? an AT2020 and a scarlett solo 3gen AI is about 200euros / 250USD
@davidfarris8780
6 жыл бұрын
Gene, will you test a crown xls 2502
@keithraufer6894
6 жыл бұрын
David Farris yes please Gene
@Audioholics
6 жыл бұрын
I haven't but getting a ton of requests. I wish I had some local help to test all this stuff. I will put it on my list for next year.
@keithraufer6894
6 жыл бұрын
Audioholics yay!! Lol
@pking39
6 жыл бұрын
Audioholics It would be awesome to see how DriveCore technology from TI (Crowd XLS are using) would look on papers compare to UcD and Hypex N-Core. Excellent reviews and very informative tests and info from your web site, Thanks Gene
@marknash7113
6 жыл бұрын
Gene, sounds like your enterprise is growing nicely. I am available to outsource some testing or consulting. MSEE E&M -antennas and RF development and Audiophile for 30 years. Keep up the good work! Measurement first and foremost. Listen well.
@JL-qo7cs
4 жыл бұрын
High channel density? This is pretty technical from my point of view. But it is informative and interesting. I like home theater receivers. I use it with a 3.1 set up. Not real expensive.
@Geo-xj8ti
4 жыл бұрын
Great video finally something I can understand.
@gordthor5351
6 жыл бұрын
I am all for energy conservation, but I think it is ridiculous to pinch pennies and sacrifice sound quality for a 1-2 hour listening session. A KW hour of electricity is a few pennies and not many people are listening at 1000 watts. My Parasound JC1 mono blocks get a little toasty at 25 watts class A, but in the winter it is cozy with the added heat. I will admit it is not the best in the summer, but I won't listen long (listening fatigue) if it doesn't sound right (natural), so if it costs me 8 cents to listen to music instead of 3 cents on a class D amp, it is not going to break the bank.
@irisfailsafe
6 жыл бұрын
What about the new Lexicon class D amplifiers? Are there like Crown amps?
@hometheaterguyusa8464
5 жыл бұрын
Compare Lexicon, to Crown and QSC, slew rates and damping factors have better sound quality, with Lexicon.
@damienralentass7551
5 жыл бұрын
Hi Gene I'm look to find out what would be the best approach between a power amp like Outlaw 5000 or a Monolith 7X200 watts with an AV receiver like the Denon AVR-X4400H or go with a Preamp processor and a Power amp for a small dedicated room of about 14X9. I intend to use it for home theater of 5.2.4 speakers for starter and maybe add more speakers in the future(not search). Thanks I like your video and your articles, they are really good.
@srijitkp3
Жыл бұрын
You got me chuckling on the "to be honest, if you're listeninig to it so loud, you don't have any hearing left to begin with" ...lol! Stellar one, as always. love the research there!
@yogeshsakhare8299
6 жыл бұрын
Hi, if there is no transformer used, can we say it's class D amp like in my LG BH 6340H blu ray home theatre when I opened to see what's inside in it. I also got SONY str dn1080 with wharfedale speakers & I like the sound of both. Thx
@firebirdude2
4 жыл бұрын
14:20 Honest question. When viewing any chart, it's imperative to note the scale. Here we see, what looks like, 0.75db of variation in frequency response between all loads tested. Am I reading that right? 0.75db is barely an audible difference. And we're talking only at 30kHz? Though the overall frequency response is crap, the discussion at hand was regarding the change versus the load presented, yes?
@marianneoelund2940
4 жыл бұрын
The 0.75dB variation is not between the loads tested; it is between the 8 channels of the amplifier, when tested with 8 ohm loads. With a 4 ohm load, the 3dB peaking at 30KHz is not present, but as loads go higher than 8 ohms (which many loudspeakers do within certain frequency ranges), the unit tends towards instability. That was the primary point that Gene was making - there is a serious design issue.
@firebirdude2
4 жыл бұрын
@@marianneoelund2940 Ahhh thanks. Yeah I noticed the channels listed on the Key. But from what he was saying, I thought maybe the Key is automatically generated onscreen after each run or something.
@rolandlickert2904
4 жыл бұрын
I use NAD C- 388 integrated amplifier (D) used A and A&B power before but I made the Jump to D Power and I'm impressed plenty of power controls the speakers very well runs cool and has 90% efficiency never looked back
@sonicyouth29
3 жыл бұрын
Great amplifier. Surprised by how good it sounds.
@riffraff9000
5 жыл бұрын
I have a Proton D1200...I *think* it uses a variation of a Class G amp. They called it "DPD," "Dynamic Power on Demand." Rated at a conservative 100W per channel, they typically had about 7.7 dB of headroom.
@MacNifty
3 жыл бұрын
I have old school definitive technology bp 3000 towers. And they have to be on their own circuit. And then I have 3 receivers that have to be on their own circuit. I have a 50 amp service panel just to power my room. It is separated and conditioned powered directly from the Pole before the service to the actual building.
@alclowe1481
6 жыл бұрын
Gene, you're right when it comes to receivers, nowadays, we're talking about 7 to 11 channels of surround sounds, opposed to 5 channels. I rather have quality than features, but with that said, I've purchased a Pioneer Elite VSX-LX301 receiver, from Magnolia, section from Best Buy, about two years ago. I liked the performance it gives with two sets of Definity Technology PC-600 (5.2) and later (7.2) if I have the space for it. It may not have all those bells & whistles, but it gets the job done. Buy any chance did you get to bench test the VSX-LX301, if so what was the results?
@manjsher3094
4 жыл бұрын
Still loving my Krell KSA 50, just love it.
@215alessio
Жыл бұрын
Class D has that annoying Sibling that hurt. Class A is warm especially for headphones. And yes Class AB+ FROM PIONEER or technics or Danon from the 90's didn t had that sibling in it. Had a clean high freq response and strong bass while the midst were so clean and warm
@CanDoo321
6 жыл бұрын
Thank you.
@paullynch9231
3 жыл бұрын
I have 3 macro tech 5000 & 5002 VZ amplifiers,yes they are big but truly sweet soundings they give real quality compared to my new 20 k, however I want to know what is the best (d class) to replace em cas I'm so afraid to lose that quality
@dizzyscure1
6 жыл бұрын
Parasound JC5 vs Anthems SRT Amp?? I need to see your test reviews Gene :)
@nicholaslogo
4 жыл бұрын
+1
@mrtim6
6 жыл бұрын
Thanks very much for the reply and your excellent videos!
@professorpickles1
5 жыл бұрын
What do you think of the Emotiva DR line compared to the XPR series?
@nbrown5907
5 жыл бұрын
How about Crown class I have you looked at those yet? I have the XTI 2002 and love it.
@blueflame0003
6 жыл бұрын
My pioneer sc55 is a class D3 amp and boy its great on 9.2 i never ever crank my volume maybe a little over halfway and its too load...i just bought a fan kit for it to keep cool cause i have it enclosed now for 10 year's and im afraid its going to go out,but thinking of finding a good amp to biamp it with and just use it for processing...good video keep up the good work.
@dealzguyYT
5 жыл бұрын
Have the next version SC65 and it is absolutely amazing. Never went about -25 volume level from reference 0
@rb89509
4 ай бұрын
Love me some Class D amps. I have two Crown XLS-1500's running off my receivers preamp outs. One is set to High Pass for my Klipsch front speakers. The other one is set at Bridged / Low Pass for my Klipsch sub. These Crowns put out over 500 watts into 4 ohms in stereo, and over 1500 watts bridged into 4 ohms. Is this why I have tinnitus?
@johndyson4109
3 ай бұрын
ALL GARBAGE, If you want a true powerful sound in a PROFESSIONAL amplifier look no further than a CLASS H setup! The rest are swell but at the end of the day they are made and preform like a MATTEL toy..
@eiffe
5 жыл бұрын
Can you do a video on the new "full digital amplifiers" (Class-D without DAC)? There's almost no general info on them, especially on youtube. It almost seems like a conspiracy, because the few (usually Chinese) devices that are tested get rave reviews.
@clasvirhodes4969
4 жыл бұрын
china creates fake reviews of it's higher end products. Don't fall for it.
@eiffe
4 жыл бұрын
@@clasvirhodes4969 If you are talking about sites like aliexpress you are certainly correct. But have a look over at audiosciencereview.com, they do objective measurements and Chinese brands are often reviewed as best in price and sound quality.
@tommyK7282
3 ай бұрын
My amplifier is class A/B that has 200watts X 2 @ 4ohm. Speakers: American Acoustics DS1212 are 95db @ 1 watt 20hz to 20khz 275watts RMS
@tonezou3918
Жыл бұрын
Not technical? I didn't understand the schemes at all xD Anyway, very good summary though, but what do you think about hybrids? I have a hybrid 150/250 W into 8/4 Ohm Vincent amp that has Class A tube amp portion for the first 15W for the mids and highs and Class D for the low end. How efficient is that comparing to the mentioned types?
@nandiboyle9987
2 жыл бұрын
HI There Gene and All, can you help me please? I am wanting to upgrade my system to something extremely good quality and powerful. Currently I am running a Sugden A21 class A amplifier with Celef three-way speakers (I believe that company became the modern day Proac) I am keen to get a really very good, Maybe a good modern Class D Amp, hopefully not the most expensive one on the planet; but one definitely up to the job of bringing the best out of the Arendal 1723 monitors or even the towers. Also of course happy to hear any other recommendations of reasonably priced good quality speakers? Thanks in advance Kestrel.
@jtmcfarland3512
Жыл бұрын
Thanks for going beyond manufacturers’ specs. I’d like to see a much higher impedance linearity test though. Your graph is centered at zero ohms and tops out at 8. It would be much more helpful to see it start at zero with the top somewhere around 30 ohms. (A “4 ohm” driver isn’t actually 4 ohms; that’s its minimum)
@Megellin
4 жыл бұрын
Add a class a tube preamp to a class D and your getting a very alive bright but good bright sound
@ford1546
3 жыл бұрын
The quick answer is. Class-A full power on transistors for best sound. Class-B only power on transistors when there is sound in and it can create unfortunate audible things when transistors turn on. Class-AB. transistors are always on with a little power and never turn off completely. A class-D amplifier or switching amplifier is an electronic amplifier in which the amplifying devices (transistors, usually MOSFETs) operate as electronic switches, and not as linear gain devices as in other amplifiers. They operate by rapidly switching back and forth between the supply rails, being fed by a modulator using pulse width, pulse density, or related techniques to encode the audio input into a pulse train. The audio escapes through a simple low-pass filter into the loudspeaker. The high-frequency pulses are blocked. Since the pairs of output transistors are never conducting at the same time, there is no other path for current flow apart from the low-pass filter / loudspeaker. For this reason, efficiency can exceed 90%.
@jackruth2733
3 жыл бұрын
Currently (no pun intended) I have an early 90's Acurus A 250 amp. I am looking for another one an A 200 will work. Just want it for back up. There are no real issues it runs cool. I have a stick with a good thing mentality.
@BoudewijnvanHouten
Жыл бұрын
What about the Colorado based Jeff Rowland Design Group offerings all with switchmode powersupplies. Jeff Rowland makes ICE power poweramps for over two decades now and is considered one of the best in business and highend of course.
@TheaterAtReference
4 жыл бұрын
truly thankful for everything you've done Gene ..your expertise , passion has been very helpful
@pingardilie7398
2 жыл бұрын
Thanks Gene for your Explanation , we hope in the future we have a new Technology The sound like Class A but with the efficiency Class D , Because I am still like Krell power Amp
@Psyphonyx_Life
5 жыл бұрын
Thank you for this info.. Been asking questions to the community about the choices they make.. How this tech now can produce amazing results and the resistance to adopting modern solutions. =)
@fiolds350
5 жыл бұрын
In car audio... The old class a/b amps got incredibly hot.. And pushing them into low impedance loads. Holy smokes... Literally. That was the day of a dollar per watt.. Orion hcca car amps. Excellent sound quality. 75 watts rms. But .50 ohms 1200 semi reg power supply.. But you vould never feed it enough and it would blow up.
@pking39
6 жыл бұрын
Gene, I hope you have a chance to test the NAD M22 V2 in the future. Class D nCore and the specs they claimed on their website look awesome. If the test results from you guys = their specs. I am buying one for sure (light weight, very high efficient and good specs = value) :-)
@ThalesPo
9 ай бұрын
I wonder what characteristic in the audio objectively makes it fatiguing. And as far as I know, the phase shift introduced to a certain frequency is only proportional to how much it's being attenuated. At least on the kinds of filters that apply in this case.
@haircut2015
Жыл бұрын
I also have a dynco ST-150. I built in hight school. What class is that?? Again big heat sinks & transformer...
@ravichandran4589
2 жыл бұрын
Very informative and good insights. Btw have you reviewd NAD masters 7 channel power amp class D yet. If so pl l share the link. Thanks a lot.
@larryhazelwood5491
5 жыл бұрын
I have a 1988 Technics se-a5mk2 150 wpc power amp with new class a. It gets warm but not hot. Sounds great on my technics sb-m3 honeycomb disc monitors.
@kennethsrensen7706
4 жыл бұрын
Technically ´New class A´ is just a class AB with a ´fancy´name for marketing use. It´s a class AB amplifier also thats why it doesn´t get so hot.
@DiGiTaLdAzEDM
Жыл бұрын
I will soon be using a Yamaha AX-930 integrated amp. Where does that fall in the scheme of things re amp class? Thanks.
@MacNifty
3 жыл бұрын
Is what about class GH? That's what I have in my car. Arc Audio.
@WXSTANG
2 жыл бұрын
In regards to class H, manufacturers really need to bring back BASH now that the patent expired. It had an infinitely variable rail voltage.
@Audioholics
2 жыл бұрын
No need to. Class D is more efficient and better performing now.
@ericperry72
4 жыл бұрын
Surprised you didn't mention the ganfet class D amps. That is class D future.
@wric01
2 жыл бұрын
2021 Gallium amps are better and cheaper that most of these flagship amps.
@WWTFMAN_1989
4 жыл бұрын
I could not find out exactly what my amps are as of class it hard to find the right info for old amp i Imagine That it is a/b but I have a old Acom GFA-555II and a Acom GFA-7500. The 555 is powering 2 DX-9 Cerwin-Vega and the 7500 is powering 4 VS-120 Cerwin-Vega Speakers
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