The B452 was one of my products when I worked for Parts Express. It's quite limited, which should be apparent, but we (myself and another engineer) spent a bunch of time working to find the right balance between the tweeter and midwoofer, and the right capacitor value to blend the tweeter to the woofer, and we relied heavily on listening tests. (The MK402 was after my time.) It was a fun challenge to try to make the least expensive product possible that would have acceptable performance for many people, but it doesn't claim to be more than it is - a compromised, cheap speaker. We were aiming for a smoother and more natural reproduction instead of a biting treble or boxy, colored bass range which some cheap speakers have. I don't know if any changes have been made to the B452 since I moved on. The MK402 is intended to be a nicer speaker, obviously, and it has a lot more to offer, but still at a slightly higher mass-market price. Its 4-ohm load is actually a good match for the small Class-D chip amplifiers that have become widespread in the last 10 years.
@JohnAudioTech
4 жыл бұрын
Thanks for chiming in. You did fine for bringing a super low cost speaker to the market. I don't like the "boxy" sound of some small speakers and these do keep it to a minimum. I use them as the main speakers on my TV. They are more than good enough for rear channel use and way better than those plastic computer speakers.
@franciscorompana2985
4 жыл бұрын
Fair. To design a good speaker you go from the main driver. Then you fit/blend your options in. There's a lot of work on choosing the main driver. Price is also a constraint but not the most critical. Some of the good drivers are not manufactured any more.
@northsouth8884
3 жыл бұрын
I have them as side and rear speakers (my front speakers are Aurum Cantus) and they work great!
@CoolDudeClem
4 жыл бұрын
I prefer the speaker on the left, despite apparently being worse, it has more presence (at least to my ears) and it's more my style. Would be even better looking with a woodgrain finnish. The other speaker is too modern looking for me. Woodgrain and box-style forever!
@1pcfred
4 жыл бұрын
How's your annoying neighbor? They lock him up yet?
@fordssuck
3 жыл бұрын
The b452 sounded better. Clearer highs and better mids. Buying them for a 5.1 surround. Believe they'll be great for that
@mvanalst2003
3 жыл бұрын
It’s impressive to be able to hear and noticeable difference between the two models of speakers. Mk402 For a big win, in my opinion. Thank you for creating and posting the content.
@migalito1955
4 жыл бұрын
Yep, even turned to mono and sent via Bluetooth I could hear the difference. I did not notice the highs roll off, but I did hear the bass pick up on the speaker, MK402, seen on the right. I bet missing the difference in high frequencies has a lot to do with owning a pair of 64 year old ears.
@EngineeringEssentials
4 жыл бұрын
Can u do a video on SMPS powered amplifier vs Transformer powdered amplifier. What are the differences in power output, power input and frequency response.
@johndesousa7379
3 жыл бұрын
like apples and oranges. Seems like the b452's speaker is more of a full or midrange speaker and the mk402 is more of a woofer or midbass speaker. 2 different uses. I think if all I was getting was one or the other I would definitely get the mk402 however if I was also buying a subwoofer then I would not need the mk402 for bass and I would rather have the b452.
@Automationacademytv
4 жыл бұрын
Thanks for sharing your knowledge very informative, it inspired me to focus more making electrical video
@15743_Hertz
4 жыл бұрын
I have the Dayton Audio B652s and They've got a good high frequency response, the bass is okay. For 50 bucks, the price to quality ratio is very good.
@15743_Hertz
4 жыл бұрын
@Jason Reyes The b652 Air. It was on sale for 50 bucks. I wouldn't get the b652's as the tweeter in that model is very shrill sounding.
@TononiaWorld
4 жыл бұрын
the B452 are good for home theaters as it would improve dialog.
@EspHack
4 жыл бұрын
I've been wanting to buy a pair of MK402X or micca mb42x for a while now, I currently have an old AIWA stereo paired with a sub at 80hz crossover, the AIWA speakers are 6ohm, ported, 4" woofers with no tweeter at all, but the cabinets are huge and heavy for some reason, I wonder if the MK402x would be a noticeable upgrade?
@1pcfred
4 жыл бұрын
I bet those MK402s sound good in person because I noticed the difference here. I don't have the greatest speakers to listen to either.
@manFromPeterborough
4 жыл бұрын
Hey John, have you considered the micca speakers? the base model is one cap X over and the X model has 9 part X over 12dB with zobel across the woofer, I have the base model and it sounds better than Polk T15, the Polk's treble too flat and 130Hz honk, the micca's have the same tweeter as the 402 but is 8 ohm and the micca woofer is 4 ohm hence the impedance on the micca says 4-8 ohm
@JohnAudioTech
4 жыл бұрын
I've heard good things about them. it would be nice to try them out some day.
@joshuawang5859
4 жыл бұрын
MK402 is way more better than B452. it sounds better in every way, fuller, balanced, more freq extension,
@carrizzle9586
4 жыл бұрын
The capacitor doesn't block the meter from reading the resistance. Capacitor have an ESR (Equivalent Series Resistance) rating and is shown in parallel with the speakers resistance thus giving you the total resistance of the tweeter. The speaker resistance is a combination of the woofer and tweeter resistance together giving you the total resistance. And 6 ohms is a speaker rating nowadays. Just needed to spread some useful information. But good video.
@JohnAudioTech
4 жыл бұрын
You can't read the tweeter's resistance through the capacitor because the DC current the meter puts out will charge the capacitor causing no current to flow through the tweeter's coil.
@carrizzle9586
4 жыл бұрын
@@JohnAudioTech You never mentioned if the capacitor was in parallel with the speaker or not, but after thinking about it the capacitor would have to be in series with the tweeter to block the low frequency sounds. Everything stated in my comment was based on a parallel configuration, and of course you can't read a resistor through a capacitor with a multimeter. But good video anyway.
@DAVIDGREGORYKERR
4 жыл бұрын
If they had gone with powered speakers they could have had a two DSP processors doing the work of the filter networks inside the speaker cabinets plus PWM output stages for the Woofer and Tweeter maybe that would have been better.
@noelj62
4 жыл бұрын
The MK402 seems impaired in the mid range frequencies. Sounds much like out of focus stereo image.
@chrisharper2658
4 жыл бұрын
I bought a set of the B452-AIRs for the TV and they are dreadful. They were so bad that I pulled the drivers out, made my own cabinets and crossovers and still not very happy with them. Those woofers look just like the RS Minimus 7's but with a poly cone yet they're worse. AMT tweeters seem okay.
@manFromPeterborough
4 жыл бұрын
I have the 652 AIR speakers, the cap had to be reduced to 4uF from 6.8 and inductor added to woofer to sound decent
@russellborrego1689
4 жыл бұрын
Good video 👍👍
@GeoBass-89
4 жыл бұрын
Dayton MK402 have verry good sound and look better
@Kareggan
3 жыл бұрын
The MK402 is so much better. Almost can't really compare them.
@hadiprayitno8632
4 жыл бұрын
sorry sir .... i like b452 sound in this video... once again sorry....best regard
@aurthorthing7403
4 жыл бұрын
I was hoping to see the crossover.
@JohnAudioTech
4 жыл бұрын
I opened the MK402 in the other review video (see description). The new X version shows the crossover on the partsexpress site.
@1pcfred
4 жыл бұрын
@@JohnAudioTech you sold them out. www.parts-express.com/dayton-audio-mk402x-4-2-way-bookshelf-speaker-pair--300-465 OUT OF STOCK Due In: 5/10/2020
@ferrumignis
4 жыл бұрын
@@1pcfred The X model is not yet available, that's why it's out if stock!
@cassvirgillo3395
4 жыл бұрын
Hello John, Sounds like your doing good. The MK402 had more bass, nice sounding overall. Good time to stay home and do amps, etc.. This may be personal, in which case ignore, how is your Brother? He's in my thoughts and prayers. Be safe, Best, C.
@JohnAudioTech
4 жыл бұрын
Hi Cass, He had knee replacement surgery and is staying at my parents house to recover. They discovered the cancer when examining his knee in preparation for the surgery. He goes in for a PET scan in a couple days to see if the cancer is anywhere else besides his lung and leg.
@trapperainsworth2435
3 жыл бұрын
What do you think of the Dayton Audio MK442 Pair dual 4" subwoofer 80w rms per channel hooked up to a Dayton Audio DTA PRO amplifier over 10 awg wire?
@JohnAudioTech
3 жыл бұрын
I haven't heard the combination. Worth a try I'd guess. Unless the wire run to the speakers is very long, 10 AWG is overkill.
@nikolatesla4030
Жыл бұрын
Can somebody measure port for me (diameter and lenght)?
@tomz58
2 жыл бұрын
Please tell me if I can connect these Dayton speakers to my laptop computer with an included 3.5 inch plug/cord?
@JohnAudioTech
2 жыл бұрын
You would need an amplifier to power these speakers.
@jonnyrocker7919
4 жыл бұрын
Right again !
@pliedtka
4 жыл бұрын
The one in the left to me just by the look of the tweeter will measure like crap. Wow, huge port ;), but for the money should be OK at least MK402 has proper crossover.
@megreyaugust
4 жыл бұрын
Would you consider making a video on a chip amp YD1028. And is it's possible to run 3 speakers I mean one left one right one subwoofer on one chip. I think it is possible but I need your opinion on it. I have tried with other amps. The way I wire it : Amp L+ to L+ spk and Amp R+ to R+ spk then L- spk goes R- spk from there I jointed to + woofer and the - woofer goes back to - Amp . I installed a 100uf N/P parallel to the woofer. By the way these amps are not a bridged type. Speakers 8 ohms 4 inches and woofer 4 ohms 10 inches.
@ferrumignis
4 жыл бұрын
That will give you some mixing of the two channels, ruining the imaging. Damping is reduced with the extra impedance, and maximum power is also reduced at the low frequency end, right where you need it.
@clee2423
4 жыл бұрын
the B452 seems to have a lower treble than the MK402
@tatialo37
4 жыл бұрын
I need a pair to replace my Optimus speaker!
@HumbleTrader001
4 жыл бұрын
Which pair did you buy to replace the Optimus? I have old Optimus Pro X55avs which still work fi ne, and wondering how these compare.
@stevenswall
4 жыл бұрын
The one on the right looks better engineered to have more extended bass and less diffraction.
@jamespalmer7629
4 жыл бұрын
The mk402 reminds me of Bose bookcase speakers.
@nofooling2
4 жыл бұрын
MK402X speaker is powered Bluetooth speaker
@JohnAudioTech
4 жыл бұрын
No, that would be the MK402BTX. The MK402X is the passive speaker.
@nofooling2
4 жыл бұрын
JohnAudioTech You are correct, but the x version is not available until May. BTX sounds like a good speaker for computer and phone or tablet.
@BogdanSerban
4 жыл бұрын
The b452 sounds like a tin can. Btw, look for royalty free music, like nocopyrightsound and stuff like that.
@russellhltn1396
4 жыл бұрын
Unless it comes from KZitem's own library, you still risk getting hassled by trolls. 12voltvids has done a few videos on that.
@jean4756
4 жыл бұрын
I am watching your vídeo yes I see yes Big differences Chanel left and right and for me left Channel Yes Good work Perfect Sound left speaker and Twitter very good sound. And Right Channel no Perfect no is good sound perfect not good speaker and not good Twitter not is good sound and not is perfect Sound. 👍👌👉👏👏👏👏
@Jeffdachefz
3 жыл бұрын
both are pretty horrible sounding lol mk402 is the less cruddy one tho.
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