Love these updates. The solution I use for the woofers is a crown xls 2002 with built in low pass filter, not high end but works perfectly. I run F12 full range and low pass my woofers at around 180Hz. You might be surprised how good the crown works in that task
@hificave
Жыл бұрын
Ohhh that would be interesting! Thanks!
@eldloppa2
Жыл бұрын
Sounds pretty cost effective too!
@october001
Жыл бұрын
I run the older XLS 1500, one driving 8" full range in OB and the other running 18" woofers in H-frames. I've been very happy with this for several years. Great amps!
@lyricaudio
Жыл бұрын
Thank you so much for sharing your amazing videos on KZitem! They are original and have given me a lot of fun and entertainment. I really appreciate the effort and creativity you put into them. Keep doing what you love!
@markceci9896
Жыл бұрын
I wouldn't mount the 15 much lower than 30 inches off the floor. I find that the Soundstage will be natural height in the middle, floating above the baffles. But, it will start to droop at the far edges left and right if mounted too low to the ears. Tipping the speaker back helps some, but won't suffice if too low. That is my experience. I love the F15. The Fast 15 is thinner sounding, perhaps due to more extension up top. The F15 has a better QTS rating for OB and it shows up in the bass and upper bass.
@hificave
Жыл бұрын
Yup!!
@billbones1000
Жыл бұрын
Nice one! Ive been living with a set of F15s mounted in a set of DIY "barrel baffles". With a set of REL subs I'm in heaven!!!! I absolutely love these speakers.
@eldloppa2
Жыл бұрын
Haha. Love the energy! And yeah it sure sounds like low-passing the W15 is what you're headed for. Even a simple first order should suffice, right, and have minimal added distorsion.
@cpodurnell3701
Жыл бұрын
I have a triple stack, the W15 powered by a subwoofer amp, the new fast 15, topped off with a 8 inch premium. I love them!!!!
@Windansea
Жыл бұрын
you really should post a video of these, sounds very intriguing! no need for super tweeter for the top end?
@helifynoe9930
5 ай бұрын
What I created, is a push pull effect. The front speakers have one 15' woofer, two mid-range dome drivers, and four dome tweeters. But in the background behind me, are woofers that are 180 degree out of phase. This creates a push pull effect on low frequencies. Holy crap. The whole room is filled with the low frequencies as a result. By the way, I built the front speakers myself in 1978. Anyhow, when the front woofers push out, the rear woofer pull in, and thus they work together. An incredible outcome indeed.
@terrywho22
Жыл бұрын
Back in my bass playing days, I loved having a 15" driver in my rig. 4x10" cabs were nice, but just didn't have the impact. A 2x12 was a step up and very good, but 15" drivers just had the right sound, drive, and presence. I'm just surprised they are good enough in the mids to act as a full range driver for hifi. I would expect a degree of thickness/lack of agility that would be difficult to overcome. Very interesting results!!
@hificave
Жыл бұрын
Theres something very “comforting” about larger drivers.
@ebonneau1
Жыл бұрын
Great video! Hope I will have the chance to experiment the cave on of these days…. 😉
@Windansea
Жыл бұрын
I was checking out that chevron butcher block wood for exactly this purpose. Great minds think alike! Already did fast-8s with circular tabletops and they've performed wonderfully, so thanks to your excellent videos I'll be trying F18s and F15s and W15.
@Coyotehello
Жыл бұрын
O h I agree, you do not want the 'mechanical' vibrations from the driver through the wood. You only want the sound wave resonating through that wood. That being said, why didn't you install the drivers from the back as Decware does???
@hificave
Жыл бұрын
….… I screwed up the cut and didnt want to waste the panel.
@Coyotehello
Жыл бұрын
@@hificave honest answer, it takes a big man to admit his mistakes! Kudos to you 🙂 I just about starting to build betsy baffles with F15 and butcher block table tops. I hope I won't make any mistakes!!!
@hificave
Жыл бұрын
@@Coyotehello thats why I started this with mdf. Cheap, and easy to learn. Im not ready for a real exotic wood yet.
@kamijani1
Жыл бұрын
Loic great video as usual. My experience with the Fast 15 in Caintuck Audio’s 1.5 inch Magnum Baffle using a combination of walnut and African sapele is very good. They are low to the ground, and Not thin sounding at all and after 500 hrs of break in, I’m extremely satisfied with the bass (as you said, it probably won’t satisfy bass heads though).
@xr400rrr
3 ай бұрын
Great review, thank you. I am experimenting with the F15, and I found that may be a little rising response compensations is needed? What are your thoughts, thank.s
@NosEL34
Жыл бұрын
Sublime Acoustic Crossover. I came across this the other day. Looks like a good analog crossover..but I have not tried one yet
@hificave
Жыл бұрын
Thanks! Wasn’t aware of those.
@Atheistic007
9 ай бұрын
I saw the Robertson heads and I knew you were a fellow comrade!!
@hificave
9 ай бұрын
😎
@benoitdugas745
8 ай бұрын
Merci!
@shogo3300
Жыл бұрын
Great vid Loic! Looking forward to the Puritan 156 review. Not sure if its a big ask, but could you pls do a short vid with and without in the system? Many thanks!
@hificave
Жыл бұрын
Audio sample? Any song requests? 😎
@shogo3300
Жыл бұрын
@@hificave Yes just a short audio sample with the 156 in the system and without as a comparison. Songs...entirely your call :)
@eldloppa2
Жыл бұрын
Oh one more thing. Once you find a driver like the F15 that's just SO close to perfection all on its own... Do you get tempted to NOT put the bass driver on one and the same baffle? As in, experimenting instead with open separate woofers or so. I realize there's benefits and drawbacks of course, but maybe a dedicated structure for those and being able to get the F15 a bit lower closer to natural ear height might be beneficial? I'm by no means experienced here, just thinking out loud :) In coming from the angle of having amps that can do correction and distance compensation etc (Lyngdorf currently) so of course that gives some extra degrees of freedom that might not apply here in the given setup.
@hificave
Жыл бұрын
For sure!! In fact it sounded so good on their own u remembered how good they were in my first original baffles, but I am still trying to get the magic with the w15. As the f15 on their own, in a perfect setup cant pressurize a room like w15 can.
@johnsnowlow1883
8 ай бұрын
Hi, i am looking at building one...if i am after full bodied warm playback, would it be "correct" to pair W15 with F12 ? Or shouild this warm signature be achieved by crossover ? Thanks look forward to your insights
@hificave
8 ай бұрын
Depends on the baffle or speaker cabinet design. Otherwise through crossover.
@johnsnowlow1883
8 ай бұрын
@@hificave Thanks !
@cpodurnell3701
Жыл бұрын
Since we are on this open baffle quest, how about I do a reviewer of the day for your next update to share my system!
@hificave
Жыл бұрын
email me some pics and description. check my about section for contact info.
@mark120371
6 ай бұрын
When I hear you talk about the difference between the size and focus of the images in the soundstage between 15" the smaller 10" units, Not so much in this video but in some of your others. Hmmmm That makes me think, could the F12 be the best of both worlds? Match the F12 with the W15 and high-pass the F12 150hz and low pass W15 around the same. Makes me wonder if we could get a little more image focus and black space between them without lossing much of that Grand scale life size images you and I both seem to love!!!!
@hificave
6 ай бұрын
Good hypothesis! I am also thinking if ways to improve focus on the full ranges. You might be onto something, as I heard the small AL-4 drivers and thr focus is better. Similar to the fast8 focus being better.
@mark120371
6 ай бұрын
@@hificave Also looking at the response of the F12 vs the F15. The F15 does have flatter responses however the F12 has a rising response in the upper range which usually gives a sense of more detail. That rising response is very smooth with any major dips. Next F12 is very efficient, looking at the graph it is about 100db at 100hz which enables the use of both coils on the W15 to up the take advantage of the extra sensitivity to match the F12 very high sensitivity in the low mid and up range. Really sound an F12 in the middle of two W15 or above them would be an outstanding match as the second W15 will at that extra sensitivity to match the plan usable range of the F12. Looking at the graph tells more of the store of efficiency of the drive in the plan range of usage then the rate sensitivity as the rate sensitivity is an average of the complete state usage range.
@Stephenwongdirectimaging
11 ай бұрын
U can try out the lii audio 15 Alnico 15 inch speaker it will bring u to totally next level
@hificave
11 ай бұрын
I dont see a way to acquire the 15 alnico driver short of aliexpress… too many counterfits there, not ready to risk it… Is the lii-audio alnico 15 similar to the platinum 15 of lii-song?
@asadabbasmirza9519
Жыл бұрын
Learning Thank u
@hificave
Жыл бұрын
So am I. Thank u for watching.
@irisfinchmusic
Жыл бұрын
What’s the advantage of using the W15 - versus just using a REL Sub?
@hificave
Жыл бұрын
W15 is not a sub, but if all I need is to fill under 100hz then a rel sub will be great.
@MrHardbats
Жыл бұрын
A closed or ported sub is very difficult to combine with an open baffle. The type of sound is different and doesn't really blend together. The W15 in OB can go subwoofer low but has the OB advantage and sound and can play really high up for such a big woofer
@hificave
Жыл бұрын
@@MrHardbats yes. I agree, but with a quality subwoofer, it can work as long as they dont need to go over 60hz otherwise it becomes odd with open baffle sound.
@ScoobyGFunk2
Жыл бұрын
If you had to pick between the F-15 and the Fast-15 which do you prefer as the best overall full range driver?
@hificave
11 ай бұрын
I think f15 in open baffle is more fun. But in an enclosed speaker fast15 is more fun.
@MrRourk
Жыл бұрын
Get a DAC and hook a tv in. Home theater system :)
@johnnygill1725
Жыл бұрын
Hi there, just wanted to make a suggestion to your butchers block , F15/ W15 combo. I’m currently running Betsy baffles with F8’s and a OB W15 sun to great effect, especially for the money I spent, as home made. I was thinking of making F15 baffle with dual W15 OB subs , or W15’s on the same baffle as F15’s as you have. Then having 4 amplifiers used with an active crossover, like a mini DSP unit, And possibly trying Dirac live with it. I feel there might be a better chance for getting the bass right with OB subs, as more flexibility with positioning. Nice to get your thoughts on that please. J
@hificave
Жыл бұрын
I am not familiar with Dirac.. But, the quad-amping with a DSP is the way to go. I am now using a crown XLS for its built in DSP to drive only the W15, and using a TON of tubes for the f15. :-) the results so far are quite good. I have however separated the baffle in two. The w15 in some instances was pushing so much air that it was causing some vibrations in the baffle that impacted the F15. I figured this out, by playing just the w15, and held my ear close to the f15 and I could hear some of the sound reflecting off the f15 (which were off). since I separated the baffle in two sections held by U shaped metal brackets with rubber gaskets so the metal did not carry vibrations from the bass panel to the f15 panel it sounds a lot better to me. Better resolution and stereo image now.
@johnnygill1725
Жыл бұрын
@@hificave thanks for your reply. I think the whole OB & Lii audio journey you’re on has been very interesting. I discovered them about two years ago, on the decware site, and just thought I could make them , and I did. Have learnt much about them since, from great channels like yours. For me they offer great price to performance, especially making them yourself. Synergy , clean power, and room behaviour, as you have discovered recently, so important for the complete experience. Great work so far with your projects, keep it up and I look forward to more from you. 👍🏼
@hificave
Жыл бұрын
@@johnnygill1725 thank you sir.
@firecloud77
Жыл бұрын
*"Can only be shipped within Canada."* Arggghh!
@hificave
Жыл бұрын
Lii-audio.com
@firecloud77
Жыл бұрын
@@hificave Thanks!
@gbrm6077
Жыл бұрын
How do these compare to the Liionidas, especially in the upper midrange and treble?
@hificave
Жыл бұрын
Liionidas with silver 10, extends more in the treble, more sparkle, more air. More textured mids. But these f15/w15 have a more “exaggerated” image size, and a softer midrange with more meat/thicker in the mids.
@itsGnTO
Жыл бұрын
Not sure for example if the Dayton Audio SA100 100W Subwoofer Amplifier would work for you to drive the W15s. Amazon sells it.
@hificave
Жыл бұрын
I have been thinking about it.
@timball4892
Жыл бұрын
@@hificave I have a pair of the Dayton SPA250 class AB plate amps and awaiting my delivery, Tuesday, of a pair of W15's. I also have a pair of the Lionidas crossovers. Main amp is a Rogue M180 Dark monos. I will be trying all options once I complete the baffles. 1.5" thick butcher block.
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