Open Baffle vs Forte I vs Heresy IV

Klipsch Forte I Demo
Klipsch Heresy IV Demo
Dynaco ST70 Demo
Dynaco PASIII Demo
Denefrips Ares II Demo
• Lii Audio F18 open baf...
Space Tech Labs, DAC DA-DSD1024-8X-TUBE-ULTRA, Power Amp SE-300B-100W-ULTRA, Preamp Reference-1-RV and Music Server Antipodes S30

[@mikehanks1399]

First time hearing an open baffle in all of my 50 years in the audio hobby. Those two Klipsch speakers are firewood compared to that open baffle. Very impressive.

[@mohanthakur519]

Open baffles sounds much cleaner and musical

[@a3marketing991]

I actually love the sound of the Forte. Richer sound with more bass, which I prefer.

[@mwdrums5816]

Thank you! Very deep soundstage of the OB. I have the feeling there is something missing if i hear the klipsches. Lower midrange on the f18 is just amazing. HPF of lii f18 plus S8 would be interesting. And also LPF. On w18 this OB rocks it.

[@davidatrakchi2707]

After my first listenning to OB speakers I simply could not get back to those boxed ones

[@LeoRousseau]

The OB's sound very realistic and clean... Thanks for the video! ✌️

[@rvaillant]

Very nicely made open baffles. What baffles me though is running the two full ranges in parallel. I would love to see a frequency response to show the phase cancelation issues.

[@hificave]

I love your videos dr D!

[@drde4010]

I love your videos as well. Keep up the great work!

[@bentleygt3716]

ohhhh. it's just pure 💖💖💖💖💖. sounds so lovely.

[@polbct6881]

Room resonance around 300Hz is so strong, it makes difficult to build any opinion really unbiased, I guess micro was at the center of the room... But 1 Heresy, 2 OB, and last Forte

[@citytianyu]

Agree.

[@todddonaldson2822]

Forte sounds the best to my ears. Recently had to pass up a set due to distance and low audio budget ha. Really want to find a set to try.

[@DustinDonohue]

Thanks for sharing your system. It's amazing! For the first song I personally liked the Heresy best, with the forte right behind. I felt like some of those electric sounds didn't perform well with the open baffles especially during the sounds that were like rips of cloth towards the end. However for the second song the open baffles were killing it. Would have loved to have heard the Heresy's for it.

[@DNSWRLD]

Your lucky if you are getting 45% of the overall sound being reproduced by those OB, through KZbins compression.

[@scottwolf8633]

@ 5:53 you state the 300B amp puts out 200-300 Watts of power, is this correct?

[@ldwahl6678]

Fortes are nice, yet a little more congested

[@quadspeak]

Congratulations on really superior sound. The open baffles have superior top to bottom definition although on headphones from an iPhone not sure if they are as coherent as the Forte. Forte is mighty high impressive also Is the OB a home made assembly? The woofer has a realism not heard with the garden variety boom subs Owned the Janis 15 inch and it was the last sub I ever liked

[@drde4010]

Baffle were custom made. Interesting that people can buy forte 1’s for a thousand bucks yet will spend up to triple that for a heresy IV.

[@quadspeak]

@@drde4010I’ve been at this over 50 years and can tell you that people really don’t hear the same way While it’s obvious to us that the open baffle and forte were superior, others hear it differently. I really don’t know how you get bass without a sealed box, but it’s superb

[@eirik5570]

Prefer the two Klipsch in this room, more open and real sounding. Ob is also nice, natural sounding, and in a bigger room maybe they would breathe more and edge the two Klipsches. Surprised how good the small Heresy sound:)

[@drde4010]

WIll take about 20 minutes to convert to HD.

[@stevescudder1507]

I preferred the Fortes.

[@drde4010]

May I ask why?

[@drde4010]

The effect you may be hearing is the way they each image, and with the open baffle the imaging is slightly splayed.

[@stevescudder1507]

The open baffle was distracting from the music and not natural. Most likely sounds a lot better in person. I was surprised the way the Hereseys held up.

[@Pierre-Leloup]

Fortes sounds more fullbodied than the OBs, but you have to hear this things in the real world, it's not easy to record an OB...

[@dougnichols3358]

Fortes sound the best to me.

[@ericsmith5540]

I like Forte's the best.

[@cruise2023]

Well, laptop + external dac + active speakers. The OB's runs over the other 2 ! More natural sound, certainly more evenly balanced and not paying attention to any area, like the other 2. My take :-)

[@mwdrums5816]

Hy Dr, a few questions. You are going from preamp 1 line to the dayton w18. And 1line to the f18s8 or are you going 1 line to dayton and from the dayton highpass to the f18s8? I see the dayton cross the w18 to 100hz? what is the hpf on f18s8? And how you are realize that. If you are not using rhe dayton hpf output? I want to build these OB. But one guy in the forum hast massiv problems to cross w18 and f18 even with aktive xo. Bow i am concerned

[@nrab773]

Hi I"m Daniels friend who built the open baffle speakers in the video. For clarification, the signal path is (Music Server - DAC - Preamp - Power Amp - Speakers) the top and middle drivers are full range and wired in parallel, why? Because I've tested both single drivers and dual drivers wired in parallel and found the increased harmonics of dual drivers was far better. Also the 18" driver is very organic and produces a cathedral like sound stage. The bottom drivers are subs which are a line out of the preamp into a subwoofer amp a Dayton Audio SA1000, and from there speaker cables to the subs, the crossover is adjustable, I dial it in depending on the type of music but 80-100hz. Open baffle speakers are very mid range focused so adding the subs transforms the speaker adding all the bottom end you could want. These are the fifth set of open baffle speakers I've built and are the best iteration by a very large margin surpassing everything else I've previoulsly built, and probably the last as I've taken the concept as far as I can. If you have more questions post them here and I"ll try to answer them.

[@mwdrums5816]

​@@nrab773 thank you very much for helping. are the f18+s8 running completely without filter (highpass)? 20 to 20khz. ? And also do you use the subsonic filter on the dayton to cancel 0 to 20hz?

[@nrab773]

Hi again, yes the Lii Audio Silver 8 (top) and Lii Audio F18 (middle) are full range speakers without any additional filters. The Dayton Audio SA1000 amp does have a subsonic filter.

[@mwdrums5816]

​@@nrab773hy again. Is the subsonic filter on or off in this recording ?

[@jorgebacani1901]

Hi, just wondering if you have tried using f15 and w15 together with s8? Thanks in advance.

[@freeradical6390]

What track was that? Sounds great!

[@drde4010]

Raising Venus by Malia.

[@freeradical6390]

@@drde4010 Thanku!

[@ericelmore887]

How do the open baffles sound compare to your Maggie’s?

[@drde4010]

At 7:45 we played one of the songs here with the Maggie's. kzbin.info/www/bejne/pHqzknhspZiVnMU

[@clemmtec9506]

Ob at its best,

[@jtavegia5845]

This only shows that with the right effort one can achieve great sound. My FAV Klipsch has always been the Corwalls with a nice EL 34 tube amp. . One day......Never a fan of the Heresy.

[@kenmcglown6642]

No contest!!! For me, the Klipsch speakers buy a country mile.

[@mambu5391]

Heresy😮

[@JD_and_TheBanned]

After your comment on the cost of wood I’d be curious to know how the costs compare across the three sets. Bang for the buck, etc.

[@drde4010]

It isn't even just the wood now. The industry saw the cost benefits of open baffle and are now competing to capitalize on it. As a result, some of the prices businesses are charging for open baffle speakers are pretty laughable.

[@JD_and_TheBanned]

@@drde4010does your friend offer up the design online? I’ve been collecting wood for this project.

[@drde4010]

It's a lot of work so unfortunately no.@@JD_and_TheBanned

[@JD_and_TheBanned]

@@drde4010thanks! I do appreciate the commentary you offer. I’m pretty convinced I want to liquidate my current gear and try a Dynaco and some Klipsch model. Based on your reviews I’m willing to try an early Forte but the only things I’ve heard lately are the Forte 4 and Heresy 4. Anyway - keep after it amigo!

[@drde4010]

@@JD_and_TheBanned well stay tuned. I have an update on the Dynaco that’s very positive.

[@naturalverities]

Too much room involvement in the OBs bass (duh!), otherwise nice enough. Heresies had the best "air", Fortes (about 40 years old!) the deepest and tautest bass. Reinforces to me that vintage Fortes like mine could shine with some active DSP multiamping and some deft EQ tweaks. I'd put a more modern mid horn lens on them too if there was room for such.

[@philippelabrecque6658]

Can we buy these open baffles?

[@drde4010]

They’re just a custom model. Not available

[@King_Dusty_Of_Pookytopia]

The drivers (tweeters, midrange, and woofers) prices have gone up. That us why open baffle speakers have become more expensive. Wood prices are so bad but thst to has gone up. It's not "inflation" its good old fashioned price gouging bring called inflation.

[@drde4010]

👍

[@middleearthltd]

No, it is inflation as that term is commonly used….an expansion of the money supply Excellent video content BTW

[@mark120371]

All great. But if you would put a crossover between the W18 and F18 if would clean them if greatly. May around 180-300hz and at least cap on the Sliver 8 to high pass them. But they sound great as is. Amazing job.

[@stevedeharde2712]

Running 2 full-range drivers in parallel? There has to be severe comb-filtering. I recommend that others don't try this at home.

[@drde4010]

At some point I think it would be interesting for us to run a separate crossover. I'll keep your comments in mind.

[@drde4010]

BTW, I've never found experimenting to be a thing to avoid.

[@stevedeharde2712]

I think experimenting is great! Keep it up. I apologize initial comment. I just know there is no way to avoid comb-filtering with your design. I am bringing speakers to market soon. You will see my solution.

[@drde4010]

Please share once you get that up and running. @@stevedeharde2712

[@clearbrain]

No bass in ob...very nasal I don't like the sound..it might give headaches

[@gee3883]

Sorry to disappoint but these are COPIES of the original Liii Audio's , it's a long complex story but these ARE NOT LII AUDIO.

[@drde4010]

What are you talking about? You mean bootlegs?

[@julesl6910]

Is this actually music that human beings listen to? It sounds like stuff for circus clowns

[@drde4010]

[@julesl6910]

Japanese Karate drum music@@pietjepuk5427

[@freeradical6390]

And people are afraid of Chinese HiFi. lol

[@user-pp6jd6qj4x]

Forte has cleaner and richer bass. Open baffle sounds poor.