I don't know that any 2 way speaker will do 30 hz. post 6591 NeilBlanchard says he can reproduce 37 if I read the chart right.
I've heard 32 hz out of organ speakers from petersen electromusic, Peterson Electro-Musical Products Inc. - Home
and Allen organ. I've heard a Petersen 18" at St Boniface church in Louisville. I'm helping install a pipe organ in a church that had an Allen 18" driver installed high up front, but the electronic organ died before I ever heard it. Some of Petersen products are 12". Something to do with the enclosures, I suppose.
None of the 18" ers from Peavey come close. 40 hz they say.
I've heard 32 hz out of organ speakers from petersen electromusic, Peterson Electro-Musical Products Inc. - Home
and Allen organ. I've heard a Petersen 18" at St Boniface church in Louisville. I'm helping install a pipe organ in a church that had an Allen 18" driver installed high up front, but the electronic organ died before I ever heard it. Some of Petersen products are 12". Something to do with the enclosures, I suppose.
None of the 18" ers from Peavey come close. 40 hz they say.
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The strausse-se-mf-2.1 and the jbl m2
I'm scared to call the issue IMD...might be something else that is causing the midrange warble.....inductance modulation was spoken up...never even heard the word before lol!
I'm scared to call the issue IMD...might be something else that is causing the midrange warble.....inductance modulation was spoken up...never even heard the word before lol!
I found this within the links you shared Fluid!
This is the bracing style I "created" using knowledge of TL....obviously its not new...but I feel like this is the best as the modes of the cabinet are that of the dimension of each cavity vs the whole cavity....seeing this picture was the confirmation I needed to move forward with confidence....thanks so much.
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indianajo, you make your own 30hz monster.
I took an eminence magnum 15lf (qts .45 and FS = 37hz) would make ideal ported 8ft3, tune to 33hz making f3 of 31hz...………..
granted, I had box 6+ft3 for 2 drivers, but it got down there (tuned to 27hz).
I took an eminence magnum 15lf (qts .45 and FS = 37hz) would make ideal ported 8ft3, tune to 33hz making f3 of 31hz...………..
granted, I had box 6+ft3 for 2 drivers, but it got down there (tuned to 27hz).
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My Snell Acoustics Type E/II with an 8" Vifa woofer played well down into the 30's. And the mass loaded transmission line speaker that I designed with a lot of help from folks here on this forum, and the Facebook group for transmission line speakers, play lower and better than any speaker I have ever heard.
The Linaeum tweeter is something very special - it plays from 480Hz on up, which makes the woofer's job a lot easier. The woofer is 93dB at 2.83V and the tweeter is about 94-95 dB.
The Linaeum tweeter is something very special - it plays from 480Hz on up, which makes the woofer's job a lot easier. The woofer is 93dB at 2.83V and the tweeter is about 94-95 dB.
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My boxes are made from 3/4" baltic birch and my bracing philosophy is sound....
If...solid wood...was placed over the exterior....am I creating a new resonance problem?
If...solid wood...was placed over the exterior....am I creating a new resonance problem?
I doubt it would cause a resonance problem but the solid wood will move more with changes in heat and humidity than the plywood will particularly across the grain. This can cause delamination or cracks and movement if not planned for.
ok awesome....I wanted to hide the unfinished parts of the plywood and try some Shou Sugi Ban aka charred wood. Charring the wood and embossing it in epoxy should help keep things tight...if I used 1inch thick planks I could add my chamfered edges too. I was also think to order them in a tile fashion and fill the voids in between with epoxy
You can get a nice effect on the exposed edge of plywood if you clean it up and put a few coats of wipe on poly or something like that over it. I did it on an Orion rebuild where I didn't want to have to veneer all the edges. I stained the top ply black which works much better when the edges are finished as it stops the colour leaking into the end grain. Picture is too big to insert so zoom the thumbnail when selected to see it better 🙂
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That looks nice....with the confirmation of the non resonance problem I guess I can move forward with what I've visualized so far. I really wanted to make it look like it was sculpted from a boulder but to copy nature is very very hard...Those epoxy resin counter top videos on youtube are not as good looking (to me) as they'd have you believe...or at least I have a keen eye for authenticity....so if I can't beat em....join em....charred wood has all the elements I want (organic...charcoal as a main color proponent)....I don't have to worry about how authentic it looks since....it is real wood lol...real slabs of stone...too expensive!!!
I can visualize the end result (and accept it as desirable)....that is usually my tell tale sign...it adds mass (which doesn't hurt) and I can get my chamfers....and its inexpensive. I can see just the sides finished like so and a charcoal/black gloss on the top/bottom boards. (The boards are 3/4"? Sounds good to meeee)
I can visualize the end result (and accept it as desirable)....that is usually my tell tale sign...it adds mass (which doesn't hurt) and I can get my chamfers....and its inexpensive. I can see just the sides finished like so and a charcoal/black gloss on the top/bottom boards. (The boards are 3/4"? Sounds good to meeee)
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Hi all, I'm back with a 2 ways solution which covers almost the whole spectrum with high spl and low distorsion 😉
Beyma liberty 8 (without any filter) + Beyma tpl150 (first order filter), BIB enclosure (5m+ horn)
I can now listen to good music working in my office
Beyma liberty 8 (without any filter) + Beyma tpl150 (first order filter), BIB enclosure (5m+ horn)
I can now listen to good music working in my office
I can also listen to good music with high SPL and low distortion in my OFFICE but I definitely can't sleep there as comfortably as you can !!! 😉
Regards
Charles
Regards
Charles
I do also only have a two-way with double 15" woofers and listened to this track at "violent massage" level. It turned heads with people walking next to our house with windows closed. I have the impression that my the ears were having more trouble with distortion than my woofers.
I usually take this track here for the "gargle test" with two-ways. The voice is recorded much cleaner than the vocals on the Rhianna track and therefore better usable for detecting anomalies:
KARI BREMNES Coastal Ship - YouTube
Regards
Charles
A couple tracks on the Billie Eilish album are like this ... bit it's done on purpose so don't blame the woofer(s).
The singer Kari Bremnes (who is performing the test song that I postetd the link for) once had the status of "Audiophile Godess" in Europe. Almost all of her songs are recorded very well and she has a beautiful voice, good technique and good musical taste.
I tried that Drake song as well. If there was any gargling it definitely went under because of the rattling doors and walls.
Regards
Charles
I tried that Drake song as well. If there was any gargling it definitely went under because of the rattling doors and walls.
Regards
Charles