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Site News: 16 Jan 2026
That old bug returned. Sometimes creation of new threat not going to work.  The replies still work. 
I will fix it soon.
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Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Macondo’s lowest channel. 5604 
A mono LF channel – I do not like it. 5600 
LF Results 5600 
The size maters 5599 
Response Curve 5599 
ULF placement and power 5599 
Wishful thinking and the Maelstrom-21 5599 
I will need a direct radiator under the bottom… 5599 
ULF experience: Drivers & power considerations cont'd 5598 
To experiment during the New England winter 5598 
Pitching pitch 5598 
There are many key points…. 5598 
A first true bass test 5582 
Actually…. 5582 
Best place lost? 5577 
Best location for bass, where art thou? 5577 
What to expect from ULF channel? 5561 
OK, it is something. 5560 
The new ULF scenario experiments. 5553 
Time coherence of ULF - my experience 5553 
Placement of ULF #2 5553 
Why I like the like the location #1 5553 
I need to find another ULF solution. 5545 
Ceiling subs 5544 
The infinite baffle shall be a very good solution. 5544 
This morning I woke up horny 5544 
Dsp 5544 
Parametric filters 5543 
SMS 1, Act II 5543 
I think I have found the problem with my ULF 5543 
SMS distortion issue? 5543 
At 30Hz of high order there are not truly tone” of “sound” 5543 
DCX output stage mods 5543 
Very small minority of the folks… 5543 
Exactly zero I suspect. . . 5543 
DSP vs. Music vs. HT 5543 
10" array; how low? & SMS-1 distortion 5543 
Interesting: 10” vs. 15” 5543 
Multiples of the Same Rising Response Curve? 5543 
The crisis of perception. 5542 
Dynamic range of ULF, tsunami and something else. 5541 
The Circle Unbroken 5541 
I wonder… is it PP2000? 5525 
The ULF and PurePower 2000 5516 
ULF Channel and LP playback. 5459 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5457 
I do not have an opinion yet. 5457 
Imponderabilis Neurosis 5457 
Bass non-pathologic hallucination… 5457 
A new paradigm for ULF? 5457 
…a number of logical flaws… 5457 
MAD HATTER 5456 
Thinking about my lower bass 5436 
Has Schrödinger's cat moved in unnoticed? 5436 
Wrong. 5436 
Groove Echo 5436 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5435 
Listening help with ULF stimulator 5435 
The ULF debate: time-alignment 5433 
Trying to address the dilemma with lowest bass. 5432 
Rotary woofer for ULF? 5432 
I do not need a Rotary woofer, I need to be less Moron. 5432 
*** 5432 
Congrats 5431 
Getting some maturity with ULF 5430 
About ULF attenuation. 5429 
How is it implemented? 5429 
My implementation of ULF channel. 5429 
Further thoughts about ULF channel. 5428 
ULF 5428 
I would agree but… 5428 
The problem that that I see with my ULF 5428 
Loudspeaker Proximity Coupling in Midbass & ULF 5428 
Great rotary idea! 5428 
Brilliant analyses! 5428 
Going down with bass 5426 
Under FS 5426 
Ideal ULF/Midbass integration 5426 
My super smart room! 5426 
Erratum ( or errata if you insist) 5426 
The issue is a complex one and should not be addressed generically ... 5426 
Cost benefit analysis of midbass horns v/s compromised ULF 5426 
There is no cost-benefit analysis for this thing. 5426 
I will experiment. 5426 
Sometimes experiment is not just experiment. 5426 
One Bass Horn or Two – for Oxric 5425 
My ways to mimic Reality. 5425 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5425 
"the purpose of playing, whose end both at the first and now..." 5425 
No manuals for those things…. 5425 
More about Rotary ULF idea. 5420 
Phoenix Gold Cyclone 5420 
Passing the waves…. as usual.... 5416 
Drive ULF Amp from Midbass Amp Output 5415 
There is “something”… 5415 
I do not know what I deal with. 5414 
I want my ULF amp back. 5403 
ULF emergency: Big & nasty solutions 5402 
No-amplification time 5402 
Listening audio without ULF. 5401 
Ok, I got the bass amp… 5401 
How much power do I need for my ULF. 5391 
A True ULF - what an amassing tool!!! 5389 
Put Marchand Crossover into the game. 5385 
I begin to like my active crossover. 5373 
Line-level passive vs. active ULF filter 5371 
Hm, there is no way to escape the 4th order. 5371 
Phase butterfly effect. 5370 
Back to DSP? 5370 
What I am trying to accomplish. 5370 
The art of ULF volume adjustment. 5369 
Sitting on a fence with ULF 5367 
The overly-swallowable bass. 5360 
To deLamminate my ULF channel. 5359 
What a beautiful result!!! 5358 
Pipe Organ with 128' register in Augsburg, Germany 5352 
An absolute must for ULF channel. 5335 
The compartmentalized bass 5212 
Paralleled SET bass 5208 
A new concept of ULF channel. 5200 
Infinite baffle 5200 
A 4th order bandpass vibrator? 5200 
ULF idea, possibly stupid. 5199 
IB vs Horn 5199 
A Distributed Infinite Baffle? 5198 
"Tuning" the "IB" 5198 
Flip 90 degrees 5198 
Little bump and the elephant solutions 5198 
How to do THAT? 5197 
ULF from coffee table 5197 
The through-hole tapped horn. 5197 
25 hz at 6db? 5197 
ULF from the SledgeHammer 5197 
Why not really use the basement 5197 
Never say never 5197 
How good ULF needs to be? 5186 
How good the user needs to be? 5186 
Maybe . . . 5186 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5186 
Narrow [Band] Tuning (DSP?) 5186 
ULF-only Sound 5146 
An easy ULF solution for someone. 5138 
Red Grills 5138 
It is exactly what I would like to avoid. 5137 
So I took your advice 5079 
Ok, let me know how it goes. 5079 
The ULF amp Itch. 5065 
Here is an update for the old thread.... 2686 
Good highs 2686 
Marchand 1743 
What truly are you tryin to accomplish? 1743 
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