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Site News: 20 Jul 2026

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Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Macondo’s lowest channel. 5805 
A mono LF channel – I do not like it. 5801 
LF Results 5801 
The size maters 5800 
Response Curve 5800 
ULF placement and power 5800 
Wishful thinking and the Maelstrom-21 5800 
I will need a direct radiator under the bottom… 5800 
ULF experience: Drivers & power considerations cont'd 5799 
To experiment during the New England winter 5799 
Pitching pitch 5799 
There are many key points…. 5799 
A first true bass test 5783 
Actually…. 5783 
Best place lost? 5778 
Best location for bass, where art thou? 5778 
What to expect from ULF channel? 5762 
OK, it is something. 5761 
The new ULF scenario experiments. 5754 
Time coherence of ULF - my experience 5754 
Placement of ULF #2 5754 
Why I like the like the location #1 5754 
I need to find another ULF solution. 5746 
Ceiling subs 5745 
The infinite baffle shall be a very good solution. 5745 
This morning I woke up horny 5745 
Dsp 5745 
Parametric filters 5744 
SMS 1, Act II 5744 
I think I have found the problem with my ULF 5744 
SMS distortion issue? 5744 
At 30Hz of high order there are not truly tone” of “sound” 5744 
DCX output stage mods 5744 
Very small minority of the folks… 5744 
Exactly zero I suspect. . . 5744 
DSP vs. Music vs. HT 5744 
10" array; how low? & SMS-1 distortion 5744 
Interesting: 10” vs. 15” 5744 
Multiples of the Same Rising Response Curve? 5744 
The crisis of perception. 5743 
Dynamic range of ULF, tsunami and something else. 5742 
The Circle Unbroken 5742 
I wonder… is it PP2000? 5726 
The ULF and PurePower 2000 5717 
ULF Channel and LP playback. 5660 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5658 
I do not have an opinion yet. 5658 
Imponderabilis Neurosis 5658 
Bass non-pathologic hallucination… 5658 
A new paradigm for ULF? 5658 
…a number of logical flaws… 5658 
MAD HATTER 5657 
Thinking about my lower bass 5637 
Has Schrödinger's cat moved in unnoticed? 5637 
Wrong. 5637 
Groove Echo 5637 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5636 
Listening help with ULF stimulator 5636 
The ULF debate: time-alignment 5634 
Trying to address the dilemma with lowest bass. 5633 
Rotary woofer for ULF? 5633 
I do not need a Rotary woofer, I need to be less Moron. 5633 
*** 5633 
Congrats 5632 
Getting some maturity with ULF 5631 
About ULF attenuation. 5630 
How is it implemented? 5630 
My implementation of ULF channel. 5630 
Further thoughts about ULF channel. 5629 
ULF 5629 
I would agree but… 5629 
The problem that that I see with my ULF 5629 
Loudspeaker Proximity Coupling in Midbass & ULF 5629 
Great rotary idea! 5629 
Brilliant analyses! 5629 
Going down with bass 5627 
Under FS 5627 
Ideal ULF/Midbass integration 5627 
My super smart room! 5627 
Erratum ( or errata if you insist) 5627 
The issue is a complex one and should not be addressed generically ... 5627 
Cost benefit analysis of midbass horns v/s compromised ULF 5627 
There is no cost-benefit analysis for this thing. 5627 
I will experiment. 5627 
Sometimes experiment is not just experiment. 5627 
One Bass Horn or Two – for Oxric 5626 
My ways to mimic Reality. 5626 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5626 
"the purpose of playing, whose end both at the first and now..." 5626 
No manuals for those things…. 5626 
More about Rotary ULF idea. 5621 
Phoenix Gold Cyclone 5621 
Passing the waves…. as usual.... 5617 
Drive ULF Amp from Midbass Amp Output 5616 
There is “something”… 5616 
I do not know what I deal with. 5615 
I want my ULF amp back. 5604 
ULF emergency: Big & nasty solutions 5603 
No-amplification time 5603 
Listening audio without ULF. 5602 
Ok, I got the bass amp… 5602 
How much power do I need for my ULF. 5592 
A True ULF - what an amassing tool!!! 5590 
Put Marchand Crossover into the game. 5586 
I begin to like my active crossover. 5574 
Line-level passive vs. active ULF filter 5572 
Hm, there is no way to escape the 4th order. 5572 
Phase butterfly effect. 5571 
Back to DSP? 5571 
What I am trying to accomplish. 5571 
The art of ULF volume adjustment. 5570 
Sitting on a fence with ULF 5568 
The overly-swallowable bass. 5561 
To deLamminate my ULF channel. 5560 
What a beautiful result!!! 5559 
Pipe Organ with 128' register in Augsburg, Germany 5553 
An absolute must for ULF channel. 5536 
The compartmentalized bass 5413 
Paralleled SET bass 5409 
A new concept of ULF channel. 5401 
Infinite baffle 5401 
A 4th order bandpass vibrator? 5401 
ULF idea, possibly stupid. 5400 
IB vs Horn 5400 
A Distributed Infinite Baffle? 5399 
"Tuning" the "IB" 5399 
Flip 90 degrees 5399 
Little bump and the elephant solutions 5399 
How to do THAT? 5398 
ULF from coffee table 5398 
The through-hole tapped horn. 5398 
25 hz at 6db? 5398 
ULF from the SledgeHammer 5398 
Why not really use the basement 5398 
Never say never 5398 
How good ULF needs to be? 5387 
How good the user needs to be? 5387 
Maybe . . . 5387 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5387 
Narrow [Band] Tuning (DSP?) 5387 
ULF-only Sound 5347 
An easy ULF solution for someone. 5339 
Red Grills 5339 
It is exactly what I would like to avoid. 5338 
So I took your advice 5280 
Ok, let me know how it goes. 5280 
The ULF amp Itch. 5266 
Here is an update for the old thread.... 2887 
Good highs 2887 
Marchand 1944 
What truly are you tryin to accomplish? 1944 
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