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Site News: 17 May 2026

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Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Macondo’s lowest channel. 5754 
A mono LF channel – I do not like it. 5750 
LF Results 5750 
The size maters 5749 
Response Curve 5749 
ULF placement and power 5749 
Wishful thinking and the Maelstrom-21 5749 
I will need a direct radiator under the bottom… 5749 
ULF experience: Drivers & power considerations cont'd 5748 
To experiment during the New England winter 5748 
Pitching pitch 5748 
There are many key points…. 5748 
A first true bass test 5732 
Actually…. 5732 
Best place lost? 5727 
Best location for bass, where art thou? 5727 
What to expect from ULF channel? 5711 
OK, it is something. 5710 
The new ULF scenario experiments. 5703 
Time coherence of ULF - my experience 5703 
Placement of ULF #2 5703 
Why I like the like the location #1 5703 
I need to find another ULF solution. 5695 
Ceiling subs 5694 
The infinite baffle shall be a very good solution. 5694 
This morning I woke up horny 5694 
Dsp 5694 
Parametric filters 5693 
SMS 1, Act II 5693 
I think I have found the problem with my ULF 5693 
SMS distortion issue? 5693 
At 30Hz of high order there are not truly tone” of “sound” 5693 
DCX output stage mods 5693 
Very small minority of the folks… 5693 
Exactly zero I suspect. . . 5693 
DSP vs. Music vs. HT 5693 
10" array; how low? & SMS-1 distortion 5693 
Interesting: 10” vs. 15” 5693 
Multiples of the Same Rising Response Curve? 5693 
The crisis of perception. 5692 
Dynamic range of ULF, tsunami and something else. 5691 
The Circle Unbroken 5691 
I wonder… is it PP2000? 5675 
The ULF and PurePower 2000 5666 
ULF Channel and LP playback. 5609 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5607 
I do not have an opinion yet. 5607 
Imponderabilis Neurosis 5607 
Bass non-pathologic hallucination… 5607 
A new paradigm for ULF? 5607 
…a number of logical flaws… 5607 
MAD HATTER 5606 
Thinking about my lower bass 5586 
Has Schrödinger's cat moved in unnoticed? 5586 
Wrong. 5586 
Groove Echo 5586 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5585 
Listening help with ULF stimulator 5585 
The ULF debate: time-alignment 5583 
Trying to address the dilemma with lowest bass. 5582 
Rotary woofer for ULF? 5582 
I do not need a Rotary woofer, I need to be less Moron. 5582 
*** 5582 
Congrats 5581 
Getting some maturity with ULF 5580 
About ULF attenuation. 5579 
How is it implemented? 5579 
My implementation of ULF channel. 5579 
Further thoughts about ULF channel. 5578 
ULF 5578 
I would agree but… 5578 
The problem that that I see with my ULF 5578 
Loudspeaker Proximity Coupling in Midbass & ULF 5578 
Great rotary idea! 5578 
Brilliant analyses! 5578 
Going down with bass 5576 
Under FS 5576 
Ideal ULF/Midbass integration 5576 
My super smart room! 5576 
Erratum ( or errata if you insist) 5576 
The issue is a complex one and should not be addressed generically ... 5576 
Cost benefit analysis of midbass horns v/s compromised ULF 5576 
There is no cost-benefit analysis for this thing. 5576 
I will experiment. 5576 
Sometimes experiment is not just experiment. 5576 
One Bass Horn or Two – for Oxric 5575 
My ways to mimic Reality. 5575 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5575 
"the purpose of playing, whose end both at the first and now..." 5575 
No manuals for those things…. 5575 
More about Rotary ULF idea. 5570 
Phoenix Gold Cyclone 5570 
Passing the waves…. as usual.... 5566 
Drive ULF Amp from Midbass Amp Output 5565 
There is “something”… 5565 
I do not know what I deal with. 5564 
I want my ULF amp back. 5553 
ULF emergency: Big & nasty solutions 5552 
No-amplification time 5552 
Listening audio without ULF. 5551 
Ok, I got the bass amp… 5551 
How much power do I need for my ULF. 5541 
A True ULF - what an amassing tool!!! 5539 
Put Marchand Crossover into the game. 5535 
I begin to like my active crossover. 5523 
Line-level passive vs. active ULF filter 5521 
Hm, there is no way to escape the 4th order. 5521 
Phase butterfly effect. 5520 
Back to DSP? 5520 
What I am trying to accomplish. 5520 
The art of ULF volume adjustment. 5519 
Sitting on a fence with ULF 5517 
The overly-swallowable bass. 5510 
To deLamminate my ULF channel. 5509 
What a beautiful result!!! 5508 
Pipe Organ with 128' register in Augsburg, Germany 5502 
An absolute must for ULF channel. 5485 
The compartmentalized bass 5362 
Paralleled SET bass 5358 
A new concept of ULF channel. 5350 
Infinite baffle 5350 
A 4th order bandpass vibrator? 5350 
ULF idea, possibly stupid. 5349 
IB vs Horn 5349 
A Distributed Infinite Baffle? 5348 
"Tuning" the "IB" 5348 
Flip 90 degrees 5348 
Little bump and the elephant solutions 5348 
How to do THAT? 5347 
ULF from coffee table 5347 
The through-hole tapped horn. 5347 
25 hz at 6db? 5347 
ULF from the SledgeHammer 5347 
Why not really use the basement 5347 
Never say never 5347 
How good ULF needs to be? 5336 
How good the user needs to be? 5336 
Maybe . . . 5336 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5336 
Narrow [Band] Tuning (DSP?) 5336 
ULF-only Sound 5296 
An easy ULF solution for someone. 5288 
Red Grills 5288 
It is exactly what I would like to avoid. 5287 
So I took your advice 5229 
Ok, let me know how it goes. 5229 
The ULF amp Itch. 5215 
Here is an update for the old thread.... 2836 
Good highs 2836 
Marchand 1893 
What truly are you tryin to accomplish? 1893 
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