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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. 5813 
A mono LF channel – I do not like it. 5809 
LF Results 5809 
The size maters 5808 
Response Curve 5808 
ULF placement and power 5808 
Wishful thinking and the Maelstrom-21 5808 
I will need a direct radiator under the bottom… 5808 
ULF experience: Drivers & power considerations cont'd 5807 
To experiment during the New England winter 5807 
Pitching pitch 5807 
There are many key points…. 5807 
A first true bass test 5791 
Actually…. 5791 
Best place lost? 5786 
Best location for bass, where art thou? 5786 
What to expect from ULF channel? 5770 
OK, it is something. 5769 
The new ULF scenario experiments. 5762 
Time coherence of ULF - my experience 5762 
Placement of ULF #2 5762 
Why I like the like the location #1 5762 
I need to find another ULF solution. 5754 
Ceiling subs 5753 
The infinite baffle shall be a very good solution. 5753 
This morning I woke up horny 5753 
Dsp 5753 
Parametric filters 5752 
SMS 1, Act II 5752 
I think I have found the problem with my ULF 5752 
SMS distortion issue? 5752 
At 30Hz of high order there are not truly tone” of “sound” 5752 
DCX output stage mods 5752 
Very small minority of the folks… 5752 
Exactly zero I suspect. . . 5752 
DSP vs. Music vs. HT 5752 
10" array; how low? & SMS-1 distortion 5752 
Interesting: 10” vs. 15” 5752 
Multiples of the Same Rising Response Curve? 5752 
The crisis of perception. 5751 
Dynamic range of ULF, tsunami and something else. 5750 
The Circle Unbroken 5750 
I wonder… is it PP2000? 5734 
The ULF and PurePower 2000 5725 
ULF Channel and LP playback. 5668 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5666 
I do not have an opinion yet. 5666 
Imponderabilis Neurosis 5666 
Bass non-pathologic hallucination… 5666 
A new paradigm for ULF? 5666 
…a number of logical flaws… 5666 
MAD HATTER 5665 
Thinking about my lower bass 5645 
Has Schrödinger's cat moved in unnoticed? 5645 
Wrong. 5645 
Groove Echo 5645 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5644 
Listening help with ULF stimulator 5644 
The ULF debate: time-alignment 5642 
Trying to address the dilemma with lowest bass. 5641 
Rotary woofer for ULF? 5641 
I do not need a Rotary woofer, I need to be less Moron. 5641 
*** 5641 
Congrats 5640 
Getting some maturity with ULF 5639 
About ULF attenuation. 5638 
How is it implemented? 5638 
My implementation of ULF channel. 5638 
Further thoughts about ULF channel. 5637 
ULF 5637 
I would agree but… 5637 
The problem that that I see with my ULF 5637 
Loudspeaker Proximity Coupling in Midbass & ULF 5637 
Great rotary idea! 5637 
Brilliant analyses! 5637 
Going down with bass 5635 
Under FS 5635 
Ideal ULF/Midbass integration 5635 
My super smart room! 5635 
Erratum ( or errata if you insist) 5635 
The issue is a complex one and should not be addressed generically ... 5635 
Cost benefit analysis of midbass horns v/s compromised ULF 5635 
There is no cost-benefit analysis for this thing. 5635 
I will experiment. 5635 
Sometimes experiment is not just experiment. 5635 
One Bass Horn or Two – for Oxric 5634 
My ways to mimic Reality. 5634 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5634 
"the purpose of playing, whose end both at the first and now..." 5634 
No manuals for those things…. 5634 
More about Rotary ULF idea. 5629 
Phoenix Gold Cyclone 5629 
Passing the waves…. as usual.... 5625 
Drive ULF Amp from Midbass Amp Output 5624 
There is “something”… 5624 
I do not know what I deal with. 5623 
I want my ULF amp back. 5612 
ULF emergency: Big & nasty solutions 5611 
No-amplification time 5611 
Listening audio without ULF. 5610 
Ok, I got the bass amp… 5610 
How much power do I need for my ULF. 5600 
A True ULF - what an amassing tool!!! 5598 
Put Marchand Crossover into the game. 5594 
I begin to like my active crossover. 5582 
Line-level passive vs. active ULF filter 5580 
Hm, there is no way to escape the 4th order. 5580 
Phase butterfly effect. 5579 
Back to DSP? 5579 
What I am trying to accomplish. 5579 
The art of ULF volume adjustment. 5578 
Sitting on a fence with ULF 5576 
The overly-swallowable bass. 5569 
To deLamminate my ULF channel. 5568 
What a beautiful result!!! 5567 
Pipe Organ with 128' register in Augsburg, Germany 5561 
An absolute must for ULF channel. 5544 
The compartmentalized bass 5421 
Paralleled SET bass 5417 
A new concept of ULF channel. 5409 
Infinite baffle 5409 
A 4th order bandpass vibrator? 5409 
ULF idea, possibly stupid. 5408 
IB vs Horn 5408 
A Distributed Infinite Baffle? 5407 
"Tuning" the "IB" 5407 
Flip 90 degrees 5407 
Little bump and the elephant solutions 5407 
How to do THAT? 5406 
ULF from coffee table 5406 
The through-hole tapped horn. 5406 
25 hz at 6db? 5406 
ULF from the SledgeHammer 5406 
Why not really use the basement 5406 
Never say never 5406 
How good ULF needs to be? 5395 
How good the user needs to be? 5395 
Maybe . . . 5395 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5395 
Narrow [Band] Tuning (DSP?) 5395 
ULF-only Sound 5355 
An easy ULF solution for someone. 5347 
Red Grills 5347 
It is exactly what I would like to avoid. 5346 
So I took your advice 5288 
Ok, let me know how it goes. 5288 
The ULF amp Itch. 5274 
Here is an update for the old thread.... 2895 
Good highs 2895 
Marchand 1952 
What truly are you tryin to accomplish? 1952 
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