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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. 5811 
A mono LF channel – I do not like it. 5807 
LF Results 5807 
The size maters 5806 
Response Curve 5806 
ULF placement and power 5806 
Wishful thinking and the Maelstrom-21 5806 
I will need a direct radiator under the bottom… 5806 
ULF experience: Drivers & power considerations cont'd 5805 
To experiment during the New England winter 5805 
Pitching pitch 5805 
There are many key points…. 5805 
A first true bass test 5789 
Actually…. 5789 
Best place lost? 5784 
Best location for bass, where art thou? 5784 
What to expect from ULF channel? 5768 
OK, it is something. 5767 
The new ULF scenario experiments. 5760 
Time coherence of ULF - my experience 5760 
Placement of ULF #2 5760 
Why I like the like the location #1 5760 
I need to find another ULF solution. 5752 
Ceiling subs 5751 
The infinite baffle shall be a very good solution. 5751 
This morning I woke up horny 5751 
Dsp 5751 
Parametric filters 5750 
SMS 1, Act II 5750 
I think I have found the problem with my ULF 5750 
SMS distortion issue? 5750 
At 30Hz of high order there are not truly tone” of “sound” 5750 
DCX output stage mods 5750 
Very small minority of the folks… 5750 
Exactly zero I suspect. . . 5750 
DSP vs. Music vs. HT 5750 
10" array; how low? & SMS-1 distortion 5750 
Interesting: 10” vs. 15” 5750 
Multiples of the Same Rising Response Curve? 5750 
The crisis of perception. 5749 
Dynamic range of ULF, tsunami and something else. 5748 
The Circle Unbroken 5748 
I wonder… is it PP2000? 5732 
The ULF and PurePower 2000 5723 
ULF Channel and LP playback. 5666 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5664 
I do not have an opinion yet. 5664 
Imponderabilis Neurosis 5664 
Bass non-pathologic hallucination… 5664 
A new paradigm for ULF? 5664 
…a number of logical flaws… 5664 
MAD HATTER 5663 
Thinking about my lower bass 5643 
Has Schrödinger's cat moved in unnoticed? 5643 
Wrong. 5643 
Groove Echo 5643 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5642 
Listening help with ULF stimulator 5642 
The ULF debate: time-alignment 5640 
Trying to address the dilemma with lowest bass. 5639 
Rotary woofer for ULF? 5639 
I do not need a Rotary woofer, I need to be less Moron. 5639 
*** 5639 
Congrats 5638 
Getting some maturity with ULF 5637 
About ULF attenuation. 5636 
How is it implemented? 5636 
My implementation of ULF channel. 5636 
Further thoughts about ULF channel. 5635 
ULF 5635 
I would agree but… 5635 
The problem that that I see with my ULF 5635 
Loudspeaker Proximity Coupling in Midbass & ULF 5635 
Great rotary idea! 5635 
Brilliant analyses! 5635 
Going down with bass 5633 
Under FS 5633 
Ideal ULF/Midbass integration 5633 
My super smart room! 5633 
Erratum ( or errata if you insist) 5633 
The issue is a complex one and should not be addressed generically ... 5633 
Cost benefit analysis of midbass horns v/s compromised ULF 5633 
There is no cost-benefit analysis for this thing. 5633 
I will experiment. 5633 
Sometimes experiment is not just experiment. 5633 
One Bass Horn or Two – for Oxric 5632 
My ways to mimic Reality. 5632 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5632 
"the purpose of playing, whose end both at the first and now..." 5632 
No manuals for those things…. 5632 
More about Rotary ULF idea. 5627 
Phoenix Gold Cyclone 5627 
Passing the waves…. as usual.... 5623 
Drive ULF Amp from Midbass Amp Output 5622 
There is “something”… 5622 
I do not know what I deal with. 5621 
I want my ULF amp back. 5610 
ULF emergency: Big & nasty solutions 5609 
No-amplification time 5609 
Listening audio without ULF. 5608 
Ok, I got the bass amp… 5608 
How much power do I need for my ULF. 5598 
A True ULF - what an amassing tool!!! 5596 
Put Marchand Crossover into the game. 5592 
I begin to like my active crossover. 5580 
Line-level passive vs. active ULF filter 5578 
Hm, there is no way to escape the 4th order. 5578 
Phase butterfly effect. 5577 
Back to DSP? 5577 
What I am trying to accomplish. 5577 
The art of ULF volume adjustment. 5576 
Sitting on a fence with ULF 5574 
The overly-swallowable bass. 5567 
To deLamminate my ULF channel. 5566 
What a beautiful result!!! 5565 
Pipe Organ with 128' register in Augsburg, Germany 5559 
An absolute must for ULF channel. 5542 
The compartmentalized bass 5419 
Paralleled SET bass 5415 
A new concept of ULF channel. 5407 
Infinite baffle 5407 
A 4th order bandpass vibrator? 5407 
ULF idea, possibly stupid. 5406 
IB vs Horn 5406 
A Distributed Infinite Baffle? 5405 
"Tuning" the "IB" 5405 
Flip 90 degrees 5405 
Little bump and the elephant solutions 5405 
How to do THAT? 5404 
ULF from coffee table 5404 
The through-hole tapped horn. 5404 
25 hz at 6db? 5404 
ULF from the SledgeHammer 5404 
Why not really use the basement 5404 
Never say never 5404 
How good ULF needs to be? 5393 
How good the user needs to be? 5393 
Maybe . . . 5393 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5393 
Narrow [Band] Tuning (DSP?) 5393 
ULF-only Sound 5353 
An easy ULF solution for someone. 5345 
Red Grills 5345 
It is exactly what I would like to avoid. 5344 
So I took your advice 5286 
Ok, let me know how it goes. 5286 
The ULF amp Itch. 5272 
Here is an update for the old thread.... 2893 
Good highs 2893 
Marchand 1950 
What truly are you tryin to accomplish? 1950 
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