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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. 5799 
A mono LF channel – I do not like it. 5795 
LF Results 5795 
The size maters 5794 
Response Curve 5794 
ULF placement and power 5794 
Wishful thinking and the Maelstrom-21 5794 
I will need a direct radiator under the bottom… 5794 
ULF experience: Drivers & power considerations cont'd 5793 
To experiment during the New England winter 5793 
Pitching pitch 5793 
There are many key points…. 5793 
A first true bass test 5777 
Actually…. 5777 
Best place lost? 5772 
Best location for bass, where art thou? 5772 
What to expect from ULF channel? 5756 
OK, it is something. 5755 
The new ULF scenario experiments. 5748 
Time coherence of ULF - my experience 5748 
Placement of ULF #2 5748 
Why I like the like the location #1 5748 
I need to find another ULF solution. 5740 
Ceiling subs 5739 
The infinite baffle shall be a very good solution. 5739 
This morning I woke up horny 5739 
Dsp 5739 
Parametric filters 5738 
SMS 1, Act II 5738 
I think I have found the problem with my ULF 5738 
SMS distortion issue? 5738 
At 30Hz of high order there are not truly tone” of “sound” 5738 
DCX output stage mods 5738 
Very small minority of the folks… 5738 
Exactly zero I suspect. . . 5738 
DSP vs. Music vs. HT 5738 
10" array; how low? & SMS-1 distortion 5738 
Interesting: 10” vs. 15” 5738 
Multiples of the Same Rising Response Curve? 5738 
The crisis of perception. 5737 
Dynamic range of ULF, tsunami and something else. 5736 
The Circle Unbroken 5736 
I wonder… is it PP2000? 5720 
The ULF and PurePower 2000 5711 
ULF Channel and LP playback. 5654 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5652 
I do not have an opinion yet. 5652 
Imponderabilis Neurosis 5652 
Bass non-pathologic hallucination… 5652 
A new paradigm for ULF? 5652 
…a number of logical flaws… 5652 
MAD HATTER 5651 
Thinking about my lower bass 5631 
Has Schrödinger's cat moved in unnoticed? 5631 
Wrong. 5631 
Groove Echo 5631 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5630 
Listening help with ULF stimulator 5630 
The ULF debate: time-alignment 5628 
Trying to address the dilemma with lowest bass. 5627 
Rotary woofer for ULF? 5627 
I do not need a Rotary woofer, I need to be less Moron. 5627 
*** 5627 
Congrats 5626 
Getting some maturity with ULF 5625 
About ULF attenuation. 5624 
How is it implemented? 5624 
My implementation of ULF channel. 5624 
Further thoughts about ULF channel. 5623 
ULF 5623 
I would agree but… 5623 
The problem that that I see with my ULF 5623 
Loudspeaker Proximity Coupling in Midbass & ULF 5623 
Great rotary idea! 5623 
Brilliant analyses! 5623 
Going down with bass 5621 
Under FS 5621 
Ideal ULF/Midbass integration 5621 
My super smart room! 5621 
Erratum ( or errata if you insist) 5621 
The issue is a complex one and should not be addressed generically ... 5621 
Cost benefit analysis of midbass horns v/s compromised ULF 5621 
There is no cost-benefit analysis for this thing. 5621 
I will experiment. 5621 
Sometimes experiment is not just experiment. 5621 
One Bass Horn or Two – for Oxric 5620 
My ways to mimic Reality. 5620 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5620 
"the purpose of playing, whose end both at the first and now..." 5620 
No manuals for those things…. 5620 
More about Rotary ULF idea. 5615 
Phoenix Gold Cyclone 5615 
Passing the waves…. as usual.... 5611 
Drive ULF Amp from Midbass Amp Output 5610 
There is “something”… 5610 
I do not know what I deal with. 5609 
I want my ULF amp back. 5598 
ULF emergency: Big & nasty solutions 5597 
No-amplification time 5597 
Listening audio without ULF. 5596 
Ok, I got the bass amp… 5596 
How much power do I need for my ULF. 5586 
A True ULF - what an amassing tool!!! 5584 
Put Marchand Crossover into the game. 5580 
I begin to like my active crossover. 5568 
Line-level passive vs. active ULF filter 5566 
Hm, there is no way to escape the 4th order. 5566 
Phase butterfly effect. 5565 
Back to DSP? 5565 
What I am trying to accomplish. 5565 
The art of ULF volume adjustment. 5564 
Sitting on a fence with ULF 5562 
The overly-swallowable bass. 5555 
To deLamminate my ULF channel. 5554 
What a beautiful result!!! 5553 
Pipe Organ with 128' register in Augsburg, Germany 5547 
An absolute must for ULF channel. 5530 
The compartmentalized bass 5407 
Paralleled SET bass 5403 
A new concept of ULF channel. 5395 
Infinite baffle 5395 
A 4th order bandpass vibrator? 5395 
ULF idea, possibly stupid. 5394 
IB vs Horn 5394 
A Distributed Infinite Baffle? 5393 
"Tuning" the "IB" 5393 
Flip 90 degrees 5393 
Little bump and the elephant solutions 5393 
How to do THAT? 5392 
ULF from coffee table 5392 
The through-hole tapped horn. 5392 
25 hz at 6db? 5392 
ULF from the SledgeHammer 5392 
Why not really use the basement 5392 
Never say never 5392 
How good ULF needs to be? 5381 
How good the user needs to be? 5381 
Maybe . . . 5381 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5381 
Narrow [Band] Tuning (DSP?) 5381 
ULF-only Sound 5341 
An easy ULF solution for someone. 5333 
Red Grills 5333 
It is exactly what I would like to avoid. 5332 
So I took your advice 5274 
Ok, let me know how it goes. 5274 
The ULF amp Itch. 5260 
Here is an update for the old thread.... 2881 
Good highs 2881 
Marchand 1938 
What truly are you tryin to accomplish? 1938 
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