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Site News: 26 Aug 2026

Romy the Cat has found another room. I’ve started a new fiction project under my name, Roman Bessnow. The new work is at MutationsBook.com
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Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Macondo’s lowest channel. 5839 
A mono LF channel – I do not like it. 5835 
LF Results 5835 
The size maters 5834 
Response Curve 5834 
ULF placement and power 5834 
Wishful thinking and the Maelstrom-21 5834 
I will need a direct radiator under the bottom… 5834 
ULF experience: Drivers & power considerations cont'd 5833 
To experiment during the New England winter 5833 
Pitching pitch 5833 
There are many key points…. 5833 
A first true bass test 5817 
Actually…. 5817 
Best place lost? 5812 
Best location for bass, where art thou? 5812 
What to expect from ULF channel? 5796 
OK, it is something. 5795 
The new ULF scenario experiments. 5788 
Time coherence of ULF - my experience 5788 
Placement of ULF #2 5788 
Why I like the like the location #1 5788 
I need to find another ULF solution. 5780 
Ceiling subs 5779 
The infinite baffle shall be a very good solution. 5779 
This morning I woke up horny 5779 
Dsp 5779 
Parametric filters 5778 
SMS 1, Act II 5778 
I think I have found the problem with my ULF 5778 
SMS distortion issue? 5778 
At 30Hz of high order there are not truly tone” of “sound” 5778 
DCX output stage mods 5778 
Very small minority of the folks… 5778 
Exactly zero I suspect. . . 5778 
DSP vs. Music vs. HT 5778 
10" array; how low? & SMS-1 distortion 5778 
Interesting: 10” vs. 15” 5778 
Multiples of the Same Rising Response Curve? 5778 
The crisis of perception. 5777 
Dynamic range of ULF, tsunami and something else. 5776 
The Circle Unbroken 5776 
I wonder… is it PP2000? 5760 
The ULF and PurePower 2000 5751 
ULF Channel and LP playback. 5694 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5692 
I do not have an opinion yet. 5692 
Imponderabilis Neurosis 5692 
Bass non-pathologic hallucination… 5692 
A new paradigm for ULF? 5692 
…a number of logical flaws… 5692 
MAD HATTER 5691 
Thinking about my lower bass 5671 
Has Schrödinger's cat moved in unnoticed? 5671 
Wrong. 5671 
Groove Echo 5671 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5670 
Listening help with ULF stimulator 5670 
The ULF debate: time-alignment 5668 
Trying to address the dilemma with lowest bass. 5667 
Rotary woofer for ULF? 5667 
I do not need a Rotary woofer, I need to be less Moron. 5667 
*** 5667 
Congrats 5666 
Getting some maturity with ULF 5665 
About ULF attenuation. 5664 
How is it implemented? 5664 
My implementation of ULF channel. 5664 
Further thoughts about ULF channel. 5663 
ULF 5663 
I would agree but… 5663 
The problem that that I see with my ULF 5663 
Loudspeaker Proximity Coupling in Midbass & ULF 5663 
Great rotary idea! 5663 
Brilliant analyses! 5663 
Going down with bass 5661 
Under FS 5661 
Ideal ULF/Midbass integration 5661 
My super smart room! 5661 
Erratum ( or errata if you insist) 5661 
The issue is a complex one and should not be addressed generically ... 5661 
Cost benefit analysis of midbass horns v/s compromised ULF 5661 
There is no cost-benefit analysis for this thing. 5661 
I will experiment. 5661 
Sometimes experiment is not just experiment. 5661 
One Bass Horn or Two – for Oxric 5660 
My ways to mimic Reality. 5660 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5660 
"the purpose of playing, whose end both at the first and now..." 5660 
No manuals for those things…. 5660 
More about Rotary ULF idea. 5655 
Phoenix Gold Cyclone 5655 
Passing the waves…. as usual.... 5651 
Drive ULF Amp from Midbass Amp Output 5650 
There is “something”… 5650 
I do not know what I deal with. 5649 
I want my ULF amp back. 5638 
ULF emergency: Big & nasty solutions 5637 
No-amplification time 5637 
Listening audio without ULF. 5636 
Ok, I got the bass amp… 5636 
How much power do I need for my ULF. 5626 
A True ULF - what an amassing tool!!! 5624 
Put Marchand Crossover into the game. 5620 
I begin to like my active crossover. 5608 
Line-level passive vs. active ULF filter 5606 
Hm, there is no way to escape the 4th order. 5606 
Phase butterfly effect. 5605 
Back to DSP? 5605 
What I am trying to accomplish. 5605 
The art of ULF volume adjustment. 5604 
Sitting on a fence with ULF 5602 
The overly-swallowable bass. 5595 
To deLamminate my ULF channel. 5594 
What a beautiful result!!! 5593 
Pipe Organ with 128' register in Augsburg, Germany 5587 
An absolute must for ULF channel. 5570 
The compartmentalized bass 5447 
Paralleled SET bass 5443 
A new concept of ULF channel. 5435 
Infinite baffle 5435 
A 4th order bandpass vibrator? 5435 
ULF idea, possibly stupid. 5434 
IB vs Horn 5434 
A Distributed Infinite Baffle? 5433 
"Tuning" the "IB" 5433 
Flip 90 degrees 5433 
Little bump and the elephant solutions 5433 
How to do THAT? 5432 
ULF from coffee table 5432 
The through-hole tapped horn. 5432 
25 hz at 6db? 5432 
ULF from the SledgeHammer 5432 
Why not really use the basement 5432 
Never say never 5432 
How good ULF needs to be? 5421 
How good the user needs to be? 5421 
Maybe . . . 5421 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5421 
Narrow [Band] Tuning (DSP?) 5421 
ULF-only Sound 5381 
An easy ULF solution for someone. 5373 
Red Grills 5373 
It is exactly what I would like to avoid. 5372 
So I took your advice 5314 
Ok, let me know how it goes. 5314 
The ULF amp Itch. 5300 
Here is an update for the old thread.... 2921 
Good highs 2921 
Marchand 1978 
What truly are you tryin to accomplish? 1978 
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