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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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Romy the Cat's personal site dedicated to advanced audio and evolved music reproduction techniques
Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Macondo’s lowest channel. 5903 
A mono LF channel – I do not like it. 5899 
LF Results 5899 
The size maters 5898 
Response Curve 5898 
ULF placement and power 5898 
Wishful thinking and the Maelstrom-21 5898 
I will need a direct radiator under the bottom… 5898 
ULF experience: Drivers & power considerations cont'd 5897 
To experiment during the New England winter 5897 
Pitching pitch 5897 
There are many key points…. 5897 
A first true bass test 5881 
Actually…. 5881 
Best place lost? 5876 
Best location for bass, where art thou? 5876 
What to expect from ULF channel? 5860 
OK, it is something. 5859 
The new ULF scenario experiments. 5852 
Time coherence of ULF - my experience 5852 
Placement of ULF #2 5852 
Why I like the like the location #1 5852 
I need to find another ULF solution. 5844 
Ceiling subs 5843 
The infinite baffle shall be a very good solution. 5843 
This morning I woke up horny 5843 
Dsp 5843 
Parametric filters 5842 
SMS 1, Act II 5842 
I think I have found the problem with my ULF 5842 
SMS distortion issue? 5842 
At 30Hz of high order there are not truly tone” of “sound” 5842 
DCX output stage mods 5842 
Very small minority of the folks… 5842 
Exactly zero I suspect. . . 5842 
DSP vs. Music vs. HT 5842 
10" array; how low? & SMS-1 distortion 5842 
Interesting: 10” vs. 15” 5842 
Multiples of the Same Rising Response Curve? 5842 
The crisis of perception. 5841 
Dynamic range of ULF, tsunami and something else. 5840 
The Circle Unbroken 5840 
I wonder… is it PP2000? 5824 
The ULF and PurePower 2000 5815 
ULF Channel and LP playback. 5758 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5756 
I do not have an opinion yet. 5756 
Imponderabilis Neurosis 5756 
Bass non-pathologic hallucination… 5756 
A new paradigm for ULF? 5756 
…a number of logical flaws… 5756 
MAD HATTER 5755 
Thinking about my lower bass 5735 
Has Schrödinger's cat moved in unnoticed? 5735 
Wrong. 5735 
Groove Echo 5735 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5734 
Listening help with ULF stimulator 5734 
The ULF debate: time-alignment 5732 
Trying to address the dilemma with lowest bass. 5731 
Rotary woofer for ULF? 5731 
I do not need a Rotary woofer, I need to be less Moron. 5731 
*** 5731 
Congrats 5730 
Getting some maturity with ULF 5729 
About ULF attenuation. 5728 
How is it implemented? 5728 
My implementation of ULF channel. 5728 
Further thoughts about ULF channel. 5727 
ULF 5727 
I would agree but… 5727 
The problem that that I see with my ULF 5727 
Loudspeaker Proximity Coupling in Midbass & ULF 5727 
Great rotary idea! 5727 
Brilliant analyses! 5727 
Going down with bass 5725 
Under FS 5725 
Ideal ULF/Midbass integration 5725 
My super smart room! 5725 
Erratum ( or errata if you insist) 5725 
The issue is a complex one and should not be addressed generically ... 5725 
Cost benefit analysis of midbass horns v/s compromised ULF 5725 
There is no cost-benefit analysis for this thing. 5725 
I will experiment. 5725 
Sometimes experiment is not just experiment. 5725 
One Bass Horn or Two – for Oxric 5724 
My ways to mimic Reality. 5724 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5724 
"the purpose of playing, whose end both at the first and now..." 5724 
No manuals for those things…. 5724 
More about Rotary ULF idea. 5719 
Phoenix Gold Cyclone 5719 
Passing the waves…. as usual.... 5715 
Drive ULF Amp from Midbass Amp Output 5714 
There is “something”… 5714 
I do not know what I deal with. 5713 
I want my ULF amp back. 5702 
ULF emergency: Big & nasty solutions 5701 
No-amplification time 5701 
Listening audio without ULF. 5700 
Ok, I got the bass amp… 5700 
How much power do I need for my ULF. 5690 
A True ULF - what an amassing tool!!! 5688 
Put Marchand Crossover into the game. 5684 
I begin to like my active crossover. 5672 
Line-level passive vs. active ULF filter 5670 
Hm, there is no way to escape the 4th order. 5670 
Phase butterfly effect. 5669 
Back to DSP? 5669 
What I am trying to accomplish. 5669 
The art of ULF volume adjustment. 5668 
Sitting on a fence with ULF 5666 
The overly-swallowable bass. 5659 
To deLamminate my ULF channel. 5658 
What a beautiful result!!! 5657 
Pipe Organ with 128' register in Augsburg, Germany 5651 
An absolute must for ULF channel. 5634 
The compartmentalized bass 5511 
Paralleled SET bass 5507 
A new concept of ULF channel. 5499 
Infinite baffle 5499 
A 4th order bandpass vibrator? 5499 
ULF idea, possibly stupid. 5498 
IB vs Horn 5498 
A Distributed Infinite Baffle? 5497 
"Tuning" the "IB" 5497 
Flip 90 degrees 5497 
Little bump and the elephant solutions 5497 
How to do THAT? 5496 
ULF from coffee table 5496 
The through-hole tapped horn. 5496 
25 hz at 6db? 5496 
ULF from the SledgeHammer 5496 
Why not really use the basement 5496 
Never say never 5496 
How good ULF needs to be? 5485 
How good the user needs to be? 5485 
Maybe . . . 5485 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5485 
Narrow [Band] Tuning (DSP?) 5485 
ULF-only Sound 5445 
An easy ULF solution for someone. 5437 
Red Grills 5437 
It is exactly what I would like to avoid. 5436 
So I took your advice 5378 
Ok, let me know how it goes. 5378 
The ULF amp Itch. 5364 
Here is an update for the old thread.... 2985 
Good highs 2985 
Marchand 2042 
What truly are you tryin to accomplish? 2042 
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