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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. 5824 
A mono LF channel – I do not like it. 5820 
LF Results 5820 
The size maters 5819 
Response Curve 5819 
ULF placement and power 5819 
Wishful thinking and the Maelstrom-21 5819 
I will need a direct radiator under the bottom… 5819 
ULF experience: Drivers & power considerations cont'd 5818 
To experiment during the New England winter 5818 
Pitching pitch 5818 
There are many key points…. 5818 
A first true bass test 5802 
Actually…. 5802 
Best place lost? 5797 
Best location for bass, where art thou? 5797 
What to expect from ULF channel? 5781 
OK, it is something. 5780 
The new ULF scenario experiments. 5773 
Time coherence of ULF - my experience 5773 
Placement of ULF #2 5773 
Why I like the like the location #1 5773 
I need to find another ULF solution. 5765 
Ceiling subs 5764 
The infinite baffle shall be a very good solution. 5764 
This morning I woke up horny 5764 
Dsp 5764 
Parametric filters 5763 
SMS 1, Act II 5763 
I think I have found the problem with my ULF 5763 
SMS distortion issue? 5763 
At 30Hz of high order there are not truly tone” of “sound” 5763 
DCX output stage mods 5763 
Very small minority of the folks… 5763 
Exactly zero I suspect. . . 5763 
DSP vs. Music vs. HT 5763 
10" array; how low? & SMS-1 distortion 5763 
Interesting: 10” vs. 15” 5763 
Multiples of the Same Rising Response Curve? 5763 
The crisis of perception. 5762 
Dynamic range of ULF, tsunami and something else. 5761 
The Circle Unbroken 5761 
I wonder… is it PP2000? 5745 
The ULF and PurePower 2000 5736 
ULF Channel and LP playback. 5679 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5677 
I do not have an opinion yet. 5677 
Imponderabilis Neurosis 5677 
Bass non-pathologic hallucination… 5677 
A new paradigm for ULF? 5677 
…a number of logical flaws… 5677 
MAD HATTER 5676 
Thinking about my lower bass 5656 
Has Schrödinger's cat moved in unnoticed? 5656 
Wrong. 5656 
Groove Echo 5656 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5655 
Listening help with ULF stimulator 5655 
The ULF debate: time-alignment 5653 
Trying to address the dilemma with lowest bass. 5652 
Rotary woofer for ULF? 5652 
I do not need a Rotary woofer, I need to be less Moron. 5652 
*** 5652 
Congrats 5651 
Getting some maturity with ULF 5650 
About ULF attenuation. 5649 
How is it implemented? 5649 
My implementation of ULF channel. 5649 
Further thoughts about ULF channel. 5648 
ULF 5648 
I would agree but… 5648 
The problem that that I see with my ULF 5648 
Loudspeaker Proximity Coupling in Midbass & ULF 5648 
Great rotary idea! 5648 
Brilliant analyses! 5648 
Going down with bass 5646 
Under FS 5646 
Ideal ULF/Midbass integration 5646 
My super smart room! 5646 
Erratum ( or errata if you insist) 5646 
The issue is a complex one and should not be addressed generically ... 5646 
Cost benefit analysis of midbass horns v/s compromised ULF 5646 
There is no cost-benefit analysis for this thing. 5646 
I will experiment. 5646 
Sometimes experiment is not just experiment. 5646 
One Bass Horn or Two – for Oxric 5645 
My ways to mimic Reality. 5645 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5645 
"the purpose of playing, whose end both at the first and now..." 5645 
No manuals for those things…. 5645 
More about Rotary ULF idea. 5640 
Phoenix Gold Cyclone 5640 
Passing the waves…. as usual.... 5636 
Drive ULF Amp from Midbass Amp Output 5635 
There is “something”… 5635 
I do not know what I deal with. 5634 
I want my ULF amp back. 5623 
ULF emergency: Big & nasty solutions 5622 
No-amplification time 5622 
Listening audio without ULF. 5621 
Ok, I got the bass amp… 5621 
How much power do I need for my ULF. 5611 
A True ULF - what an amassing tool!!! 5609 
Put Marchand Crossover into the game. 5605 
I begin to like my active crossover. 5593 
Line-level passive vs. active ULF filter 5591 
Hm, there is no way to escape the 4th order. 5591 
Phase butterfly effect. 5590 
Back to DSP? 5590 
What I am trying to accomplish. 5590 
The art of ULF volume adjustment. 5589 
Sitting on a fence with ULF 5587 
The overly-swallowable bass. 5580 
To deLamminate my ULF channel. 5579 
What a beautiful result!!! 5578 
Pipe Organ with 128' register in Augsburg, Germany 5572 
An absolute must for ULF channel. 5555 
The compartmentalized bass 5432 
Paralleled SET bass 5428 
A new concept of ULF channel. 5420 
Infinite baffle 5420 
A 4th order bandpass vibrator? 5420 
ULF idea, possibly stupid. 5419 
IB vs Horn 5419 
A Distributed Infinite Baffle? 5418 
"Tuning" the "IB" 5418 
Flip 90 degrees 5418 
Little bump and the elephant solutions 5418 
How to do THAT? 5417 
ULF from coffee table 5417 
The through-hole tapped horn. 5417 
25 hz at 6db? 5417 
ULF from the SledgeHammer 5417 
Why not really use the basement 5417 
Never say never 5417 
How good ULF needs to be? 5406 
How good the user needs to be? 5406 
Maybe . . . 5406 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5406 
Narrow [Band] Tuning (DSP?) 5406 
ULF-only Sound 5366 
An easy ULF solution for someone. 5358 
Red Grills 5358 
It is exactly what I would like to avoid. 5357 
So I took your advice 5299 
Ok, let me know how it goes. 5299 
The ULF amp Itch. 5285 
Here is an update for the old thread.... 2906 
Good highs 2906 
Marchand 1963 
What truly are you tryin to accomplish? 1963 
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