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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. 5815 
A mono LF channel – I do not like it. 5811 
LF Results 5811 
The size maters 5810 
Response Curve 5810 
ULF placement and power 5810 
Wishful thinking and the Maelstrom-21 5810 
I will need a direct radiator under the bottom… 5810 
ULF experience: Drivers & power considerations cont'd 5809 
To experiment during the New England winter 5809 
Pitching pitch 5809 
There are many key points…. 5809 
A first true bass test 5793 
Actually…. 5793 
Best place lost? 5788 
Best location for bass, where art thou? 5788 
What to expect from ULF channel? 5772 
OK, it is something. 5771 
The new ULF scenario experiments. 5764 
Time coherence of ULF - my experience 5764 
Placement of ULF #2 5764 
Why I like the like the location #1 5764 
I need to find another ULF solution. 5756 
Ceiling subs 5755 
The infinite baffle shall be a very good solution. 5755 
This morning I woke up horny 5755 
Dsp 5755 
Parametric filters 5754 
SMS 1, Act II 5754 
I think I have found the problem with my ULF 5754 
SMS distortion issue? 5754 
At 30Hz of high order there are not truly tone” of “sound” 5754 
DCX output stage mods 5754 
Very small minority of the folks… 5754 
Exactly zero I suspect. . . 5754 
DSP vs. Music vs. HT 5754 
10" array; how low? & SMS-1 distortion 5754 
Interesting: 10” vs. 15” 5754 
Multiples of the Same Rising Response Curve? 5754 
The crisis of perception. 5753 
Dynamic range of ULF, tsunami and something else. 5752 
The Circle Unbroken 5752 
I wonder… is it PP2000? 5736 
The ULF and PurePower 2000 5727 
ULF Channel and LP playback. 5670 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5668 
I do not have an opinion yet. 5668 
Imponderabilis Neurosis 5668 
Bass non-pathologic hallucination… 5668 
A new paradigm for ULF? 5668 
…a number of logical flaws… 5668 
MAD HATTER 5667 
Thinking about my lower bass 5647 
Has Schrödinger's cat moved in unnoticed? 5647 
Wrong. 5647 
Groove Echo 5647 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5646 
Listening help with ULF stimulator 5646 
The ULF debate: time-alignment 5644 
Trying to address the dilemma with lowest bass. 5643 
Rotary woofer for ULF? 5643 
I do not need a Rotary woofer, I need to be less Moron. 5643 
*** 5643 
Congrats 5642 
Getting some maturity with ULF 5641 
About ULF attenuation. 5640 
How is it implemented? 5640 
My implementation of ULF channel. 5640 
Further thoughts about ULF channel. 5639 
ULF 5639 
I would agree but… 5639 
The problem that that I see with my ULF 5639 
Loudspeaker Proximity Coupling in Midbass & ULF 5639 
Great rotary idea! 5639 
Brilliant analyses! 5639 
Going down with bass 5637 
Under FS 5637 
Ideal ULF/Midbass integration 5637 
My super smart room! 5637 
Erratum ( or errata if you insist) 5637 
The issue is a complex one and should not be addressed generically ... 5637 
Cost benefit analysis of midbass horns v/s compromised ULF 5637 
There is no cost-benefit analysis for this thing. 5637 
I will experiment. 5637 
Sometimes experiment is not just experiment. 5637 
One Bass Horn or Two – for Oxric 5636 
My ways to mimic Reality. 5636 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5636 
"the purpose of playing, whose end both at the first and now..." 5636 
No manuals for those things…. 5636 
More about Rotary ULF idea. 5631 
Phoenix Gold Cyclone 5631 
Passing the waves…. as usual.... 5627 
Drive ULF Amp from Midbass Amp Output 5626 
There is “something”… 5626 
I do not know what I deal with. 5625 
I want my ULF amp back. 5614 
ULF emergency: Big & nasty solutions 5613 
No-amplification time 5613 
Listening audio without ULF. 5612 
Ok, I got the bass amp… 5612 
How much power do I need for my ULF. 5602 
A True ULF - what an amassing tool!!! 5600 
Put Marchand Crossover into the game. 5596 
I begin to like my active crossover. 5584 
Line-level passive vs. active ULF filter 5582 
Hm, there is no way to escape the 4th order. 5582 
Phase butterfly effect. 5581 
Back to DSP? 5581 
What I am trying to accomplish. 5581 
The art of ULF volume adjustment. 5580 
Sitting on a fence with ULF 5578 
The overly-swallowable bass. 5571 
To deLamminate my ULF channel. 5570 
What a beautiful result!!! 5569 
Pipe Organ with 128' register in Augsburg, Germany 5563 
An absolute must for ULF channel. 5546 
The compartmentalized bass 5423 
Paralleled SET bass 5419 
A new concept of ULF channel. 5411 
Infinite baffle 5411 
A 4th order bandpass vibrator? 5411 
ULF idea, possibly stupid. 5410 
IB vs Horn 5410 
A Distributed Infinite Baffle? 5409 
"Tuning" the "IB" 5409 
Flip 90 degrees 5409 
Little bump and the elephant solutions 5409 
How to do THAT? 5408 
ULF from coffee table 5408 
The through-hole tapped horn. 5408 
25 hz at 6db? 5408 
ULF from the SledgeHammer 5408 
Why not really use the basement 5408 
Never say never 5408 
How good ULF needs to be? 5397 
How good the user needs to be? 5397 
Maybe . . . 5397 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5397 
Narrow [Band] Tuning (DSP?) 5397 
ULF-only Sound 5357 
An easy ULF solution for someone. 5349 
Red Grills 5349 
It is exactly what I would like to avoid. 5348 
So I took your advice 5290 
Ok, let me know how it goes. 5290 
The ULF amp Itch. 5276 
Here is an update for the old thread.... 2897 
Good highs 2897 
Marchand 1954 
What truly are you tryin to accomplish? 1954 
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