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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. 5789 
A mono LF channel – I do not like it. 5785 
LF Results 5785 
The size maters 5784 
Response Curve 5784 
ULF placement and power 5784 
Wishful thinking and the Maelstrom-21 5784 
I will need a direct radiator under the bottom… 5784 
ULF experience: Drivers & power considerations cont'd 5783 
To experiment during the New England winter 5783 
Pitching pitch 5783 
There are many key points…. 5783 
A first true bass test 5767 
Actually…. 5767 
Best place lost? 5762 
Best location for bass, where art thou? 5762 
What to expect from ULF channel? 5746 
OK, it is something. 5745 
The new ULF scenario experiments. 5738 
Time coherence of ULF - my experience 5738 
Placement of ULF #2 5738 
Why I like the like the location #1 5738 
I need to find another ULF solution. 5730 
Ceiling subs 5729 
The infinite baffle shall be a very good solution. 5729 
This morning I woke up horny 5729 
Dsp 5729 
Parametric filters 5728 
SMS 1, Act II 5728 
I think I have found the problem with my ULF 5728 
SMS distortion issue? 5728 
At 30Hz of high order there are not truly tone” of “sound” 5728 
DCX output stage mods 5728 
Very small minority of the folks… 5728 
Exactly zero I suspect. . . 5728 
DSP vs. Music vs. HT 5728 
10" array; how low? & SMS-1 distortion 5728 
Interesting: 10” vs. 15” 5728 
Multiples of the Same Rising Response Curve? 5728 
The crisis of perception. 5727 
Dynamic range of ULF, tsunami and something else. 5726 
The Circle Unbroken 5726 
I wonder… is it PP2000? 5710 
The ULF and PurePower 2000 5701 
ULF Channel and LP playback. 5644 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5642 
I do not have an opinion yet. 5642 
Imponderabilis Neurosis 5642 
Bass non-pathologic hallucination… 5642 
A new paradigm for ULF? 5642 
…a number of logical flaws… 5642 
MAD HATTER 5641 
Thinking about my lower bass 5621 
Has Schrödinger's cat moved in unnoticed? 5621 
Wrong. 5621 
Groove Echo 5621 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5620 
Listening help with ULF stimulator 5620 
The ULF debate: time-alignment 5618 
Trying to address the dilemma with lowest bass. 5617 
Rotary woofer for ULF? 5617 
I do not need a Rotary woofer, I need to be less Moron. 5617 
*** 5617 
Congrats 5616 
Getting some maturity with ULF 5615 
About ULF attenuation. 5614 
How is it implemented? 5614 
My implementation of ULF channel. 5614 
Further thoughts about ULF channel. 5613 
ULF 5613 
I would agree but… 5613 
The problem that that I see with my ULF 5613 
Loudspeaker Proximity Coupling in Midbass & ULF 5613 
Great rotary idea! 5613 
Brilliant analyses! 5613 
Going down with bass 5611 
Under FS 5611 
Ideal ULF/Midbass integration 5611 
My super smart room! 5611 
Erratum ( or errata if you insist) 5611 
The issue is a complex one and should not be addressed generically ... 5611 
Cost benefit analysis of midbass horns v/s compromised ULF 5611 
There is no cost-benefit analysis for this thing. 5611 
I will experiment. 5611 
Sometimes experiment is not just experiment. 5611 
One Bass Horn or Two – for Oxric 5610 
My ways to mimic Reality. 5610 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5610 
"the purpose of playing, whose end both at the first and now..." 5610 
No manuals for those things…. 5610 
More about Rotary ULF idea. 5605 
Phoenix Gold Cyclone 5605 
Passing the waves…. as usual.... 5601 
Drive ULF Amp from Midbass Amp Output 5600 
There is “something”… 5600 
I do not know what I deal with. 5599 
I want my ULF amp back. 5588 
ULF emergency: Big & nasty solutions 5587 
No-amplification time 5587 
Listening audio without ULF. 5586 
Ok, I got the bass amp… 5586 
How much power do I need for my ULF. 5576 
A True ULF - what an amassing tool!!! 5574 
Put Marchand Crossover into the game. 5570 
I begin to like my active crossover. 5558 
Line-level passive vs. active ULF filter 5556 
Hm, there is no way to escape the 4th order. 5556 
Phase butterfly effect. 5555 
Back to DSP? 5555 
What I am trying to accomplish. 5555 
The art of ULF volume adjustment. 5554 
Sitting on a fence with ULF 5552 
The overly-swallowable bass. 5545 
To deLamminate my ULF channel. 5544 
What a beautiful result!!! 5543 
Pipe Organ with 128' register in Augsburg, Germany 5537 
An absolute must for ULF channel. 5520 
The compartmentalized bass 5397 
Paralleled SET bass 5393 
A new concept of ULF channel. 5385 
Infinite baffle 5385 
A 4th order bandpass vibrator? 5385 
ULF idea, possibly stupid. 5384 
IB vs Horn 5384 
A Distributed Infinite Baffle? 5383 
"Tuning" the "IB" 5383 
Flip 90 degrees 5383 
Little bump and the elephant solutions 5383 
How to do THAT? 5382 
ULF from coffee table 5382 
The through-hole tapped horn. 5382 
25 hz at 6db? 5382 
ULF from the SledgeHammer 5382 
Why not really use the basement 5382 
Never say never 5382 
How good ULF needs to be? 5371 
How good the user needs to be? 5371 
Maybe . . . 5371 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5371 
Narrow [Band] Tuning (DSP?) 5371 
ULF-only Sound 5331 
An easy ULF solution for someone. 5323 
Red Grills 5323 
It is exactly what I would like to avoid. 5322 
So I took your advice 5264 
Ok, let me know how it goes. 5264 
The ULF amp Itch. 5250 
Here is an update for the old thread.... 2871 
Good highs 2871 
Marchand 1928 
What truly are you tryin to accomplish? 1928 
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