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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. 5787 
A mono LF channel – I do not like it. 5783 
LF Results 5783 
The size maters 5782 
Response Curve 5782 
ULF placement and power 5782 
Wishful thinking and the Maelstrom-21 5782 
I will need a direct radiator under the bottom… 5782 
ULF experience: Drivers & power considerations cont'd 5781 
To experiment during the New England winter 5781 
Pitching pitch 5781 
There are many key points…. 5781 
A first true bass test 5765 
Actually…. 5765 
Best place lost? 5760 
Best location for bass, where art thou? 5760 
What to expect from ULF channel? 5744 
OK, it is something. 5743 
The new ULF scenario experiments. 5736 
Time coherence of ULF - my experience 5736 
Placement of ULF #2 5736 
Why I like the like the location #1 5736 
I need to find another ULF solution. 5728 
Ceiling subs 5727 
The infinite baffle shall be a very good solution. 5727 
This morning I woke up horny 5727 
Dsp 5727 
Parametric filters 5726 
SMS 1, Act II 5726 
I think I have found the problem with my ULF 5726 
SMS distortion issue? 5726 
At 30Hz of high order there are not truly tone” of “sound” 5726 
DCX output stage mods 5726 
Very small minority of the folks… 5726 
Exactly zero I suspect. . . 5726 
DSP vs. Music vs. HT 5726 
10" array; how low? & SMS-1 distortion 5726 
Interesting: 10” vs. 15” 5726 
Multiples of the Same Rising Response Curve? 5726 
The crisis of perception. 5725 
Dynamic range of ULF, tsunami and something else. 5724 
The Circle Unbroken 5724 
I wonder… is it PP2000? 5708 
The ULF and PurePower 2000 5699 
ULF Channel and LP playback. 5642 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5640 
I do not have an opinion yet. 5640 
Imponderabilis Neurosis 5640 
Bass non-pathologic hallucination… 5640 
A new paradigm for ULF? 5640 
…a number of logical flaws… 5640 
MAD HATTER 5639 
Thinking about my lower bass 5619 
Has Schrödinger's cat moved in unnoticed? 5619 
Wrong. 5619 
Groove Echo 5619 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5618 
Listening help with ULF stimulator 5618 
The ULF debate: time-alignment 5616 
Trying to address the dilemma with lowest bass. 5615 
Rotary woofer for ULF? 5615 
I do not need a Rotary woofer, I need to be less Moron. 5615 
*** 5615 
Congrats 5614 
Getting some maturity with ULF 5613 
About ULF attenuation. 5612 
How is it implemented? 5612 
My implementation of ULF channel. 5612 
Further thoughts about ULF channel. 5611 
ULF 5611 
I would agree but… 5611 
The problem that that I see with my ULF 5611 
Loudspeaker Proximity Coupling in Midbass & ULF 5611 
Great rotary idea! 5611 
Brilliant analyses! 5611 
Going down with bass 5609 
Under FS 5609 
Ideal ULF/Midbass integration 5609 
My super smart room! 5609 
Erratum ( or errata if you insist) 5609 
The issue is a complex one and should not be addressed generically ... 5609 
Cost benefit analysis of midbass horns v/s compromised ULF 5609 
There is no cost-benefit analysis for this thing. 5609 
I will experiment. 5609 
Sometimes experiment is not just experiment. 5609 
One Bass Horn or Two – for Oxric 5608 
My ways to mimic Reality. 5608 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5608 
"the purpose of playing, whose end both at the first and now..." 5608 
No manuals for those things…. 5608 
More about Rotary ULF idea. 5603 
Phoenix Gold Cyclone 5603 
Passing the waves…. as usual.... 5599 
Drive ULF Amp from Midbass Amp Output 5598 
There is “something”… 5598 
I do not know what I deal with. 5597 
I want my ULF amp back. 5586 
ULF emergency: Big & nasty solutions 5585 
No-amplification time 5585 
Listening audio without ULF. 5584 
Ok, I got the bass amp… 5584 
How much power do I need for my ULF. 5574 
A True ULF - what an amassing tool!!! 5572 
Put Marchand Crossover into the game. 5568 
I begin to like my active crossover. 5556 
Line-level passive vs. active ULF filter 5554 
Hm, there is no way to escape the 4th order. 5554 
Phase butterfly effect. 5553 
Back to DSP? 5553 
What I am trying to accomplish. 5553 
The art of ULF volume adjustment. 5552 
Sitting on a fence with ULF 5550 
The overly-swallowable bass. 5543 
To deLamminate my ULF channel. 5542 
What a beautiful result!!! 5541 
Pipe Organ with 128' register in Augsburg, Germany 5535 
An absolute must for ULF channel. 5518 
The compartmentalized bass 5395 
Paralleled SET bass 5391 
A new concept of ULF channel. 5383 
Infinite baffle 5383 
A 4th order bandpass vibrator? 5383 
ULF idea, possibly stupid. 5382 
IB vs Horn 5382 
A Distributed Infinite Baffle? 5381 
"Tuning" the "IB" 5381 
Flip 90 degrees 5381 
Little bump and the elephant solutions 5381 
How to do THAT? 5380 
ULF from coffee table 5380 
The through-hole tapped horn. 5380 
25 hz at 6db? 5380 
ULF from the SledgeHammer 5380 
Why not really use the basement 5380 
Never say never 5380 
How good ULF needs to be? 5369 
How good the user needs to be? 5369 
Maybe . . . 5369 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5369 
Narrow [Band] Tuning (DSP?) 5369 
ULF-only Sound 5329 
An easy ULF solution for someone. 5321 
Red Grills 5321 
It is exactly what I would like to avoid. 5320 
So I took your advice 5262 
Ok, let me know how it goes. 5262 
The ULF amp Itch. 5248 
Here is an update for the old thread.... 2869 
Good highs 2869 
Marchand 1926 
What truly are you tryin to accomplish? 1926 
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