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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. 5809 
A mono LF channel – I do not like it. 5805 
LF Results 5805 
The size maters 5804 
Response Curve 5804 
ULF placement and power 5804 
Wishful thinking and the Maelstrom-21 5804 
I will need a direct radiator under the bottom… 5804 
ULF experience: Drivers & power considerations cont'd 5803 
To experiment during the New England winter 5803 
Pitching pitch 5803 
There are many key points…. 5803 
A first true bass test 5787 
Actually…. 5787 
Best place lost? 5782 
Best location for bass, where art thou? 5782 
What to expect from ULF channel? 5766 
OK, it is something. 5765 
The new ULF scenario experiments. 5758 
Time coherence of ULF - my experience 5758 
Placement of ULF #2 5758 
Why I like the like the location #1 5758 
I need to find another ULF solution. 5750 
Ceiling subs 5749 
The infinite baffle shall be a very good solution. 5749 
This morning I woke up horny 5749 
Dsp 5749 
Parametric filters 5748 
SMS 1, Act II 5748 
I think I have found the problem with my ULF 5748 
SMS distortion issue? 5748 
At 30Hz of high order there are not truly tone” of “sound” 5748 
DCX output stage mods 5748 
Very small minority of the folks… 5748 
Exactly zero I suspect. . . 5748 
DSP vs. Music vs. HT 5748 
10" array; how low? & SMS-1 distortion 5748 
Interesting: 10” vs. 15” 5748 
Multiples of the Same Rising Response Curve? 5748 
The crisis of perception. 5747 
Dynamic range of ULF, tsunami and something else. 5746 
The Circle Unbroken 5746 
I wonder… is it PP2000? 5730 
The ULF and PurePower 2000 5721 
ULF Channel and LP playback. 5664 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5662 
I do not have an opinion yet. 5662 
Imponderabilis Neurosis 5662 
Bass non-pathologic hallucination… 5662 
A new paradigm for ULF? 5662 
…a number of logical flaws… 5662 
MAD HATTER 5661 
Thinking about my lower bass 5641 
Has Schrödinger's cat moved in unnoticed? 5641 
Wrong. 5641 
Groove Echo 5641 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5640 
Listening help with ULF stimulator 5640 
The ULF debate: time-alignment 5638 
Trying to address the dilemma with lowest bass. 5637 
Rotary woofer for ULF? 5637 
I do not need a Rotary woofer, I need to be less Moron. 5637 
*** 5637 
Congrats 5636 
Getting some maturity with ULF 5635 
About ULF attenuation. 5634 
How is it implemented? 5634 
My implementation of ULF channel. 5634 
Further thoughts about ULF channel. 5633 
ULF 5633 
I would agree but… 5633 
The problem that that I see with my ULF 5633 
Loudspeaker Proximity Coupling in Midbass & ULF 5633 
Great rotary idea! 5633 
Brilliant analyses! 5633 
Going down with bass 5631 
Under FS 5631 
Ideal ULF/Midbass integration 5631 
My super smart room! 5631 
Erratum ( or errata if you insist) 5631 
The issue is a complex one and should not be addressed generically ... 5631 
Cost benefit analysis of midbass horns v/s compromised ULF 5631 
There is no cost-benefit analysis for this thing. 5631 
I will experiment. 5631 
Sometimes experiment is not just experiment. 5631 
One Bass Horn or Two – for Oxric 5630 
My ways to mimic Reality. 5630 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5630 
"the purpose of playing, whose end both at the first and now..." 5630 
No manuals for those things…. 5630 
More about Rotary ULF idea. 5625 
Phoenix Gold Cyclone 5625 
Passing the waves…. as usual.... 5621 
Drive ULF Amp from Midbass Amp Output 5620 
There is “something”… 5620 
I do not know what I deal with. 5619 
I want my ULF amp back. 5608 
ULF emergency: Big & nasty solutions 5607 
No-amplification time 5607 
Listening audio without ULF. 5606 
Ok, I got the bass amp… 5606 
How much power do I need for my ULF. 5596 
A True ULF - what an amassing tool!!! 5594 
Put Marchand Crossover into the game. 5590 
I begin to like my active crossover. 5578 
Line-level passive vs. active ULF filter 5576 
Hm, there is no way to escape the 4th order. 5576 
Phase butterfly effect. 5575 
Back to DSP? 5575 
What I am trying to accomplish. 5575 
The art of ULF volume adjustment. 5574 
Sitting on a fence with ULF 5572 
The overly-swallowable bass. 5565 
To deLamminate my ULF channel. 5564 
What a beautiful result!!! 5563 
Pipe Organ with 128' register in Augsburg, Germany 5557 
An absolute must for ULF channel. 5540 
The compartmentalized bass 5417 
Paralleled SET bass 5413 
A new concept of ULF channel. 5405 
Infinite baffle 5405 
A 4th order bandpass vibrator? 5405 
ULF idea, possibly stupid. 5404 
IB vs Horn 5404 
A Distributed Infinite Baffle? 5403 
"Tuning" the "IB" 5403 
Flip 90 degrees 5403 
Little bump and the elephant solutions 5403 
How to do THAT? 5402 
ULF from coffee table 5402 
The through-hole tapped horn. 5402 
25 hz at 6db? 5402 
ULF from the SledgeHammer 5402 
Why not really use the basement 5402 
Never say never 5402 
How good ULF needs to be? 5391 
How good the user needs to be? 5391 
Maybe . . . 5391 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5391 
Narrow [Band] Tuning (DSP?) 5391 
ULF-only Sound 5351 
An easy ULF solution for someone. 5343 
Red Grills 5343 
It is exactly what I would like to avoid. 5342 
So I took your advice 5284 
Ok, let me know how it goes. 5284 
The ULF amp Itch. 5270 
Here is an update for the old thread.... 2891 
Good highs 2891 
Marchand 1948 
What truly are you tryin to accomplish? 1948 
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