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Site News: 17 May 2026

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Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Macondo’s lowest channel. 5767 
A mono LF channel – I do not like it. 5763 
LF Results 5763 
The size maters 5762 
Response Curve 5762 
ULF placement and power 5762 
Wishful thinking and the Maelstrom-21 5762 
I will need a direct radiator under the bottom… 5762 
ULF experience: Drivers & power considerations cont'd 5761 
To experiment during the New England winter 5761 
Pitching pitch 5761 
There are many key points…. 5761 
A first true bass test 5745 
Actually…. 5745 
Best place lost? 5740 
Best location for bass, where art thou? 5740 
What to expect from ULF channel? 5724 
OK, it is something. 5723 
The new ULF scenario experiments. 5716 
Time coherence of ULF - my experience 5716 
Placement of ULF #2 5716 
Why I like the like the location #1 5716 
I need to find another ULF solution. 5708 
Ceiling subs 5707 
The infinite baffle shall be a very good solution. 5707 
This morning I woke up horny 5707 
Dsp 5707 
Parametric filters 5706 
SMS 1, Act II 5706 
I think I have found the problem with my ULF 5706 
SMS distortion issue? 5706 
At 30Hz of high order there are not truly tone” of “sound” 5706 
DCX output stage mods 5706 
Very small minority of the folks… 5706 
Exactly zero I suspect. . . 5706 
DSP vs. Music vs. HT 5706 
10" array; how low? & SMS-1 distortion 5706 
Interesting: 10” vs. 15” 5706 
Multiples of the Same Rising Response Curve? 5706 
The crisis of perception. 5705 
Dynamic range of ULF, tsunami and something else. 5704 
The Circle Unbroken 5704 
I wonder… is it PP2000? 5688 
The ULF and PurePower 2000 5679 
ULF Channel and LP playback. 5622 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5620 
I do not have an opinion yet. 5620 
Imponderabilis Neurosis 5620 
Bass non-pathologic hallucination… 5620 
A new paradigm for ULF? 5620 
…a number of logical flaws… 5620 
MAD HATTER 5619 
Thinking about my lower bass 5599 
Has Schrödinger's cat moved in unnoticed? 5599 
Wrong. 5599 
Groove Echo 5599 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5598 
Listening help with ULF stimulator 5598 
The ULF debate: time-alignment 5596 
Trying to address the dilemma with lowest bass. 5595 
Rotary woofer for ULF? 5595 
I do not need a Rotary woofer, I need to be less Moron. 5595 
*** 5595 
Congrats 5594 
Getting some maturity with ULF 5593 
About ULF attenuation. 5592 
How is it implemented? 5592 
My implementation of ULF channel. 5592 
Further thoughts about ULF channel. 5591 
ULF 5591 
I would agree but… 5591 
The problem that that I see with my ULF 5591 
Loudspeaker Proximity Coupling in Midbass & ULF 5591 
Great rotary idea! 5591 
Brilliant analyses! 5591 
Going down with bass 5589 
Under FS 5589 
Ideal ULF/Midbass integration 5589 
My super smart room! 5589 
Erratum ( or errata if you insist) 5589 
The issue is a complex one and should not be addressed generically ... 5589 
Cost benefit analysis of midbass horns v/s compromised ULF 5589 
There is no cost-benefit analysis for this thing. 5589 
I will experiment. 5589 
Sometimes experiment is not just experiment. 5589 
One Bass Horn or Two – for Oxric 5588 
My ways to mimic Reality. 5588 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5588 
"the purpose of playing, whose end both at the first and now..." 5588 
No manuals for those things…. 5588 
More about Rotary ULF idea. 5583 
Phoenix Gold Cyclone 5583 
Passing the waves…. as usual.... 5579 
Drive ULF Amp from Midbass Amp Output 5578 
There is “something”… 5578 
I do not know what I deal with. 5577 
I want my ULF amp back. 5566 
ULF emergency: Big & nasty solutions 5565 
No-amplification time 5565 
Listening audio without ULF. 5564 
Ok, I got the bass amp… 5564 
How much power do I need for my ULF. 5554 
A True ULF - what an amassing tool!!! 5552 
Put Marchand Crossover into the game. 5548 
I begin to like my active crossover. 5536 
Line-level passive vs. active ULF filter 5534 
Hm, there is no way to escape the 4th order. 5534 
Phase butterfly effect. 5533 
Back to DSP? 5533 
What I am trying to accomplish. 5533 
The art of ULF volume adjustment. 5532 
Sitting on a fence with ULF 5530 
The overly-swallowable bass. 5523 
To deLamminate my ULF channel. 5522 
What a beautiful result!!! 5521 
Pipe Organ with 128' register in Augsburg, Germany 5515 
An absolute must for ULF channel. 5498 
The compartmentalized bass 5375 
Paralleled SET bass 5371 
A new concept of ULF channel. 5363 
Infinite baffle 5363 
A 4th order bandpass vibrator? 5363 
ULF idea, possibly stupid. 5362 
IB vs Horn 5362 
A Distributed Infinite Baffle? 5361 
"Tuning" the "IB" 5361 
Flip 90 degrees 5361 
Little bump and the elephant solutions 5361 
How to do THAT? 5360 
ULF from coffee table 5360 
The through-hole tapped horn. 5360 
25 hz at 6db? 5360 
ULF from the SledgeHammer 5360 
Why not really use the basement 5360 
Never say never 5360 
How good ULF needs to be? 5349 
How good the user needs to be? 5349 
Maybe . . . 5349 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5349 
Narrow [Band] Tuning (DSP?) 5349 
ULF-only Sound 5309 
An easy ULF solution for someone. 5301 
Red Grills 5301 
It is exactly what I would like to avoid. 5300 
So I took your advice 5242 
Ok, let me know how it goes. 5242 
The ULF amp Itch. 5228 
Here is an update for the old thread.... 2849 
Good highs 2849 
Marchand 1906 
What truly are you tryin to accomplish? 1906 
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