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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. 5810 
A mono LF channel – I do not like it. 5806 
LF Results 5806 
The size maters 5805 
Response Curve 5805 
ULF placement and power 5805 
Wishful thinking and the Maelstrom-21 5805 
I will need a direct radiator under the bottom… 5805 
ULF experience: Drivers & power considerations cont'd 5804 
To experiment during the New England winter 5804 
Pitching pitch 5804 
There are many key points…. 5804 
A first true bass test 5788 
Actually…. 5788 
Best place lost? 5783 
Best location for bass, where art thou? 5783 
What to expect from ULF channel? 5767 
OK, it is something. 5766 
The new ULF scenario experiments. 5759 
Time coherence of ULF - my experience 5759 
Placement of ULF #2 5759 
Why I like the like the location #1 5759 
I need to find another ULF solution. 5751 
Ceiling subs 5750 
The infinite baffle shall be a very good solution. 5750 
This morning I woke up horny 5750 
Dsp 5750 
Parametric filters 5749 
SMS 1, Act II 5749 
I think I have found the problem with my ULF 5749 
SMS distortion issue? 5749 
At 30Hz of high order there are not truly tone” of “sound” 5749 
DCX output stage mods 5749 
Very small minority of the folks… 5749 
Exactly zero I suspect. . . 5749 
DSP vs. Music vs. HT 5749 
10" array; how low? & SMS-1 distortion 5749 
Interesting: 10” vs. 15” 5749 
Multiples of the Same Rising Response Curve? 5749 
The crisis of perception. 5748 
Dynamic range of ULF, tsunami and something else. 5747 
The Circle Unbroken 5747 
I wonder… is it PP2000? 5731 
The ULF and PurePower 2000 5722 
ULF Channel and LP playback. 5665 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5663 
I do not have an opinion yet. 5663 
Imponderabilis Neurosis 5663 
Bass non-pathologic hallucination… 5663 
A new paradigm for ULF? 5663 
…a number of logical flaws… 5663 
MAD HATTER 5662 
Thinking about my lower bass 5642 
Has Schrödinger's cat moved in unnoticed? 5642 
Wrong. 5642 
Groove Echo 5642 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5641 
Listening help with ULF stimulator 5641 
The ULF debate: time-alignment 5639 
Trying to address the dilemma with lowest bass. 5638 
Rotary woofer for ULF? 5638 
I do not need a Rotary woofer, I need to be less Moron. 5638 
*** 5638 
Congrats 5637 
Getting some maturity with ULF 5636 
About ULF attenuation. 5635 
How is it implemented? 5635 
My implementation of ULF channel. 5635 
Further thoughts about ULF channel. 5634 
ULF 5634 
I would agree but… 5634 
The problem that that I see with my ULF 5634 
Loudspeaker Proximity Coupling in Midbass & ULF 5634 
Great rotary idea! 5634 
Brilliant analyses! 5634 
Going down with bass 5632 
Under FS 5632 
Ideal ULF/Midbass integration 5632 
My super smart room! 5632 
Erratum ( or errata if you insist) 5632 
The issue is a complex one and should not be addressed generically ... 5632 
Cost benefit analysis of midbass horns v/s compromised ULF 5632 
There is no cost-benefit analysis for this thing. 5632 
I will experiment. 5632 
Sometimes experiment is not just experiment. 5632 
One Bass Horn or Two – for Oxric 5631 
My ways to mimic Reality. 5631 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5631 
"the purpose of playing, whose end both at the first and now..." 5631 
No manuals for those things…. 5631 
More about Rotary ULF idea. 5626 
Phoenix Gold Cyclone 5626 
Passing the waves…. as usual.... 5622 
Drive ULF Amp from Midbass Amp Output 5621 
There is “something”… 5621 
I do not know what I deal with. 5620 
I want my ULF amp back. 5609 
ULF emergency: Big & nasty solutions 5608 
No-amplification time 5608 
Listening audio without ULF. 5607 
Ok, I got the bass amp… 5607 
How much power do I need for my ULF. 5597 
A True ULF - what an amassing tool!!! 5595 
Put Marchand Crossover into the game. 5591 
I begin to like my active crossover. 5579 
Line-level passive vs. active ULF filter 5577 
Hm, there is no way to escape the 4th order. 5577 
Phase butterfly effect. 5576 
Back to DSP? 5576 
What I am trying to accomplish. 5576 
The art of ULF volume adjustment. 5575 
Sitting on a fence with ULF 5573 
The overly-swallowable bass. 5566 
To deLamminate my ULF channel. 5565 
What a beautiful result!!! 5564 
Pipe Organ with 128' register in Augsburg, Germany 5558 
An absolute must for ULF channel. 5541 
The compartmentalized bass 5418 
Paralleled SET bass 5414 
A new concept of ULF channel. 5406 
Infinite baffle 5406 
A 4th order bandpass vibrator? 5406 
ULF idea, possibly stupid. 5405 
IB vs Horn 5405 
A Distributed Infinite Baffle? 5404 
"Tuning" the "IB" 5404 
Flip 90 degrees 5404 
Little bump and the elephant solutions 5404 
How to do THAT? 5403 
ULF from coffee table 5403 
The through-hole tapped horn. 5403 
25 hz at 6db? 5403 
ULF from the SledgeHammer 5403 
Why not really use the basement 5403 
Never say never 5403 
How good ULF needs to be? 5392 
How good the user needs to be? 5392 
Maybe . . . 5392 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5392 
Narrow [Band] Tuning (DSP?) 5392 
ULF-only Sound 5352 
An easy ULF solution for someone. 5344 
Red Grills 5344 
It is exactly what I would like to avoid. 5343 
So I took your advice 5285 
Ok, let me know how it goes. 5285 
The ULF amp Itch. 5271 
Here is an update for the old thread.... 2892 
Good highs 2892 
Marchand 1949 
What truly are you tryin to accomplish? 1949 
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