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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. 5817 
A mono LF channel – I do not like it. 5813 
LF Results 5813 
The size maters 5812 
Response Curve 5812 
ULF placement and power 5812 
Wishful thinking and the Maelstrom-21 5812 
I will need a direct radiator under the bottom… 5812 
ULF experience: Drivers & power considerations cont'd 5811 
To experiment during the New England winter 5811 
Pitching pitch 5811 
There are many key points…. 5811 
A first true bass test 5795 
Actually…. 5795 
Best place lost? 5790 
Best location for bass, where art thou? 5790 
What to expect from ULF channel? 5774 
OK, it is something. 5773 
The new ULF scenario experiments. 5766 
Time coherence of ULF - my experience 5766 
Placement of ULF #2 5766 
Why I like the like the location #1 5766 
I need to find another ULF solution. 5758 
Ceiling subs 5757 
The infinite baffle shall be a very good solution. 5757 
This morning I woke up horny 5757 
Dsp 5757 
Parametric filters 5756 
SMS 1, Act II 5756 
I think I have found the problem with my ULF 5756 
SMS distortion issue? 5756 
At 30Hz of high order there are not truly tone” of “sound” 5756 
DCX output stage mods 5756 
Very small minority of the folks… 5756 
Exactly zero I suspect. . . 5756 
DSP vs. Music vs. HT 5756 
10" array; how low? & SMS-1 distortion 5756 
Interesting: 10” vs. 15” 5756 
Multiples of the Same Rising Response Curve? 5756 
The crisis of perception. 5755 
Dynamic range of ULF, tsunami and something else. 5754 
The Circle Unbroken 5754 
I wonder… is it PP2000? 5738 
The ULF and PurePower 2000 5729 
ULF Channel and LP playback. 5672 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5670 
I do not have an opinion yet. 5670 
Imponderabilis Neurosis 5670 
Bass non-pathologic hallucination… 5670 
A new paradigm for ULF? 5670 
…a number of logical flaws… 5670 
MAD HATTER 5669 
Thinking about my lower bass 5649 
Has Schrödinger's cat moved in unnoticed? 5649 
Wrong. 5649 
Groove Echo 5649 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5648 
Listening help with ULF stimulator 5648 
The ULF debate: time-alignment 5646 
Trying to address the dilemma with lowest bass. 5645 
Rotary woofer for ULF? 5645 
I do not need a Rotary woofer, I need to be less Moron. 5645 
*** 5645 
Congrats 5644 
Getting some maturity with ULF 5643 
About ULF attenuation. 5642 
How is it implemented? 5642 
My implementation of ULF channel. 5642 
Further thoughts about ULF channel. 5641 
ULF 5641 
I would agree but… 5641 
The problem that that I see with my ULF 5641 
Loudspeaker Proximity Coupling in Midbass & ULF 5641 
Great rotary idea! 5641 
Brilliant analyses! 5641 
Going down with bass 5639 
Under FS 5639 
Ideal ULF/Midbass integration 5639 
My super smart room! 5639 
Erratum ( or errata if you insist) 5639 
The issue is a complex one and should not be addressed generically ... 5639 
Cost benefit analysis of midbass horns v/s compromised ULF 5639 
There is no cost-benefit analysis for this thing. 5639 
I will experiment. 5639 
Sometimes experiment is not just experiment. 5639 
One Bass Horn or Two – for Oxric 5638 
My ways to mimic Reality. 5638 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5638 
"the purpose of playing, whose end both at the first and now..." 5638 
No manuals for those things…. 5638 
More about Rotary ULF idea. 5633 
Phoenix Gold Cyclone 5633 
Passing the waves…. as usual.... 5629 
Drive ULF Amp from Midbass Amp Output 5628 
There is “something”… 5628 
I do not know what I deal with. 5627 
I want my ULF amp back. 5616 
ULF emergency: Big & nasty solutions 5615 
No-amplification time 5615 
Listening audio without ULF. 5614 
Ok, I got the bass amp… 5614 
How much power do I need for my ULF. 5604 
A True ULF - what an amassing tool!!! 5602 
Put Marchand Crossover into the game. 5598 
I begin to like my active crossover. 5586 
Line-level passive vs. active ULF filter 5584 
Hm, there is no way to escape the 4th order. 5584 
Phase butterfly effect. 5583 
Back to DSP? 5583 
What I am trying to accomplish. 5583 
The art of ULF volume adjustment. 5582 
Sitting on a fence with ULF 5580 
The overly-swallowable bass. 5573 
To deLamminate my ULF channel. 5572 
What a beautiful result!!! 5571 
Pipe Organ with 128' register in Augsburg, Germany 5565 
An absolute must for ULF channel. 5548 
The compartmentalized bass 5425 
Paralleled SET bass 5421 
A new concept of ULF channel. 5413 
Infinite baffle 5413 
A 4th order bandpass vibrator? 5413 
ULF idea, possibly stupid. 5412 
IB vs Horn 5412 
A Distributed Infinite Baffle? 5411 
"Tuning" the "IB" 5411 
Flip 90 degrees 5411 
Little bump and the elephant solutions 5411 
How to do THAT? 5410 
ULF from coffee table 5410 
The through-hole tapped horn. 5410 
25 hz at 6db? 5410 
ULF from the SledgeHammer 5410 
Why not really use the basement 5410 
Never say never 5410 
How good ULF needs to be? 5399 
How good the user needs to be? 5399 
Maybe . . . 5399 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5399 
Narrow [Band] Tuning (DSP?) 5399 
ULF-only Sound 5359 
An easy ULF solution for someone. 5351 
Red Grills 5351 
It is exactly what I would like to avoid. 5350 
So I took your advice 5292 
Ok, let me know how it goes. 5292 
The ULF amp Itch. 5278 
Here is an update for the old thread.... 2899 
Good highs 2899 
Marchand 1956 
What truly are you tryin to accomplish? 1956 
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