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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. 5818 
A mono LF channel – I do not like it. 5814 
LF Results 5814 
The size maters 5813 
Response Curve 5813 
ULF placement and power 5813 
Wishful thinking and the Maelstrom-21 5813 
I will need a direct radiator under the bottom… 5813 
ULF experience: Drivers & power considerations cont'd 5812 
To experiment during the New England winter 5812 
Pitching pitch 5812 
There are many key points…. 5812 
A first true bass test 5796 
Actually…. 5796 
Best place lost? 5791 
Best location for bass, where art thou? 5791 
What to expect from ULF channel? 5775 
OK, it is something. 5774 
The new ULF scenario experiments. 5767 
Time coherence of ULF - my experience 5767 
Placement of ULF #2 5767 
Why I like the like the location #1 5767 
I need to find another ULF solution. 5759 
Ceiling subs 5758 
The infinite baffle shall be a very good solution. 5758 
This morning I woke up horny 5758 
Dsp 5758 
Parametric filters 5757 
SMS 1, Act II 5757 
I think I have found the problem with my ULF 5757 
SMS distortion issue? 5757 
At 30Hz of high order there are not truly tone” of “sound” 5757 
DCX output stage mods 5757 
Very small minority of the folks… 5757 
Exactly zero I suspect. . . 5757 
DSP vs. Music vs. HT 5757 
10" array; how low? & SMS-1 distortion 5757 
Interesting: 10” vs. 15” 5757 
Multiples of the Same Rising Response Curve? 5757 
The crisis of perception. 5756 
Dynamic range of ULF, tsunami and something else. 5755 
The Circle Unbroken 5755 
I wonder… is it PP2000? 5739 
The ULF and PurePower 2000 5730 
ULF Channel and LP playback. 5673 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5671 
I do not have an opinion yet. 5671 
Imponderabilis Neurosis 5671 
Bass non-pathologic hallucination… 5671 
A new paradigm for ULF? 5671 
…a number of logical flaws… 5671 
MAD HATTER 5670 
Thinking about my lower bass 5650 
Has Schrödinger's cat moved in unnoticed? 5650 
Wrong. 5650 
Groove Echo 5650 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5649 
Listening help with ULF stimulator 5649 
The ULF debate: time-alignment 5647 
Trying to address the dilemma with lowest bass. 5646 
Rotary woofer for ULF? 5646 
I do not need a Rotary woofer, I need to be less Moron. 5646 
*** 5646 
Congrats 5645 
Getting some maturity with ULF 5644 
About ULF attenuation. 5643 
How is it implemented? 5643 
My implementation of ULF channel. 5643 
Further thoughts about ULF channel. 5642 
ULF 5642 
I would agree but… 5642 
The problem that that I see with my ULF 5642 
Loudspeaker Proximity Coupling in Midbass & ULF 5642 
Great rotary idea! 5642 
Brilliant analyses! 5642 
Going down with bass 5640 
Under FS 5640 
Ideal ULF/Midbass integration 5640 
My super smart room! 5640 
Erratum ( or errata if you insist) 5640 
The issue is a complex one and should not be addressed generically ... 5640 
Cost benefit analysis of midbass horns v/s compromised ULF 5640 
There is no cost-benefit analysis for this thing. 5640 
I will experiment. 5640 
Sometimes experiment is not just experiment. 5640 
One Bass Horn or Two – for Oxric 5639 
My ways to mimic Reality. 5639 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5639 
"the purpose of playing, whose end both at the first and now..." 5639 
No manuals for those things…. 5639 
More about Rotary ULF idea. 5634 
Phoenix Gold Cyclone 5634 
Passing the waves…. as usual.... 5630 
Drive ULF Amp from Midbass Amp Output 5629 
There is “something”… 5629 
I do not know what I deal with. 5628 
I want my ULF amp back. 5617 
ULF emergency: Big & nasty solutions 5616 
No-amplification time 5616 
Listening audio without ULF. 5615 
Ok, I got the bass amp… 5615 
How much power do I need for my ULF. 5605 
A True ULF - what an amassing tool!!! 5603 
Put Marchand Crossover into the game. 5599 
I begin to like my active crossover. 5587 
Line-level passive vs. active ULF filter 5585 
Hm, there is no way to escape the 4th order. 5585 
Phase butterfly effect. 5584 
Back to DSP? 5584 
What I am trying to accomplish. 5584 
The art of ULF volume adjustment. 5583 
Sitting on a fence with ULF 5581 
The overly-swallowable bass. 5574 
To deLamminate my ULF channel. 5573 
What a beautiful result!!! 5572 
Pipe Organ with 128' register in Augsburg, Germany 5566 
An absolute must for ULF channel. 5549 
The compartmentalized bass 5426 
Paralleled SET bass 5422 
A new concept of ULF channel. 5414 
Infinite baffle 5414 
A 4th order bandpass vibrator? 5414 
ULF idea, possibly stupid. 5413 
IB vs Horn 5413 
A Distributed Infinite Baffle? 5412 
"Tuning" the "IB" 5412 
Flip 90 degrees 5412 
Little bump and the elephant solutions 5412 
How to do THAT? 5411 
ULF from coffee table 5411 
The through-hole tapped horn. 5411 
25 hz at 6db? 5411 
ULF from the SledgeHammer 5411 
Why not really use the basement 5411 
Never say never 5411 
How good ULF needs to be? 5400 
How good the user needs to be? 5400 
Maybe . . . 5400 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5400 
Narrow [Band] Tuning (DSP?) 5400 
ULF-only Sound 5360 
An easy ULF solution for someone. 5352 
Red Grills 5352 
It is exactly what I would like to avoid. 5351 
So I took your advice 5293 
Ok, let me know how it goes. 5293 
The ULF amp Itch. 5279 
Here is an update for the old thread.... 2900 
Good highs 2900 
Marchand 1957 
What truly are you tryin to accomplish? 1957 
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