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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. 5820 
A mono LF channel – I do not like it. 5816 
LF Results 5816 
The size maters 5815 
Response Curve 5815 
ULF placement and power 5815 
Wishful thinking and the Maelstrom-21 5815 
I will need a direct radiator under the bottom… 5815 
ULF experience: Drivers & power considerations cont'd 5814 
To experiment during the New England winter 5814 
Pitching pitch 5814 
There are many key points…. 5814 
A first true bass test 5798 
Actually…. 5798 
Best place lost? 5793 
Best location for bass, where art thou? 5793 
What to expect from ULF channel? 5777 
OK, it is something. 5776 
The new ULF scenario experiments. 5769 
Time coherence of ULF - my experience 5769 
Placement of ULF #2 5769 
Why I like the like the location #1 5769 
I need to find another ULF solution. 5761 
Ceiling subs 5760 
The infinite baffle shall be a very good solution. 5760 
This morning I woke up horny 5760 
Dsp 5760 
Parametric filters 5759 
SMS 1, Act II 5759 
I think I have found the problem with my ULF 5759 
SMS distortion issue? 5759 
At 30Hz of high order there are not truly tone” of “sound” 5759 
DCX output stage mods 5759 
Very small minority of the folks… 5759 
Exactly zero I suspect. . . 5759 
DSP vs. Music vs. HT 5759 
10" array; how low? & SMS-1 distortion 5759 
Interesting: 10” vs. 15” 5759 
Multiples of the Same Rising Response Curve? 5759 
The crisis of perception. 5758 
Dynamic range of ULF, tsunami and something else. 5757 
The Circle Unbroken 5757 
I wonder… is it PP2000? 5741 
The ULF and PurePower 2000 5732 
ULF Channel and LP playback. 5675 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5673 
I do not have an opinion yet. 5673 
Imponderabilis Neurosis 5673 
Bass non-pathologic hallucination… 5673 
A new paradigm for ULF? 5673 
…a number of logical flaws… 5673 
MAD HATTER 5672 
Thinking about my lower bass 5652 
Has Schrödinger's cat moved in unnoticed? 5652 
Wrong. 5652 
Groove Echo 5652 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5651 
Listening help with ULF stimulator 5651 
The ULF debate: time-alignment 5649 
Trying to address the dilemma with lowest bass. 5648 
Rotary woofer for ULF? 5648 
I do not need a Rotary woofer, I need to be less Moron. 5648 
*** 5648 
Congrats 5647 
Getting some maturity with ULF 5646 
About ULF attenuation. 5645 
How is it implemented? 5645 
My implementation of ULF channel. 5645 
Further thoughts about ULF channel. 5644 
ULF 5644 
I would agree but… 5644 
The problem that that I see with my ULF 5644 
Loudspeaker Proximity Coupling in Midbass & ULF 5644 
Great rotary idea! 5644 
Brilliant analyses! 5644 
Going down with bass 5642 
Under FS 5642 
Ideal ULF/Midbass integration 5642 
My super smart room! 5642 
Erratum ( or errata if you insist) 5642 
The issue is a complex one and should not be addressed generically ... 5642 
Cost benefit analysis of midbass horns v/s compromised ULF 5642 
There is no cost-benefit analysis for this thing. 5642 
I will experiment. 5642 
Sometimes experiment is not just experiment. 5642 
One Bass Horn or Two – for Oxric 5641 
My ways to mimic Reality. 5641 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5641 
"the purpose of playing, whose end both at the first and now..." 5641 
No manuals for those things…. 5641 
More about Rotary ULF idea. 5636 
Phoenix Gold Cyclone 5636 
Passing the waves…. as usual.... 5632 
Drive ULF Amp from Midbass Amp Output 5631 
There is “something”… 5631 
I do not know what I deal with. 5630 
I want my ULF amp back. 5619 
ULF emergency: Big & nasty solutions 5618 
No-amplification time 5618 
Listening audio without ULF. 5617 
Ok, I got the bass amp… 5617 
How much power do I need for my ULF. 5607 
A True ULF - what an amassing tool!!! 5605 
Put Marchand Crossover into the game. 5601 
I begin to like my active crossover. 5589 
Line-level passive vs. active ULF filter 5587 
Hm, there is no way to escape the 4th order. 5587 
Phase butterfly effect. 5586 
Back to DSP? 5586 
What I am trying to accomplish. 5586 
The art of ULF volume adjustment. 5585 
Sitting on a fence with ULF 5583 
The overly-swallowable bass. 5576 
To deLamminate my ULF channel. 5575 
What a beautiful result!!! 5574 
Pipe Organ with 128' register in Augsburg, Germany 5568 
An absolute must for ULF channel. 5551 
The compartmentalized bass 5428 
Paralleled SET bass 5424 
A new concept of ULF channel. 5416 
Infinite baffle 5416 
A 4th order bandpass vibrator? 5416 
ULF idea, possibly stupid. 5415 
IB vs Horn 5415 
A Distributed Infinite Baffle? 5414 
"Tuning" the "IB" 5414 
Flip 90 degrees 5414 
Little bump and the elephant solutions 5414 
How to do THAT? 5413 
ULF from coffee table 5413 
The through-hole tapped horn. 5413 
25 hz at 6db? 5413 
ULF from the SledgeHammer 5413 
Why not really use the basement 5413 
Never say never 5413 
How good ULF needs to be? 5402 
How good the user needs to be? 5402 
Maybe . . . 5402 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5402 
Narrow [Band] Tuning (DSP?) 5402 
ULF-only Sound 5362 
An easy ULF solution for someone. 5354 
Red Grills 5354 
It is exactly what I would like to avoid. 5353 
So I took your advice 5295 
Ok, let me know how it goes. 5295 
The ULF amp Itch. 5281 
Here is an update for the old thread.... 2902 
Good highs 2902 
Marchand 1959 
What truly are you tryin to accomplish? 1959 
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