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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. 5819 
A mono LF channel – I do not like it. 5815 
LF Results 5815 
The size maters 5814 
Response Curve 5814 
ULF placement and power 5814 
Wishful thinking and the Maelstrom-21 5814 
I will need a direct radiator under the bottom… 5814 
ULF experience: Drivers & power considerations cont'd 5813 
To experiment during the New England winter 5813 
Pitching pitch 5813 
There are many key points…. 5813 
A first true bass test 5797 
Actually…. 5797 
Best place lost? 5792 
Best location for bass, where art thou? 5792 
What to expect from ULF channel? 5776 
OK, it is something. 5775 
The new ULF scenario experiments. 5768 
Time coherence of ULF - my experience 5768 
Placement of ULF #2 5768 
Why I like the like the location #1 5768 
I need to find another ULF solution. 5760 
Ceiling subs 5759 
The infinite baffle shall be a very good solution. 5759 
This morning I woke up horny 5759 
Dsp 5759 
Parametric filters 5758 
SMS 1, Act II 5758 
I think I have found the problem with my ULF 5758 
SMS distortion issue? 5758 
At 30Hz of high order there are not truly tone” of “sound” 5758 
DCX output stage mods 5758 
Very small minority of the folks… 5758 
Exactly zero I suspect. . . 5758 
DSP vs. Music vs. HT 5758 
10" array; how low? & SMS-1 distortion 5758 
Interesting: 10” vs. 15” 5758 
Multiples of the Same Rising Response Curve? 5758 
The crisis of perception. 5757 
Dynamic range of ULF, tsunami and something else. 5756 
The Circle Unbroken 5756 
I wonder… is it PP2000? 5740 
The ULF and PurePower 2000 5731 
ULF Channel and LP playback. 5674 
Are original Aura Sound 1808 sound ULF solution for sealed enclosure? 5672 
I do not have an opinion yet. 5672 
Imponderabilis Neurosis 5672 
Bass non-pathologic hallucination… 5672 
A new paradigm for ULF? 5672 
…a number of logical flaws… 5672 
MAD HATTER 5671 
Thinking about my lower bass 5651 
Has Schrödinger's cat moved in unnoticed? 5651 
Wrong. 5651 
Groove Echo 5651 
Wrong? Actually, our actual positions differ very little, surprisingly enough. 5650 
Listening help with ULF stimulator 5650 
The ULF debate: time-alignment 5648 
Trying to address the dilemma with lowest bass. 5647 
Rotary woofer for ULF? 5647 
I do not need a Rotary woofer, I need to be less Moron. 5647 
*** 5647 
Congrats 5646 
Getting some maturity with ULF 5645 
About ULF attenuation. 5644 
How is it implemented? 5644 
My implementation of ULF channel. 5644 
Further thoughts about ULF channel. 5643 
ULF 5643 
I would agree but… 5643 
The problem that that I see with my ULF 5643 
Loudspeaker Proximity Coupling in Midbass & ULF 5643 
Great rotary idea! 5643 
Brilliant analyses! 5643 
Going down with bass 5641 
Under FS 5641 
Ideal ULF/Midbass integration 5641 
My super smart room! 5641 
Erratum ( or errata if you insist) 5641 
The issue is a complex one and should not be addressed generically ... 5641 
Cost benefit analysis of midbass horns v/s compromised ULF 5641 
There is no cost-benefit analysis for this thing. 5641 
I will experiment. 5641 
Sometimes experiment is not just experiment. 5641 
One Bass Horn or Two – for Oxric 5640 
My ways to mimic Reality. 5640 
Patent GB 394,325. "Transmitting, recording, and reproducing music..." 5640 
"the purpose of playing, whose end both at the first and now..." 5640 
No manuals for those things…. 5640 
More about Rotary ULF idea. 5635 
Phoenix Gold Cyclone 5635 
Passing the waves…. as usual.... 5631 
Drive ULF Amp from Midbass Amp Output 5630 
There is “something”… 5630 
I do not know what I deal with. 5629 
I want my ULF amp back. 5618 
ULF emergency: Big & nasty solutions 5617 
No-amplification time 5617 
Listening audio without ULF. 5616 
Ok, I got the bass amp… 5616 
How much power do I need for my ULF. 5606 
A True ULF - what an amassing tool!!! 5604 
Put Marchand Crossover into the game. 5600 
I begin to like my active crossover. 5588 
Line-level passive vs. active ULF filter 5586 
Hm, there is no way to escape the 4th order. 5586 
Phase butterfly effect. 5585 
Back to DSP? 5585 
What I am trying to accomplish. 5585 
The art of ULF volume adjustment. 5584 
Sitting on a fence with ULF 5582 
The overly-swallowable bass. 5575 
To deLamminate my ULF channel. 5574 
What a beautiful result!!! 5573 
Pipe Organ with 128' register in Augsburg, Germany 5567 
An absolute must for ULF channel. 5550 
The compartmentalized bass 5427 
Paralleled SET bass 5423 
A new concept of ULF channel. 5415 
Infinite baffle 5415 
A 4th order bandpass vibrator? 5415 
ULF idea, possibly stupid. 5414 
IB vs Horn 5414 
A Distributed Infinite Baffle? 5413 
"Tuning" the "IB" 5413 
Flip 90 degrees 5413 
Little bump and the elephant solutions 5413 
How to do THAT? 5412 
ULF from coffee table 5412 
The through-hole tapped horn. 5412 
25 hz at 6db? 5412 
ULF from the SledgeHammer 5412 
Why not really use the basement 5412 
Never say never 5412 
How good ULF needs to be? 5401 
How good the user needs to be? 5401 
Maybe . . . 5401 
I think there is little evidence of marketing bias in the papers. Call me naive if you wish. 5401 
Narrow [Band] Tuning (DSP?) 5401 
ULF-only Sound 5361 
An easy ULF solution for someone. 5353 
Red Grills 5353 
It is exactly what I would like to avoid. 5352 
So I took your advice 5294 
Ok, let me know how it goes. 5294 
The ULF amp Itch. 5280 
Here is an update for the old thread.... 2901 
Good highs 2901 
Marchand 1958 
What truly are you tryin to accomplish? 1958 
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