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Old 19th December 2002, 02:28 PM   #21
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Quote:
(waiting for the poop to start raining)

O.K. you wanted it like that


Me too I am not a proponent of super high-damping factors since you can take the amplifiers output impedance into account when designing your speakers.

But I'd like to know how much you actually prefer.

Regards

Charles
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Old 19th December 2002, 02:34 PM   #22
Joel is offline Joel  United States
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Definitely single digits. I'm convinced that this is one reason the low frequencies from my amplifiers sound so.... non-directional, and acoustic, which I prefer. When I use my mosfet amp with damping of 200+, the lows seem incredibly point oriented, and 'focused'. To me, that's not an effect I prefer.

***DISCLAIMER: I make no scientific claims here. I am merely floating a half-baked theory.
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Old 19th December 2002, 02:37 PM   #23
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Hi,

And why not start a new thread on this interesting topic iso of threadjacking this one into oblivion?

Who volunteers?

Cheers,
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Old 19th December 2002, 02:41 PM   #24
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Default YOU SAID IT.

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Old 19th December 2002, 04:47 PM   #25
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Back to topic-

Can anyone tell me if there would be any difference soundwise if I lowered the resistor to 5K and adjusted the capacitor accordingly vs. the 10K and .050 MICROfarad I have now.

Anybody else out there using two single ended amps in a bi-amp setup?


Going downstairs to listen again.........

Ciao!

Lee
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Old 19th December 2002, 04:55 PM   #26
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Hi,

Quote:
difference soundwise if I lowered the resistor to 5K and adjusted the
Hard to tell without knowing what precedes and follows the circuit at hand.

The total R of 10K was likely chosen for a couple of reasons:

1/not to load the preamp too much.

2/to arrive at standard value parts,or close enough.

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Old 19th December 2002, 05:59 PM   #27
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Default Re: This is incredible!--An audio epiphany!!

Quote:
Originally posted by RADIOLEE
http://139.142.118.15/sites/diy/tech...ssiveHLxo.html
My ISP is changing providers and this hard IP URL will break soon. More appropriate is

http://www.t-linespeakers.org/tech/f...ssiveHLxo.html

dave
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Old 19th December 2002, 06:07 PM   #28
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Quote:
Originally posted by RADIOLEE
Anybody else out there using two single ended amps in a bi-amp setup?
Not SETs, but a quad of mono differential amps.
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Old 19th December 2002, 06:18 PM   #29
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Quote:
Originally posted by RADIOLEE
Can anyone tell me if there would be any difference soundwise if I lowered the resistor to 5K and adjusted the capacitor accordingly vs. the 10K and .050 MICROfarad I have now.
Go the other way, up in impedance an order of magnitude to 100k. Your preamp will prefer driving higher impedance loads, and it's easier to get high tolerance, high quality capacitors in smaller values. Usually cheaper too.

Something else to try too, esp if you're using the 6dB option, is that in the S.E.X. amp there is a 0u47 cap before the 270k grid resistor. As you already have the cap in the signal path, why not resize it to be the correct value for the high pass element in your xover? You already have the cap in the signal path, so use it as an advantage, rather than adding another one.
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Old 19th December 2002, 06:29 PM   #30
dhaen is offline dhaen  Europe
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Quote:
Go the other way, up in impedance an order of magnitude to 100k
Good for the source, but the destination wiring must be short.

Damn, I must try those ribbons myself.
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