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In Reply to: RE: that is contradictory posted by bwb on March 18, 2012 at 07:58:22
Batteries can supply a lot of low frequency current; however, their impedance goes up at higher frequencies. The higher high frequency impedance is why the capacitor across them helps.
Play safe and play longer! Don't be an "OUCH!" casualty.
Unplug it, discharge it and measure it (twice) before you touch it.. . .Oh!. . .Remember: Modifying things voids their warranty.
Follow Ups:
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I can't find any data to support what you said. Do you have any links?
How much does the impedance go up from 20 to 20K?
Thanks
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Or you can just use batteries on the woofer amp.
and have a discontinuity of sound, if biamping a GOOD speaker, the amps MUST be exactly the same. A good system will use one amp, with the same time constant through it, and play it all !!! Look up a Serious Stereo 2A3 amp, as a start and a finish in amps.
Jeff Medwiin
I have to disagree, Jeff. I have bi-amped bunches of systems, and most of the time the amps are different. They all sound great. Of course, if you do have matching amps, so much the better. I do have to say though, I have never heard a SET amp with decent bass. Low bass is not a strong point of a SET design (the 'Single Ended with Slam' by Bruce Rozenblit may do it). I much prefer a decent SS amp up to about 300-500 Hz, and then go to tubes there in a bi-amped system.
"I much prefer a decent SS amp up to about 300-500 Hz, and then go to tubes there in a bi-amped system."
Hornloco
I had tubes. Prefer modern SS...........no transformers, bias, etc. to deal with, which is what you pay for. Love the even harmonics of tubes, but it's just a pleasant distortion.
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