Self Medicating > General DIY

passive pre's

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shep:
As a long time user/believer in these, I want some experience/feedback from other users. My homemade pair got too many bad repair jobs from yours-truly and they're shot. I'm facinated by the hair-shirt approach (though my knees are not), the ultimate expression being the Endlers and the "ultimates" from tweak.com. The reason being that they do away with the interconnect story altogether. They bring another problem, namely that they will not fit on the back of many amps due to spacing issues. That said, my new amp could have holes drilled out and new rca's put in that would accept these passives. I am fairly conversant with the issues, the pros and cons and am in the pro camp obviously. If anyof you have hands-onexperience of these two mentioned or similar ones that I don't know of, I would be gratefull to hear about same.

mgalusha:
I've built several, one just using simple pots and a second using a GoldPoint stepped attenuator.

I liked the results quite a bit at the time but for some reason I went back to a vacuum tube line stage. Sadly I can't remember exactly why as it's been a few years. I *think* it was because of reduced dynamics when I changed amps as the newer amps had a much lower Zin that the old ones and were not a good match for the passive pre.

Interestingly enough I was offered a TVC in trade today for a pair of Greg Ball's GB-300D amp modules. I've agreed and hopefully will be receiving that in the near future. It will in interesting to see how it works in the system once I repair it.

mike

WEEZ:
shep,

what is it you like about passives? do you have a high current source..and a high gain amplifier? curious..

shep:
Nothing so thought-out! The answer is: Simplicity, Reliability, Transparency, Economy. The last should be first. I don't mind the trade off
of dynamics against a see-thru, straight-wire approach. Maybe I've been lucky or just ignorant but I've never heard a down-side and I'm an old school, one source, keep it rudimentary approach... I get addled if there are two many buttons and switches. Seriously though, anything that removes the cable variable has got to be better. If I would decently solder everything together in one chain I would, but it makes up-grading a royal pain in the ass.

WEEZ:
www.goldpt.com/sa1.html

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