mezzman
100+ Head-Fier
- Joined
- Feb 7, 2002
- Posts
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I am planning on building a phono preamp/headphone amp combo for a friend who owns a record shop. He has numerous turntable 'stations' where customers can listen to vinyl before buying. At the moment he's got the little Radio Shack mini-stereo amps hooked up, but the pots on the unit just aren't up to the heavy use and give out rather quickly. The RS amps also have uneeded line level inputs as well as an unsused power amp that just wastes electricity.
I would like to be able to offer him a solution based on the following cirteria:
- Heavy duty construction
- AC powered
- better sound quality than rat shack
- budget oriented
I have found a few circuits for the RIAA preamp side that look pretty good, now I need a good headphone section. I am considering a Cmoy type, the low parts count/simple design looks like it will do the trick so far.
I'd like to know if a decent quality, robust pot exists that will suit this type of project. I'm not looking for an ALPS pot, something a little more economical and tough.
If anyone has a few pearls of wisdom regarding something like this, please let me know, as I am trying to gather as much info as I can (lots of R&D ahead!) to make this box work.
I hope I'm correct in assuming that I can just pass the output of the RIAA pre into the inputs of the Cmoy without incidence. Could it be this easy?
I would like to be able to offer him a solution based on the following cirteria:
- Heavy duty construction
- AC powered
- better sound quality than rat shack
- budget oriented
I have found a few circuits for the RIAA preamp side that look pretty good, now I need a good headphone section. I am considering a Cmoy type, the low parts count/simple design looks like it will do the trick so far.
I'd like to know if a decent quality, robust pot exists that will suit this type of project. I'm not looking for an ALPS pot, something a little more economical and tough.
If anyone has a few pearls of wisdom regarding something like this, please let me know, as I am trying to gather as much info as I can (lots of R&D ahead!) to make this box work.
I hope I'm correct in assuming that I can just pass the output of the RIAA pre into the inputs of the Cmoy without incidence. Could it be this easy?