Myren
New Head-Fier
- Joined
- Jul 28, 2004
- Posts
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I'm looking to build an amp to run inline between my mp3 player and Grado SR 80's to turn this:
into
Currently my volume levels are just too low, and the sound starts clipping like a mofo when the volume is all the way up.
I had some schematics I was looking at using, but a lot of the amps I saw had rediculous power supplies: 8 or 16 double a batteries which lasted the wearer about 14 hours. That seems a little psychotic to me. My mp3 player uses a single triple a once every 7 hours.
Anyways, I'm wondering why so many of the designs I saw drink so much power. Are they setup for really high gain? Is it simply a choice of inefficient chips? Exceptional fidelity through overkill power supply?
What are some of my best bets for a power-efficient amplifier? I'll likely be using a DC-DC convertor since I dont plan on having more than two double a's. I figure my 2300 mah Sanyo's should work just fine.
I'm hoping you guys can help me get the ball rolling again. I was working on the PCB design for my amp before I ran into this dilemna sometime June, and I havent been back to work on this much needed project since. Anything you all can do to help me would be much appreciated.
I had some schematics I was looking at using, but a lot of the amps I saw had rediculous power supplies: 8 or 16 double a batteries which lasted the wearer about 14 hours. That seems a little psychotic to me. My mp3 player uses a single triple a once every 7 hours.
Anyways, I'm wondering why so many of the designs I saw drink so much power. Are they setup for really high gain? Is it simply a choice of inefficient chips? Exceptional fidelity through overkill power supply?
What are some of my best bets for a power-efficient amplifier? I'll likely be using a DC-DC convertor since I dont plan on having more than two double a's. I figure my 2300 mah Sanyo's should work just fine.
I'm hoping you guys can help me get the ball rolling again. I was working on the PCB design for my amp before I ran into this dilemna sometime June, and I havent been back to work on this much needed project since. Anything you all can do to help me would be much appreciated.