HI all, I am currently having a problem with my PPA V1. I recently purchased a pair of Denon D7000 headphones which have a 25 ohm load. I initially built the amp with a gain of 10, but with the Denon's I had hardly any volume control. I then changed the gain to 5, which gave me more volume...

Hi all, I am having a strange problem with my new Beyer DT770's. They do not seem to work correctly when I plug them into my PPA amp. The left channel plays music very quiet compared to the right. If i turn the volume up, the left side will crackle. I thought it could be the neutrik jack on...

I am having a very hard time deciding which cd player to purchase. I will be upgrading from my Panasonic SX300 PCDP so I will probably see improvement in anything I buy. I will be listening to the player through my meta42 amp and my Sennheiser 580 headphones with cardas cable. I typically...

Well, I have the amp nearly done, except for one little detail. I am using a Elpac linear regulated power supply that uses a Din jack to hook up. I know that I am not supposed to use the rail splitter or P.S. buffer because it is already +12 / -12. How do I hookup from the Din jack to the...

I am currently in the process of building my first META42 amp. My first amp of any kind for that matter. The amp will be for use with the line out on my panasonic PCDP and with Senn. HD580's I wanted to run by the values I have come up with for the resistors, to make sure I have chosen...