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- Users: zxc
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PPA no good anymore?
I haven't been able to listen to headphones regularly for the past six years. Recently I've returned, and wanted to build a PPA v2, only to see the boards are not offered anymore. But then I noticed some very nice PPA's (627/637, built in PSU, par metal case, diamond buffers) offered at...- zxc
- Thread
- Replies: 4
- Forum: Headphone Amps (full-size)
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PIMETA BLEW-UP ???
Ok, I have a pretty much standard pimeta with: 2x637 and 1x627 OpAmps 2xBuffers on L/R, single buffer on Ground. Gain 11 (same R values on Tangent's site) 2xWima 6.8uF 4xElna Cerafines (470uF, 35V) 100 Ohm resistors on outputs (for getting rid of background hiss) Driven with 18 Watt 24V...- zxc
- Thread
- Replies: 30
- Forum: DIY (Do-It-Yourself) Discussions
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TREBLE BOOST for PPA, Pimeta, MMM!
This is my first post. Thanks to all who've worked on Pimeta, PPA and MMM. I have just puilt my first Pimeta and I enjoy it a lot. Than I decided that my Senns really need tone controls. I noticed that I could implement the bass-boost circuit on PPA directly to Pimeta. Then I searched for...- zxc
- Thread
- Replies: 28
- Forum: DIY (Do-It-Yourself) Discussions