New PS for Monica2
bikerboy
Posts: 1,228
Hi,
I have been having a noise problem with my monica2 and decided to make a better power supply to use for trouble shooting. I had a transformer from I think a bose wave radio. That and a rectifier, and two 6800 uf electrolytic caps in super E configuration w/ 0.1uf Auricap for bypass and hooked it up. It has 15.8v output. Sounds much better than the wall wort I was using before. Bass is cleaner, louder when needed. Imaging is better, strings of a guitar more noticable, claps easier to hear. Better dynamics. I wonder how long it will take for the caps to burn in? Too bad it didnt fix the noise problem. If I touch or twist the pcb a bad crackling, or scratching sound will come and go. I can mess with it and make the noise louder or quieter, sometimes. It is sensitive to temp, on warm up is when I first notice it. At least it is normal most of the time. Any ideas? I have emailed Yeo at diyparadise and I probable will get a monica3 and ditch the monica2. I am tired of messing with it. I will give it a couple of days and decide then. Theres a pic.
I have been having a noise problem with my monica2 and decided to make a better power supply to use for trouble shooting. I had a transformer from I think a bose wave radio. That and a rectifier, and two 6800 uf electrolytic caps in super E configuration w/ 0.1uf Auricap for bypass and hooked it up. It has 15.8v output. Sounds much better than the wall wort I was using before. Bass is cleaner, louder when needed. Imaging is better, strings of a guitar more noticable, claps easier to hear. Better dynamics. I wonder how long it will take for the caps to burn in? Too bad it didnt fix the noise problem. If I touch or twist the pcb a bad crackling, or scratching sound will come and go. I can mess with it and make the noise louder or quieter, sometimes. It is sensitive to temp, on warm up is when I first notice it. At least it is normal most of the time. Any ideas? I have emailed Yeo at diyparadise and I probable will get a monica3 and ditch the monica2. I am tired of messing with it. I will give it a couple of days and decide then. Theres a pic.
Main system: Lyngdorf TDAI-2170 w Polk LSiM 703/ Pioneer 42" plasma w Flex Streamer, Sangaen HDT-1tuner
Vinyl: Nothingham Spacedeck->Pioneer PL L1000 linear arm->Soundsmith DL 103R w Contact line stylus->SUT->
Bottlehead Eros
Digital: I7 PC w/ Jriver playing flac -> Sonore Ultrarendu -> Twisted Pair Audio ESS 9028 w/ Mercury IVY
CD: DIY Shigaclone
Vinyl rips: ESI Juli@24/192->Goldwave->i7 PC server
Vinyl: Nothingham Spacedeck->Pioneer PL L1000 linear arm->Soundsmith DL 103R w Contact line stylus->SUT->
Bottlehead Eros
Digital: I7 PC w/ Jriver playing flac -> Sonore Ultrarendu -> Twisted Pair Audio ESS 9028 w/ Mercury IVY
CD: DIY Shigaclone
Vinyl rips: ESI Juli@24/192->Goldwave->i7 PC server