Monolithic Sound,separate power supply and phono preamp. I had it sent to Mod wright for mods. This made a big difference, bass was tighter and lower,pulls more information and very sweet sparkling highs.I have owned this wonderful phono stage 10 year and hate to see it go,had to spend 8 times my asking price for improvement in sound. Will try to post pictures my son usually helps with posting pictures. I have both monolithic boxes and umbilical cord. You can call if you like 318-623-1400, thanks for looking Paul long time member Audiogon under username paulcreed.