aussievintage Posted September 29, 2019 Posted September 29, 2019 This started with thoughts of headphone amps. I realised I have this Yamaha Audiogram 6 device. A small mixer with USB audio. Should be well made being from Yamaha. I was glad to be able to download a full service manual and schematics, and what I am seeing looks like fertile ground for use as a headphone amp, DAC and general audio interface for hifi, not just for guitars and microphones in the studio. Looks well made The USB audio chip is a PCM2904. Headphones and outputs from NJM4580L opamps. Extensive use of BA4560RF opamps elsewhere. A block diagram The headphone out section A pic of the device
Recommended Posts