hifi engine


alvinj's picture

i am currently repairing a Cyrus mission pre-amp. the pre-amp comes with it own separate power amp the only marking on the pre-amp front case. which says Cyrus pre. on the pcbs inside the preamp. there is a marking HA7L. on the back of the pre-amp its says mission Cyrus. is there a schematic out there for this equipment. what model and series is that. the output of the pre-amp is xlr and rca. the input is all so xlr and rca