Ashly FTX-1001 - Manual (Page 12)

Operating Manual - FTX-1001, FTX-1501, FTX-2001, CFT-1800 Power Amplifier
12
(Parallel mono switch in, channel 1 input used, both level controls used, both outputs used)
9. TYPICAL APPLICATIONS
9.1 Stereo Operation
9.2 Parallel Mono Operation
(Both switches out, both inputs used, both level controls used, both outputs used)