The Rack Kit from Aphex is specifically for the 120A Distribution Amplifier, 124A Audio Level Interface and 141 Digital to Analog Converter.
Rack mounting one or two units side by side in one rack space is easily accomplished with this rack mounting kit. Complete instructions, as well as screws & nuts are included with the kit.
Consists of two rack ears and joiner hardware for mounting two in one rack unit; an L bracket and a flat plate are also included for mounting as a single unit