The Emotiva HC-1 was specifically designed with a narrow footprint so that multiple HC-1 amplifiers can be placed or mounted side by side. The HCRE-1 Chassis Coupler kit allows you to securely couple a pair of HC-1 amps together into a single assembly which fits in a standard 19” rack width mounting space.
The HCRE-1 + Rack Ears kit was designed to enable you to mount a pair of HC-1 amplifiers in a standard 19” equipment rack. This kit includes the dedicated 4RU rack ears plus the needed HCRE-1 Chassis Coupler.
All necessary hardware is included in the kits.