Solidsteel Hyperspike HY Extra Shelf / Top Shelf / L Shelf Speaker Accessories to dramatically reduce/silence transformer hum

to dramatically reduce/silence transformer hum

Not volume control chips

short-circuit detection

the HPA4 includes a total of 64 precision relays

Solidsteel Hyperspike HY Extra Shelf / Top Shelf / L Shelf Speaker Accessories to dramatically reduce/silence transformer humAdd another shelf to your Solidsteel HY Series hi fi rack. Extra Shelf Kit for HY Rack This kit adds another shelf to your modular HY series hi fi rack, allowing you to expand it to your needs. The HY series of racks can be stacked in a multitude of ways; insert this extra shelf anywhere between the top and bottom shelf of your rack, and enjoy a piece of furniture that is constructed exactly how you need it. Key Features: Choice of shelf height: 145,