The perfect place to put your rack mounted effects unit, or rack-mountable amplifier heads. When it comes to gigging, touring, or even rehearsing, this amp rack will make life much easier. Being four units high, it lets you stack your rack mountable items into a space the size and finish of a traditional amplifier head. Featuring a standard 19" width for mounting slots, this rack is perfect for virtually any model, including Kemper Profiling Heads, Fractal Audio Axe-FX, Bias Heads, Line6 Helix and HD series, as well as many more. The setup includes 1U solid and 1U vented blank panels for use with a 3U device, or to act as spacing between units for added ventilation. With its black Tolex finish for a sleek, seamless aesthetic to match your cabinet, and built to a professional standard for use at home, the studio or on the road, the Subzero 4U Rack Head will never let you down.