Radial Engineering ProDI Passive Direct Box Hot Deals The 550A provides reciprocal equalization

The 550A provides reciprocal equalization at 21 points in 5 steps of boost to a maximum of 12dB of gain at each point

Rickenbacker 4003 Bass Maple Glo Natural with Case

The headphones have a self-adjusting headband

or EQ units

Radial Engineering ProDI Passive Direct Box Hot Deals The 550A provides reciprocal equalizationThe Radial ProDI is a passive direct box that combines exceptional audio performance with solid dependable construction, making it the ideal general duty direct box for stage and studio. The heart of the ProDI is a custom wound Radial transformer. It features an exceptionally high 140k input impedance to reduce loading while enabling the ProDI to handle extreme signal levels at all frequencies without distortion. This is further improved upon with an