Q4 500 Series.
The Q4™ is a unique 500 series equalizer that combines the warmth and detail of a pure class-A circuit with the character of true 100% discrete state-variable filters, with no integrated circuits employed for optimal musicality and signal flow.
• Gold-plated 15-pin card edge with a double-sided design ensures a positive connection to the receptacle for improved mating
• Military-spec circuit board with double-sided design and a full ground plane that assures the lowest possible noise
• Full-size through-hole 100 percent discrete electronics for optimal signal transfer
• Designed to work with the Radial Workhorse 500 Series rack as well as other 500 Series racks
o High: 10kHz
o Hi-Mid: 1kHz - 8kHz
o Lo-Mid: 300Hz - 2.4kHz
o Low: 100Hz