This is the Behringer System 100 305 EQ/MIXER/OUTPUT Module. A parametric EQ, mixer/oscillator and headphone amp combo that’s an authentic reproduction of the original “System 100M” circuitry from the 80s that can fit in a standard Eurorack case.

• Combination of amazing parametric EQ, mixer/oscillator and headphone amplifier module from the early '80s
• Authentic reproduction of original "System 100M*" circuitry
• 4-channel EQ section with level, bandwidth and frequency controls plus direct out for maximum flexibility
• 4-input mono mixer with pan and 2 adjustable mono/stereo master outputs