Dual Channel compressor limiter gate. This product includes a variable threshold, ratio, attack and release controls. Brand new - NEW OLD STOCK - This was discovered on a shelf of an old Rolls distributor. 

FEATURES:
• XLR and 1/4" Inputs and Outputs
• Side Chain Inputs and Outputs
• -10, +4 Line Switch

TECHNICAL SPECIFICATIONS:
• Input Impedance: 10k Ohms balanced
• Max Input Level: +15dBu
• THD: .05% typical
• Threshold range: -40dBu to +12dBu
• Attack Time: 0.2 - 10ms.
• Release Time: 40 - 2000dB/S
• Compression Ratio: 1:1 - infinity:1
• Gate Threshold: -55 to +2dB, and Off.
• Output Gain: 0 - +20dB
• Dimensions: 1.75" x 6" x 19" (44mm x 152mm 483mm)

Thanks for looking!