★Universal Audio / 6176 This vintage-style channel strip combines a tube-equipped 610 mic preamp designed by Bill Putnam Sr. with a classic 1176LN-style compressor. Each preamp can be connected in series or used independently in split mode. The mic preamp section supports a wide range of impedances, and features shelving EQ (high and low) for versatile coloring. Artists like Norah Jones and Coldplay's Chris Martin are particularly fond of the sound of this model. Handmade in the USA. compressor Input gain, Output gain, Attack, Release, Compression ratio 1:1, 4:1, 8:1, 12:1, 20:1, ●All button mode ●Meter select ●Compressor gain reduction, compressor out, preamp out Preamplifier ● Microphone input impedance: 500Ω, 2KΩ Balanced line input impedance: 13.8kΩ Hi-Z Input Impedance: 2.2 MegΩ, 47 kΩ HF Shelf EQ: Boost/Cut Level: 1.5, 3, 4.5, 6, 9 dB Corner frequencies: 4.5kHz, 7kHz, 10kHz LF Shelf EQ Boost/Cut Level: 1.5, 3, 4.5, 6, 9dB Corner frequency: 70Hz, 100Hz, 200Hz Polarity inversion switch. JOIN/SPLIT switch. Split mode allows the preamp and compressor sections to be used independently, or in combination with the join mode switch. Overall part ● Vacuum tube: 12AX7A, 6072A ●Size: 483W x 89H x 310D mm / 5.1 kg ● Stereo use possible with the 1176SA stereo adapter (sold separately) *This product is basically made to order, so delivery may take approximately 1 to 3 months.