Avalon V55, 2-Channel Microphone / Line / Instrument Class A Preamp, Gain switchable in 2dB steps (- / + 0.15 dB), RE-preamp function, 10 Tone bank choices per channel, Phase reversal at all outputs, Phantom power: +48 V, Variable passive high pass filter, VU meter, Format: 19""/ 2 U, Dimensions (W x H x D): 483 x 88 x 305 mm, Weight: 10.9 kg@+*Connections:*@+@+, 2 Mic inputs: XLR, 2 Line inputs: XLR and 6.3 mm jack, 2 Hi-Z instrument inputs: 6.3 mm jack, 2 Line outputs: XLR and 6.3 mm jack, 2 AMP and Thru connection: 6.3 mm jack, 2 Stereo headphone outputs: 6.3 mm jack