Universal Audio 710 Twin-Finity, 1-Channel Preamplifier, Mic / Line / DI with double signal path (Class-A tube and transimpedance solid state), Phase-aligned Twin-Finity blending (tube / solid state), Balanced output stage, 70 dB + gain, + 48V Phantom power, Pad (- 15dB) phase reversal and low-cut filter (75Hz), Illuminated VU meter, High-impedance input on the front (switched from mic/line), XLR microphone input on the rear, XLR line input and XLR line output, Internal power supply, Includes 19"" rack kit