The Universal Audio SOLO/610 Classic Tube Preamplifier & DI Box is a compact rugged interface that provides the All-Tube 610 Console Mic Preamp sound. With its compact design the SOLO/610 preamplifier is highly portable and ideal for both in the studio and on stage. Providing the silky vintage warmth of the originals mic amp design the Universal Audio preamplifier and DI box enhances any microphone or instrument that is plugged in giving you the legendary tube preamplifier tone. Convenient Design Boasting a rugged versatile design the SOLO/610 provides the classic Putnam 610 tube console sound. Conveniently you can use the SOLO/610 in the control room or the recording room on stage or on a desktop a compact yet sonically impressive interface provides the character of the 610 console at an affordable price. Many Features The SOLO/610 features Mic and DI inputs along with Gain and Level control for a wide variety of clean to coloured tones. This version has a continuous Gain control with even greater range letting you structure gain with precision – doubling as input signal padding. The SOLO/610 of course features the essentials: 48v Phantom Power Lo-Cut filtering Phase Reverse and flexible dual impedance selection for both Mic and DI inputs. It also has essential DI features like Thru use in conjunction with an amplifier plus Ground Lift and a versatile Mic/Line level output switch. Features Classic Putnam 610 console mic preamplifier and DI Legendary all-tube sound at a project studio price Gain Level and Impedance selection for maximum tonal variety Portable design for studio desktop or stage Rugged construction-steel chassis DI features include Thru and Mic/Line level output Specifications Properties: Input Impedance: Mic Input: Selectable 450 ohms (Lo-Z) or 1.6 kilohms (Hi-Z) DI Input: Selectable 2.2 megohms (Lo-Z) or 50 kilohms (Hi-Z) Output Load Impedance: 20 Hz to 20 kHz +/- 1 dB Maximum Gain: 61 dB Tube Complement: (1) 12AX7 (1) 12AT7 Maximum Mic Input Level: -12 dBu 1.0 THD+N Ratio Maximum Instrument Input Level: +4 dBu 1.0 THD+N Ratio Maximum Gain Mic Input: 55 dB (1.6K ohm input) 60 dB (450 ohm input) Mic/Instrument In Frequency Response: 20 Hz to 20 kHz +/- 0.1 dB Maximum Gain Instrument Input: 37 dB Physical Specs Dimensions: Length: 14″ Width: 5 3/4″ Height: 5″ Weight: 9 lbs.