Universal Audio SOLO/610 Classic Tube Preamplifier and DI Box

SOLO/610 is the Putnam 610 console preamp and DI in a small steel chassis, built around one 12AX7 and one 12AT7. Gain, Level and impedance selection are separate controls, so the same source can be run clean or pushed into the tube stage without changing the output level.

The mic input switches between 450 ohms and 1.6 kilohms, the DI between 2.2 megohms and 50 kilohms, and maximum gain is 61 dB. DI features include a Thru jack and a mic or line level output, which is what makes it as useful on stage as on a desktop. Hand-built in the USA with a one-year limited warranty.

Type	All-tube mic preamplifier and DI
Tube Complement	One 12AX7, one 12AT7
Mic Input Impedance	Selectable 450 ohms or 1.6 kilohms
DI Input Impedance	Selectable 2.2 megohms or 50 kilohms
Maximum Gain	61 dB
Frequency Response	20 Hz to 20 kHz, +/-0.1 dB (mic and instrument in)
Dimensions	14 in L x 5.75 in W x 5 in H
Weight	9 lbs