TDIBLOX is a consumer to pro interface. It converts input from consumer grade equipment (tape decks or CD players) to a mic level balanced output. Gives operator volume control of the outgoing stereo signal. RCA male inputs and XLR male output.Self-contained unit converts input from consumer grade equipment to a mic level balanced output.Operator volume control of outgoing stereo signal.RCA male inputs and XLR male output.Perfect size for your toolbox or even a shirt pocket.Black powdercoated aluminum chassis.Hand soldered connectors.Approximate size: 3-1/2'' x 1-1/4'' x 1''.Some BLOX may be slightly larger due to LEDs, switches, knobs, etc.The following is a list of connectors on this item:(1) XLRM: Male panel mount connector.(2) RCA: Males wired on tail.(1) Potentiometer: Volume control with knob.(1) DBT: Transformer.