Henry Engineering USDA-2X4

U.S.D.A. (Utility Summing & Distribution Amplifier) is a unique 2x4 mini-DA that can be used to combine or split audio signals for distribution. It can be used as a 1x4 or 2x4 DA in stereo or mono.

There are 2 inputs (1 stereo pair) and 4 outputs (2 stereo pairs). Front panel “Stereo/Mono” switches select either a stereo or mono output from each output pair. USDA can produce both stereo and mono outputs simultaneously from a stereo source. Inputs and outputs can be operated either balanced or unbalanced. The audio level of each output can be adjusted over a 26db range. All circuitry is transformerless and direct-coupled for sonic accuracy.

Connections are via plug-in euroblock connectors. USDA 2X4 is 1/3 rack width and can be mounted in an optional rack shelf, or wall mounted with optional wall/cabinet mounting brackets. USDA 2X4 is powered by an internal AC power supply.

• Input Level: -14 to +8 dBm nominal
• Input Impedance: 20K ohms bal, 10K ohms unbal
• Output Level: 0 to +8 dBm nominal, +26 dBm max
• Output Load: 600 ohms or higher per output, bal
• Controls: Output Level for each channel
• Gain: -12 to +14 dB
• Frequency Response: DC to 20kHz, ±0.25 dB
• Distortion: <.01% IM/THD
• Noise: >80 dB below nominal output, typ
• Power Requirements: 115/230VAC, 50/60Hz, 3 W
• Construction: Steel enclosure
• Dimensions: 5.7” W x 1.7” H x 6.0” D
• Weight: 3 lbs.
• Mounting: Table top, optional rack mount shelf, optional wall/cabinet mounting brackets