Micromixer - Stavblender Henry Engineering - Gratis brugsanvisning og manual

BRUGSANVISNING Micromixer Henry Engineering

DESCRIPTION

MICROMIXER is a four-input, two-output stereo mixer/combiner for utility use. The unit has balanced bridging inputs for four audio sources (two stereo pairs) which can be mixed to two outputs (one stereo pair). A level control is provided for each input. Selectable 'assign' switching permits any input to be fed to either or both outputs. DC coupled circuitry provides excellent sonic performance.

INSTALLATION

All connections to the MicroMixer are made via plug-in connectors. Remove about 1/8" of insulator, insert wires into the plug, and tighten the screws. Be sure that no bare wires are exposed.

Audio inputs to the MicroMixer should be connected to the balanced input terminals labeled 1, 2, 3, and 4. For unbalanced inputs, install a jumper between the (-) terminal and G (ground). All inputs are bridging; it is not necessary to terminate the source unless required by the source equipment.

Audio outputs from the MicroMixer are connected to the two outputs labeled L (Left) and R (Right). The output circuitry will drive any load of 600 ohms or higher. It is not necessary to terminate the outputs. For unbalanced outputs, connect to the (+) and G terminals only. DO NOT short the (-) terminal to ground.

OPERATION

The input levels to the MicroMixer should be between -10 and +8 dBm. Adjust each input channel using the INPUT LEVEL controls. Unity gain is achieved with these controls set to 10 o'clock; with nominal input levels of +4 dBm the Input Level controls should be run near this setting. It is recommended that input levels be initially set with a level indicator (VU meter, scope, VOM) temporarily connected to the MicroMixer's output to monitor output levels. The average output level should not exceed +8 dBm to ensure adequate headroom.

Each output channel (L & R) has four ASSIGN switches that determine which of the four input signals are fed to that output. Select the input sources desired by switching the appropriate channels ON (down). For example, if inputs 1 and 3 should be fed to the LEFT output, set Left output assign switches 1 and 3 ON, with 2 and 4 OFF.

SPECIFICATIONS

INPUTS -10 to +8 dBm; balanced 20K or unbalanced 10K

GAIN 10 dB maximum

OUTPUTS +4 dBm nominal, +26 dBm max; 600 ohms or higher, 4X

FREQ RESP DC to 20 kHz, +/- 0.25 Db

NOISE 80 dB below +4 dBm output

DISTORTION .008% IM/THD

HENRY ENGINEERING503 Key Vista DriveSierra Madre, CA 91024 USAtelphone - [phone]FAX [phone]
TitleSCHEMATIC: MICROMIXER
Size Document Number RevB 3510 A
Date: Sheet:		1 of 1