Owner’s Manual TSD-ML22VCA 2x2 Mic/Line Preamp & VCA TSD-ML22VCA 2x2 Mic/Line Preamp & VCA 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 –1– Specifications are subject to change without notice. AtlasSound.
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Description The Atlas Sound TSD-ML22VCA is a 2 input, 2 output true VCA with enhanced features including a high quality microphone pre amplifier. VCA’s inserted prior to amplification provides a far more efficient solution than transformer-based attenuators for volume adjustment in high power music applications.
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Front Panel Description 6 6 4 5 3 6 6 1 2 1. Input 1-2 Level Controls - Adjusts the gain of the independent input signals. Turn clockwise to increase the signal level and counter-clockwise to decrease it. Note: The Input Level Control knobs can be removed and replaced with a supplied security cover to prevent unauthorized adjustment. 2. Output 1-2 Level Conrols - Adjusts the gain of the independent output signals.
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Rear Panel Description 5 5 5 5 1 2 3 TSD Input/Output connections are removable for easy system wiring. The connector has a 3.5mm pitch between pins. 1. DC Power Input - Each TSD that requires DC power comes with a 2 position connector for an external 24VDC power supply (sold separately). Because of the TSD’s low power consumption, a single external power supply may power more than one TSD.
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Dip Switch Function Identification SWITCH FUNCTIONS Switch Position • DIP SW # 1 - 24VDC Phantom Power applies power for condenser mic operation. Down position is On. • DIP SW # 2 - Input Mic or Line Select for input gain selection. Up position is Line, down position is Microphone. • DIP SW # 3 - Low Cut Filter engages at 125Hz with a roll off rate of 12dB per octave.
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Block Diagram INPUT 1 FUNCTION SET 1 2 3 4 PHANTOM INPUT MIC LOW CUT OUTPUT OFF LINE OFF LINE ON MIC ON MIC 1 2 3 4 MIC/LINE MIC/LINE LOW CUT 125Hz -12dB + INPUT 1 – G + CHANNEL 1 – OUTPUT G VCA PEAK SIGNAL INPUT 1 LEVEL OUTPUT 1 LEVEL INPUT 2 FUNCTION SET 1 2 3 4 PHANTOM INPUT MIC LOW CUT OUTPUT OFF LINE OFF LINE ON MIC ON MIC FROM VCA CTRL 10V DC 1 2 3 4 DC 10V OUT (20mA MAX) CHANNEL 1 VCA CTRL CHANNEL 2 VCA
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Outputs Type Connection Impedance Line Output Level Mic Output Level Controls Input Level Control Output Level Control VCA Control Port Dip Switch Function Indicators Input Signal Input Peak Power Electrical Frequency Response THD Signal to Noise Qty 2, Balanced Mic or Line Selectable Removable 3 Position Captive Screw 3.
TSD-ML22VCA 2x2 Mic/Line Preamp & VCA Owner’s Manual Limited Warranty All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or commercial purchaser to be free from defects in material and workmanship and to be in compliance with our published specifications, if any.
