Shure SR109 free download

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SR109 Professional Mixer OPERATION AND SERVICE MANUAL Manufactured by SHURE BROTHERS INC. 222 Hartrey Avenue Evanston, Illinois 60204 U.S.A. WARNING To reduce the risk o f fire or electric shock, d o not expose this appliance t o rain o r extreme moisture. Copyright 1979, Shure Brothers Inc. 27A1413 (SG) Printed in U.S.A. SR109 Professional Mixer SPECIFICATIONS Equipment Type . . . . . . . All silicon transistor mixer/preamplifier Signal to Noise (20 Hz-20 kHz) . . . . . .Typically Number of lnput Channels Power Output Voltage Gain * Program - ... . 8 . . . . . . . . . +19 dBm (program line level) 83 dB at maximum output with one channel Volume Control and MASTER Volume Control set at 8 (approximately 58 dB gain) . . . . . . .87 -13 dB MIC input to LlNE LEVEL out 37 -+3 dB LlNE input to LlNE LEVEL out 37 -13 dB MIC input to MIC LEVEL out Headphones Link . . . .69 -13 out dB MIC input to PHONES . . . . .. . . . . .54.5 k 3 dB MIC input to LlNK OUTPUT (with 600-ohm termination) 27 k 2 dB LlNK INPUT to LlNE LEVEL output lnput Attenuation . . . . . . 0, 15 dB (switch-selected) lnput Clipping Level at 1 kHz: MIC lnput . . . . . . . . 100 mV (ATTENUATOR out; Ch. Volume at 2) 4.5 mV (ATTENUATOR out; Ch. Volume at 12) 0.56V (ATTENUATOR in; Ch. Volume at 2) 25 mV (ATTENUATOR in; Ch. Volume at 12) LlNE lnput . . . . . . . .33V (ATTENUATOR out; Accessory . . . . . .59 t 3 dB MIC input to ACCESSORY output (via pins 1-8/INPUTS) 54.5 k 3 dB MIC input to ACCESSORY output (via pin 9/PROGRAM) (terminated with 600 ohms) Ch. ume at 2) 1.35V (ATTENUATOR out; Volume at 12) 90V (ATTENUATOR in; Ch. ume at 2) 8.OV (ATTENUATOR in; Ch. ume at 12) VolCh. VolVol- Frequency Response . . . k 3 dB, 20 Hz-20 kHz (150-ohm source; 600-ohm load) lnput Sensitivity Distortion lnput Common Mode Rejection . . . . . I 0 0 dB at 100 Hz . . . . . . .0.1 mV max. for +4 dBm program output Low-Frequency Equalization . . . . . . . . 2 1 3 dB at 100 Hz with respect to 0 (flat) setting High-Frequency Equalization . . . . . . . . 2 1 2 dB at 10 kHz with respect to 0 (flat) setting Tone Oscillator . . . . . . . . . . . .THD less than 1% at +12 dBm, 30 Hz-20 kHz; IM distortion less than 1% at +12 dBm Noise (300 Hz-20 kHz) . . . . . . . . . .. . . 1 - 128 dBV (equivalent input noise at full gain) -72.8 dBm output noise (MASTER Volume Control down) -38.8 dBm output noise (MASTER and one channel Volume Control up) lnput Impedance at 1 kHz: Microphone kHz; less than 1% distortion; variable level Hum and Noise (20 Hz-20 kHz) . . . . . . - 125 dBV (equivalent input hum and noise at full gain) -61.8 dBm output noise (MASTER Volume Control down) -34.8 dBm output noise (MASTER and one channel Volume Control up) 25- to 600-ohm microphones) Line (channels 7 and 8) . . . . . . . . . 66 kilohms balanced bridging Link lnput . . . . .35 kilohms unbalanced . . . .2.1 kilohms balanced (for use with . Output Impedance: Program . . .. . . .Balanced line level: 120 o