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IRM 8150
Powered Mixer
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Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. CAUTION: Risk of electrical shock – DO NOT OPEN! CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. R
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CHANNEL SECTION: LEVEL (1) Controls the channel output level. This signal is routed via the main bus to the main level control. The channel level also affects the signal to the AUX send control. MONITOR (MON.) (2) Controls the channel monitor mix level. This is independent of all other channel controls. Controls the amount of signal from a particular channel in the monitor mix. This signal is routed to the Mon. control in the master section. LOW EQ (3) Controls the channel low EQ level. An activ
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AUX SEND (6) Controls the channel AUX drive level. This signal is routed to the AUX master control, where AUX send signals from all channels are summed together. Controls amount of send from a particular channel to AUX output. The channel level control also affects the signal from the AUX send. MASTER SECTION: POWER INDICATOR: PILOT LIGHT LED (7) Illuminates when AC power is being supplied to the amp. 9-BAND GRAPHIC EQ (8) Provides +6 dB, -12 dB equalization at each center frequency. EQ boost is
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TAPE/AUX TO MON (14) Controls the level of tape or AUX IN signal to be sent to the mon. bus. This signal will be mixed with channel monitor signals. TAPE OUT/TAPE IN: CAUTION Before placing connected tape decks in the "record" mode, set the TAPE/AUX IN level control to "0" or off. Most tape decks feed the input signal directly to the output when in record mode. This creates a "closed loop" condition from the tape out to tape in jack which can affect the operational level or sonic quality of the
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LINE INPUT JACK (18) For use with line level signal or compatible high Z microphones equipped with a 1/4" phone plug. NOTE: These input jacks (17 & 18) are typical of each channel. It is possible to use both the mic and line inputs on a single channel simultaneously. It is, however, unlikely that the gain matching of the mic and line will allow this hookup to be useful. This practice is not recommended. PHANTOM POWER ON/OFF (19) This switch selects phantom power "ON" or "OFF" for all channels. P
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VENT VOIDING THE WARRANTY. If the amp repeatedly blows fuses, it should be taken to a qualified service center for repair. WARNING: THE FUSE SHOULD ONLY BE REPLACED WHEN THE POWER CORD HAS BEEN DISCONNECTED FROM ITS POWER SOURCE. POWER SWITCH (28) Center position is OFF. Two ON positions are provided, one of which will properly ground the amplifier. Switch to the ON side that yields the lowest amount of residual hum or popping noise when the instrument is touched. 220 and 240 volt models have a
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Maximum Channel Gain: SPECIFICATIONS Low Z = 40 dB Line = 20 dB NOTE: All specifications are typical unless otherwise noted. Nominal Input Level: Low Z = -20 dBV 0 dBV = 1 volt RMS Line = 0 dBV 0 dBu = .778 volts RMS Minimum Input Level: All specs are referenced to nominal output level Low Z = -40 dBV (0 dBV) unless otherwise noted. Line = -20 dBV All measurements are wideband 20 Hz to 20 kHz Maximum Input Level: unless otherwise stated. Low Z = +6 dB All control sett
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Output Impedance: POWER AMP SECTION 100 ohms Frequency Response: MASTER +0, -1 dB 20 Hz to 20 kHz @ Rated Power (direct out) +0, -1 dB 50 Hz to 20 kHz @ Rated Power (XFMR Gain: outputs) Main: = 20 dB Monitor: = 15 dB Rated Power: Tape: = 15 dB Direct Out: Aux: = 15 dB 150 watts RMS @ 4 ohms Maximum Output Level: XFMR Outputs: Main: = +18 dBV (8.0 V RMS) 150 watts RMS @ 8 ohms Monitor: = +18 dBV (8.0 V RMS) 150 watts RMS @ 25 V (4 ohms) Tape: = +18 dBV (8.0 V RMS) 150 watts RMS @ 70 V (33
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Balanced (600Ω) COM 8 Ω 25V 70V NC XFMR 4 Ω GND LO HI + Balanced (600Ω) – 8 Ω XFMR 4 Ω GND LO HI – 4 Ω Jumper Installed + Transformer Output to 8Ω Speaker Direct Output to 4Ω Speaker (Note: Jumper must be in place.) Balanced (600Ω) XFMR 4 Ω GND LO HI Jumper Installed To Booster, Amplifier, etc. Balanced Output Connection (Note: Jumper must be in place.) 10
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Balanced (600Ω) XFMR 4 Ω GND LO HI – – 8 Ω 8 Ω + + Direct Output to Multiple Speakers in Parallel. Total Impedance = 4Ω 11
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13 ™ IRM 8150 LEVEL CHART POWER AMP CHANNEL INPUT OUTPUT (+27 dBV) 30 (150 W @ 4 OHMS) MAX (1/4") HEADROOM (+ 26 dBV) (MAIN, MONITOR, MAIN, MON, TAPE, GRAPHIC INPUT/OUTPUT TAPE, AUX) AUX OUTPUTS LEVELS (+19 dBV) (+18 dBV) 20 (+18 dBV) MAXIMUM MAXIMUM NOMINAL +12 dBV +12 dBV TAPE INPUT LEVEL BOOST BOOST CHANNEL INPUT (+11 dBV) MAXIMUM 10 +6 dBV AUX INPUT LEVEL MAX (XLR) MAIN, MON, TAPE, GRAPHIC (+7 dBV) MAXIMUM (+6 dBV) TAPE INPUT LEVEL CHANNEL INPUT CHANNEL CHANNEL AUX OUTPUTS INPUT/OUTPUT GRAPH
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LIMITED WARRANTY Peavey Electronics Corporation warrants to the original purchaser of this new Architectural Acoustics product that it is free from defects in material and workmanship. If within one (1) year from date of purchase a properly installed product proves to be defective and Peavey is notified, Peavey will repair or replace it at no charge. (Note: Batteries and patch cords not covered.) “Original purchaser” means the customer for whom the product is originally installed. Dama
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IMPORTANT SAFETY INSTRUCTIONS WARNING: When using electric products, basic cautions should always be followed, including the following. 1. Read all safety and operating instructions before using this product. 2. All safety and operating instructions should be retained for future reference. 3. Obey all cautions in the operating instructions and on the back of the unit. 4. All operating instructions should be followed. 5. This product should not be used near water, i.e., a bathtub, sink, swimming
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® ARCHITECTURAL ACOUSTICS® Features and specifications subject to change without notice. A Division of Peavey Electronics Corporation 711 A Street / Meridian, MS 39302-2898 / U.S.A. / (601) 483-5376 / Telex 504115 / Fax 486-1278 ©1994 #80302192 Printed in U.S.A. 10/94 16
