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™
PZS 140
Multi-Zone Mixer/Amplifier
®
®
ARCHITECTURAL ACOUSTICS
OWNER’S MANUAL
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Intended to alert the user to the presence of uninsulated Òdangerous voltageÓ within the productÕs 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 Ñ DO NOT OPEN! CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside.
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ª PZS 140 Multi-Zone Mixer/Amplifier DESCRIPTION: ª The Peavey Architectural Acoustics PZS 140 is a five-channel mixing system with assign- ment capability to four independent powered zones. Each channel offers low and high equalization, channel level control, and zone assignment switching. Channels one and two offer low-Z (XLR) microphone inputs for paging capability, while channels three through five offer dual (paralleled) RCA jacks for use with various music sources. All five channels also h
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FRONT PANEL: 7 8 9 3 12 2 4 4 5 5 6 1 10 11 14 13 FRONT PANEL FEATURES: 1. CHANNEL LEVEL CONTROLS Controls the signal level being sent to the assigned zones from each channel. 2. CHANNEL LOW EQ CONTROL (BASS) Active shelving type equalization control that adjusts the channel low-frequency response. Clockwise rotation boosts low frequencies while counter-clockwise rotation reduces low frequencies. 3. CHANNEL HIGH EQ CONTROL (TREBLE) Active shelving type equalization control that adjusts the c
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7. CHANNEL 1 ZONE ASSIGNMENT SWITCHES Switches used to route the signal to the desired zone. OPERATION NOTE: Anytime channel one is assigned to a zone and a signal is present in channel one all other channels assigned to that zone will be ducked by 20 dB. This enables channel one to be used for emergency override signals. This function can be disabled by turning the threshold control completely counter-clockwise. 8. CHANNEL 2 ZONE ASSIGNMENT SWITCHES Switches used to route the signal to the
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BACK PANEL: 20 15 16 17 21 18 22 19 25 25 24 26 26 23 BACK PANEL FEATURES: 15. FUSE The fuse is located within the cap of fuseholder. If the fuse should fail, IT MUST BE REPLACED WITH ONE OF THE SAME TYPE AND VALUE IN ORDER TO AVOID DAMAGE TO THE EQUIPMENT AND TO PREVENT VOIDING THE WARRANTY. If the amp repeatly blows fuses, it should be taken to a qualified service for repair. WARNING: THE FUSE SHOULD ONLY BE REPLACED WHEN THE POWER CORD HAS BEEN DISCONNECTED FROM ITS POWER SOURCE. 16. AC
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OPERATION NOTE: 48 volt phantom power is always available on the + and - pins with reference to ground. 19. CHANNEL 1 and 2 HI-Z INPUT Normal high-Z line input for cables without connectors. This high-Z input can be used for normal high impedance unbalanced microphones or other line level feeds. For a balanced application, two conductor shielded cables should be wired as follows: Cable shield- ground Conductor 1- Hi-Z positive Conductor 2- Hi-Z negative. Notice the ground terminal is shared
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23. ZONE LOOP OUT/IN A send/return patch point for external effects or EQ. The loop out terminals are line level preamp outputs following the master level stages of each zone. The Loop In terminals are line level power amplifier input points for each zone power amp. Both the Loop Out and Loop In are unbalanced signals requiring only a single conductor shielded cable for patching to the external device. Wire the cables as follows: Cable shield- ground Cable conductor-out (or in) SEE DRAWING
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ª PZS 140 SPECIFICATIONS POWER OUTPUT: Line Inputs: 90 dB below rated power 35 W RMS per channel @ less than 1% (controls nominal,2k ½ terminated) (60 Hz to 20 kHz with all four channels Mic Inputs: 82 dB below rated power operating) (controls nominal 150 ½ terminated) OUTPUTS: 4 ½ (direct), 8 ½, 25 V and 70 V (isolated) TONE CONTROLS: Low EQ: +10, -10 dB @ 100 Hz CHANNEL 1 and 2 INPUTS: High EQ: +10, -10 dB @ 10 kHz Mic: 2k ½, -54 dBu, (1.5 mV, balanced) Line: >50k ½, -18 dBu, (100 mV, CONTR
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10 ª PZS 140 Level Diagram Clip LED ZONE ONE Effects Loop Power AMP 35 Watts RMS Outputs Mic Input Assignment Switches Signal LED Outputs Link Switch X-Former XLR Mic Preamp Level Two Band EQ CHANNEL ONE Clip LED ZONE TWO Effects Loop Power AMP Outputs 35 Watts RMS Signal LED Output Link Switch X-Former Mic Input Assignment Switches Clip LED ZONE THREE XLR Mic Preamp Level Two Band EQ Effects Loop Power AMP 35 Watts RMS Signal LED CHANNEL TWO Output X-Former Link Switch Clip LED ZONE FOUR Assign
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POSITIVE (+) POSITIVE (+) POSITIVE (+) POSITIVE (+) ª PZS -140 External Power Amp and Effect Patches Output Quarter Inch Plug + = tip - = sleeve = sleeve ª PZS 140 XLR Input Balanced or Unbalanced Pin 1 = Pin 2 = + Pin 3 = - ª PZS 140 Switch Out Input ª PZS 140 Output ª CEQ 280a 11
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12 Typical Small Music/Paging System ª PVM 22 Tape player CD player 25V Wiring 70V Wiring 25V 70V 4W 10W 15W 35W 25V 70V 10W 15W 8W 35W 25V 70V 10W 5W
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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.) ÒOriginal purchaserÓ means the customer for whom the product is originally installed. Damage result
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Notes: 14
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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, swimmin
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¨ ARCHITECTURAL ACOUSTICS Features and specifications subject to change without notice. A Division of Peavey Electronics Corporations 711 A Street / Meridian, MS 39301 / U.S.A. / (601) 486-1678 Fax (601) 486-1154 .www.peavey.com ©1998 Printed in U.S.A. 7/98 80304445
