OWNER’S MANUAL CPS 1 / CPS 2 CONTRACTOR PRECISION SERIES
CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Specifications . . . . . . . . . . . . . . . . . . . . .
DESCRIPTION DESCRIPTION First of all, we would like to express our thanks and at the same time congratulate you on the decision to buy one of our CONTRACTOR PRECISION SERIES power amplifiers. ElectroVoice CONTRACTOR PRECISION SERIES amplifiers are made to meet the highest requirements of any CONTRACTOR application. Thus they provide on-board protection against thermal and capacitive overload, short-circuit and the occurrence of HF or DC at the output.
FRONT PANEL 1. LIMIT This indicator lights when the amplifier enters clipping and the internal limiter is activated. Short-term indication is permissible while a continuous lit LED signals that reducing the overall volume is recommended to avoid the connected loudspeaker systems from being damaged by overload conditions. 2. SIGNAL INDICATOR This indicator lights when an output signal is present.
REAR PANEL POWER AMPLIFIER INPUTS “PHOENIX”-type connectors are provided parallel to the XLR-type inputs, offering the opportunity to feed additional power amplifiers with identical signals. The inputs are electronically balanced with pin-assignment according to the IEC 268 standard. Pin-assignment of the XLR-type input connectors: PIN 1: PIN 2: PIN 3: SHIELD a, + b, - Pin-assignment of the “PHOENIX”type connectors: Input sensitivity is factory set to 1Vrms.
REAR PANEL POWER AMPLIFIER OUTPUTS The power amplifier’s channel A (left) and channel B (right) outputs are carried out on 4-POLE-BARRIER-STRIP connectors. Please, mind the correct polarity when connecting loudspeaker systems, according to the shown diagram for the DUAL OUTPUT. Dangerously high voltages may be present at the binding posts, which, after establishing loudspeaker cable connections, makes closing the terminal strip’s cover lid absolutely mandatory.
SPECIFICATIONS Technical Specifications: CPS1, CPS2 Amplifier at rated conditions, both channels driven with 8 ohms loads, unless otherwise specified. CPS1 CPS2 Load Impedance 8Ω 4Ω 2Ω 8Ω 4Ω 2Ω Maximum Midband Output Power THD=1%, 1kHz 280W 450W 650W 380W 600W 850W Rated Output Power THD < 0, 2%, 20Hz ...
BLOCK DIAGRAM 20
ABMESSUNGEN/DIMENSIONS Abmessungen/Dimensions (in mm) 21
