Commercial 4 channel power amplifier – 4 x 160W @ 4ohm
Key Features:
•               4 x 160W at 4 Ohms

•               2 U Rack Space Chassis

•               Rear Level Controls

•           Bridge Mode Operation Provides


2 x 315W at 8 Ohms

•               Complete Protection Package

•               Selectable 50Hz or 300Hz Hi-Pass Filter for each Channel

•               Phoenix Type Inputs

•               Phoenix Type Outputs

•               High Efficiency Circuit Design

•               Front Panel Power On/Off


General Description:
The Electro-Voice® PA4150 is from the PA series of professional commercial audio amplifiers. The direct path airflow design reduces the heat buildup significantly and allows for 4 full amplifier channels in a slim two rack space chassis. The audio performance of the PA4150 is superior and fulfills the requirements in many demanding long term applications from sound reinforcement, paging or life safety installations.
The PA4150 features many of the same comprehensive protection circuits typical in EV amplifiers. Complete protection is provided for high temperature, audio limiters, power up delay and peak current limiters. In addition to the rated output power, the PA4150 provides excellent headroom for a wide dynamic range on music signals. A selectable 50Hz or 300Hz hi-Pass filter makes it easy to incorporate the unit into The onboard dynamic limiter ensures that the output clipping of the PA4150 will not will not generate excessive distortion. The amplifier channels can be bridged for more power flexibility.
Marked level controls on the rear panel provide hidden reliable level adjustments for each channel. Front panel LEDs indicate signal present, 0 dB, and limit. Phoenix type connectors for inputs and outputs provide an easy rack wiring.
Technical Specifications:
Number of Channels 4
Load Impedance 8 Ohm 4 Ohm
Rated Output Power (*Rated Load) THD<1%, 1kHz 100W 160W
Rated Output Power (*Rated Load) THD<0.2%, 20Hz…20kHz 75W 150W
Slew Rate at 1kHz 16V/µs
Frequency Response, -1dB, Ref. 1kHz <10Hz -40kHz
Damping factor, at 100Hz / 1kHz, 4 Ohm >250
Power Bandwidth THD=1%, Ref. 1kHz, Half Power >10Hz ->50kHz
Input Impedance, 20Hz … 20kHz, Balanced >20kOhm
Signal-to-Noise Ratio, A-Weighted 100 dB
Input Sensitivity at Rated Output Power or Voltage, 1kHz 0dBu (775mV)
THD at rated output power, MBW=80kHz, 1kHz <0.1%
IMD-SMPTE, 60Hz, 7kHz <0.1%
DIM30, 3.15kHz, 15kHz <0.1%
Crosstalk, Ref. 1kHz, at 10% Rated Output Power <-75 dB
Power Requirements 120V or 230V, 50Hz ­60Hz
Protection Audio Limiters High Temperature Peak Current Limiters Turn-On Delay
Cooling Front-to-Rear
Dimensions (W x H x D), mm 483 x 88 x 406mm (2Ru) 19″ x 3.5″ x 16″
Weight 18kg (39.65lbs)
Low Impedance Outputs:
•                Min. Rated Load for Single Channel Operation is 4 Ohms. 2 Ohm Load is Not Recommended.

Min. Rated Load for Bridged Operation is 8 Ohms. 4 Ohm Load is Not Recommended.

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