Electro Voice Stereo Amplifier PA4150 User Manual

PA4150L  
Four-Channel  
PowerAmplifier  
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  
Technical Specifications:  
Number of Channels  
4
PhoenixType Inputs  
Load Impedance  
8 Ohm  
100W  
4 Ohm  
160W  
Phoenix Type Outputs  
Rated Output Power (*Rated Load)  
THD<1%, 1kHz  
High Efficiency Circuit Design  
Front Panel Power On/Off  
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  
>250  
Damping factor, at 100Hz / 1kHz,  
4 Ohm  
General Description:  
Power Bandwidth THD=1%, Ref.  
1kHz, Half Power  
>10Hz - >50kHz  
>20kOhm  
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.  
Input Impedance, 20Hz ... 20kHz,  
Balanced  
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  
DIM30, 3.15kHz, 15kHz  
<0.1%  
<0.1%  
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.  
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"  
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.  
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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