Electro-Voice 7600 - Page 11

Operating and Servicing Instructions for the Electro-Voice 7600 Power Amplifier
(Below rated output power, A-weighting filter, 8 Cl
dual mode, 50/60 Hz ac line frequency)
Amplifier Protection: Shorted output term¬
inals, Over-
temperature, RF
interference
Load Protection: Startup/shutdown
transients, DC faults,
Subsonic signals
Cooling:
Heatsink:
Thermally equalized
3/16 in aluminum black
anodized heatsink, 1 per
channel
Fan:
Thermostatically con¬
trolled dual speed fan.
Approximately 55 CFM
at low speed and 105
CFM at high speed. Ball
bearing fan has mini¬
mum life rating of
50,000 hours at 25 °C
ambient temperature
Output Topology:
True complementary
symmetry with
grounded collectors (no
mica insulators means
better heat transfer)
Output Type:
Dual mode:
Unbalanced, each
channel
Bridge mode:
Balanced
Output Devices:
Total number:
32 devices
Pd max rating:
250 watts
Vceo:
250 volts DC
Ic:
16 amps DC
Tjmax:
200 °C
Controls and Switches:
Rear:
Mode switch
Front:
Two input level
controls, Power switch
Front Panel Indicators: Power LED, Clip LED
(x 2), Protect LED (x 2)
Connections:
Input: Vt” phone (x 2), Female
Output:
XLR (x 2), Octal
accessory socket (x 2),
powered with ±15 volts
DC at 25 ma.
4 terminal barrier strip
3- Neutrik Speakon®
connectors
Power:
4 ft (1.22 m), 3-wire, 14
GA power cord with
NEMA 5-15 plug
Fuse Type:
Littelfuse Type 3AB 10
A/250 V Slo-Blo® 326-
series ceramic cartridge
body, or equivalent
Power Requirements:
120 V ac, 50/60 Hz,
1800 watts (config¬
urable to 220/240 V ac).
100 V ac, 50/60 Hz
model available.
Operating ac Voltage
Range:
Operates from line
voltages as low as 90
volts (at reduced output
power) assuming a 120
V ac nominal line.
Power Consumption/
Heat Produced:
(Both channels operating in dual mode with 1 kHz
sinewave input signal at stated output power into
4 Cl loads)
idle:
100 watts/0.340 kBTU/h
l/8th max
midband power:
l/3rd max
midband power:
1,440 watts/4.276
kBTU/h
1,800 watts/4.465
kBTU/h
Rated output power:
2,520 watts/4.488
kBTU/h
Max midband power:
2,700 watts/4.216
kBTU/h
Operating Temperature
Range:
Up to 60 °C (140 °F)
ambient
Electro-Voice • a Mark TV Company
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