Electro-Voice 7300A Owner's Operation And Service Instructions page 11

Operating and Service Instructions for the Electro-Voice 7300A Power Amplifier
dual mcxlG, 50/60 Hz ac line frequency)
Amplifier Protection; Shorted output term¬
inals, Over-temperature,
RF interference
Load Protection;
Startup/shutdown trans¬
ients, DC faults, Sub¬
sonic signals
Cooling;
Heatsink: Thermally equalized 3/16
in aluminum black ano¬
dized heatsink
Fan: Thermostatically con¬
trolled dual speed fan.
Approximately 50 CFM
at low speed and 100
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: 16 devices
Pdmax 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: W phone (x 2),
Female XLR (x 2),
Octal accessory socket (x
2), powered with ±15
volts DC at 25 ma.
Output: 5-way binding posts
Power:
6
ft (1.83 m), 3-wire, 16
GA power cord with
NEMA 5-15 plug/IEC
Fuse Type; Littelfuse Type 3AB 10
A/250 V Slo-Blo® 326-
series ceramic cartridge
body, or equivalent (for
120 V ac use)
Power Requirements; 120 V ac, 50/60 Hz, 1000
watts (configurable 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
D loads)
idle: 72 watts/0.245 kBTU/h
l/8th max
midband power:
720 watts/2.100 kBTU/h
l/3rd max
midband power: 1,068 watts/2.702
kBTU/h
Rated output power:
Max midband power:
1,464 watts/2.938
kBTU/h
1,680 watts/2.873
kBTU/h
Operating Temperature
Range; Up to 60 °C (140 °F)
ambient
Dimensions (Rear of rack ears to max depth):
5.25 in H
X
19 in W
X
13
in D
(13.3 cm H
X
48.3 cm W
X
33 cm D)
Electro-Voice ® a Mark IV Company
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