Electro-Voice 7300A - IN CASE OF PROBLEMS

operating and Service Instructions for the Electro-Voice 7300A Power Amplifier
8 SPECIFICATIONS Bridge mode, 8 or 16 O: 39 dB
Conditionss
1. 0 dBu = 0.775 volts rms.
2. Dual mode ratings are for each channel.
3. Both channels operating at rated output power
unless noted.
4. 120 volt ac line input voltage maintained for all
tests unless noted.
Continuous Rated Output Power:
(20 Hz - 20 kHz at less than 0.1% THD)
Dual mode, 4 D: 300 watts/ch
Bridge mode, 8 O; 600 watts
Dual mode, 8 D: 200 watts/ch
Bridge mode, 16 O; 400 watts
Input Sensitivity for Rated Output Power:
(Ref. 1 kHz, ±0.15 dB)
Dual mode, 4 Cl:
Bridge mode, 8 fl:
Dual mode, 8 fl:
Bridge mode, 16 fl:
Maximum Input Level:
(Ref. 1 kHz)
Input Impedance:
(Ref. 1 kHz)
Balanced:
Unbalanced:
+0.1 dBu (0.78 V rms)
+0.1 dBu (0.78 V rms)
+ 1.2 dBu (0.89 V rms)
+ 1.2 dBu (0.89 V rms)
+20 dBu (7.75 V rms)
15 kO
15kfl
Continuous Rated Output Power to Subwoofer:
(20 Hz - 1 kHz at less than 0.1% THD)
Dual mode, 4 0: 375 watts/ch
Bridge mode, 8 0: 750 watts
Dual mode, 8 O: 225 watts/ch
Bridge mode, 16 O: 450 watts
Polarity:
Positive-going signal
applied to pin 2 of XLR
or Tip of 1 / 4 " TRS jack
produces positive-going
signal at (+) output
terminal.
Maximum Midband Output Power:
(Ref. 1 kHz, 1% THD, @120 volts ac line voltage)
Dual mode, 4 O:
Bridge mode, 8 O:
Dual mode, 8 O:
Bridge mode, 16 O:
>400 watts/ch
>800 watts
>250 watts/ch
>500 watts
(Ref. 1 kHz, 1% THD, @108 volts ac (10% sag))
Dual mode, 4 fl: >325 watts/ch
Bridge mode, 8 fl: >650 watts
Dual mode, 8 fl: >200 watts/ch
Bridge mode, 16 fl; >400 watts
(Ref. 1 kHz, 1% THD, @100 volts ac (17% sag))
Dual mode, 4 O; >230 watts/ch
Bridge mode, 8 O: >460 watts
Dual mode, 8 fl: >175 watts/ch
Bridge mode, 16 fl: >350 watts
Headroom (Before clip): >1 dB
(Ref. 1 kHz, 1% THD, any mode)
Frequency Response; 10 Hz - 90 kHz
(Ref. 1 kHz, 1 watt output, +0/—3 dB)
Power Bandwidth: 20 Hz - 20 kHz
(Ref. 1 kHz, +0/—1 dBr where 0 dBr = rated output
power in any mode)
Voltage Gain:
(Ref. 1 kHz)
Dual mode, 4 fl or 8 fl: 33 dB
Phase Response;
(Any mode)
20 Hz: <+25°
20 kHz: >—15°
THD: <0.1% (lyp. <0.01%)
(Any mode, 30 kHz measurement bandwidth)
IMD (SMPTE 4:1): <0.05% (Typ. <0.01%)
(Any mode)
TIM (DIM 100); <0.05%
(Any mode)
Rise Time: <6 psec
(Any mode, 10% to 90%)
Slew Rate:
Dual mode, 4 or 8 D: >30 V/psec
Bridge mode, 8 or 16 fl: >60 V/psec
Damping Factor:
(Dual mode, 8 fl)
20 Hz - 1 kHz: >200
20 kHz: >75
Crosstalk: <75 dBr
(Ref. 1 kHz, 0 dBr = rated output power into 8
ohms, single channel operating)
Noise: >100 dB
(Below rated output power, A-weighting filter, 8 fl
8
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