GAI-Tronics PMA-300 Manuel - Sayfa 13

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Model PMA-300 300 Watt Central Amplifier

Specifications

Electrical:
Supply Voltage: ................................................208 V ac +10%,-0%, (208 V ac, 60 Hz nominal), 50/60 Hz
Power consumed (@ nominal V in):
Idle / Rated Output ...............................................................................30 VA.; 20 W / 790 VA; 530 W
Output Power:..............................................300 W
..............................................................De-rate to ~10 W
Output Peak Power: ................................................................................................... 430 W
Output Voltage: ...................................................................................................... 70.7V
THD @ rated output & nominal Vin: .................................................................................1.5 % maximum
Frequency Response: (At rated output)................................................................. 50 Hz-17.5 kHz +0/-3dB
Hum/Noise below rated output: .........................................................................................-70 dB minimum
Input Sensitivity for rated output: .............................................................. ~775 mV
Input Impedance ............................ (Balanced - Between Pin 2 {Hi} & Pin 3 {Low}) 15 K ohm (nominal)
Phase linearity: ......................................................................................................... +/-35º (100-10000 Hz)
Damping factor:.................................................................................................>10 @ 1 kHz >3 @ 19 kHz
Start-up Delay Time: .................................................................................................... 2 seconds (nominal)
Internal Thermal Protection {mounted to heatsink}:.................................................. 75ºC (167ºF) nominal
Temperature range: Operating: ..................................................................... 0 to +50ºC (+32ºF to +122ºF)
Storage:..................................................................... -10 to +60ºC (+14ºF to +140ºF)
Humidity: ................................................................................................. Non-condensing, 85% maximum
General:
External Controls
Front:..................................................................................................................AC Main POWER Switch
Rear: .............................................................................................................................................................
Front Panel LED indicators: ........... Power ON; DC in; OHEAT; internal main dc bus FUSE failure (F1);
AC Primary fuse: (accessible externally from inside of rear panel's IEC power connection)
Model PMA-300 (208 V ac):..................................................... T6.3A, Time-lag Slo Blo (5 x 20 mm)
Internal Fuses:
Low Voltage Power Supply:..................................................... F3 T1A, Time-lag Slo Blo (5 x 20 mm)
Audio Output Stage:............................................................... F1 T16A, Time-lag Slo Blo (5 x 20 mm)
External Connections (Rear):
AC in:............................................................................................................ IEC 320 (male) connector
Audio In: ......................................................................Dual (feed-thru) 3-pin XLR (female) connector
Audio Out: ................................Two SPEAKON™ (70.7 V ac and 100 V ac) by Neutrik® connectors
Monitor bus: (Reserved for special applications) ............. Dual gold-plated RCA™-style (female) jack
I/O port: (Reserved for special applications) ............................................D sub 9-pin (male) connector
Enclosure:............................................................................................................ 16 gauge cold-rolled steel
Finish: Front: ......................................................................................................................................Black
Rear: .......................................................................................................................................Black
f:\standard ioms - current release\instr. manuals (42004)\42004-667l2a.doc
12/00
RMS
output OLOAD; output PEAK; ALARM; watt output (dB scale) seven segment
continuous @ T
= 24ºC with adequate ventilation.
A
continuous @ T
= 50ºC @ nominal V ac in
RMS
A
12 of 13
Page
Pub.: 42004-667L2A
(t=100 mS)
RMS
ac; 100V
ac
RMS
RMS
(Balanced Z Input)
RMS
LED bar graph.