shengya-audio







SPA-1 Constant Voltage Broadcast Power Amplifier
SPA-1 Constant Voltage Broadcast Power Amplifier
CONSTANT PRESSURE

Rated output: 300W

Output adjustment rate: from full load to no load, less than 3dB

Output mode: 8Ω balanced output, 70V, 100V constant voltage output

Auxiliary output:> 95Db

Input: Mic 1,2,3: 600Ω, 2.0mV (-54dBV), unbalanced / AUX1,2: 10kΩ, 100mV (-20dBV), unbalanced

Frequency response: 100Hz 16kHz

Harmonic distortion: less than 0.1% at 1 kHz

S/N Ratio: Microphone 1,2and 3: 66dB AUX 1 and 2: 70dB

Size: 430 X 125 x 380 (mm)

Weight: 14Kg


• Three microphone input ports, two auxiliary input ports, one auxiliary output port, public address.

• 100V, 70V constant voltage output and 40hms constant resistance (balanced, ungrounded) output.

• There is a silent function, which is convenient for inserting priority broadcast.

• Independent volume control for each channel.

• Treble and bass tone control.

• 5 unit LED level meter, it is easy to observe the output level.

• Output short circuit protection and alarm. (Light flashes)

Details


technical parameter:
Rated output300W
Output adjustment rateFrom full load to no load, less than 3dB
Output method8Ω balanced output, 70V, 100V constant voltage output
Auxiliary output> 95Db
EnterMic 1,2,3:600Ω, 2.0mV(-54dBV),unbalanced
AUX1,2: 10kΩ, 100mV(-20dBV),unbalanced
Frequency response100Hz 16kHz
Harmonic distortionLess than 0.1% at 1 kHz
Signal to noise ratioMicrophone 1,2and 3: 66dB AUX 1 and 2: 70dB
Pitch adjustmentBass: ± 10dB at 200Hz Treble: ± 10dB at 200Hz
ProtectionAC fuse X 1, DC output, overload protection
Mute functionMIC 1 input covers other inputs (attenuation 0 -30dB)
Power supplyAC 220 240 / 50 60Hz
Power consumption500W
Size430 X 125 x 380 (mm)
Weight14Kg


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