Amplifier PA-20B audio, Bluetooth, 1 x 20W / 4R SHOW

The PA-20B amplifier is a very compact monaural amplifier specially designed for fixed or mobile applications. Its small size and light weight make it easy to integrate into a small space. The amplifier is class D, so it has high efficiency and low heating. Operation at 12 to 15V DC is perfect for portable use or for installations where direct AC power is not available. This amplifier is the ideal solution for information points, cash desks and vehicles using a roof speaker system. The amplifier is equipped with a Bluetooth module, which prevents physical galvanic connection to sound sources and thus eliminates the possibility of hum and noise. The USB 5V power plug can be used as a charger for external devices. There is a main switch on the front panel and there are also 2 microphone inputs with TRS 6.35 mm sockets, rotary volume controls for both microphones and AUX input and easy adjustment of EQ tone correction. There is one stereo AUX input on the rear panel with RCA and 3.5 mm jacks. The rear panel also has a DC connector ø5.5 / ø1.5mm for connecting the input supply voltage 12V to 15V / DC and terminals for connecting a load with an impedance of 4Ω. The amplifier includes a switched power supply 230V AC / 15V DC / 2A.

Product parameters:

Model PA-20B
– small dimensions and weight
– supply voltage 12V to 15V / 2A DC
– power 20W to a load of 4Ω
– activity in class D, high efficiency, low heating
– mounting using the included screws on the wall
– 2 microphone inputs and line AUX
– built-in Bluetooth module BT4.0

Technical parameters:

– supply voltage: DC 12 to 15V
– external power supply: 230V AC / 15V DC / 2000mA.
– maximum current consumption: 2A
– rated output power: 20 W
– maximum rated power input: 30 W
– rated output impedance: 4Ω
– frequency range: 100Hz to 18kHz ± 3dB
– signal to noise ratio S / N: 65dB
– hum or noise: 25mV
– input sensitivity MIC 1 + MIC 2: -30dBu 1 kHz
– input sensitivity AUX: -11 dBu ± 2 dB 1 kHz
– THD distortion 1W: 1 -37dBu ± 2dB MIC1 ~ MIC2
– output isolating nf transformer: yes
– built-in Bluetooth module BT4.0: yes
– size W x D x H: 161 x 101 x 45 mm
– weight PA-20B: 890g

Package contents:

– amplifier PA-20M
– power supply 230V AC / 15V DC / 2A.
– two-pole reduction of terminals for connecting speakers
– screws for fixing the amplifier to the wall
– Czech and English instructions for use