Stiprintuvas SHOW PA-20B (garso), "Bluetooth", 1 x 20 W/4 Ω

Amplifier SHOW PA-20B (audio), 1 x 20W/4 Ohm
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 6.35 mm TRS jacks, rotary volume controls for both microphones and an AUX input, and easy EQ tone correction settings. 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 size and weight
- supply voltage 12V to 15V / 2A DC
- power 20W up to 4Ω load
- Class D operation, high efficiency, low heating
- mounting using the enclosed 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: 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)
- AUX input sensitivity: -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
- dimensions (W x D x H): 161 x 101 x 45 mm
- weight of PA-20B: 890g


Package contents :

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



Manufacturer: SEIKAKU Group - SHOW
http://www.seikaku.hk/