Amplifier BBA58

Newly designed digital stereo amplifier with relevant innovations, intended for entertainment on mobile vehicles. Modern design, compact and functional, simple and immediate to use. The central display shows the selected functions and allows reading from any angle. Connectable to any Radio-Tape/CD brand/model, it has two microphone inputs with independent volumes and priority over other audio sources.
BBA58 is equipped with an exclusive circuit controlled by ALC (Automatic Level Control) microprocessor, which continuously analyses and corrects input signal amplitude variations (50÷600mV) maintaining the set amplification level constant, and with the sophisticated circuit with ELS (Electronic Loop Separator) differential input, which eliminates disturbances deriving from GND connections that are not ideal.

Nominal working voltage: 28 Vdc (18÷32 Vdc)
Absorbed current: 6 A max
Protections: Short circuit on all outputs, Inverted polarity on power supply
Overvoltage: (Load Dump 150 Vp – 300 ms)
Undervoltage: < 17 Vdc
Working temperature: 0 +70 °C
Storage temperature: -40 +85 °C
Sizes: 182x53x120 mm
Weight: 1,200 Kg

Input

Radio power: 1÷12 V RMS su 200 Ohm ALC+ELS
Radio-Video-Aux-Navi/Phone: 50÷600 mV RMS su 2,2 kOhm ALC+ELS
Mic level: 1 mV RMS su 680 Ohm ELS
Common Module rejection: > 60 db (10 Hz – 1 MHz)
Separating inputs: > 55dB (100 Hz – 10 kHz)
Video e Aux: mono-stereo
REM In Navi/Phone: 8 Vdc min 32 Vdc max

Output DC

V out nominal: 13.8 Vdc ± 5% – 3 A max (4,5 A)
REM OUT: 13.8 Vdc ± 5% – 500 max

Output AC

OUT coach Power: 2×25 W RMS (4 Ohm – THD 10%)
OUT cabin Power: 2×25 W RMS (4 Ohm – THD 10%)
Audio Pre OUT: 350 mV RMS con volume max ALC
Pass Band: 20÷20000 Hz (4 Ohm – 18 W THD 1%)
S/N Rapport: > 65 dB (ingressi chiusi – 100 Hz – 10 kHz)
Power Noise Rejection: > 70 dB (100 Hz – 10 kHz)
Contatti relais video: 2×5 A max

Cabin Section

Treble: high tones
Bass: bass tones
On-Vol: Ignition volume
On-Vol: Set=Ignition volume; Last=last selected
Mute Mike1: On: mute cabin with MIKE 1 on; Off: disconnection mute cabin with MIKE 1 on

Coach Section