Date: 15/07/2011 Page 2 / 9
General Features
A new conce t Digital Stereo Am lifier for vehicles, with significant technological innovations. All
functions are controlled by a micro-controller. Audio in uts (Radio-Video) and volume control. It
may be connected to any model/brand of Radio-Ta e/CD layer, which it also su lies ower
voltage to. Power-on for video system.
Two micro hone in uts with inde endent volume control and riority over all other sources. RS485
dual serial ort (interfaceable with CAN systems) to integrate into the vehicle devices and to
dialogue with different B&B devices. Can be cascadelinked to more am lifiers to create different
listening zones. Com act, versatile and easy to install. Works inde endently, connected to other
(B&B) am lifiers or with the (BBT54) a ro riate command key ad which enables direct source
selection and volume adjustment. Its small size means it fits easily into any art of the vehicle.
Caution
It is recommended to carefully read through the instructions, rior to setting this device in
o eration; a thorough understanding of the basics means an easier utilization of this device.
Please, follow the instructions to carry out the “BBA54” am lifier connections:
cha ter 4 CONNECTIONS
cha ter 5 DIAGRAMS OF CONNECTION
2 Operatin the BBA54 and BBA54-12 without the keypad
When ower is su lied the am lifier (BBA54 or BBA54-12) goes into standby mode and
su lies ower to the connected radio (Radio-Ta e/CD). By su lying voltage to the REM-RADIO
(switching on the radio) or REM-VIDEO (switching on the video system) or activating the
micro hones (MK1-MK2), the am lifier switches on. It is ossible to adjust the gain of each active
source individually. Adjustments remain in the memory even when the su ly voltage is switched
off. The REM-VIDEO has riority over the REM-RADIO, MK1 and MK2 have recedence over both
of them and MK1 has riority over MK2. In the absence of these commands, the am lifier returns
to standby.
2.1 Power-on and off
REM-RADIO (switching on the radio), REM-VIDEO (switching on the video system) or with
MIKE1/MIKE2 being active, the am lifier is switched on. In the absence of these commands,
standby mode is restored.
2.2 In uts/Functionality
RADIO: in ut for Radio -Ta e/CD
On switching on, the radio (Radio-Ta e/CD) su lies voltage (REM-RADIO) to contact no. 2 of the
“RADIO PW” connector of the determining am lifier: source on and source selection.
VIDEO: in ut for video system audio
Voltage (REM-VIDEO) su lied to contact no.10 of the “POWER” connector determines: switching
on monitors, am lifier and source selection. The VIDEO in ut has riority over the RADIO.
Mikes: The am lifier is rovided with two mike in uts (MK1-MK2) with riority over
all other sources, mikes are switched on with their own switch, and are
not de endent from the am lifier status (on or off).
