BOSCH LBB1925/10 Plena System Pre-Amplifier is a versatile, high- performance unit with call and mono BGM
(background music). It fulfills a wide variety of public address requirements at a surprisingly low cost. It can provide dual channel operation for simultaneous calls and BGM for up to six different zones, using two Plena amplifiers.
The call channel provides two inputs for the Plena call stations, LBB 1941/00 (all-call) or LBB 1946/00 (six- zone), with loop-through capability, and universal, balanced input. One is a 3-pin XLR connector for microphone or line level (selectable), and the other is a 5-pin DIN-connector with all call priority contact, which may also be used to start one of the available chime attention signals.
The microphone input has a selectable speech filter for improved intelligibility, a volume control, and bass and treble tone controls with shelving characteristics optimized for speech. The call channel is available on the balanced XLR master output.
BOSCH LBB1925/10 Plena System Pre-Amplifier BGM channel provides three inputs on stereo cinch-connectors, converted to mono, with front panel selection, volume control and bass and treble tone controls with shelving characteristics optimized for music. The BGM channel has a direct output on balanced XLR for dual channel operation. It can also feed the master output, with the lowest priority, for single channel operation. Zone selector switches on the front panel control the BGM routing. An overload protected 24 VDC output provides power for driving external relays, often making an external power supply unnecessary.
Gomathi –
I am using forthe past 8 months Plena Amplifier . Elegant design and very good build quality. Sakthi Av Tronics service was very satisfactory an all the staffs
were very polite.
Gomathi –
Durga Devi –
Awesome product purchased from Sakthi AV Troncis Bosch Plena Amplifier . I am using for many months. No issues and the price was also affortable.
Durga Devi –
Ananthu –
LBB 1925/10 Plena System Pre-Amplifier is very Good. I didn’t except the quality of the product.
I got lowest price from Sakthi AV Tronics
Ananthu –
Krishna Prasad –
Bosch Plena System Pre-Amplifier
Quality is Awesome. Got very Lowest Price from Sakthi AV Tronics.
Krishna Prasad –