Audio Database

OP902-B
Commentary

Battery adapter kit developed for voltage amplification stage of A902-M.

The structure is the same sealed type as the one mounted on A901-C, and free grounding is possible.
The battery is a maintenance-free type and consists of 4 12 V AH (Amp-hour) batteries for ± 24 V power supply.

When connected to A902-M, it operates in conjunction with A902-M. Charging starts with the power switch OFF of A 0 - M. When charging is completed, it automatically turns OFF. It can be used for 7 ~ 10 hours with one charge.
Also, if you turn on the charging switch of A902-M, you can use it while charging.

Model Rating
Type Battery adapter kit
Rated supply voltage + / - 24 v
Continuous use time Fully charged : 7 to 10 hours
Charging time 50 Hz : about 10 hours
60 Hz : about 8 hours
Power consumption Charging : 25 Wmax
Operation + Charging : 25 Wmax
Operating : 80 mA (4W), battery consumption
External dimensions Width 440x Height 120x Depth 415 mm
Weight 10.5kg