Answer:
The amplifier connects up to 4 low-impedance dynamic microphones, 1 line-level auxiliary audio source, and can output to standard 4Ω, 8Ω, or 16Ω speaker loads or 100V line distributed ceiling/column speakers. A 1V/3.5kΩ line output allows connection to external booster amplifiers.
The Ahuja DPA-770M provides flexible interface options for commercial PA installations:
- Audio Inputs: Accepts 4 dynamic low-impedance microphones across dedicated channels (Mic 1 through Mic 4) and 1 line-level Aux input for media players, CD players, or audio consoles.
- Speaker Loads: Rear barrier terminals allow direct connection to low-impedance 4Ω, 8Ω, or 16Ω speaker networks, or high-impedance 100V line-matching transformers for distributed ceiling speakers and sound columns over long cable runs. Note: Low-impedance and 100V speaker outputs must not be connected simultaneously.
- System Expansion: Features a dedicated 1V / 3.5 kΩ preamplifier line output to feed slave booster amplifiers for multi-zone or higher-wattage system expansion.
- DC Backup Port: Terminals support connection to an external 12V–14V DC battery (they are not included).
