Edwards EST 1B3-250 250 Watts Audio Power Amplifier
by EDWARDS
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The 1B3250 Power Amplifier is rated at 250 Watts continuous (RMS) power and it contains circuitry for 24 Vdc backup. The Amplifier mounts in a standard 19 in (483mm) rack. Output Voltage may be 25 or 70 VRMS. Supply Voltage is 120/240 V, 50/60 Hz, or optionally 24-28 Vdc. The Amplifier contains electronic protection safeguards against overloads or shorted output. A thermal overload protection circuit is also included that opens the primary power circuit if the unit overheats. Both protection circuits are self-restoring. The system may incorporate a Standby Amplifier as a backup against any unit failure.