The high performance BOGEN 10W Attenuator with Priority Override ATP10 allows the output level of a network of 25V or 70V speakers to be controlled from a wall-mounted volume control, without affecting overall amplifier volume settings.A bypass function overrides the volume control knob setting when activated by 9V to 30V DC.Applying 9V to 30V DC between pins labeled D+ and D- bypasses the volume control function and provides full volume audio to the speakers.The ATP-Series attenuators feature etched faceplate markings.

Features:

• Bypass function allows important/emergency announcements to be heard at the highest level even if local attenuator volume is set low or off
• 2 models control up to 10-watt and 35-watt speaker systems
• 10 attenuation steps and an off setting
• Attenuation in 3 dB increments except for two lowest settings, which provide 6 dB reduction increments
• Mounts in standard electrical box, single (ATP10) or double (ATP35