500 series headphone amplifier

AUDITOR is a Class A headphone amplifier for API 500 series compatible racks with ultra-low distortion, a linear frequency response and large headroom. It drives headphones across a wide impedance range and protects both your hearing and your headphones with clear indicators and protection circuits.

• Class A output stage, 6.35 mm (TRS) headphone output
• Maximum output power 1 W per channel, output impedance below 1.1 ohms
• THD below 0.005 % at 200 mW
• Frequency response 10 Hz – 100 kHz (+0.05/-1 dB)
• Protection against DC offset, overcurrent and power-on transients, with PROTECT indicator
• Indicators for output power, input level and headphone presence
• Mono and mute switches; the module starts muted after every power-up
• The line signal is passed through unchanged to the rack outputs, e.g. to monitors or additional AUDITOR modules
• Occupies 2 slots in a 500 series chassis, powered by the rack; module only, chassis not included