audio technica / AT-HA65

This headphone amplifier can connect up to five headphones. Equipped with one analog and one optical digital input/output terminal, you can increase the number of headphones you can use by cascading the ATH-A65.

■A high-output headphone amplifier with 300mW + 300mW that can connect up to five headphones.
■Independently adjust the volume of each headphone using the front volume.
■One analog and one optical digital input, each selectable on the front panel.
■Line input and optical digital input (rectangular optical terminal) are output through.
■Digital input and output are 24-bit and support sampling frequencies of 32/44.1/48/96kHz.
■Cascade connection (connecting multiple units in series) allows you to increase the number of headphones you can use simultaneously.
■Space-saving half-U size.

Specifications:
■ Input: Analog input, S/PDIF-compliant optical digital input
■ Input impedance: 80kΩ or higher (ATT 0dB), 27kΩ or higher (ATT -9dB)
■ Recommended load impedance: 32Ω
■ Suitable load impedance: 8Ω or higher
■ Supported sampling frequencies: 8-96kHz
■ Supported bit depth: 24-bit
■ Frequency response: 20-20kHz, -3dB (100mW output, 32Ω load)
■ Signal-to-noise ratio: 97dB or higher (LINE input 0dBV output, JIS-A)
■ Maximum output power: 300mW x 5 stereo channels (1kHz, 10% THD, 32Ω load)
■ Total harmonic distortion: 0.1% or less (1kHz, 100mW output, 32Ω load)
■ Output impedance: 8Ω or less
■Power Supply: DC15V (uses included AC adapter, for use in Japan only)
■Input Terminals: LINE Input: Pin Jack
■Digital Input: Square Optical Jack
■Output Terminals: LINE Output: Pin Jack
■Digital Output: Square Optical Jack
■Headphone Output: φ6.3 Standard Stereo Jack
■Dimensions (excluding protrusions): H44 x W210 x D130.5mm
■Weight: Approx. 1.0kg
■Accessories: AC Adapter