Whirlwind HATT AES Active Headphone Amplifier

The Whirlwind HATT-AES is an active headphone amplifier that converts a digital AES3 stream into a high fidelity, low distortion stereo headphone signal optimized for modern 32Oh m headphones. Sample rates from 32 kHz to192 KHz are recognized by the HATT-AES D/A converters. Features include an analog 3.5mm TRS stereo input jack, analog signal present LEDs, and a buffered AES loop-thru output. The headphone output can also be used as an unbalanced stereo line driver. The HATT-AES is powered by an included model #PS6 “wall wart” supply. Both ¼” TRS and 3.5mm TRS headphone jacks are provided and the volume control adjusts the listening level. The HATT-AES is housed in an attractive, durable ABS box for placement anywhere a high quality headphone driver is required.

Technical specifications

Frequency Response:
+/- .8 dB 20 Hz to 20 kHz (30 Ohm load)
+/- .2 dB 20 Hz to 16 kHz (10 kOhm load)
THD+noise:
< .05% 20 Hz to 20 kHz (30 Ohm load)
< .004% 20 Hz to 20 kHz (10 kOhm load)
Input Impedance:
100 kOhms AES
10 kOhms analog
Headphone Impedance: 32 Ohms recommended
Power requirements: 6 VDC @ 300mA (#PS6 included)
Short circuit protection: WIt'stands shorted output at full level indefinitely
Total Gain: 20 dB
Noise at unity gain: < -98 dBV
Maximum output level: +4 dBV
Maximum Input level:
+0 dBfs (5 Vpp) AES
+3 dBV analog