ART HeadAmp 6 Pro

ART HeadAmp 6 Pro is a six-channel headphone amplifier featuring a six-channel auxiliary input section that allows for the popular "More Me" function in each headphone mix.
An example setup might be as follows: the main signal from the mixer’s main output, containing the complete mix, is sent to the main input of the HeadAmp 6 Pro, while the STEREO AUX IN inputs receive individual sends from the vocalist, guitarist, drummer, etc. On each channel of the device, you can adjust the balance between these signals, allowing each musician to set their volume relative to the main mix to their liking. This is done using the BALANCE controls, which, when the STEREO AUX IN input is not in use, function as stereo balance controls for the main input signal.
Each channel also features a two-way tone control (±10 dB for bass and treble), a LEVEL control, and buttons for mono summing (you can choose mono summing of the left channel, right channel, or a summed mono of both channels). The front panel includes a headphone output, paralleled with a similar output on the rear panel (allowing for the connection of 12 pairs of headphones). Each channel is equipped with an 8-segment signal meter that shows the signal level after the LEVEL control, directly at the headphone output. The minimum combined impedance that each headphone amplifier channel can handle is 12 ohms.
The input section includes XLR and balanced 1/4” TRS jack inputs, with corresponding THRU jacks, enabling multiple HeadAmp 6 Pro units to be connected together. An additional input on the front panel, DIRECT IN, has priority over the rear inputs, allowing for quick connection of any audio source.
The ART HeadAmp 6 Pro is housed in a typical 1U rackmount enclosure. The front panel is made of an aluminum plate, characterized by an attractive yet professional design.

Key Features

Six channels with separate gain, bass, and treble controls

Dual function balance/mix control for each channel

Stereo Aux input on the rear panel for each channel

Operates in stereo, mono (source left), mono (source right), or summed mono (source left & right)

Eight-segment LED level indicators on all channels and bus

Direct In input on the front panel

Output jacks on the front and rear panel

Connects and drives up to 12 headphones simultaneously

Main XLR and 1/4" TRS inputs and outputs

Parallel main outputs for connecting multiple units

Specifications

Input Connectors: XLR-F balanced (2), TRS ¼" balanced (9)

Output Connectors: XLR-M balanced (2), TRS ¼" balanced (2), TRS ¼" stereo headphone (12)

Input Impedance: 40kΩ Main, 10kΩ Direct, 15kΩ Aux In

Output Impedance: <12Ω Headphones

Maximum Input Level: +21dBu (all inputs)

Maximum Output Level: 150mW (600Ω Headphones), 500mW (32Ω Headphones), 150mW (8Ω Headphones)

Maximum Gain: 25.6dB

Frequency Response: 20 Hz - 50 kHz (+0/-2 dB)

Treble Control: ±10 dB @ 10 KHz

Bass Control: ±10 dB @ 100 Hz

Signal-to-Noise Ratio: >90dB typical

THD: <.01% typical

Dynamic Range: >101dB typical

Power Requirements: 230V AC / 50 Hz, 18W

Dimensions: 44.5 x 483 x 190.5mm

Weight: 3.1kg