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B-STOCK Studiospares HAR4 4-Way Rackmount Headphone Amp
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B-STOCK Studiospares HAR4 4-Way Rackmount Headphone Amp

Product Code: B-449340

The Studiospares HAR4 is a professional 4 channel multifunctional Headphone Amplifier. Designed for the studio who needs performance and flexibility.

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  • Description
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**Excellent condition. Has been rack-mounted. No other signs of use. Fully tested, working perfectly. Boxed with manual and mains lead. Full 12 month warranty.

The Studiospares HAR4 is a professional 4 channel multifunctional Headphone Amplifier.
Designed for the studio who needs performance and flexibility.

The Input and Output levels are displayed on a 7 segment LED ladder enabling the HAR4 to easily interface with other equipment. The Main inputs are on the rear panel via XLRs and Jacks with linked Thru Outputs for daisy chaining. This Stereo signal becomes a stereo buss available to all four headphone channels.

Each of the four Headphone channels includes:- Switches for Left Mute and Right Mute and a Stereo/Dual Mono operation.
Controls are provided for Bass and Treble EQ, Output Volume and Mix facility between the main inputs and an Auxillary input.
Jack sockets for the Auxillary input and Headphone Output.
LEDs provide a visual indication of the Headphone Output Level.

Specifications

Audio Inputs
Main Input XLR and 1/4” Jack connectors
Input impedance 40k ohm balance, 30kohm unbalanced
Maximum input level 16dBu balanced or unbalanced

 

AUX Input
Input impedance 5k ohm
Maximum input level 22dBu
Direct Input 1/4” Stereo Jack

 

Audio Output
Main Output XLR and 1/4” Jack Balanced
Phone Output 1/4” Stereo Jack

 

Headphone Amplifiers
Maximum power output +24dBm (load impedance 100 ohm) +21dBm (load impedance 8 ohm)
Minimum load per channel 8 ohm

System Specification
Frequence Response 10Hz to 150kHz ± 3dB
Noise 22Hz to 22kHz >90dB@ 0dBu
Dynamic Range 22Hz to 22kHz 110dB
Distortion (THD) 0.006% typically @+4dBu, 1kHz

 

Function Controls
Input Level Variable
Balance per Channel Mix between Aux and Main signals/balance between left and
right channel
Output level per chan Variable
Treble Cut off frequency 6kHz, Range ±12dB
Bass Cut off frequency 150Hz Range ±12dB

 

Function Switches
Stereo/2 Channel Switches between stereo mode and 2 channel mode
Left Mute Mutes the left signal of the respective channel
Right Mute Mutes the right signal of the respective channel

 

Displays
Input Level 7 segment LED display -30dB, -24dB, -18dB, -12dB, -6dB, 0dB, CLIP
Output Level 7 segment LED display -30dB, -24dB, -18dB, -12dB, -6dB, 0dB, CLIP

 

Power Supply
Mains Voltage 100-120VAC and 200-240VAC 50-60Hz
Mains Connection Standard IEC receptacle

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