USB DI-HP Dual Channel unit

Naturally it still features full transformer balanced output isolation to eliminate earth loops / ground hum and other extraneous interaction noise and distortion.

The addition of the headphone output and control allows easy personal monitoring of the audio signal passing through the USB DI-HP without the need for Monitor Loudspeakers.

Plug and Play

The USB DI-HP installs as a fully compatible generic USB audio device, requiring no special driver program installation on Mac OSX, Windows XP, 7/8/10 . However, a quick visit to our  USB Audio Knowledge Basepage will give you a very good idea of what USB audio can and can’t do.

The front panel has a Type B USB input connector and a Headphone Output Level control. While the USB DI-HP’s Transformer Ground isolation provides low-noise operation, an Audio Ground lift switch is also fitted, to minimise/remove ground loop hum. Switch in or out as required.

A status LED on the front panel next to the USB Input indicates that the USB DI-HP is connected and operating.

The rear panel has both 6.5mm (¼ inch) and 3.5mm ((mini-jack) headphone outputs, and two transformer balanced analog audio XLR Line out connectors for connecting to any standard balanced XLR analog input

The USB DI-HP is housed in a heavy duty all-steel chassis finished in attractive matt blue textured powdercoat, with hardwearing epoxy screen printing and slip resistant rubber basepad. It is ideal for interfacing any USB equipped computer (especially notebook computers) with the balanced inputs of professional sound systems.
Security features include Kensington®-type computer lock slot and optional bracket kit for under-table mounting.

The USB DI-HP is available in Dual Channel format, includes a premium quality USB-A to USB-B cable, and is hand made in Australia

USB-DI HP Specifications

Input Connector USB type B port

Codec 24 bit High Resolution, 44.1 and 48 KHz

Output Impedance 300 Ohms Transformer Balanced

Output Level 0dB

Output Noise
USB – System dependent
ISO transformer – Environment sensitive

Power Operating current via USB Port 80mA

Headphone output specs:

Max. output level 300mW @ 32 Ohms
Frequency Response 20 – 20 KHz ± 0.5 dB
Dynamic range 90dB ‘A’ Weighted

Frequency Response 20 – 20 KHz ± 0.5 dB

Output Connectors
2 x Male XLR, wired Pin 2 + Hot, Pin 3 – Cold. Pin 1 Chassis Ground

Construction
All-steel powdercoated chassis, fibreglass PCB, epoxy printing,
slip-resistant rubber basepad

System Requirements

• Windows PC running Windows XP, 7/8/10 or Mac running OS X or later
• USB port

Precision engineered Most of the Audibox range share a common footprint and manufacturing platform. Offset lid screws enable close side-by-side mounting of multiple units. Click on image at Right to see larger version