The Product

The Sonifex RB-HD1 is a 1U rack-mount stereo headphone amplifier for driving up to two pairs of professional stereo headphones from a single stereo or mono input. One headphone socket is presented on the front panel with the second on the rear. The main stereo input employs an electronically balanced connection presented on XLR connectors on the rear panel, which can be wired unbalanced if required. The output volume for the headphones can be controlled either by a rotary control situated on the front panel or by a VCA signal supplied externally via the remote connector.

A mono input can be mixed into the main headphone feed, typically used for mixing in talkback to the headphones, the level of which is controlled via a recessed trimmer. The mono mix input can also be controlled remotely and a recessed stereo/mono switch is incorporated on the rear panel to prevent accidental knocking. With mono selected, audio is sent to both left and right ear pieces. A LED indicator on the front panel confirms the presence of mains power.

An optional RB-RK1 rackmount kit is available separately.

The Manufacturer

Sonifex is a family business started as a partnership in 1969 by Paul and Dorothy Brooke, which has had a steady turnover for over thirty seven years of trading, and has established a recognised position in the radio broadcasting industry. Over ninety percent of British radio broadcast studios have in the past used some form of Sonifex equipment and the company exports on average fifty percent of its products. Sonifex supplies equipment to over sixty countries world-wide and is recognised for the quality and reliability of its designs and finished equipment. The constant need to innovate is now an integral part of the Sonifex culture, combining healthy and outward-looking ideas with sound and efficient design practices.

General

• frequency response 20Hz - 20kHz
• individual volume control -80dB to +11dB gain
• maximum input level +28dBu
• input connector balanced XLR
• input impedance balanced >20kΩ balanced
• output connector unbalanced ¼" Jack
• output level 150mW headphones
• output impedance 32Ω - 600Ω
• power requirements 9W
• dimensions 480mm W x 108mm D x 42mm H
• weight 1.35kg

Accessories Included

Power Cable
User Guide

Availability

This item is available in two to four days approximately.

Delivery cut off time

The cut-off time for ordering this product for next working day delivery, subject to stock availability, is 3.30pm UK time.

Shipping Costs

The delivery cost of shipping this product to a UK mainland delivery address is FREE of charge.

International Delivery Charges

For international shipping options and charges please see the Delivery Information page.