The Product

The RB-BL4 is a 1U rackmount dual bi-directional stereo unit for interfacing domestic or semi-pro unbalanced equipment to professional balanced line levels, and vice versa. The four XLR electronically balanced inputs have an impedance of 20kΩ bridging and are routed to four unbalanced RCA (phono) outputs with an impedance of <50Ω. The four RCA unbalanced inputs have an impedance of 20kΩ and are routed to four balanced XLR outputs with an impedance of <50Ω. All connections are on the rear panel. The output gain can be adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.

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 ±0.1dB 600Ω load @ 1kHz
• noise level -100dB unity gain ref +8dBu output
• total harmonic distortion 0.01% @ 1kHz ref +8dBu output
• common mode rejection >66dB typically
• gain range unbal out -28dBu - 0dBu ref 0dBu into bal
• gain range bal out -15dBu - +15dBu ref -15dBu into unbal
• input connector unbalanced phono
• input connector balanced XLR
• input level maximum +28dBu
• input impedance unbalanced >10kΩ
• output connector unbalanced phono
• output connector balanced XLR
• output level maximum +28dBu
• output impedance balanced <50Ω
• power requirements 6W
• dimensions 480mm W x 108mm D x 42mm H
• weight 1.3kg

Accessories Included

IEC 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.