• Next day delivery
  • Free standard UK delivery
    on all orders over £100
  • Industry leading
    customer service
  • Free technical support
    from our team of experts


A dual, bi-directional rack-mounting (1U) stereo interface, for matching two pieces of “semi-pro” or “domestic” equipment, including cassette machines, video recorders and DAT machines for example, to the higher audio levels and differing connection methods of “professional” environments. This compact design is constructed in a 1U enclosure only 92mm deep, with all connections on the rear panel. For each piece of equipment there are four XLR connectors, two are female connecting to high-impedance, electronically-balanced, line-level inputs, and two are male, fed from electronically-balanced low-impedance, line-level outputs. These four connections are to interface with the “professional” environment, but may also be connected unbalanced without loss of level. They are designed to connect with up to 100m FST cable (or similar) to standard line-level (low source, high or “bridging” load impedance) interfaces. RCA (phono) connectors are provided to connect to the “semi-pro” device. All are connected unbalanced, and have an adjacent associated multi-turn gain control to adjust the operating level of the attached device to the line-up level of the “pro” environment. An IEC inlet with fuse provides connection to the mains supply (cable not included). The front panel has only an LED, to indicate power connection. Source material is offered to aid alignment, see Test discs and tapes.

Technical Specification:

Unbalanced to balanced sections

Input impedance: 47kohm
Maximum input level: +22dBu
Nominal gain range: 0dB to +25dB
Load impedance: >500ohm
Output noise: -94dB RMS re +8dBu O/P (20Hz-22kHz, +14dB gain), (input terminated 600ohms)
Harmonic distortion: 0.005%THD (1kHz, +8dBu O/P)
Frequency response: 20Hz-20kHz +/-0.1dB
Maximum output level: +26dBu (10kohm load),+24dB (600ohm load)

Balanced to unbalanced sections

Input impedance: 20kohm
Maximum input level: +22dBu
Input CMRR: 70dB, typical
Nominal gain range: -25dB to 0dB
Load impedance: >1000ohm
Output noise: -94dB RMS re +8dBu I/P (20Hz-22kHz, -14dB gain) (600ohm input termination)
Harmonic distortion: 0.003%(1kHz THD, -14dBu O/P)
Frequency response: 20Hz-20kHz +/- 0.1dB
Maximum output level: +22dBu (1000ohm load)


Power supply: 230V AC +/-10%, 6VA
Dimensions: 483(w) x 1U(h) x 92(d)mm
Weight: 1.2kg
  Description Price (£) Add to basket
CANFORD PRO-INTERFACE Mk.2 Bi-directional, dual stereo, 1U Rackmount   Stock code:
Please login for stock availability and lead times.
Clearance £135.00