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Precision Tools for Audio Professionals

ISO Combiner

Model Options

Turn unit around for second channel on the DUO model

ISO Combiner
Single Channel unit

ISO Combiner Duo
Dual Channel unit in unique DoubleHeader format

The unique Audibox DoubleHeader format puts one channel on the front of the unit, and a second channel on the rear, putting two channels in the space of one! An ultra useful and convenient option.

ISO Combiner
Passive unit - no power required

More Audiboxes:

Blue DI

(USB Plus Analog)

(USB Plus Analog)




ISO Balancer
ISO Balancer-VC

ISO Balancer DI

ISO De-Balancer
ISO Later
ISO Splitter
ISO Combiner
ISO Switcher
ISO Selector

Remote Switcher
Remote Selector

Q Switch

Pro DI
Ear Driver

DI-Plus RC
DI-Plus2 RC

ISO Combiner

The ISO-Combiner is a new transformer isolated combiner for the Audibox range of Pro Audio tools and problem solvers. It is ideal for use in applications where two sources have to be combined into one silently and easily.

A pair of transformer balanced female XLR inputs combine to deliver a single transformer isolated male XLR output in this essential audio package.

Available in Single Channel or Double Header format. The heavy duty all-steel chassis is finished in attractive matt textured powdercoat, with hardwearing epoxy screen printing and slip resistant rubber pads.
The ISO Combiner is a totally passive device with no power requirements, making it a universal problem solver.
Security features include Kensington®-type computer lock slot and optional bracket kit for under-table mounting.

The DUO version has a second input and output set on the rear, making it doubly useful


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

Available in Single Channel or Double Header format

T E C H N I C A L || S P E C I F I C A T I O N S

Input Impedance
600 Ohms Balanced

Max Input Level +20 dB

THD Max 0.2% 30Hz to 20 KHz

Frequency Response 20 - 20 KHz ± 0.5 dB

Insertion Loss < 6dB @ 1 KHz (600 Ohm source/load)

Power Requirements None

Input Connectors 2 x Female XLR, Wired Pin 1 Not Connected, Pin 2 + Hot, Pin 3 – Cold.

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

Construction All-steel powdercoated chassis chassis, fibreglass PCB, ultra low noise audio transformers

Please Note When combining Unbalanced Inputs, Pins 1 and 3 should be bridged and the Ground wired to Pin 3

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