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Precision Tools for Audio Professionals

Audibox Iso Optimizer

Model Options


Iso Optimizer
Dual Channel unit only


  • Any pro audio-to-consumer interfacing;
  • Especially suited to level and impedance matching for digitising audio
Passive unit - requires no power

More Audiboxes:

ISO Balancer
ISO Balancer VC
ISO De-Balancer
ISO Later
ISO Splitter
ISO Combiner
ISO Optimizer
ISO Switcher

Q Switch

i - DI


Amp It Again

DI-Plus RC
DI-Plus2 RC

Pro DI
Ear Driver

The Iso Optimizer is a unique transformer isolated Level optimizer. It allows you to attenuate the level from one piece of equipment to the next in order to provide the exact level required and reduce the risk of overloading sensitive inputs.
Transformer Ground isolation provides low-noise operation suitable for any application

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

Available in Dual Channel format only

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 10K Ohms Balanced jack; Unbalanced RCA

Output Impedance 10K Ohms (User variable) Balanced jack; Unbalanced RCA

Input Headroom (max) +12dB

Input Attenuation User variable from 0db to infinity (off)

Frequency Response 20Hz - 20 KHz ± 0.5dB

THD at Max Output 0.2% 30 Hz - 20KHz

Insertion Loss 0.75dB @ 1 KHz (600 Ohm source)

Input Connectors
Balanced jack, wired Pin Sleeve Ground, Tip + Hot, Ring – Cold.
Unbalanced RCA wired Tip: Hot, Sleeve: Cold

Output Connectors Dual stereo RCA connectors
Balanced jack, wired Pin Sleeve Ground, Tip + Hot, Ring – Cold.
Unbalanced RCA wired Tip: Hot, Sleeve: Cold

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

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