Radial Pro Iso

A discreet yet essential link in an audio chain

This passive stereo converter meets a very common need in live sound and studio applications: properly interfacing equipment operating at different signal levels. It naturally fits between professional audio equipment and devices designed for a lower line level, with a simple and effective setup.

For technicians, musicians and hybrid setups

This model is intended for users who need to interface different audio standards without complicating their setup. It is equally well suited to a home studio, a control room, a permanent installation, or a DJ or event system where compatibility between devices is essential for maintaining a usable level and minimizing signal imbalances.

Simple stereo conversion, with no power supply required

Thanks to its passive operation, this converter requires no external power supply and integrates easily into an existing audio chain. Its primary function is to convert a balanced stereo signal at +4 dB to -10 dB, making it easier to connect devices using different standards while ensuring direct, fast and reliable operation.

Technical specifications

Frequency response - start	20 Hz	THD	0,005% @ 1 kHz
Frequency response - end	18.5 kHz	Inputs	2 x Rca, minijack stéréo
Category	Direct box	Analog outputs	2 x jack, 2 x XLR
Number of channels	2	Power supply	Passive
Digital conversion	No	Weight	720 g
Max input level (dBu)	20	Dimensions (mm)	82 x 127 x 47,5
Settings	output level

Type	passive stereo converter	Use	line-level matching between audio equipment
Conversion	balanced +4 dB to -10 dB