Radial Pro-Iso +4dB to -10dB Converter

The Pro-Iso™ is a +4dB to -10dB converter that employs a cost effective transformer that focuses the energy in the voice range. This makes the Pro-Iso a great choice for sermons, news gathering and spoken voice.

The passive design begins with 100% discrete components throughout. A set & forget level control lets you attenuate the input signal to prevent it from overloading the destination device. Output connections include a stereo pair of ¼" connectors, a set of RCAs and a mini 3.5mm (1/8") for interfacing to a mini recorder or lap-top computer. Transformer isolation helps eliminate hum and buzz caused by ground loops while eliminating stray DC currents from flowing.

Radial Pro-Iso Features

• Converts balanced line level signals to unbalanced
• Stereo signal path with set & forget level control
• Transformer isolated to eliminate hum & buzz
• J-Iso features Jensen™ transformers for optimal signal path

• Pro-Iso +4dB to -10dB Converter1
• Three Year Warranty (transferable)1

• Audio circuit type Passive, transformer based
• Transformer Radial transformer
• Number of channels Stereo (dual mono)
• Frequency response 20Hz ~ 18KHz (+0dB/ -3dB)
• Dynamic range 130dB
• Total harmonic distortion 0.005% @1kHz
• Phase Deviation 1.5° @100Hz; 3° @20Hz
• Input Impedance 1.3k Ohms
• Output Impedance 1.9k Ohms
• Common Mode Rejection Ratio -76dB
• Maximum Input +20dBu @1kHz/1% THD+N
• Features
  • Ground lift, Level Control
  • Input Connectors: Balanced XLR
  • Output Connectors: 1/4", RCA and 3.5mm TRS unbalanced output
• Construction 14 gauge steel chassis
• Size (LxWxD) 8.4x12.7x4.8cm (3.3x5x2")
• Weight 0.7 kg (1.55 lbs)
• Shipping size (LxWxD) 10.2x7.6x16.5cm (4x3x6.5")
• Shipping weight 0.87 kg (1.92 lbs)
• Power Passive, no power required
• Conditions For use in dry locations only between 5°C and 40°C