Radial J-Iso (+4dBu to -10dBV converter)

Quick facts: Radial · Radial J-Iso (+4dBu to -10dBV converter) · DI · €20 + VAT per unit and day · rental in Madrid and across Spain, availability on request.

About the Radial J-Iso (+4dBu to -10dBV converter)

The Radial J-Iso (+4dBu to -10dBV converter) is a passive stereo line isolator that converts a mixer's balanced professional-level (+4 dB) signal into an unbalanced consumer-level (-10 dB) signal. Its Jensen transformers help reduce hum and buzz caused by ground loops. It is useful for sound engineers and production teams who need to send audio to a recorder or computer without overloading the input. We offer Radial J-Iso rental in Madrid and work throughout Spain.

What it is rented for

According to Radial, it is designed for recording a live performance with a portable recorder, feeding a computer's audio input or connecting a mixer's balanced output to a -10 dB consumer device. It fits concerts, conferences or corporate events where the desk mix needs to go to a recorder or laptop. If you also need to record, our catalogue includes portable recorders such as the Zoom H6 Essential; ask what the rental includes and check availability when you request a quote.

Key specs

• Passive, transformer-based stereo (dual mono) line isolator: no power required
• Converts a balanced +4 dB signal to unbalanced -10 dB, with level control and ground lift
• Jensen JT-11-YMPC transformers: reduce hum and buzz from ground loops and block DC
• XLR inputs; unbalanced outputs on 1/4" (6.35 mm) jack, RCA and 3.5 mm TRS mini-jack
• Frequency response 20 Hz – 20 kHz (+0/-1.5 dB); THD 0.001% at 1 kHz; maximum input +20 dBu
• Dynamic range 130 dB; input impedance 1.3 kΩ balanced; output impedance 200 Ω unbalanced
• 14-gauge steel chassis; 8.4 × 12.7 × 4.8 cm; 0.7 kg

Frequently asked questions

How much does it cost to rent the Radial J-Iso?

The rental price listed on our website is €20 excluding VAT. We are based in Pinto (Madrid) and work throughout Spain; ask for a quote and availability at info@peaksound.es or on +34 636 410 986 (phone and WhatsApp).

What connections does the J-Iso have?

According to Radial's specifications, it has balanced XLR inputs and unbalanced outputs on 1/4" (6.35 mm) jack, RCA and 3.5 mm mini-jack. Ask which cables the rental includes when you request a quote.

Does it need power?

No. Radial describes it as a passive, transformer-based isolator that requires no power, so there is nothing to plug in and no external power supply is needed.