J33

Phono Preamp & DI

The J33™ combines a high quality turntable (phono) preamp with a DI box, providing consumer line-level outputs in addition to balanced mic-level outputs that allow you to connect a record player to pro audio equipment such as mixing consoles and recording interfaces.

Features

• Combination RIAA phono preamp and DI Box
• Stereo RCA and XLR outputs
• Built-in low frequency rumble filter
• Choice of 48V phantom power or DC power supply

A DI box for your turntables

The J33 provides the ability to connect turntables to pro audio equipment such as a recording interfaces and mixers, allowing you to easily integrate your vinyl collection with studio gear for playback or recording. Balanced XLR mic-level outputs are available for connection to a mic preamplifier for archiving or sampling in the studio, and -10dB consumer line-level outputs are also provided to connect to home stereo equipment. The J33 can also be used in a live performance environment, offering an improved interface for DJs to connect to the PA system.

J33 Applications

Turntable to J33 to hifi system

Most new stereo systems are not equipped with a phono preamp input. The Radial J33 is a high performance phono preamp that delivers audiophile quality to your HiFi system by simply connecting the turntable to the RCA inputs and the receiver to the RCA outputs.

Turntable to J33 to mixing console and PA system

DJs rejoice! You can now connect your turntable directly to a mixing console using the J33. Take the balanced lo-Z outputs form the J33 and connect just like a microphone… only stereo. The DI box output from the J33 is perfectly suited for all PA systems.

Turntable to J33 to computer

Plug your turntable into the J33 and then the outputs to an audio interface for digital recording. Add compression, gates and EQ to ‘remaster’ as needed.

Specifications

The Radial J33 is a combination stereo phono preamp and direct box designed for dynamic cartridges. Careful attention has been paid to delivering a smooth sounding RIAA transfer curve while keeping noise down to the absolute minimum for the noise-prone world of 33 RPM long-play records. Both unbalanced consumer line level and balanced mic level outputs are supported.

• Audio circuit type: Active circuit
• Number of channels: Stereo
• Frequency response: RIAA response curve for phonographic playback
• Dynamic range: 91dB
• Total harmonic distortion: 0.002% @ 1kHz (-33dBu input level)
• Intermodulation Distortion: 0.025% @ -45dBu input
• Input Impedance: 47k Ohms, unbalanced
• Output Impedance: XLR out: 600 Ohms; RCA outs: 470 Ohms
• Equivalent Input Noise: -82dBu @ 0dBu output
• Maximum Input: -30dBu @ 1kHz
• Voltage Gain: +37.8dB

Features

• HPF
• Input Connectors: RCA
• Output Connectors: RCA, XLR
• Extras: Rumble Filter

General

• Construction: 14-gauge steel chassis and outer shell
• Size (L x W x D): 5" x 6.25" x 2" (127 x 159 x 51mm)
• Weight: 2.80lbs (1.28 kg)
• Power: +48V phantom or +15VDC/400mA external supply (included)
• Conditions: For use in dry locations only between 5°C and 40°C
• Warranty: Radial 3-year, transferable