Radial J33

Active Turntable Preamp & DI Box

Description

The Radial 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.

  • Combination RIAA phono preamp and DI Box
  • Stereo RCA, 1/4″ TRS, 3.5mm 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.

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 the 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.

Specifications
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; ¼”, 3.5mm, 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, 1/4″, 3.5mm, 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

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