Radial RIAA Turntable Pre-Amp and DI for Dynamic Phono Cartridges

The Radial J33 is a high-performance stereo phono preamp and direct box designed for dynamic cartridges, perfect for transferring audio from 33 RPM long-play records to professional audio systems. With a meticulously crafted RIAA response curve and advanced noise reduction features, the J33 ensures smooth, accurate playback with minimal noise. Supporting both unbalanced consumer line level and balanced mic level outputs, the J33 is ideal for both home audio enthusiasts and professional sound engineers.

Features

• Stereo Phono Preamp and DI Box: Combines a stereo phono preamp with a direct box for versatile audio applications.
• RIAA Response Curve: Ensures accurate playback of 33 RPM long-play records.
• High Dynamic Range: 91dB dynamic range for clear, detailed sound.
• Low Distortion: Total harmonic distortion of 0.002% @ 1kHz.
• Noise Reduction: Equipped with a rumble filter to minimize low-frequency noise.
• Versatile Outputs: Supports both unbalanced consumer line level and balanced mic level outputs.
• Rugged Construction: Built with a 14-gauge steel chassis and outer shell for durability.

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; RCA outs: 470 Ohms
• Equivalent Input Noise: -82dBu @ 0dBu output
• Maximum Input: -30dBu @ 1kHz
• Voltage Gain: +37.8dB