Radial Engineering

Radial Engineering R800 1300 J33 Turntable Preamp DI Box

4.7 (14 reviews)

Enhance Your Vinyl Experience with the Radial J33 Turntable Preamp DI The Radial J33 is a premium 2-channel active turntable preamp and direct box designed to connect your 33-RPM record player directly to professional mixing consoles or mic preamplifiers. Ideal for studio re-recording, sampling, ...

$259.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Enhance Your Vinyl Experience with the Radial J33 Turntable Preamp DI

The Radial J33 is a premium 2-channel active turntable preamp and direct box designed to connect your 33-RPM record player directly to professional mixing consoles or mic preamplifiers. Ideal for studio re-recording, sampling, archiving, and DJ performances, the J33 ensures improved sound quality and seamless integration.

Key Features:

  • Inputs: Stereo RCA
  • Outputs: Stereo RCA, Balanced mic level XLR
  • Special Feature: Low frequency rumble filter
  • Power: 48V phantom or local external DC supply
  • Color: Black
  • Compatible Devices: Turntable
  • Connector Type: XLR, RCA
  • Output Wattage: 30 Watts
  • Power Source: Corded Electric

Key Features

Active Combination Stereo RIAA turntable Preamp Direct Box

PSU Included

Specifications

Type
Active Combination Stereo RIAA Turntable Preamp Direct Box
Included Accessories
PSU
Brand
Radial Engineering
Model
J33

Pros & Cons

👍 Pros

  • Functions as an active combination stereo RIAA turntable preamp, providing essential signal conditioning
  • Also serves as a Direct Box, offering versatile connectivity options for audio setups
  • Comes with a power supply unit (PSU) included, so no separate purchase is needed for power
  • Designed for integration into various audio environments, particularly with turntables
  • Helps optimize the signal from a turntable for connection to mixers or other audio interfaces

👎 Cons

  • Specifically designed for turntables, limiting its application to other audio sources
  • Features are focused on RIAA equalization and direct box functionality, not broader audio processing
  • The number of inputs/outputs or specific connector types are not detailed in the features
  • Potential size or weight, which could impact placement, is not specified

Frequently Asked Questions

The Radial Engineering J33 is an active combination stereo RIAA turntable preamp and direct box, designed to interface turntables with professional audio equipment.
Yes, a power supply unit (PSU) is included with the Radial Engineering R800 1300 J33 Turntable Preamp DI Box.
Yes, as a preamp direct box, it can connect a turntable directly to a mixing console, converting the phono signal to a balanced line level.
Yes, it functions as an RIAA turntable preamp, providing the necessary equalization curve for vinyl record playback.
While the features suggest it's suitable for various audio environments, its primary function as a DI box makes it applicable for both studio recording and live sound setups.
Yes, the Radial Engineering J33 is described as a stereo RIAA turntable preamp, indicating it provides stereo output.