Radial J33 | RIAA Turntable Pre-amp and DI

The Radial J33 is a versatile and robust RIAA turntable preamp and active direct box designed to elevate your vinyl listening and recording experience. This professionally crafted device is perfect for those who demand high-quality sound reproduction, whether you are archiving your vinyl collection, performing scratch routines, or integrating your turntable setup with a DJ system. The J33 allows long-play vinyl albums (LPs) to be played directly through a professional microphone preamp in a mixing console, making it an indispensable tool for audiophiles and professionals alike.

Designed exclusively for moving-magnetic (MM) cartridges, the Radial J33 features a stereo pair of RCA inputs along with both RCA stereo line-level outputs (-10dB, hi-Z) and balanced stereo XLR outputs (mic-level, 600Ω). This dual-output capability ensures maximum flexibility by allowing connectivity to both high-impedance (hi-Z) inputs such as DJ systems, and low-impedance (low-Z) professional mixing consoles simultaneously. Whether you need an RIAA preamp for hi-fi equipment or a combination preamp and direct box, the J33 delivers exceptional audio quality for all your needs.

The J33 can be powered using 48V phantom power when connected to a mixing console or with the included external power supply if phantom power is unavailable. Built for durability, it features a heavy-duty welded I-beam inner enclosure that prevents torque on the PC board as well as a book-end outer shell design that protects its connectors and switches, ensuring it lasts a lifetime while delivering unparalleled audio fidelity.

Key Features

• RIAA EQ curve for proper playback response
• RCA and balanced XLR output options
• Rumble filter to eliminate low-frequency feedback
• Powered by 48V phantom or external power supply
• Eliminates the need for a DJ mixer
• Combines an RIAA preamp and active DI in one unit
• Can be used as a hi-fi turntable preamp
• Allows turntable connection to virtually any system
• Low-impedance output capable of driving signals up to 300 feet
• Ultra-tough construction ensures longevity

Specifications

• Type: RIAA Turntable Pre-amp and DI
• Cartridge Compatibility: Moving-Magnetic (MM)
• Inputs: Stereo RCA
• Outputs: RCA stereo line-level (-10dB, hi-Z), Balanced stereo XLR (mic-level, 600Ω)
• Power: 48V phantom or external power supply
• Construction: Heavy-duty welded I-beam inner enclosure with book-end outer shell

Package Contents

• Radial J33 RIAA Turntable Pre-amp and DI
• External power supply
• User manual