Radial J33 RIAA Turntable Preamp and DI

Active stereo phono preamp and direct box

Phono Preamp and Active DI



12-Month Special Financing**

SKU: RADR8001300 Categories: , , Tag Brand:


The Radial J33 is a combination RIAA turntable preamp and active direct box that allows long-play vinyl albums (LP’s) to be played directly through a professional microphone preamp in a mixing console. The J33 is ideally suited for archiving, sampling, scratch performances, and DJ mixing when the highest possible sound quality is required.

The Radial J33 is designed for moving-magnetic (MM) cartridges and features a stereo pair of RCA inputs and a choice of RCA stereo line-level outputs (-10dB, hi-Z) or balanced stereo XLR outputs (mic-level, 600Ω). This arrangement makes the J33 incredibly flexible. It can feed a hi-Z input such as a DJ system, and a low-Z input such as a pro-mixing console at the same time. It can be used solely as an RIAA preamp with hi-fi equipment or as an RIAA preamp and direct box combo.

The J33 may be powered with 48V phantom when used with mixing consoles, or with the included power supply when phantom is not available. The J33 is housed in a heavy-duty welded I-beam inner enclosure that makes it impossible to torque the PC board. The outer shell features a book-end design that protects the connectors and switches. Lasts a lifetime and sounds great.


  • RIAA EQ curve for proper playback response
  • RCA and balanced XLR output options
  • Rumble filter stops low-frequency feedback
  • Powered by 48V phantom or external supply


  • Designed for moving-magnetic turntable cartridges
  • Pro DJ touring and nightclubs
  • Archiving vinyl records
  • Recording digital samples from vinyl
  • Recording scratch performances

Cool stuff

  • Eliminates need for DJ mixer
  • RIAA preamp and active DI in one box
  • Can be used as hi-fi turntable preamp
  • Lets you connect your turntable to anything!
  • Low-Z out will drive signals 300 feet!
  • Ultra-tough construction, lasts a lifetime

Additional information

Weight 3 lbs
Dimensions 11 × 5 × 3 in

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On qualifying purchases made with your Westlake Pro credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 12 Months. Minimum monthly payments required.

**No interest will be charged on the promo purchase if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo purchase from the purchase date. The required minimum monthly payments may or may not pay off the promo purchase by the end of the promo period. Regular account terms apply to non-promo purchases and, after the promo period ends, to the remaining promo balance. For new accounts: Purchase APR is 29.99%. Minimum interest charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

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