Welcome to RTZ Professional Audio

Manufacturer of professional audio equipment for studio and recording applications.

9762 Dual-Combo

The 9762 Dual Combo is our flagship preamplifier with legendary credentials and was our first product entering in the 1U rack space arena. The 9762 has gained respect over the years as a top notch preamp with solid features and sound quality. If your in the market for a high end preamp to expand your recordings, give the 9762 a serious listen and you'll discover what legends are made of!


The Legends 500 Series!

The Legends 500 series is our new line of products for the popular 500 format. We are very excited to offer this new line of products and look forward to introducing more new products in 500 format soon.

  • 9762A

    9762A Preamplifier

    The 9762 in now available in the 500 format! This is the full implementation with a newly designed 100Hz high pass filter added. We've also expanded the VU meter and improved the signal metering. Now you can get the same legendary 9762 sound at an affordable price in the popular 500 series module format.

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  • PEQ1549

    PEQ1549 Parametric Equalizer

    The ultimate sounding R/C op-amp based equalizer from with legendary British roots. The PEQ1549 includes HP and LP filter sections along with a four band parametric EQ all squeezed into the 500 format. This EQ is nothing short of GIANT sounding with huge sound shaping capabilities.

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  • UX410

    UX410 Rack Chassis

    The UX410 is our heavy duty 500 Series compatible rack system in the works. Each UX410 rack holds up to ten 500 series compatible modules and is powered by a super clean external 5A DC linear power supply that can power up to three UX410 racks.

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  • PSL410

    PSL410 Single Rack Power Supply

    The PSL410 is a heavy duty all linear power supply designed to power a single UX410 rack at continous duty. Each PS410 provides up to 1.5A maximum continous current and continous duty. The PSL410 also has switchable 48V phantom power and a low noise thermally speed controlled fan.

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  • PS410

    PS410 Three Rack Power Supply

    The PS410 is a heavy duty linear power supply designed to power three UX410 racks. Each PS410 provides up to 4.5A maximum current and can power up to three UX410 racks. The PS410 may be ordered with or without the 48V phantom supply.

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The Latest News

  • 10/10/14 - PEQ-1549 REVIEW IN PAR! Checkout out Russ Long's PEQ-1549 Review, in Pro Audio Review. We're really excited and honored to receive this review. Many thanks to folks at PAR for reviewing our unit!
  • 08/26/14 - 9762A NOW SHIPPING! We just shipped the very first two 9762A units to Pepper's Pro Shop, our dealer in Nashville. These units will trickle out initially based on demand. Contact a dealer and get your 9762A on order today!
  • 05/06/14 - RTZ AT SUMMER NAMM RTZ will be at the 2014 Summer NAMM trade show in Nashville on July 17-19. We'll be in Exhibit Halls A & B at booth #559. Please drop by and see us if you plan to attend!
  • 01/18/14 - 9762A FOR 500 FORMAT! We're proud to introduce the 9762A for the 500 format. This module contains the same transformers and amplifier designs as our original 19" 1U rack unit. Now you can get the same legendary sounds as the original 9762 in a 500 compatible module!
  • 09/21/13 - PEPPERS PRO AUDIO! Our recent trip to Nashville was a blast and we added Pepper's Pro Shop to our dealer lineup. Pepper will serve as our primary dealer in the Nashville area, so give him a shout if your interested in checking out any of our gear.
  • 08/31/13 - SLACK KEY STUDIOS DEMO! RTZ will be traveling to Nashville on Sept-19 for an in-studio demo and listening test of the PEQ-1549 equalizer at Randy Kohrs Slack Key Recording Studio. Special thanks to Randy for kindly offering to host this event at his facility. Looking forward to a road trip and a good time with studio and gear lovers in Nashville.
  • 05/28/13 - ATLANTA PRO AUDIO! We're back with Atlanta Pro Audio serving as our local dealer for the new Legends 500 Series and the 9762! Give Chick or the fine folks at Atlanta Pro a call today if your in need of recording gear or just want to check out the new RTZ lineup.
  • 04/16/13 - LUNCHBOX AUDIO! We've just signed up LunchBox Audio as our new dealer for the Legends 500 Series of products! These products will be sold exclusively through dealers only. So, give them a shout if you are interested in our new 500 Series products.
  • 03/10/13 - FIRST PEQ-1549 UNITS! The first few production units of the PEQ-1549 are finally coming together. We hope to start shipping units in a few more weeks soon as the units pass initial testing. More details coming very soon!
  • 12/23/12 - LEGENDS 500 RAMPING UP! The UX410 is almost ready for production and the metal work has been through a second round of revision tweaks. Currently we're assembling the first PS410 power supplies and will begin testing these right after the holidays. Check back soon!