Harrison Audio D510r Rack w/ D510MX – 500 Series 10-Slot Chassis + 500 Series 10×2 Analog Summing Mixer Module

OVERVIEW

ULTRA-FLEXIBLE HARRISON 500 SERIES SYSTEM

The Harrison D510r is an ultra-flexible ten-slot 500 Series rack system with an expandable analog summing mixer, Dante AoIP interface, or USB interface options. Built on a legacy that shaped the sound of legends like Michael Jackson, Led Zeppelin, and Steely Dan, Harrison continues to push the boundaries of music and audio production. Whether in the studio, on stage, or on the big screen, Harrison’s design philosophy remains focused on delivering the sonic excellence and flexibility that modern artists, producers, and engineers need.

HIGH-PERFORMANCE TRACKING RIG WITH ANALOG SUMMING

Bring the depth and three-dimensional soundstage of Harrison’s analog summing to your studio or live sound console with the D510r rack and optional D510mx mixer card. Add eight 32Cpre+ 500 Series mic pre-modules and build the ultimate portable Harrison tracking rig, or combine with EQ and Dynamics modules and create a custom eight-channel Harrison mixer, all in only 3U. Whether it’s a high-performance summing mixer for adding analog warmth to digital stems, summing together discrete outs from a drum machine and sampler, or accessing console-grade recoding performance in a portable tracking rig – the possibilities are endless and can grow with your production requirements one module at a time.

THE ONLY 500 SERIES SYSTEM WITH AN AoIP INTERFACE

The Harrison D510r is the only 500 Series rack to feature an optional Dante interface for easy integration into live sound production and studio facilities that use the Dante AoIP protocol. When paired with the Dante interface, the Harrison D510 system transforms into a multifaceted 500 Series system, seamlessly integrating analog mic pre’s, dynamics, and EQ processing, or any 500 Series modules into your hybrid workflow.

BUILT TO PERFORM

The D510r is built to endure the demands of both touring and studio environments. Its rugged steel enclosure fits seamlessly into a standard 19” rack, ensuring durability on the road and reliability in the studio. With a built-in power supply that delivers 30% more power per module than the standard 500 Series specification, the D510r provides exceptional stability and ample headroom – allowing you to get the most out of your 500 Series modules.

D510MX ANALOG SUMMING MIXER MODULE

By pairing the D510mx mixer module with the D510r, your system transforms into a powerful 10×2 analog summing mixer. Designed to integrate into two slots of the Harrison D510r 500 Series rack, the D510mx gives you the flexibility to create stereo mixdowns from any of the eight remaining 500 Series module slots, alongside the two analog inputs to slots 9 and 10. With level and pan controls on each channel, plus dual independent headphone outputs with ‘blend,’ get the renowned weight and ‘3D’ depth that Harrison analog summing brings to productions while enhancing your headphone monitoring capabilities.

When used in combination with the D510dante audio interface card, the dual headphone outputs can create monitor mixes from either the direct analog output or from any connected device on the Dante network.

With an almost infinite number of configurations, the Harrison D510 rack paired with the D510mx mixer module can create an extremely powerful (and portable) eight-channel tracking system housed in only 3U – we said it was flexible!

KEY HIGHLIGHTS

Complete Harrison Analog Summing System:

By pairing the D510r rack with the D510MX module, you get a fully integrated 10×2 analog summing mixer that brings Harrison’s renowned low-end weight, punch, and 3D depth to your mixes – all in a compact, modular format.

Build Your Own Custom 500 Series Mixer:

Use any combination of mic pres, EQs, and dynamics in the eight available slots to create a personalised eight-channel tracking or summing rig, with level and pan control on every channel for precise mix shaping.

Compact Powerhouse in Just 3RU:

Housed in a rugged 3RU chassis, the D510r w/ D510MX delivers console-grade performance in a highly portable form factor – perfect for studios, mobile rigs, and live applications where space and flexibility matter.

Enhanced Monitoring with Dual Headphone Outputs:

The D510MX features two independent headphone outputs with blend control, allowing flexible cue mixes for tracking sessions and streamlined monitoring during mixing and summing.

Built for Modern Hybrid Workflows:

With support for optional Dante AoIP and USB+ADAT interface cards, the D510r system is designed to grow with your studio – seamlessly integrating analog summing, digital routing, and networked audio when needed.

Road-Ready Harrison Build Quality:

A rugged steel enclosure and a high-current internal power supply delivering 30% more power per slot than standard 500 Series racks ensure stability, headroom, and long-term reliability in demanding environments.

FEATURES

• 10-slot 500 Series rack system
• Compact 3RU, 19” rackmount design
• Includes D510mx analog summing mixer module
• Optional D510 Dante Audio-over-IP interface card
• Optional USB + ADAT interface card
• 10×2 analog summing mixer architecture
• Occupies two slots in the D510r 500 Series rack
• Eight available slots for mic pre, EQ, and dynamics modules
• Stereo mixdown from eight 500 Series module slots
• Two additional analog inputs via slots 9 and 10
• Classic Harrison analog depth, width, and clarity
• Level and pan controls on each summing channel
• Musical -3 dB pan law
• Dual independent TRS headphone outputs with blend control
• High-current internal power supply (170 mA per slot)
• Delivers 30% more power than standard 500 Series specs
• Ultra-low noise and distortion with high headroom
• Designed for hybrid mixing, tracking, and portable rigs
• Rugged steel construction for touring and studio use

TECHNICAL SPECS

Power Input: 50/60Hz / 80-246VAC / 1.8 -0.55A

Power Per Slot: 170ma

Dimensions:

• Length (L): Standard (19”) = 48.26 cm
• Height (H): 3RU (5.25”) = 13.34 cm
• Depth (D): (7.2”) = 18.29 cm

Weight: 11 LBS (5kg)

Inputs & Outputs:

• 10 x Inputs
• 14 x Outputs

D510mx Inputs:

• Minimum Gain: <= -81 dB
  • Noise A-Weighted @ Min Gain: < -87 dBu

• Unity 0 dB
  • THD+N, 1kHz 10 dBu @ Mid Gain: < 0.003%
  • Noise A-Weighted @ No Gain: < -87 dBu

• Maximum Gain: 11.5 dB
  • THD+N, 1kHz 0dBu @ Max Gain: < 0.003%
  • Noise A-Weighted @ Maximum Gain: < -85 dBu

• Maximum Input Level: +24 dBu
• Frequency Response: 20 Hz – 20 KHz +/- 0.25 dB
• Pan – 3dB Pan Law

Optional Dante Inputs (when D510dane interface is installed):

• Maximum Input Level: +24 dBu
• Frequency Response: 20 Hz – 20 KHz +/- 0.25 dB

Main Outputs:

• Maximum Output Level – +24 dBu
• Minimum Gain: <= -85 dB
  • Noise A-Weighted @ Min Gain: < -97 dBu
• Unity 0 dB
  • THD+N, 1kHz 10 dBu @ Mid Gain: < 0.003%
  • Noise A-Weighted @ No Gain: < -87 dBu
• Maximum Gain: 9.5 dB
  • THD+N, 1kHz 10 dBu @ Max Gain: < 0.003%
  • Noise A-Weighted @ Maximum Gain: < -78 dBu

Headphone Outputs:

• Maximum Output Level – +21 dBu
• Minimum Gain: <= -78 dB
  • Noise A-Weighted @ Min Gain: < -87 dBu
• Maximum Gain: 0 dB
  • THD+N, 1kHz 20 dBu @ Max Gain: < 0.004%
  • Noise A-Weighted @ Maximum Gain: < -82 dBu

Signal Metering:

• 3x tri-colour LED signal presence
  • Green: >= -14 dBu, + 4 dBu
  • Orange: >= +4 dBu, +18 dBu
  • Red: >= + 18 dBu

Connectors: 2 x TRS Stereo Headphone Outputs

*Optional D510dante interface card, and USB+ADAT interface card.