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Cranborne Audio - 500R8 500 Series interface/rack

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Product Description


Studio centerpiece including 28-in/30-out USB interface, summing mixer, 8-slot 500 series rack, artist mixer and monitor controller

The Cranborne Audio 500R8 is the centerpiece to the modern studio. It's an analog/digital hybrid USB audio interface that combines analog characteristics with digital precision by offering a completely customizable 500 series analog front-end as well as an abundance of high-performance AD/DA conversion that is required for the modern DAW-based workflow.

It also features all of the studio essentials you need such as a comprehensive monitor controller with talkback facility, 16 channel ADAT interface, Zero-latency artist mixer, and 8-into-2 analog summing mixer.


500R8 puts performance capture back at the heart of your recordings and back into the hands of the audio engineer. By capitalizing on the vast and ever growing 500 series market, 500R8 allows you to configure your own custom analog front-end directly into your DAW for recording. Fill 500R8 full of vintage preamps for recording drums, clean and pristine preamps for recording strings, or even create you own Preamp/EQ/Compressor channel strips and commit those to your recording; the possibilities are endless.

500 series integration doesn't stop once the performance has been captured... Dedicated USB source-select switches for each 500 series slot allows you to send your recorded stems/VSTs back through your 500 series EQs/Compressors and print their effects back into your DAW for hands-on, all-analog processing. 500R8 also features an 8-into-2 high-headroom analog summing mixer that you can use to sum your instrument stems into a stereo track to be recorded back into your DAW using a dedicated stereo ADC.


Having a near-limitless selection of analog preamps to pick from would be pointless if 500R8's conversion applied its own color and effects. In order to capture every subtle nuance of your analog signal, 500R8 features reference-class analog-to-digital conversion with 121dB (unweighted) signal-to-noise ratio and a master-reference grade internal digital clock with ultra-low jitter (<0.5 picoseconds). The combination of highly-accurate, low-jitter clocking and high-performance, low-latency digital conversion ensures that every ounce of analog character is captured with the utmost detail - free of unwanted digital artifacts from the conversion process and with a wide dynamic range thanks to 500R8's high-headroom and low-noise floor analog design.


Cranborne Audio's USB 2.0 audio interface implementation provides the high channel-count requirement at the lowest possible latency whilst still being accepted by all major recording devices with unparalleled stability and longevity. 500R8 is core audio compliant for Mac and features a lightweight control panel for Windows machines that absorbs as little resources as possible to leave you with more power for plug-ins in your DAW.

In the interest of being compatible with the widest range of devices, 500R8 also includes a full compliment of 5-pin MIDI I/O, Word Clock I/O via BNC, and S/PDIF I/O at sample rates up to 192kHz.


Hearing how your mix translates on a wide range of reproduction mediums is a crucial part of a modern studio environment. To facilitate this, 500R8 features a comprehensive monitor controller with a ultra high-headroom (26.5dBu) balanced speaker A Output, a discrete speaker B output, and seamless speaker switching between the two. There's also a Mono button that sums L-R channels to check for mono compatibility, a DIM switch that drops the control room output for relaxed discussions during recordings, and a speaker mute switch for when you are tracking in the control room with headphones.

500R8 also features a comprehensive Talkback section with XLR input, 48v phantom power, push-to-talk operation, and automatic signal routing to all CAST and headphones outputs connected to the system.


500R8 moves away from clunky "virtual" mixers and gets your hands back onto the mix by using a high-headroom analog summing mixer to create zero-latency, all-analog artist mixes that can be blended with the one of two discrete DAW playback paths and sent to your musicians via CAST or the local headphone outputs.


Analog summing can give your mix the final bit of analog character required to achieve professional and polished sonic results. What makes 500R8's 8-into-2 channel summing mixer so special is that it is positioned after the 8 500 series slots - allowing you to insert saturation or subtle 'bus-compression' modules and create a stereo mix using dedicated analog level and pan controls. 500R8's summing mixer also has a dedicated ADC which can be used to send your stereo mix into your DAW with a massive 26.5dBu of headroom.


CAST stands for Cat5 Analog Snake Transport and enables cost effective and organized cable management around your studio by repurposing off-the-shelf shielded Cat5 Networking cables to transport 4 channels of balanced analog audio (mic, Line, or Instrument level) over a single cable.

500R8 has 4 CAST In ports that allow you to connect any of Cranbourne's breakout boxes (to be announced soon) and place analog I/O where you need it - whether it's in the live room, vocal booth, or the bedroom next door.

Cranbourne's clever impedance matching means that the signal quality can exceed that of a mic cable for a fraction of the price and over a distance of up to 100m. CAST is 100% analog and requires ZERO setup. Plug one end of the cable in one box, and the other end into 500R8 and it just works. No setup. No latency. No fuss. And it sounds great.


To ensure that every product bearing the Cranborne Audio name is worthy of studio environments big or small, all 500R8's are manufactured in the UK under the company's founders and their watchful eye's. 500R8 is carefully assembled by a skilled workforce with immense attention to detail and each and every product is tested thoroughly by a skilled engineer before shipping to destinations around the world.


  • 28-in/30-out USB 2.0 audio interface
  • High-performance AD/DA conversion
  • Master reference-quality internal clock
  • Monitor controller with talkback
  • Analog summing mixer
  • Zero-latency artist mixer
  • High-current 8-slot 500 series rack
  • CAST Compatible
  • 24 V, 5 amp external locking power supply
  • Designed, Engineered, and Manufactured In The UK

STL Pro Audio is very proud to announce that we are now the exclusive distributor for Cranborne Audio in New Zealand.

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Product Videos

Cranborne Audio 500R8 | Quick Overview 03:17

A complete studio in a box, 500R8 is the perfect way to integrate your favourite analogue equipment into your DAW-based workflow. Featuring an 28in/30out USB audio interface, analogue summing mixer, monitor controller, zero-latency artist mixer, and 8-slot 500 series rack, 500R8 is a lot more than the sum of its parts, it transforms your studio workflow and ensures your music sounds as good as it should. This video is a brief overview of what 500R8 can do. For more information, go to the Cranborne Audio website: Special thanks to Matt Milligan for creating the music on this video using nothing but the Teenage Engineering OP-Z.

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    A complete studio in a box, 500R8 is the perfect way to integr...

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