500ADAT Front


ADAT Expander, Summing Mixer,
& 8-slot 500 series Rack
∙8in/8out ADAT Interface
  • Ultra low-latency ADAT Interface with SMUXII/IV transport.
  • 8 channels at 44.1-96kHz, 4 channels at 192kHz.
∙High-performance AD/DA conversion
  • ADCs = 121dB (unweighted) signal-to-noise ratio and - 112dB THD+N.
  • DACs = 127dB (unweighted) signal-to-noise and -115dB THD+N.
  • 0dBFs = 26.5dBu for huge headroom when recording and the ability to drive modules for a wider range of effects.
∙Master reference-quality internal clock
  • Capable of 44.1, 48, 88.2, 96, and 192kHz operation.
  • Sub 0.5 picoseconds of jitter. 
  • Dedicated Word Clock Input and Output via BNC.
  • External sync options using Word Clock BNC, or ADAT.
∙Analogue summing mixer
  • 8-into-2 analogue summing mixer with 26.5dBu of headroom and dedicated balanced 1/4" jack outputs.
  • CAST link port for increased expandability when used with Cranborne Audio 500R8 (sold separately).
∙Zero-latency artist mixer 
  • Zero-latency analogue artist mixer with physical level/pan controls per channel and Aux Input blend controls.
  • 2 high-power headphone outputs with independent blend and level controls
∙High-current 8-slot 500 series rack
  • <250mA current per-slot with headroom.
  • XLR inputs, XLR line outputs, TRS Inserts (pre-ADC) per 500 series slot.
  • Module source switching options to send Analogue, ADAT or external CAST signals through your favourite 500 series modules.
  • Module bypass switches per-slot allowing 500ADAT to be used without 500 series modules inserted.
∙CAST Compatible
  • CAST ports per channel for relocating analogue I/O around studio using passive or active CAST breakout boxes via standard shielded Cat 5 (boxes coming soon).
∙24v, 5 amp external locking power supply
  • External power supply for improved analogue audio performance and heat dissipation.
∙Designed, Engineered, and Manufactured In The UK
  • Each and every 500ADAT is extensively tested by a team of dedicated engineers to ensure reliability and consistency.

Thanks for checking out the user manuals tab. We're still working on all the user manuals at the moment - they've got to be right! - but as soon as they are finished, we will make sure they are available for you all to see.

Expand your studio. Expand your sound.

500ADAT is the best way to expand your ADAT equipped audio interface and enjoy the sonic possibilities of the 500 series format as your very own customisable analogue front-end for recording.

ADAT Simplicity

500ADAT combines cutting-edge digital performance with tried-and-tested ADAT. Utilising high-end converters with 121dB (unweighted) signal-to-noise ratio and ultra-low jitter (<0.5 picoseconds) internal clocking ensures that every subtle nuance of your analogue signal is captured perfectly and sent via ADAT to an interface of your choice.
500 Series Possibilities
500ADAT combines a high-current 8-slot 500 series chassis with digital conversion and ADAT - a powerful and accessible way to get your favourite analogue 500 series preamps, compressors, and EQs into your tracking and mixing digital workflow.

ADAT And Beyond



Transform your ADAT-equipped audio interface into an analogue powerhouse by adding up to 8 channels of expansion at up to 96kHz or 4 channels of expansion at 192kHz - whilst utilising the 500 series standard.


Zero-Latency Artist Mixer

Move away from clunky software mixers and get your hands back onto the mix by using 500ADAT's two aux busses to create pristine-sounding analogue artist mixes that can be blended with DAW playback, and sent to your musicians with zero-latency.


Discrete Summing Mixer

Give your mix the final bit of analogue character and send instrument groups and stems back-through your 500 series modules and into the discrete analogue summing mixer to be sent back into your DAW.

World-Class Digital Performance

To create a "studio in a box" where your favourite 500 series modules could shine on your digital recordings, it was critical to ensure our digital conversion and analogue processing is best-in-class. We squeezed every possible .1dB of performance out of 500ADAT to achieve digital and analogue performance that ensures that the only thing colouring your recordings are mic placements and mix decisions.

AD/DA Performance

The implementation of our ADCs result in 121dB (unweighted) signal-to-noise ratio and - 112dB THD+N whilst our DACs achieve 127dB (unweighted) signal-to-noise and -115dB THD+N. Our analogue design stages operate at between 0.0002-0.0004% THD+N to ensure that the only factors influencing the converters' dynamic range are the converters themselves and not the supporting analogue circuity.

Master Reference-Quality Clock

A/D and D/A numbers don't tell the whole story. Converters are only as good as the clocks that are governing them. Our internal digital clock reaches atomic-clock level accuracy, for master reference-quality with < 0.5 picoseconds of jitter. Our designs feature isolated analogue and digital ground planes and power rails so that our digital elements receive accurate clocks and our analogue signals are noise- and distortion-free.

Deep 500 Series Integration


Configurable Front-End

Utilising the 500 Series standard as a your own front-end puts you back in control of exactly how audio is received and processed before being sent to the DAW. Mix and match to find the best preamp combinations during recording, and then swap them out with EQ's and comps when it's time to mix.


Source Select

Each 500 series slot has 3 source select options; Analogue, CAST, and ADAT. Selecting ADAT allows the 500 series module to pickup audio incoming via the ADAT stream, process it in analogue, and then send it back into the ADAT outputs for recording. There's also a Chain switch that allows you to create custom channel strips of your favourite modules.


Tons Of I/O

An abundance of Inputs and outputs allows 500ADAT to integrate with a number of hardware components around your studio. Combine 500ADAT's analogue performance with your own converters or patch outboard gear into each 500 series slot using dedicated TRS insert jacks. Every mix bus has a dedicated output too.


To get the best results out of a studio, sometimes you need to explore the space.
Perhaps that hallway has the perfect ambience for acoustic guitar, or the airing cupboard is the perfect vocal booth; being able to exploit those spaces can make the difference between great audio capture and perfect audio capture.
By using our C.A.S.T. system, you can extend the I/O of 500R8 up to 100m away from your control room using a single cat 5 cable.R8+1_N22H_Square_LoRes_WhiteConnect one of our N22H into 500ADAT's C.A.S.T. Input connectors and then mic/line sources connected to N22H’s inputs are sent directly to the interface's inputs ready for recording via C.A.S.T. Meanwhile, a stereo monitor mix generated by 500ADAT is carried down the same C.A.S.T connection and directly into N22H’s high-powered headphone amplifier and dual ¼” jack line outputs for zero-latency analogue monitoring.
Use multiple N22 or N22H breakout boxes and then you can turn your home studio into a complete mutli-room complex.

N22 N22H
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Brothers In Arms


500ADAT is the perfect companion for your existing audio interface. With an abundance of popular interfaces offering ADAT connectivity, any existing studio can use 500ADAT to integrate 500 series connectivity into their recording and mixing chain utilising their unused ADAT ports. But If you demand the same high-quality in your audio interface as you have become accustomed to with 500ADAT; our 500R8 is the perfect choice - and it features even deeper integration than you could achieve elsewhere.

Connect 500ADAT and 500R8 via CAST and talkback and artist monitoring is linked between the two to allow musicians connected to 500ADAT to hear talkback and input sources from 500R8 and vice versa.

Learn more about 500R8:
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Portable, Dependable, And Made In The UK


Housed in a 4U, 19" rack mountable steel frame, 500ADAT lends it self perfectly to mobile recording setups.

We designed 3 rack-ear orientations that allow 500ADAT to be protected in a number of applications. You can recess 500ADAT into its rack ears to protect the front panel controls during travelling; you can also take those same rack ears and re-orientate them to become a carry handle.

As with all Cranborne Audio equipment, 500ADAT is designed, engineered and manufactured in the UK to ensure that every product that leaves our UK factory has met our stringent test routines and will provide years of trouble-free, and dependable service.