Cranborne Audio 500R8

Cranborne Audio 500R8

Cranborne Audio 500R8


The Cranborne Audio 500R8 is a 4U, 19" rack-mountable USB audio interface, summing mixer, and 8-slot 500 series rack designed for versatile studio applications.

Normally ships 1-3 days

Cranborne Audio 500R8: The Central Hub for Your Studio

A Comprehensive USB Audio Interface

The 500R8 serves as a comprehensive USB audio interface that acts as the central hub for your studio. Offering 28-in/30-out USB 2.0 connectivity, it ensures low-latency performance and is compatible with a wide range of PC and macOS devices. The unit's dynamic range of 121dB A-weighted and a frequency response that extends from 2.2Hz to over 80kHz guarantee that your recordings will capture every nuance of the sound. Additionally, the interface is equipped with a master reference-quality internal clock, reducing jitter and improving the overall fidelity of your recordings.

High-Quality Summing Mixer

The 500R8 is equipped with an 8-into-2 analogue summing mixer that features +26.5dBu of headroom and a dedicated ADC. This summing mixer allows you to combine up to 8 USB sources through your 500 series modules, which can then be recorded back into your DAW as a stereo track. The summing mixer is expandable to 16-into-2 using Cranborne Audio's 500ADAT, providing even more flexibility for larger projects. The summing mixer is designed to offer a transparent yet warm summing path for your audio.

Zero-Latency Artist Mixer

The 500R8 includes a zero-latency analogue artist mixer with physical level and pan controls for each channel. This feature is particularly useful for monitoring live sources in real-time without any perceptible delay. It also includes two high-power headphone outputs with independent blend and level controls, allowing for more personalised monitoring setups. The artist mixer is designed to offer a straightforward and intuitive workflow, making it easier for artists to focus on their performance.

Modular 500 Series Integration

The 500R8 can accommodate up to 8 of your favourite 500 series modules, allowing you to customise your signal path according to different recording and mixing scenarios. Each slot comes with dedicated source select switches and TRS insert jacks, providing you with the flexibility to route and integrate your modules with other gear. This modular approach enables you to bring in your preferred preamps, EQs, or compressors into the signal path, making the 500R8 a truly versatile unit in your studio setup.

  • 28-in/30-out USB 2.0 audio interface
    Low-latency USB 2.0 interface with high-stability and compatibility with a wide range of PC/macOS devices.
    ADAT I/O (16/16 channels @ 44.1/48kHz, 8/8 channels @ 88.2/96kHz
    S/PDIF I/O
    5-pin MIDI I/O

  • High-performance A/D conversion
    Dynamic Range: 121dB A-weighted, AES17 method, 20Hz - 20kHz
    Frequency Response: -1dB, 2.2Hz to >80kHz
    THD+N: Max Input Level: +24dBu

  • High-performance D/A conversion
    Dynamic Range: 121dB A-weighted, AES17 method, 20Hz - 20kHz
    Frequency Response: -1dB, 61kHz
    THD+N: Max Output Level: +24dBu

  • Master reference-quality internal clock
    Capable of 44.1, 48, 88.2, 96, 176.4, and 192kHz operation
    Dedicated Word Clock Input and Output via BNC
    External sync options using Word Clock BNC, S/PDIF, or ADAT

  • Monitor controller with talkback
    Speaker A/B switching, Mono check, Dim, Mute, and 28-segment peak meter
    Dedicated talkback input with phantom power, push-to-talk activation, and automatic routing to all headphone and C.A.S.T. facilities
    Easy-access illuminated front panel controls for all monitor controller functions.

  • Analogue summing mixer
    8-into-2 analogue summing mixer with +26.5dBu of headroom, dedicated ADC, and balanced 1/4" jack outputs
    C.A.S.T. link port for increasing summing mixer to 16-into-2 using Cranborne Audio 500ADAT

  • Zero-latency artist mixer
    Zero-latency analogue artist mixer with physical level/pan controls per channel and DAW return blend controls
    2 high-power headphone outputs with independent blend and level controls

  • Reference-Quality Headphone Outputs
    THD+N: Output Wattage (1kHz): 250mW x 2 @ 600 ohms, 650mW x 2 @ 220 ohms, 1.21W x 2 @ 100 ohms, 500mW x 2 @ 32 ohms
    Frequency Response: 1dB, 70kHz

  • High-current 8-slot 500 series rack
    250mA current per-slot with 2A total for all slots
    XLR inputs, XLR line outputs, and TRS Inserts (pre-ADC) per 500 series slot
    Module source switching options to send Analogue, USB or external C.A.S.T. signals through your favourite 500 series modules
    Module bypass switches per-slot allowing 500R8 to be used without 500 series modules inserted.

  • C.A.S.T. Compatible
    C.A.S.T. ports per channel for relocating analogue I/O around studio using passive or active C.A.S.T. breakout boxes via standard shielded Cat 5

  • 24v, 5a 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 500R8 is extensively tested by a team of dedicated engineers to ensure reliability and consistency.
Specification Category Details
Digital Performance  
A/D Conversion 121dB A-weighted, 20Hz - 20kHz
Frequency Response (A/D) -1dB, 2.2Hz to >80kHz
THD+N (A/D) <0.00032% (-110dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted
D/A Conversion  
Frequency Response (D/A) -1dB, <1Hz to >61kHz
THD+N (D/A) <0.0003% (-110.5dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted
Analogue Performance  
Line Outputs 105dB A-weighted, 20Hz - 20kHz
Max Output Level (Line) <+22dBu
Summing Mixer  
Frequency Response (Summing) -1dB, 2.25Hz to >80kHz
THD+N (Summing) <0.0007% @ +23dBu (-1dBFS), 1kHz
Headphone Amp  
Frequency Response (Headphone) -1dB, <1Hz to >70kHz
THD (Headphone) <0.0006% (-104.4dB) @ 20dBu, 1kHz, A-weighted, 300ohm load
AC Requirements 100V – 240V AC, 50 – 60 Hz
Operating Temperature +1 to 30 degrees Celsius
Unit Dimensions Width: 481mm(19"), Height: 185mm(7"), Depth: 219m(8.6")
Unit Weight 7kg

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