Cranborne Audio 500R8 500 Series Chassis

Studio in a Rack

The Cranborne Audio 500R8 is, essentially, a studio in a rack. It’s an 8-slot high-current 500 Series chassis, a 28-in/30-out USB interface, an analog summing mixer, a zero-latency artist mixer, and a monitor controller — everything you need to build your dream hybrid analog/digital studio. The 500R8 is fitted with high-performance AD/DA conversion, reference-grade headphone amplifiers, a reference-quality master clock, and more. In fact, there’s very little you can’t do with the Cranborne Audio 500R8. Configure it to suit your preferred analog flavoring for any source. Pack it with vintage-style 500 Series preamps for recording drums; clean, pristine preamps for vocals; and EQ, compression, and saturation modules when it’s time for mixdown.

USB audio interface

Connect the 500R8 directly to your Mac or PC via USB, and utilize the 500R8’s onboard 28-in/30-out USB audio interface for recording and playback directly to and from your digital audio workstation of choice.

Discrete summing mixer

Give your mix the crowning touch of analog character by sending submixes and stems back through your 500 Series modules, into the 500R8’s discrete analog summing mixer, and back into your DAW.

Monitor controller

Use the 500R8’s onboard high-headroom monitor controller to switch between two sets of speakers, toggle mono sum, mute, dim, and talkback functions while monitoring the peak level of your mix on the high-resolution 28-segment LED meter.

Audiophile headphone amps and zero-latency artist mixer

Drive any headphones with 500R8’s two reference-grade headphone amplifiers. They have enough power to drive low-impedance headphones with gobs of headroom and a linear frequency response to below 1Hz! Use the 500R8’s two aux buses to create pristine analog cue mixes that you can blend with DAW playback and send to the talent with zero latency.

World-class conversion and clocking

For the musician who wants to get down to business, it may be hard to get excited about conversion and clocking. But engineers at Marshall Music get to check out the best of them — and we’re amped about these converters. They’re touted as best in class and flaunt truly impressive specs, such as less than 0.5 picoseconds of jitter. But none of that really matters when you hear the fullness of your stereo image bloom with jaw-dropping sonic clarity.

Connect the 500R8 to your macOS or Windows computer and capture every nuance of your sources with reference-grade AD/DA conversion and world-class internal clocking. Effortlessly pass audio between analog and digital worlds without the digital artifacts that color, cloud, and degrade your recordings. The only coloration you will hear is intentional — your microphone placements, mixing decisions, and the 500 Series modules you’ve chosen to use. And with word clock I/O, you can even share the 500R8’s world-class clocking with the rest of your digital gear.

Ample I/O and configurable front end

The 500R8 has generous I/O to integrate with all of your analog and digital hardware, so you can mix and match your 500 Series modules and find the best combinations during recording and mixing to help create your own signature analog sound. You can even integrate your 19-inch rack units via the 500R8’s dedicated per-slot TRS insert jacks.

C.A.S.T. away

Spec’d with Cranborne’s innovative C.A.S.T. system, the 500R8 does away with excess cable spaghetti, delivering a cost-effective, low-maintenance, plug-and-play solution by transmitting four channels of balanced analog audio over shielded Cat 5 Ethernet cable directly to the destination of your choice.

Handy source select

Repatch your 500R8 at a flick of a switch. Dedicated source select switches for each 500 Series slot adjusts signal routing to send analog, C.A.S.T., or USB sources through each of your modules. Unused 500 Series slots? Bypass them using the 500R8’s dedicated slot-bypass switch.

Expandable — in the studio or on the road

When you’re ready for additional 500 Series connectivity, connect your 500R8 with Cranborne Audio’s 500ADAT via ADAT for 16 channels of 500 Series modules. Housed in a 19-inch 4U rackmountable rugged steel frame, the 500R8 makes an ideal 500 Series chassis for mobile recording setups. Packed with cool, useful features, the Cranborne Audio 500R8 is one of the more innovative pieces of pro audio gear we’ve seen at Marshall Music. Trust us — you will be impressed.

Cranborne Audio 500R8 500 Series Chassis and USB Audio Interface Features:

• 28-in/30-out USB interface, summing mixer, artist mixer, and monitor controller
• C.A.S.T. ports per channel for routing analog I/O using passive or active C.A.S.T. breakout boxes via standard Cat 5 cable
• 24-volt, 5A external locking power supply for improved analog audio performance and heat dissipation
• Each 500R8 is extensively tested by a team of dedicated engineers to ensure reliability and consistency
• Low-latency USB 2.0 interface:
• Compatible with macOS and Windows computers
• 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 dynamic range, 20Hz–20kHz
• Frequency response: 2.2Hz to >80kHz (-1dB)
• THD+N: <0.00032% (-110dB) @ -4dBFS, 20Hz–40kHz (1kHz, A-weighted)
• Max input level: +24dBu
• High-performance D/A conversion:
• Dynamic range: 121dB A-weighted, 20Hz–20kHz
• Frequency response: <1Hz to >61kHz (-1dB)
• THD+N: <0.0003% (-110.5dB) @ -4dBFS, 20Hz–40kHz (1kHz, A-weighted)
• Max Output Level: +24dBu
• Reference-quality internal master clock:
• Sample rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz; <0.5ps jitter
• Dedicated word clock I/O 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
• Illuminated front-panel controls for all monitor controller functions
• Analog summing mixer:
• 8×2 analog summing mixer with +26.5dBu of headroom and dedicated ADC
• Balanced 1/4-inch jack outputs
• C.A.S.T. link port for increasing summing mixer to 16×2 using Cranborne Audio’s 500ADAT
• Zero-latency artist mixer:
• Analog artist mixer with per-channel physical level/pan controls and DAW return blend controls
• 2 high-power headphone outputs with independent blend and level controls
• Reference-grade headphone amplifier:
• THD+N: <0.0006% (-104.4dB) @ 20dBu, 1kHz A-weighted, 300-ohm load
• 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: <1Hz to >70kHz (1dB)
• High-current 8-slot 500 Series rack:
• Per-slot current: 250mA , 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 analog, USB or external C.A.S.T. signals through 500 Series modules
• Per-slot module bypass switches allowing 500R8 to be used without 500 Series modules installed

Learn more about Cranborne Audio

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