Cranborne Audio 500R8 Manuale utente
500R8 - Analogue/Digital Hybrid USB Audio
Interface, Summing Mixer, and 500 Series Rack
User Manual
500R8 User Manual -Page 1- ©2019 Cranborne Audio Ltd
Welcome to our family
Cranborne Audio represents a commitment by four product designers to build an audio brand
that does things the right way. We don’t take shortcuts. We don’t compromise. We don’t
accept “good enough.”
We’re just like you. We’re musicians. We’re audio engineers.
We make products that we want to use. We create, innovate, and design with passion,
purpose, and belief. We strive to design products that remain accessible whilst offering the
highest quality and truly innovative new ways of working and achieving that sound that we all
desire.
Cranborne Audio, for us, means so much more than metal boxes with components in them.
These are our labours of love that embody and demonstrate our demand for excellence. By
distilling what matters and putting our soul into these tools, we hope to help other people
make magic and express themselves, and in some way, become part of our Cranborne Audio
family.
So welcome to our family. We care for our family. And we care about making your tracks,
albums, scores sound as good as they should.
500R8 User Manual -Page 2- ©2019 Cranborne Audio Ltd
Cranborne Audio 500R8
Congratulations on your purchase of the Cranborne Audio 500R8 and thank you for selecting
Cranborne Audio to be a part of your music creation process.
What we set out to achieve with 500R8 was to put control back into the hands of musicians
and engineers. In a sea of products that rely on computer integration and a “virtual emulation”
mentality, we set out to offer an alternative that places a true, customisable, and flexible
analogue front-end at the forefront of music creation - after all, the feel and touch of a
musician is analogue and that’s where the music begins.
We adopted the widely loved 500 series format as a method to allow you as the engineer to
decide exactly what analogue circuit you would like to use for any particular source. We then
combined it with the very best of the modern essentials found in every home, project, and
professional studio around the world.
Not only is 500R8 the new home for 8 of your favourite 500 series modules; it is also your new
26-in/28-out channel USB audio interface, monitor controller, 16-in/16-out ADAT interface, and
8-to-2 high-headroom analogue summing mixer.
When digital is required, each and every component inside 500R8 has been carefully
considered to ensure that every nuance of your 500 series modules are translated into the best
possible digital signal to be processed. We employ converters with specifications that would
rival that of standalone units costing twice the price of 500R8 and it’s all governed by our
master reference-grade clock that features less than 0.5 picoseconds of jitter.
To top it all off, each and every 500R8 is proudly made with the utmost care and attention to
detail by our team in the UK. The beauty of this is that each and every product can undergo
our strict quality-control to ensure that every product meets our spec without having to rely on
offshore factories maintaining our strict high-standards whilst being situated halfway across
the world.
500R8 User Manual -Page 3- ©2019 Cranborne Audio Ltd
500R8 User Manual
Getting Started 8
Controls, Switches, and Connectors 8
Package Contents 10
Rack-Ear Orientations 11
Default Shipping Configuration 11
Recessed Configuration 12
Handle Configuration 12
Power Supply 13
Connecting Power 13
Disconnecting Power 13
Powering Procedures 14
Powering On 14
Powering Off 14
Installing and Removing 500 Series Modules 14
Installing Modules 14
Removing Modules 14
Hardware Setup 15
Software Setup 16
Windows Configuration 16
Sample Rate Selection In Windows 16
MacOS X Configuration 17
Sample Rate Selection in MacOS 17
Configuring 500R8 in Your DAW 17
Feature Overview 18
500 Series Rack 18
Module Inputs 18
Inserts 18
Module Direct Outputs 19
Slot Bypass Switch 19
Source Switch 20
Chain Switch 21
500 Series Signal Flow 21
Summing Mixer 22
Mix Level & Pan 22
Summing Mixer Outputs 22
Summing Mixer Expansion Via C.A.S.T. LINK 23
Artist Monitoring Section 24
Aux/Monitor Blend 24
DAW Select Switch 24
DAW 2 Input Jacks 25
Aux/Monitor Level 25
500R8 User Manual -Page 4- ©2019 Cranborne Audio Ltd
Aux Outputs 25
Monitor Controller 26
Meter 26
SPKR A/B Key 26
Mono Key 27
Mute Key 27
Dim Key 27
Monitor Headphones Output 27
Talkback 27
Talkback Input 28
Talkback Level 28
Talk Key 28
USB Audio Interface 28
USB Inputs 29
USB Outputs 29
USB Channels At Higher Sample Rates 30
High Sample Rates On macOS 30
ADAT 30
ADAT Channels At Higher Sample Rates* 31
S/PDIF 31
Low-Jitter Internal Clock 31
Word Clock Input 32
Word Clock Output 32
Clock Source 32
Configuring Clock Source on Windows 33
Configuring Clock Source on macOS 33
Clock Settings DIP switch 33
MIDI I/O 34
C.A.S.T. 34
C.A.S.T. IN A,B,C & D (RRTT) 35
C.A.S.T. Requirements 36
Cranborne Audio USB Control Panel 36
Windows 37
macOS 38
Application Guides 38
Using 500R8 without 500 series modules 39
Sending Audio From Your DAW, into the 500 Series modules on 500R8 40
Using 500R8 With Hardware Inserts In your DAW 40
Hardware Inserts In Pro Tools 41
Configuring Studio Monitors With 500R8 42
Creating Monitor Mixes For Musicians 43
Creating A Mix 44
Using the DAW 2 Input 45
Adding Reverb Into The Monitor Mix 45
500R8 User Manual -Page 5- ©2019 Cranborne Audio Ltd
Expanding Your Recording System Using ADAT 45
Using 500R8 and 500ADAT Together 46
C.A.S.T. LINK 47
Using 500R8 In Combination With Your Own AD/DA Converters 49
Understanding C.A.S.T. 49
N22 50
N22H 50
Using N22 and N22H with 500R8 50
Custom Configuration For Logic Pro X Users 51
USB Channel Labelling And Assignments 52
44.1 - 48kHz 53
88.2 - 96kHz 54
176.4 - 192kHz 54
Technical Specifications 55
Digital Performance 55
Analogue Performance 56
System Performance 57
Power 57
Environmental 58
Dims/Weights 58
Troubleshooting 59
Important Safety Instructions 59
General Safety 59
Installation notes 60
Power Safety 60
CE Certification 61
FCC Certification 61
RoHS Notice 61
Instructions for disposal of WEEE by end users in the European Union 62
Electromagnetic Compatibility 62
500R8 User Manual -Page 6- ©2019 Cranborne Audio Ltd
Getting Started
Controls, Switches, and Connectors
[1] Source Switch: Toggles the input source of
each 500 series slot between C.A.S.T., Analogue,
and USB sources.
[8] Talkback Level Control: Adjusts the global
level of the Talkback Bus into all destinations.
[2] Mix Level & Pan Controls: Adjusts the level
and pan position of each 500 series slot into the
built-in Summing Mixer.
[9] Talk Key: Engages the Talkback facility.
Operates in a momentary, push-to-talk
behaviour.
[3] Chain Switch: Sends the output of the
preceding module into the input of the next. (1
into 2, 2 into 3, 3 into 4 etc).
[10] Aux & Monitor Blend Controls: Blends the
Summing Mixer and DAW playback together into
the Aux and Monitor Busses independently.
[4] Slot Bypass Switch: Bypasses the 500 series
slot to enable recording without a module
installed. All other features function normally
when slot bypass is engaged.
[11] Aux Level Control: Adjusts the main level of
the Aux bus to the Aux Headphones and Aux
Output 1/4” jack outputs on the rear panel.
[5] Power Switch: Safely powers on and off
500R8 as well as any inserted 500 series module.
Tap to power on, press and hold to power off.
[12] DAW Select Switches: Assigns an alternate
pair of DAW playback returns into the Blend
controls for Aux and Monitor busses. DAW 2 is
accessed using USB outputs 29/30* or DAW 2 ¼”
Jack inputs on the rear panel.
[6] Level Meter: Displays the signal level of the
Monitor Bus. Meter is positioned pre Monitor
Level control in the signal path. The meter scale is
in dBFS where 0dBFS = +24dBu.
[13] Monitor Level Control: Adjusts the main level
of the Monitor Bus to both Monitor Headphones
and Speaker Outputs.
[7] Monitor Controller Keys: Controls various
options for the connected studio monitors
including Speaker A/B, Mono, Mute, and Dim
functions.
[14] Aux & Monitor Headphones Outputs: Used
for connecting Independent headphones to the
Aux and Monitor busses.
Note:
*DAW 2 corresponds to USB outputs 27/28 on v0.9 software.
500R8 User Manual -Page 7- ©2019 Cranborne Audio Ltd
[1] Module Input: Connects balanced XLR
analogue inputs into each 500 series slot. Input
sensitivity varies depending on the type of module
inserted.
[10] USB 2.0: Connects to a PC, macOS, or Linux
device to enable 28-in/30-out USB recording and
playback. This connection is compatible with USB
3.0 ports.
[2] Insert: Connects external equipment in-line
after the 500 series module but before the A/D of
each 500 series slot. Utilises a standard Y-split or
insert cable. (Tip=send, Ring=return).
[11] Grounding Post: Enables direct binding to
chassis ground to help eliminate ground loops in
specific setups.
[3] Module Direct Outputs: Sends balanced,
line-level outputs of each 500 series slot for
connection to external converters and equipment.
Module Direct Outputs are positioned post-insert
point, pre Mix Level.
[12] DAW 2 Input: Connects analogue playback
sources from external audio interfaces directly
into 500R8’s monitoring paths. Inputs are
summed with the DAW 2 USB outputs.
[4] C.A.S.T. A, B, C, & D Inputs: Enables I/O
relocation and expansion via Cranborne Audio
C.A.S.T. enabled breakout boxes.
[13] Talkback Input: Connects external
microphones directly into 500R8’s Talkback
facility. Phantom power is always ON. Dynamic or
Condenser mics can be used.
[5] ADAT I/O: Interfaces 16-in/16-out ADAT optical
lightpipe channels directly into 500R8’s USB
interface.
[14] Power: Provides 500R8 with power via the
provided external 24v 5A DC power supply. No
other power supply should be used.
[6] S/PDIF I/O: Interfaces 2-in/2-out S/PDIF and
AES3 directly into 500R8’s USB interface.
[15] C.A.S.T. link: Enables linking of Summing
Mixers between 500R8 and 500ADAT. C.A.S.T. link
transmits the Aux Mix (inc Talkback) into the
connected 500ADAT for monitoring.
[7] Word Clock I/O: Enables sending and/or
receiving word clock information to/from external
digital devices.
[16] Aux Output: Connects balanced line outputs
of 500R8’s Aux Bus to external monitoring
devices or similar via 1/4” jacks.
[8] Clock Settings DIP switch: Adjusts 500R8’s
Clock Settings including Clock Source and Sample
Rate when a device is not connected via USB.
[17] Mix Output: Connects line outputs of 500R8’s
built-in Summing Mixer directly to external
converters or similar via 1/4” jacks.
[9] MIDI I/O: Converts MIDI information to USB for
sending/receiving note and program information.
[18] Speaker A/B Outputs: Connects two discrete
sets of speakers to 500R8’s Monitor Controller for
main and reference monitoring via XLR and ¼”
Jack.
Note: *S/PDIF is not operational on v0.9 firmware.
500R8 User Manual -Page 8- ©2019 Cranborne Audio Ltd
Package Contents
So now your 500R8 is out of it’s packaging, you’re probably itching to get it powered on and
making music! But before you get started, please read the sections below that will help guide
you through the process of getting 500R8 setup, plugged in, and ready-to-record as quickly as
possible!
The following items can be found in the packaging alongside 500R8:
- External power adapter
- IEC cable
- 16 module fixing screws (crosshead, 4-40 thread size)
- Allen key (2.5mm)
- Quickstart Guide
Note:
To reduce environmental waste, 500R8 does not ship with a USB cable to connect it
to a host device for recording/playback. To use 500R8 as a USB audio interface, you
will need to source a USB Type A to Type B cable - which is a common cable for
peripheral USB devices.
500R8 User Manual -Page 9- ©2019 Cranborne Audio Ltd
Rack-Ear Orientations
There’s more to 500R8’s rack ears than meets the eye. The default shipping configuration
features the rack ears mounted flush to the front panel of 500R8 - the most common method
for rack-mounting.
500R8 can also be set backwards into its rack ears to allow the front panel controls to sit
behind the front of the rack for protection during travelling and location recording.
Finally, both of 500R8’s rack ears can be removed, placed back-to-back, and attached to 500R8
as a convenient carry-handle for travelling.
Depending on your desired use case, you may need to reorientate the rack ears and position
the rubber feet to best suit your application by using the supplied 2.5mm allen key.
Default Shipping Configuration
Standard rack-ear configuration used for rack-mounting 500R8 into standard 19” rack. If you
would like to secure 500R8 into a 19” rack, the rubber feet should be removed from the unit
using the allen key provided.
Note:
Whilst 500R8 features plenty of ventilation to ensure that it remains cool during
operation, some 500 series modules (and valve-based modules in particular) can
run extremely hot and will cause 500R8 to heat up quickly. When rack mounting
500R8, please leave a 1u space above and below the unit to ensure that the
ventilation is clear and fully-effective.
500R8 User Manual -Page 10- ©2019 Cranborne Audio Ltd
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