Summa The world at your fingertips

Calrec Audio Ltd
Nutclough Mill
Hebden Bridge
West Yorkshire
England UK
Tel +44 (0)1422 842159
Fax +44 (0)1422 845244
The world at your fingertips
Inspired by the simplicity and intuitiveness
of tablet technology, Summa is an audio
console designed for a broad range of
operator levels.
Summa is designed for
live broadcast applications
with a focus on instinctive
Its design keeps the user interface simple and straightforward. Calrec has
focused on ensuring that Summa’s highly intuitive GUI would be suitable
for a broad range of operator levels. Users control the console via a
17-inch multitouch screen inspired by familiar tablet technology, with a
straightforward interface that uses established finger gestures to navigate
the system. The crisp, high-resolution display provides elegant controls
and clear presentation of information.
Designed for live broadcast applications and with a focus on intuitive
operation, Summa simplifies even complex workflow tasks, such as
creating mix-minus feeds, with common procedures that are just one
tap away.
Summa’s other large displays are fully configurable to display bus, output,
and loudness meters, and feature dedicated metering, routing, and
processing information per fader.
Summa installed at Russia Today, London
100mm faders with PFL overpress
Six surface layers
Built-in Talkback Microphone
Stereo Headphone Output
A pool of 180 or 128 Channel processing paths
4 x Main Outputs (mono, stereo or 5.1)
8 x Audio Sub-Groups (mono, stereo or 5.1)
32 x Track Outputs (mono or stereo)
16 x Auxiliary Outputs (mono or stereo)
1 x Direct Output per Channel* (Pre EQ, Pre Fader or Post Fader)
1 x Mix Minus Output per Channel* (can be fed from Auto Minus,
Auxes, Tracks or Off Air Conference Bus)
1 x Auto Minus Bus
1 x Off Air Conference Bus
1 x Insert on every Channel, Group, Main and Console
Monitor Output
152 x External Monitor and Meter Inputs
4 x AutoMixers, each controlling an unlimited number of paths
Unlimited VCA groups
6-band parametric EQ on every Channel, Group, Main
Dynamics processing on every Channel, Main, Group,
Aux and Track (2 x Compressor/Limiter, Expander, Gate,
Side Chain EQ/Filters)
2.73s of delay within every Channel, Group, Main, Aux and Track
An additional pool of 128 blocks of assignable Input Delay
(2.73s each)
An additional pool of 128 blocks of assignable Output Delay
(2.73s each)
5.1 Console Monitor Output (with dedicated small
LS and PFL/RTB outputs)
3 x 5.1 Studio Monitor Outputs
Advanced AutoFader (AFV) functionality on all faders
The physical control surface is available in fixed 12+8, 24+8 and 36+8
fader configurations with a new streamlined layout. Each channel strip
has only the most essential mechanical controls, featuring a fader,
two flexible control cells, and a dedicated gain pot.
Summa uses Calrec’s award-winning Bluefin2 technology at its core,
and the same integral Hydra2 router technology as the Apollo and
Artemis consoles. Bluefin2 and Hydra2 technologies are in use
24 hours a day.
Bluefin2 provides Summa with a pool of up to 180 channel processing
paths, which can be assigned as mono, stereo, or 5.1 channels. As with
all Calrec consoles, there is no resource-sharing across the DSP.
All facilities are available on all channels at all times. Summa has eight
groups, four mains (all of which can be mono, stereo, or 5.1), 16 auxes,
and 32 tracks.
* from a pool of 188 mono resources shared between direct outputs and
mix minus outputs.
The broadcast-focused feature set also includes complete system
redundancy, dedicated delay on all paths with additional assignable
input and output delay, PFL overpress on all faders, and three 5.1 studio
monitor outputs.
Summa’s refined mechanical design and a lean construction that keeps
components and materials to a minimum. Disciplined power distribution
means the console is one of the most energy efficient consoles available.
− Integral 4096x4096 router
− 8 redundant router connections for networking consoles
and connecting I/O boxes
− All I/O provided over Hydra2 network via a wide range
of I/O formats
− Cat5e or fiber connectivity
− Highly resilient. PSU, DSP, Control Processor and Router Modules
are hot-swappable and have automatic redundancy
− Independent DSP operation ensures audio continuity in the event
of a surface reset
− Low power consumption and heat generation
More information at