Cornered Audio CA280DSP User manual

HOW TO
CORNER
YOURSELF
WITH GREAT
SOUND
User Manual
Cornered CA280DSP
Network amplifier

Cornered Audio
Introduction
Cornered Audio provide aesthetic sound to custom- and com-
mercial installations where high-end performance and discreet,
elegant design is needed. To get the best out of your Cornered
amplifier and loudspeaker system, please study this manual care-
fully before installing.
Safety
• Read and keep these instructions
• Do not use this apparatus near water
• Clean only with a dry cloth
• Do not block any ventilation openings
• Do not install near any heat sources such as radiators or other
heat producing products
• Use with provided power cord or similar
• Refer all service to qualified personnel

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Spare parts for your CORNERED products are available through your local COR-
NERED distributor. In case you are not able to source spare parts locally, you can
contact us directly at [e-mail]
2.1 Remote control software
Go to: www.cornered.dk/amplifiers
to download control software for your CA280DSP.
2.2 Rack mounting
CA280DSP can be mounted into a rack by attaching two brackets, one short and one
long (included) to the mounting holes in the side of the amplifier. Use a 4 mm diam-
eter machine screw, ensuring that the length of the screw is suitable for the thickness
of the rack shelf.
A dedicated rack mount designed to hold two CA280DSP’s side by side is available
as accessory.
CA280DSP is stable with voltage from 85 to 265V, but perform to specifications from
110 to 240 Volt. Always use the provided power plug. Use balanced source cables to
avoid hum and interference when cable runs over 5 meters are used.
2.3 Operating voltage
2.4 Service
1.0 Warnings
• To reduce risk of electric shock, do not expose this apparatus to
rain or moisture
• Do not expose this system/apparatus to dripping or splashing
are placed on the apparatus.
• This apparatus must be connected to a mains socket outlet
with earthing connection.
• To prevent electric shock do not remove top or bottom covers.
• No serviceable parts inside.
• Check the voltage in your area and use the correct type of mains
1.1 Radio interference
This product has been tested and complies with the limits for the European Electro
Magnetic Compatibility (EMC) directive. It also complies with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference from electrical equipment.
This product uses radio frequency energy and, if not used or installed in accordance
with these operating instructions, may cause interference to other equipment, such
as radio receivers.
However, there is no guarantee that interference will not occur in a particular instal-
lation. If this equipment causes harmful interference to radio or television reception,
the user may be able to correct the interference by one or more of the following
measures:
• Check if the affected unit complies with the EMC limits for immunity, (CE-labelled).
If not, address the problem with the manufacturer or supplier.
• Consult the dealer or an experienced radio/TV technician for help.
• Reorient or relocate the antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet
2.0 Set-up

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Front - from left to right:
A. The large Standby/On LED to the left will show a red light when the unit is in
stand-by mode.
B. The red Power LED shows that the unit is connected to power.
a. The blue Limit indicator will light up when the limiter is active -
(determined by the limit setting)
b. The red clip LED will light up when amplifier is clipping
C. Pre-set 1, 2 and 3 are user made pre-sets
D. Antenna creating access point for set-up via Wi-Fi
(should always stand straight when in use)
E. Screw holes for rack mounting
Important!
Observe polarity to avoid low frequency cancellation, especially if mixing to mono
in the matrix.
Note: In Bridge mode - connect speaker cables to 1+ 2+
Note: See below for wiring of the GPIO
Rear - from left to right:
A. AC line input – Connect the included IEC
power cable.
B. General purpose in- and output. Connect external control using the four-pole
Phoenix connector.
C. USB connection for PC set-up and control
D. Speaker outputs. Cables up to 4 sq. mm.
is supported.
E. Ethernet connection for external control and set-up.
F. Balanced inputs with link using 3-pole
Phoenix connectors.
3.0 Front and rear panel

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4.0 Connections 4.0 Connections
4.1.1 Wiring in 2-channel mode 4.2 Wiring in bridge mode
* Use 1+ 1- for 70/100V direct drive. Select >16 ohm. * In bridge mode, use 1+ 2+ for 70/100V and 4/8ohm mode

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5.0 Navigation bar
1. Load and Save settings to PC. Store and Recall up to 3 pre-sets locally on the
amplifier (accessed via front panel)
2. Link check boxes. When checked, changes made to one input or one output
are applied to both inputs/outputs
3. Level. Click to access mode selection (4, 8, 16 ohm or 70V/1OOV), input source,
channel routing and gain levels.
4. L/R. Click to access controls for both input channels including gain, noise gate,
low pass, high pass and EQ filters
5. Click to access controls for output channels including EQ Filters, gain, compression,
limiter, and dynamic loudness
6. SM. Click to access controls for Sound Masking. Enable and disable sound masking
and adjust masking EQ filters
7. Settings. Update firmware, rename device and adjust network settings
8. Power button. Toggle in and out of stand-by mode 1. Load and Save settings to PC.
Store and Recall up to 3 pre-sets locally on the amplifier (accessed via front panel)
6.0 lnstall control software and
connect to amplifier
Control and setup of the amplifier can be made via direct Wi-Fi, Ethernet cable
or USB type B.
1. Download and install the control software on supported PC device from
WWW.CORNERED.DK
2. Install driver and open software
3. To connect to the amplifier directly via Wi-Fi, search available Wi-Fi networks
and connect to “WiFi Net”
4. Wired LAN connection: select TCP/IP option
(you may need to manually add device).
5. Direct USB connection: select USB option (you may need to manually add device)
6. Select device on drop down list and double click to open amplifier.
Wait and click yes to connect

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7.0 Basic amplifier functions 8.0 Advanced amplifier functions
Click “Level” in the main navigation bar to access basic amplifier functions. By clicking on 1 or 2 in the main menu, you will access more settings for
channel 1 or 2.
1. Menu: Quickly navigate to key functions
2. Input: Input can be switched from either analogue input or the internal
noise generator.
3. Noise generator: Select white or pink noise and control gain
4. Routing: The matrix allows either input to be routed to either output.
5. Auto-off/Auto-on: When Sleep mode is enabled, the amplifier will be turned
off after 1 hour of inactivity. It will automatically turn on immediately when
input is detected.
Note: If the unit is manually powered off by the Power button on the front panel,
it will not wake up by input signal presence, even if Sleep Mode is enabled.
6. External control: Allows volume/mute via the GPIO.
7. Bridge mode: When selecting “Bridge Mode”, the amplifier will deliver 280 watt
on the 1+ 2+ output terminals.
Note: Bridge 1 will send the signal from channel 1 to the bridge output.
Bridge 2 will send the signal from channel 2 to the bridge output and bridge
1+2 will send the summed signal to the bridge output.
8. Load: Select impedance for the speakers to allow the amplifier to optimize
the output stage. Select >16 ohm for 100V mode.
9. Gain: Adjust input and output gain.
1. High pass/Low pass filters - choose between Bessel, Butterworth and LR, 6, 12, 18
and 24 dB filters.
2. RMS Compressor with custom settings
3. Peak Limiter – settings for all Cornered speakers are in the presets.
4. Dynamic Loudness – to boost bass and treble at low volume in retail outlets
and like.
5. Delay in milli seconds or meters.
6. Reverse polarity
7. Mute channel

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9.0 Bridge mode 11.0 EQ section
10.0 Loading and saving settings
When selecting “Bridge Mode”, the “Speaker Drive” menu will appear.
• If you wish to run in 100V mode, select “>16ohm” in the “load” drop down menu
and the amplifier will deliver 280 watt in 100V mode.
• If you wish to run in 8 ohm mode, select 8 ohm in the “load” drop down menu
and the amplifier will deliver 280 watt in 8 ohm mode
To enter the EQ section, press 30 PEQ in the quick menu bar. Then click “edit” in
the EQ filters section marked below.
Click on “Bell” to change from Bell to High/Low Shelving, High/Low pass Q, Notch
filter or All-pass filters. Frequency and Q can be changed simply by clicking on the
value and entering the desired value.
All filters can be by-passed individually by clicking By-pass “Byp”. EQ settings can be
made separately for each output channel by clicking on either 1 or 2 as shown below,
which is practical if you run a sub on one channel and top-boxes on the other.
9.1 Loading from – and saving to PC
Click “Load” and “Save” in the menu bar in the upper left-hand side of the menu.
9.2 Loading from - and saving to the three pre-sets on amplifier front panel
Click “Store” and “Recall”
Note: Loading from - and saving to the pre-sets on the front panel, is only possible
when the remote connection is disconnected!

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11.1 Auto EQ
With the PC’s ASIO card and an external microphone, CA280DSP is capable of cal-
culating and setting room EQ automatically. To enter the Auto EQ Wizard, do the
following:
A: Click on the Auto EQ symbol marked below. The Auto EQ Wizzard will appear.
Read on-screen instructions and click “next”.
C: Set Frequency range and PEQ filter gain (+ - 3 dB is recommended). Click “Start”.
The Auto EQ will sweep the room and calculate EQ settings with gain and Q. It will
show the recommended EQ setting. Now check the settings by clicking on “verify”.
The RTA will then show an improved room response. If accepted, click “Apply”
B: Select ASIO card and Microphone from the drop down menu. Click “test”. D: To copy the EQ settings from output 1 to output 2, close the PEQ.
Click “Copy Out” in the top menu.
Select “Out1” to “Out2” and click “Confirm”.

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12: SM - Sound Masking
The amplifier includes a fully customizable Sound Masking generator. To access Sound
Masking features, click the SM button on the Navigation Bar.
A default sound masking setting will show. It can be customized as desired using 16
band Masking filters. The sound masking signal can be used on its own or blended
into background audio or paging. When installing a sound masking system into a new
space, gradually increase level over a week or more until you have reached the desired
setting, where the sound masking signal blends into the background noise while sup-
pressing normal conversation from a distance.
Declaration of
conformity
Manufacturer:
CORNERED Audio ApS
Rosenkæret 13
2860 Søborg
Denmark
Tel [phone]
www.cornered.dk
We, CORNERED Audio ApS, declare under our responsibility that the following
product(s):
Cornered CA280DSP
Type: Amplifier
…is in conformity with COUNCIL DIRECTIVE of 3 May 1989 on the approximation of
the laws of the Member States relating to electromagnetic compatibility (89/336/
EEC) and has been manufactured in conformity with the following national standards
that implement a harmonized standard:
EN 55013
Limits and methods of measurement of radio disturbance characteristics of
broadcast receivers and associated equipment.
Limits and methods of measurement of radio disturbance characteristics of
broadcast receivers and associated equipment.
Hans V. Madsen / Founder
01.06.2019

Contents of the manual are subject to change without notice. CORNERED Audio does not accept any
liability for loss or damage caused or alleged to be caused directly or indirectly by these instructions.
CORNERED Audio makes no guarantee of any kind with regard to these instructions.
Copyright 2019 CORNERED Audio ApS, Denmark.