
HOW TO
CORNER
YOURSELF
WITH GREAT
SOUND
User manual Cornered C8S subwoofer

C8S subwoofer
Cornered speakers are designed to blend discretely into
modern homes and commercial installations. But above
all they are truly professional speakers and capable of
delivering serious sound pressure and strong dynamics.
Please take some time to study this manual to get the
most out of your Cornered speaker system.
Description
The C8S is a passive on-wall subwoofer that is also designed to stand on the floor. It has a built-in crossover and
a passive radiator that extends sub bass performance.
With an 8” long-throw woofer with dual voice coil, the
C8S is an ideal choice for larger rooms and will support all
Cornered models with extended bass output.

Installing the speaker
1. Connecting the speaker cable
There are two sets of speaker terminals. The left terminal is for left & right input from
the amplifier.
1. Connect red (+) from each amplifier output to the red terminal on the subwoofer
and black (-) from each amplifier output to the black input terminal on the C8S.
Left speaker
+ - + -
L
R
+ - + -
Right speaker
L
R
OutputInput
2. Positioning the cabinet
C8S is designed to be mounted on the wall with the woofers facing inwards. It is also
possible to have it standing with the woofers facing down towards the floor.
For installation on wall:
Front
1. Mark screw holes for wall bracket using the provided template.
2. Mount the included wall bracket to the wall with the included screws.
3. After the speaker cables are mounted to the terminals, hang the C8S in
the bracket.
3. Recommended speaker cables
Left
+ - + -
The right terminal is output for the top-boxes. The output signal is cut below 240 Hz
with a 12-dB filter, offering excellent protection of the top boxes. Up to two speakers
per output terminal can be connected.
2. Connect L red (+) on the subwoofer output terminal to the red (+) input on your left
speaker and L black (-) from the subwoofer output terminal to the black (-) terminal
on your left speaker. Likewise, connect R red (+) on the subwoofer output terminal
to the red (+) input on your right speaker and R black (-) from the subwoofer output
terminal to the black (-) terminal on your right speaker
Note, when connecting, polarity shall NOT be reversed, as the reflected sound from
the wall will be in phase with the top-boxes.
Right
Amplifier
Speaker cables present amplifiers with different loads. Cables with high capacitance,
high inductance and high impedance have a strong negative influence on sound qual-
ity as well as amplifier reliability, so in order to get the most out of the speaker system,
avoid using thin speaker cables.
As a rule of thumb, 2 mm2 (14 AWG) cable can be used for lengths up to 20 meters.
4 mm2 (11 AWG) cable should be used for lengths over 20 meters. For lengths over
50 meters, most amplifiers will become unstable and sound quality is reduced signifi-
cantly.
4. Warranty
For warranty information, please refer to your local CORNERED distributor or dealer.
5. Service
Spare parts for your CORNERED speakers are available through your local COR-
NERED distributor. In case you are not able to source spare parts locally, you can

Specifications
Declaration of
conformity
Power handling, IEC268:
Power handling, peak:
Sensitivity, 2,83V/1m:
Maximum SPL, long term:
Maximum SPL, peak:
Freq. response, +/- 3 dB:
Nominal impedance:
Recommended amplifier:
Input connectors:
Finish:
Weight:
Measurements (HxWxD):
2x100 watt
2x400 watt
88 dB
109 dB
115 dB
30-240 Hz
8 ohm dual voice coil
50-150 watt into 8 ohm
Screw terminal connectors
Black or white
10.9 kg
540x375x190 mm
Manufacturer:
CORNERED Audio ApS
Rosenkæret 13
DK - 2860 Søborg
Tel +45 4366 1088
cornered.dk
We, CORNERED Audio ApS,
declare under our responsibility that the following product:
Cornered C8S Type: Speaker
…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
Date: 01.09.2018

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 2017 CORNERED Audio ApS, Denmark.