
Martin Audio – CS265P
CONTENTS (ENGLISH) Page No
1 INTRODUCTION 2
2 UNPACKING 2
3 FEATURES 2
4 MAINS CONNECTION 3
5 INSTALLATION 3
6 SIGNAL CONNECTIONS 4
7 WARRANTY 4
8 TECHNICAL SPECIFICATIONS 5
MARTIN AUDIO
LONDON

1 INTRODUCTION
Thank you for purchasing a Martin Audio CS265P, a powered sub-bass
system designed to be used with the C115 and C516 Contractor Series
loudspeakers. It incorporates two powerful 6.5" (165mm) drive units in an
ultra-compact enclosure powered by an internal 150 watt amplifier.
2 UNPACKING
Each Martin Audio loudspeaker is built to the highest standard and
thoroughly inspected before it leaves the factory. After unpacking the
system, examine it carefully for any signs of transit damage and inform
your dealer if any such damage is found. It is suggested that you retain
the original packaging so that the system can be repacked at a future date
if necessary.
Please note that Martin Audio and its distributors cannot accept any
responsibility for damage to any returned product through the use of
non-approved packaging.
3 FEATURES
The CS265P has the following features:
150 watt bi-polar complementary output stage.
Differential balanced, summed, dual XLR inputs.
In-built limiters, to ensure the power module cannot clip.
Auto signal ramp-up on switch on. This ensures that the sub-bass
output is brought up to its pre-set level over a two second period.
Full protection against thermal overload.
Martin Audio – CS265P
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This equipment conforms to the requirements of the
EMC Directive 89/336/EEC, amended by 92/31/EEC
and 93/68/EEC and the requirements of the Low
Voltage Directive 73/23/EEC, amended by 93/68/EEC.
Standards Applied EMC Emission EN55103-1:1996
Immunity EN55103-2:1996
Electrical Safety EN60065:1998

4 MAINS CONNECTION
The CS265P is supplied in either 220-240 volt or 100-120 volt versions.
Before connecting to the mains, ensure that the version you have is the
correct voltage.
The CS265P is fitted with an IEC 320 mains receptacle with integral fuse
holder. The 2 metre mains lead supplied is fitted with a 3-pin mains plug to
UK BS1363.
Should this mains plug be removed and another plug substituted, the cable
must be rewired as follows:
GREEN/YELLOW - EARTH
BROWN - LIVE
BLUE - NEUTRAL
W
ARNING:
The CS265P must always be operated with the mains safety earth
connected
Fuse rating for 220-240V version - 2 amp type T(L)
Fuse rating for 100-120V version - 4 amp type T(L)
Voltage tolerance on each version -5% +10%
5 INSTALLATION
The CS265P may be mounted in any orientation provided that there is
adequate airflow around the power module to assist cooling. It should not
be mounted in an environment where the ambient temperature can exceed
40 degrees C. This will result in thermal shutdown of the power amplifier
module. Operation will be automatically resumed once the temperature has
returned to a safe level.
Martin Audio – CS265P
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This equipment must be earthed.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DO NOT EXPOSE TO RAIN
OR MOISTURE
It should not be necessary to remove any protective earth or signal cable
shield connections.

6 SIGNAL CONNECTIONS
The CS265P is provided with two differential balanced inputs wired as
follows:
Pin 1 Selectable Ground Lift/Ground/Open Circuit (See note below)
Pin 2 Hot (+)
Pin 3 Cold (-)
Impor
tant Note: The CS265P is supplied from the factory with pin 1 in the
Ground Lift position, with a 47R resistor between Signal 0V and Ground.
Links on the printed circuit board can be changed to link Signal 0V direct to
ground or removed completely (open circuit).
W
ARNING:The unit must be disconnected from the mains supply before
attempting these changes.
The two connectors are fed to a summing circuit which combines the left and
right signals to a mono signal. For full-power output, both balanced inputs
must be fed with a signal of 0dB (0.775V rms) with the input sensitivity
control set fully clockwise. If only one mono signal is available, it can either
be Y-split and fed to both inputs or, if only one input connector is used, the
level of the input should be increased by +6dB (1.546V rms) to achieve the
same output.
7 WARRANTY
Martin Audio CS265P is warranted against manufacturing defects in materials
or craftsmanship over a period of 1 year from the date of original purchase.
During the warranty period Martin Audio will, at it's discretion, either repair or
replace products which prove to be defective provided that the product is
returned in its original packaging, shipping prepaid, to an authorised Martin
Audio service agent or distributor.
Martin Audio Ltd. cannot be held responsible for defects caused by
unauthorised modifications, improper use, negligence, exposure to inclement
weather conditions, act of God or accident, or any use of this product that is
not in accordance with the instructions provided by Martin Audio.
Martin Audio is not liable for consequential damages.
This warranty is exclusive and no other warranty is expressed or implied.
This warranty does not affect your statutory rights.
Martin Audio – CS265P
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8 TECHNICAL SPECIFICATIONS
CS265P
TYPE Powered ultra-compact sub-bass system
FREQUENCY RESPONSE 60Hz-120Hz ±3dB
LOW FREQUENCY LIMIT -10dB @ 55Hz
DRIVERS 2 x 6.5" (165mm) long excursion drivers
with 1.5" (38mm) voice coils
POWER MODULE 150 watts RMS into 4 ohms
MAXIMUM SPL 113dB continuous, 119dB peak
ACTIVE FILTERS 30Hz high-pass, 150Hz low-pass
ENCLOSURE 44 litre (1.6 cu foot) particle board
construction
CONNECTORS IEC mains receptacle
2 x XLR inputs
DIMENSIONS (W) 215mm x (H) 456mm x (D) 605mm
(W) 8.5ins x (H) 18.0ins x (D) 23.8ins
WEIGHT 19kg (41.8lbs)
SHIPPING DIMENSIONS (W) 280mm x (H) 510mm x (D) 680mm
(W) 11ins x (H) 20.1ins x (D) 26.8ins
SHIPPING WEIGHT 19.5kg (43lbs)
Due to our policy of continuous improvement all specifications are subject
to change without notice.
Martin Audio – CS265P
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Contractor Series CS265P
Century Point, Halifax Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3SL, England.
Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669
Web: www.martin-audio.com E-mail: info@martin-audio.com
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MARTIN AUDIO
LONDON