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CONTENTS (ENGLISH)
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2
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8
INTRODUCTION
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3
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4
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6
UNPACKING
AMPLIFICATION
SAFETY FIRST
CABLE LENGTHS
SYSTEM CONFIGURATIONS
WARRANTY
TECHNICAL SPECIFICATIONS
MARTIN AUDIO
L O N D O N
The Martin Experience
All material © 2007. Martin Audio Ltd. Subject to change without notice.
Martin Audio – CS265
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3
AMPLIFICATION
The CS265 is designed to be used with professional power amplifiers
capable of producing 100-200W per channel into 4 ohms:
Care should be taken to avoid amplifier clipping. It is important to
understand that a low power amplifier driven into clipping is more likely to
damage a loudspeaker than a higher power amplifier used within its ratings.
This is because music signals have a high peak-to-average "crest" factor.
When an amplifier is severely overdriven, its output waveform is clipped (its
peaks are squared off) – reducing the crest factor. In extreme cases, the
waveform can approach that of a square wave. An amplifier is normally
capable of producing far more power under these conditions than its
undistorted rated power output.
The use of very high power amplifiers with outputs greater than those
recommended is discouraged.
Care should be taken to avoid switch-on surges, which can result in
momentary power peaks in excess of specified ratings. When powering up
a sound system it is important to switch on the amplifiers after the mixer
and control electronics have stabilised. When powering down the system,
reverse the sequence and switch off the amplifiers first.
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SAFETY FIRST
It is important that loudspeaker systems are used in a safe manner.
Please take some time to review the following points concerning safe use
of Contractor Series loudspeakers.
Professional loudspeakers are capable of producing extremely high sound
levels and should be used with care. Hearing loss is cumulative and can
result from levels above 90dB if people are exposed for a long period.
Never stand close to loudspeakers driven at high level.
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CABLE LENGTHS
When connecting loudspeaker systems to an amplifier, it is recommended
that the return resistance of the cable used is less than one tenth of the
nominal impedance of the system or systems in parallel. The table below
gives an indication of the maximum permissible cable runs for various
conductor cross-sectional areas.
Conductor CSA
Maximum Cable Run
4 ohms
11m
8 ohms
22m
16 ohms
1.0mm2
1.5mm2
2.0mm2
2.5mm2
4.0mm2
6.0mm2
44m
68m
17m
22m
29m
44m
66m
34m
44m
88m
58m
116m
176m
264m
88m
132m
3
All material © 2007. Martin Audio Ltd. Subject to change without notice.
Martin Audio – CS265
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6
SYSTEM CONFIGURATIONS
The following configurations are available:
1 x CS265 with 2 x C115
1 x CS265 with 4 x C115
1 x CS265 with 4 x C516
WIRING DIAGRAM FOR 1xCS265 AND 2xC115
C115 ONLY
CS265
CH1
CH1
CH2
C115 ONLY
CH2
CH1
CH2
AMPLIFIER
WIRING DIAGRAM FOR 1xCS265 AND 4xC115 OR C516
C115 OR C516
C115 OR C516
CS265
CH1
CH1
CH1
CH2
C115 OR C516
CH2
C115 OR C516
CH2
CH1
CH2
AMPLIFIER
4
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When the systems are connected in this way, it provides the best match of
sensitivity and power handling between the CS265 and C115 or C516
satellites, whilst maintaining a nominal overall impedance above 4 ohms.
The configuration 1 x CS265 with 2 x C516 is not advisable unless the
amplifier is capable of 2 ohm operation.
When phase checking a system, there should be a positive output from the
rectangular port of the CS265 and a negative output from the triangular
ports. The output of the C115 or C516 loudspeakers should be positive in
all circumstances.
7
WARRANTY
Martin Audio CS265 is warranted against manufacturing defects in materials
or craftsmanship over a period of 5 years 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.
5
All material © 2007. Martin Audio Ltd. Subject to change without notice.
Martin Audio – CS265
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8
TECHNICAL SPECIFICATIONS
CS265
TYPE
Low profile ultra-compact sub bass system
60Hz-120Hz ±3dB
-10dB @ 55Hz
2 x 6.5" (165mm) long excursion drivers
with 1.5" (38mm) voice coils
200W AES, 800W peak (2 x 100W AES,
400W peak per driver)
FREQUENCY RESPONSE
LOW FREQUENCY LIMIT
DRIVERS
RATED POWER
RECOMMENDED AMPLIFIER
SENSITIVITY
100-200W into 4 ohms
93dB 1 Watt/1 metre
MAXIMUM SPL
IMPEDANCE
CROSSOVER
112dB continuous, 118dB peak
8 ohms nominal per driver
120Hz internal passive low pass filter
44 litre (1.6 cu foot) particle board
construction
ENCLOSURE
CONNECTORS
DIMENSIONS
Separate binding post input connectors
for each driver including output
connectors for C115 and C516
loudspeakers
(W) 215mm x (H) 456mm x (D) 605mm
(W) 8.5ins x (H) 18.0ins x (D) 23.8ins
17.5 kg (38.5lbs)
WEIGHT
SHIPPING DIMENSIONS
(W) 280mm x (H) 510mm x (D) 680mm
(W) 11ins x (H) 20.1ins x (D) 26.8ins
19.5kg (43lbs)
SHIPPING WEIGHT
NOTES (Contractor Series – CS265)
Sensitivity measured in half-space conditions at 1 metre with 1 watt input,
using band limited pink noise.
SPL measured at 1 metre using band limited pink noise.
Finish: Black.
Due to our policy of continuous improvement all specifications are subject
to change without notice.
6
All material © 2007. Martin Audio Ltd. Subject to change without notice.
Martin Audio – CS265
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Contractor Series
CS265
Please Click here to
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MARTIN AUDIO
L O N D O N
The Martin Experience
Century Point, Halifax Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3SL, England.
Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669
All material © 2007. Martin Audio Ltd. Subject to change without notice.
CONTENTS
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Contractor Series
CS265
User’s Guide
ENGLISH
MARTIN AUDIO
L O N D O N
The Martin Experience
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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