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Martin Audio Limited.
Century Point, Halifax Road, Cressex Business Park,
High Wycombe, Buckinghamshire HP12 3SL, England.
UK
Telephone: +44 (0)1494 535312
Facsimile: +44 (0)1494 438669
E-mail: info@martin-audio.com
USA
Telephone: 519 747 5853
Facsimile: 519 747 3576
E-mail: infona@martin-audio.com
All information is Copyright ©2008 Martin Audio Ltd.
Martin Audio and the Martin Audio Logo are trademarks of Martin Audio Ltd
and are registered in the United Kingdom, United States and other countries.
architectural and engineering specifications
The loudspeaker shall be a self-powered subwoofer with a
single 21" (530mm) diameter cone transducer with a rated
power of 2500W AES. The loudspeaker shall incorporate an
integral Class D amplifier module with a peak output power of
8500W, a DSP system and a differential pressure sensor.
Performance specifications of the complete system shall be as
follows: Frequency response 30-150Hz ± 3dB. Maximum peak
SPL 152dB, measured at 1 metre. The audio input connector
shall be an XLR type female, with an XLR type male link.
The power supply shall have global mains operation over an
operating range of 85V AC – 270V AC, 50/60Hz, with Power
Factor Correction. The AC power connector shall be a Neutrik
®
Powercon
®
.
All loudspeaker components shall be mounted in a
multi-laminate, birch ply enclosure with removable wheels.
Install dimensions shall be: (W) 1200mm x (H) 600mm x
(D) 1200mm, (W) 47.24ins x (H) 23.62ins x (D) 47.24ins.
Dimensions (inc. wheels) shall be: (W) 1328mm x (H) 600mm
x (D) 1200 mm, (W) 52.28ins x (H) 23.62ins x (D) 47.24ins.
Weight 160kg (353lbs).
The loudspeaker shall be the Martin Audio ASX active
subwoofer.
technical specifications
ACOUSTICAL
TYPE Hybrid
®
horn/reflex active subwoofer
FREQUENCY RESPONSE (1)
30-150Hz ± 3dB
MAXIMUM PEAK SPL (2) 152dB
RECOMMENDED CROSSOVER
60-120Hz
DRIVER
TYPE 21" (530mm) diameter/ 6" (150mm) voice coil
PEAK DISPLACEMENT ± 1.2" (30 mm)
MECHANICAL DAMAGE LIMIT
± 1.5" (38mm)
RATED POWER 2500W AES, 10000W peak
AUDIO INPUT
CONNECTORS Female XLR input, male XLR link output
INPUT IMPEDANCE 10kΩ, balanced to ground
NOMINAL SYSTEM GAIN 32dB
INPUT LEVEL FOR MAX SPL
3.5V rms
S/N RATIO >105dB
DISTORTION (100Hz) <0.05%
AMPLIFIER SECTION
TYPE Single channel switchmode, fixed frequency
PK-PK OUTPUT VOLTAGE
390V
PK-PK OUTPUT CURRENT
200A
AVERAGE EFFICIENCY 85%
PEAK OUTPUT POWER 8500W
COOLING 2 x temperature controlled, variable speed fans
1 x forced air blower, venting in to horn mouth
POWER SUPPLY SECTION
TYPE Switchmode, fixed frequency with PFC
AC INPUT OPERATING RANGE
85V AC – 270V AC, 50/60Hz
AC OVERVOLTAGE TOLERANCE
400V AC
POWER FACTOR > 0.95
AVERAGE POWER CONSUMPTION
300VA
MAINS CONNECTOR Neutrik
®
Powercon
®
DSP CONTROL INPUT
RS485 PORT RJ45 socket
GENERAL
ENCLOSURE Extensively braced, multi-laminate birch ply
FINISH Black textured paint
PROTECTIVE GRILLE Perforated steel
FITTINGS 2 pocket handles on each side, 2 wooden skids on
top and bottom, 4 removable castors for transportation
INSTALL DIMENSIONS (W) 1200mm x (H) 600mm x (D) 1200mm
(W) 47.24ins x (H) 23.62ins x (D) 47.24ins
DIMENSIONS (W) 1328mm x (H) 600mm x (D) 1200mm
(INC. WHEELS) (W) 52.28ins x (H) 23.62ins x (D) 47.24ins
WEIGHT 160kg (353lbs)
Notes:
1. Measured in half-space
2. Measured in half-space at 1 metre with band-limited pink noise