Martin Audio AQ28 User manual

AAQQ2288
Two-way passive reflex with dual bass drivers
PRELIMINARY DATA
features
Compact two-way passive system
Dual 8” (200mm) long-throw bass drivers
Extended LF performance
User rotatable 90º x 50º horn
High power output
Five year limited warranty
applications
Restaurants and bars
Theatres
Cruise Ships
Century Point, Halifax Road, Cressex Business Park,
High Wycombe, Buckinghamshire HP12 3SL, England.
Telephone: [phone] Facsimile: [phone]
E-mail: [email protected]
All information is Copyright © 2008 Martin Audio Ltd.
Due to Martin Audio’s policy of continuing improvement, we reserve the
right to alter these specifications without prior notice.
The AQ28 is a two-way, dual-bass driver, passive loudspeaker
designed to give extended LF performance from a compact,
architecturally neutral, vented enclosure. It features dual
8”(200mm) long-throw, 2”(50mm) coil direct-radiating bass units
and a 1.7”(44mm) diaphragm, 1”(25mm) exit compression driver,
mounted on a proprietary, rotatable 90° x 50° constant directivity
horn.
Below 250Hz both LF drivers operate together whilst above
250Hz only the upper LF driver is used to reproduce frequencies
up to the crossover point. This technique avoids the uneven polar
response which would occur if both drivers were operated over
the same frequency band. The LF drivers are also fitted with flux
demodulation rings, which reduce intermodulation distortion, in
order to preserve midband clarity at high signal levels.
architectual
www.martin-audio.com
overall dimensions
technical specifications
TYPE Two-way passive reflex with dual bass drivers
FREQUENCY RESPONSE (5) 60Hz-18kHz ± 3dB
DRIVERS 2 x 8” (200mm)/2” (50mm) voice coil LF drivers
1” (25mm) exit HF compression driver
RATED POWER (2) 300W AES, 1200W peak
RECOMMENDED AMPLIFIER 400W-1000W into 4 ohms
SENSITIVITY (6) 95dB
MAXIMUM SPL (7) 120dB continuous, 126dB peak
NOMINAL IMPEDANCE 6 ohms
DISPERSION (-6dB) 90º horizontal, 50º vertical
CROSSOVER 2.5 kHz passive
ENCLOSURE 20 litre, 15/18mm MDF
FINISH Textured light grey paint
PROTECTIVE GRILLE Grey perforated steel
CONNECTORS Low profile 20 amp push-lock
FITTINGS 6 x M8 inserts for bracket
2 x M8 inserts for safety point
DIMENSIONS (W) 258mm x (H) 660mm x (D) 255mm
(W) 10.2ins x (H) 26ins x (D) 10ins
WEIGHT 19kg (42lbs)