0>( owners manual
ENGLISH Contents Contents 1 Introduction 1 Installation 2 Fitting Rubber Feet 2 Fitting to Rack 2 Initial Set Up 3 Set Up 3 Amp Panel & Controls 4 Specifications 6 Trouble Shooting 7 Owner Information 7 Introduction Thank you for your purchase of the IWA-250 subwoofer amplifier, which has been designed and constructed using quality systems and materials to provide years of enjoyment, reliability and pride of ownership. Music is and should be a natural enhancement of life.
Installation Leave the amplifier unplugged from the mains until the installation procedure is completed. If you are going to mount the amplifier on a shelf/ cabinet, fit the self adhesive rubber feet (illustrated below). If you are rack mounting it, please refer to the next section. Fitting Rubber Feet Fitting to Rack If installing in a rack or communications cabinet, you need to fit the supplied brackets first.
The optimal control settings will depend entirely on your system configuration, room environment and personal tastes. However, for initial trials set the controls as follows: Volume Control Should be set to approximately 10 o’clock. Frequency Control Should be set to the approximate frequency depending on main speakers when using the L & R Line Level Inputs. EQ Should be set to Movies when connecting to an AV receiver or Music when connecting to a stereo amplifier.
Amp Panel & Controls 1 2 3 4 5 6 SPEAKER OUTPUTS L 110-120V~ 7 AC110-120V~50-60Hz AC220-240V~50-60Hz 200 W 220-240V~ TRIGGER R STEREO INPUT 12V DC 8 9 LFE IN BALANCED LFE INPUT + - - 11 13 10 12 + FUSE: 110-120VAC T4.0AL/250VAC FUSE: 220-240VAC T4.0AL/250VAC DESIGNED IN THE UK, MADE IN CHINA. 14 7a 15 1. 12 Volt Trigger Input ~ Centre Pin = +12Vdc For external power control from AV amplifier/ receiver to the IWA-250.
8. Mains Power Switch The mains power switch should be switched to the ‘Off’ position when the IWA-250 will not be used for extended periods. The switch must be in the ‘On’ position for the subwoofer to function. 9. Power LED The LED indicates whether the unit is in standby mode or operational. It will be illuminated red when in standby, and green when operational. 10. EQ Switch This switch tailors the bass response of the subwoofer to your tastes. There are three settings: Music, Movies and Impact.
Specifications IWA-250 System Format Active sub-woofer amplifier Low Frequency Limit 25Hz Upper Frequency Limit Variable 40 – 120 Hz @ 24dB/Octave Amplifier Power Output 250W @ < 1% THD+N Drive Unit Parameters 4 - 8 Ohm Nominal Impedance Amplifier Classification Class D amplifier with Switch mode power supply (SMPSU) Cabinet Switch EQ Switch For use when using the dedicated back box Music/ Movie/ Impact Phase Control 0 & 180 degrees Auto Sensing Line Level > 3.
Should you experience any technical, or set-up problems with your amplifier please check the Trouble Shooting guide below: My amplifier will not turn on/ no power. s Is the LED illuminated on the front of the unit? If not, check your mains lead is properly connected both at the amplifier and at the mains outlet. Also check the fuse of the amplifier and mains plug (where fitted). s Is the LED red? If so, you have power going to the unit.
Monitor Audio Ltd. 24 Brook Road Rayleigh, Essex SS6 7XJ England Tel: +44 (0)1268 740580 Fax: +44 (0)1268 740589 Email: info@monitoraudio.co.uk Web: www.monitoraudio.com Designed in the United Kingdom Version 2.
