CONTENTS: Page Thank You 1 1. Features and Innovations 2 2. Specifications Thank You Congratulations on the purchase of your new Matrix Professional Power Amplifier. Matrix products are the result of a collaboration between Designers, Engineers and Musicians with many decades of experience in the design and practical in field application of exceptionally robust, reliable and ergonomic audio equipment.
GT SERIES USER MANUAL 3 1. Features and Innovations All our amplifiers have been designed to give the best possible performance for their intended application and are based on our own uncompromising, time proven MOSFET designs. These take advantage of components which will stand the test of time and give the best possible performance in a small, exceptionally light weight package.
GT SERIES USER MANUAL 2.1 Technical Specifications GT 1500 FXBD Number of Channels: 3 Watts Per Channel at - 16 Ω: 150 Watts Per Channel at - 8 Ω: 300 Watts Per Channel at - 4 Ω: 500 - Supply Voltage: 230V +/- 15% Internally Selectable Alternative Voltage: 110V +/- 15% Average Supply Current, Full Load: 6A (12A at 110v) Mains Connector: 10A IEC Frequency Response: 8–24,000 Hz Signal to Noise Ratio (ref. Full power 1kHz): 96 dB THD (1kHz, full power): 0.
GT SERIES USER MANUAL 5 2.2 Basic Schematics. Output Connections: Output Connector Format Options: REV.1.
GT SERIES USER MANUAL . 3. Interface Elements, Front Panel. . (1) Power Switch This switch controls the power supply to the amplifier. There is a short delay on power-up, this is to avoid switch-on "thump" which could damage the loudspeakers. . (2) Gain Controls The level of each Channel is individually adjusted by these controls. Rotating these controls fully clockwise, results in no attenuation to the incoming audio signals. . (3) Indicator Section, Status: a.
GT SERIES USER MANUAL 7 3. Interface Elements, Rear Panel. . (5) Cooling Fan Outlet . Hot air exits here. Make sure all rear (and front) ventilation paths are free from obstruction and air flows freely, otherwise the amplifier will trip into thermal protect mode prematurely and in some extreme circumstances damage may occur. (6) Output Connectors . The Output sockets are Neutrik Speakons and accept a Neutrik NL4FC plug.
GT SERIES USER MANUAL
GT SERIES USER MANUAL 9 (7) Input Signal Sockets . These are combined female XLR and 1/4" jack sockets. They provide a number of connection possibilities, including the industry standard Balanced XLR system, which helps ensure interference and noise free connections between equipment. Ready-made, sensibly priced, quality interconnection leads suitable for use with the amplifier should be easy to source. However, with sufficient skill, it is possible to make/modify leads for the task.
GT SERIES USER MANUAL — Increase the separation between the equipment and receiver. — Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. — Consult the dealer or an experienced radio/TV technician for help. 4. Recommended Usage: To ensure your speaker and amplifier system functions optimally, it is advised to read through everything covered in this manual.
GT SERIES USER MANUAL REV.1.
GT SERIES USER MANUAL 5. Cables, Making your own. 5.1 Signal Level Leads. Standard Audio Connectors: Cable Maker Table: Cable Connections: Cable Type: Ground/Screen Red/Central Cable White balanced to balanced 1 to 1 2 to 2 3 to 3 balanced to unbalanced 1 to 1 2 to 2 3 tied to 1 unbalanced to unbalanced 1 to 1 2 to 2 - Note: Shell Ground tab on XLR connectors is usually tied to ground at pin 1.
GT SERIES USER MANUAL 13 5.2 Speaker Leads. Speakon Connector (4 pin) and 1/4” Jack: Cable Maker Table: Cable Connections: Cable Type: Single Channel, 2 core lead. + and - + and - 1 to 1 - Outputs A, B and C - 4 ohms min. load Bridged (mono) mode. Not Applicable. Choosing a suitable Cable: For most applications we recommend a twin core cable with a copper core of at least 2.5mm 2 / 12 awg & sold for the purpose of connecting power amplifiers to loudspeakers.
GT SERIES USER MANUAL
GT SERIES USER MANUAL 15 6. International Voltage Selection Although the GT series amplifiers are labelled as per the voltage of the region they are sold for use within, it is possible with most models to select alternative region voltages internally via an on-board switch. This allows for selection of 230v or 110v modes respectively at +/- 15%. This is approximately 200 to 265v or 95 to 125v. If you are unsure about undertaking this procedure, please refer to qualified service personnel. .
GT SERIES USER MANUAL
GT SERIES USER MANUAL 17 7. TROUBLE SHOOTING. . (1) ALWAYS: ● Ensure wiring is safe and correct. ● Ensure the amplifier has no less than 4 Ohms worth of loading across each channel. . (2) NORMAL ARTIFACTS: ● ● . When heavily driven, the amplifier itself may make a noticeable hissing sound in relation to the supplied signal. This is a normal phenomenon relating to the behaviour of certain components which vibrate slightly under the high powers involved.
GT SERIES USER MANUAL If the amplifier is to be shipped, use factory packaging or other secure method as transit damage is not covered by the warranty. Full Two Year Warranty Summary of Warranty .
GT SERIES USER MANUAL 19 Declaration of CE Conformity Issuers Name and Address: Andrew Hunt, MATRIX AMPLIFICATION LIMITED, Unit 1b, Techways, Wonastow Road Industrial Estate, Monmouth, Wales, NP25 5JA. Products: GT1500FXBD Equipment Type: Commercial Audio Power Amplifiers. Safety Standard: AMD1: 2005 and IEC 60065: 2001 7th Ed. Safety Requirements - Audio Video and Similar Electronic Apparatus.
Signatories: Andrew Hunt, Managing Director. GT SERIES USER MANUAL Date of Issue: 15 October 2012.
