Matrix Amplification XT1000 Bedienungsanleitung PDF herunterladen (Seite 6)

5 XT 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. Parallel Mono Mode Indicators

This indicator shows if (parallel) MONO mode is selected on the rear panel.

For channel pair A and B only Input A will be used to drive both channels. Full

independent level control of the amplifier output stages is still possible via the Gain controls.

b. Bridged Mono Mode Indicator

This indicator shows if Bridged mode is selected on the rear panel. It is most

important that this indicator is not illuminated unless bridged mode is required.

This is because when bridged mode is selected, Channel A will be out of phase

with Channel B. This will result in poor bass response and an unsatisfactory sound

if left and right outputs are used. In this mode Channel A controls the output level..

(4) Indicator Section, Signal levels:

a. Output Level Display

These show the (Peak) output level of the amplifier for each channel, in both Stereo and

Mono modes. It is useful to note for trouble shooting, that the sensors for the Output Level

Display, detects levels after the output relays. Therefore if the display is operating, a signal is

present at the speaker sockets.

b. Limit Level Indicators

These illuminate to show that the amplifiers limiting circuitry is active. Repeated

illumination indicates that the amplifier is being driven excessively and a reduction

in level is recommended.

c. Protect Indicators

These indicators light briefly during the power up cycle and also light should a

fault occur. Illumination of the protect indicators, shows that the output of the

amplifier has been disconnected by means of an internal relay to protect connected

speaker systems from being damaged by the fault.

REV.1.17 MATRIX AMPLIFICATION

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Matrix Amplification XT1000 Bedienungsanleitung Seite 6