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GRAVIS series front panel function description:

Important: Control functions and adjustment functions not described in this user's manual may cause 
mechanical danger or electrical shock.

3

GRAVIS 62

ON

OFF

CH2

CH1

PROT

CLIP
-5dB

-10dB

SIG

BRG

PAR

ON

-10

0

-1

-3

-5

-6

-8

-20

-80

dB

0

-1

-3

-5

-6

-8

-20

-80

dB

1. Installation socket 
    To be used to fix in 19" rack installation.
2. Air entrance
    This is the air entrance, don't block it. Since the dust will settle in the grille, please regularly remove 
    the screws to clean the filter under the grille, thus maintaining a good ventilation.
3. -5dB signal indicator LED
    When signal is at -5dB, this orange LED will be lit.
4. CLIP indicator
    When this indicator is on, it means the amplifier has distortion (CLIP). In this status, the distortion is 
    around 0.5%.
5. Protection Indicator
    When this indicator is lit, it means the amplifier is in protection status, which should be due to output 
    short-circuit, over-heat,DC, VHF (constant non-musical high frequency signal due to self-excitation 
    or long time high-frequencies feedback).
6. -10 dB signal indicator LED
    This green LED will be lit when signal at -10dB.
7. Signal indicator
    With signal is up to -22dB, the green indicator LED will be lit. This LED is on with an input level 
    around 0.35V.
8. Power ON Indicator
    When this indicator is on, it means the main power supply system of amplifier is working.
9. CH1 volume control
    In stereo or parallel mode: this knob controls CH1 volume. In bridge mode, this knob controls both 
    channels volume, while CH2 knob is disabled. 
    Gain control range: -80dB~0dB in 40 steps, available turning angle is 280 degree.
10.Bridge indicator
     When this indicator is lit the amplifier is on bridge mode, as set by rear panel dip switches.
11.Parallel indicator
     When this indicator is lit the amplifier is on parallel mode, as set by rear panel dip switches.
12.CH2 volume control
     In stereo or parallel mode, this knob controls CH2 volume. In bridge mode, this knob is inactive, the 
     amplifier volume is controlled by CH1 knob only. 
     Gain control range: -80dB~0dB in 40 steps, available turning angle is 280 degree.
13.Power Switch
     This switch is used to turn power on and off. Press the upper part to switch ON, and lower part to 
     switch OFF.

Содержание GRAVIS 24

Страница 1: ...Professional Power Amplifier User s Manual English GRAVIS SERIES GRAVIS 24 PROT CLIP 5dB 10dB SIG BRG PAR ON 80 0 1 3 5 6 8 10 20 dB CH1 0 1 3 5 6 8 10 20 dB CH2...

Страница 2: ...anel and function description 3 GRAVIS series rear panel and function description 4 GRAVIS series connections set up 5 Protection circuits 7 Ex factory settings 7 Use environment 7 Applications 7 Bloc...

Страница 3: ...s an amplifier output with any other amplifier output 8 In system setup amplifier s output power should be 50 greater than loudspeaker s rated handling power 9 Make sure the signal is correctly connec...

Страница 4: ...r long time high frequencies feedback 6 10 dB signal indicator LED This green LED will be lit when signal at 10dB 7 Signal indicator With signal is up to 22dB the green indicator LED will be lit This...

Страница 5: ...ee settings Whole system signal gain 32dB CH1 switches 3 4 ON CH2 switches 1 2 ON Whole system signal gain 1 0V CH1 switch 4 ON switch 3 OFF CH2 switch 2 ON switch 1 OFF Whole system signal gain 0 775...

Страница 6: ...tings 1 Stereo mode dip switches 3 and 4 are OFF OFF CH1 and CH2 have independent inputs and outputs Two channels volume are independently controlled 2 Parallel mode dip switch 3 is OFF and 4 is ON CH...

Страница 7: ...V 1 0V 32dB Made in China under license of MONTARBO ELETTRONICA S r l ITALY 1 1 OR OR IN OUT 1 1 PARALLEL 4 3 1 1 3 Bridge mode Setting amplifier s working mode to the PARALLEL channel 1 input only is...

Страница 8: ...ds In this case the PROT protection LED on the front panel will be lit the amplifier will have no output but it will be recovered automatically after 10 seconds protection circuit activation If the ou...

Страница 9: ...8 32dB 1 0V 0 775V 32dB 1 0V 0 775V 32dB 1 0V 0 775V Block diagram...

Страница 10: ...stereo power 8 bridge power 4 bridge power Frequency response THD N THD Slew rate Damping factor 100Hz Dynamic range Input Sensitivity Voltage gain Input Impedance Output circuit class Protection Coo...

Страница 11: ...AL 250V CAUTION REPLACE ONLY WITH SAME TYPE FUSE CH1 INPUT CH2 INPUT CH1 LINK CH2 LINK CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING TO REDUCE TH...

Страница 12: ......

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