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Specifications

9

38dB

38dB

38dB

38dB

80dB

80dB

80dB

80dB

20V/us

20V/us

20V/us

GRAVIS 24 

~230V

±

10%/50-60Hz

Airflow from front panel to rear panel.

Class 2H

Class 2H

Class 3H

Class 3H

Soft start, short circuit, overload, DC, over-heat, THD clip/limit, output volume increase
gradually function after switch on, lack of voltage of SMPS, VHF, infrasound frequency
protection, over-power limit, output power will be limited if over-heat

MODEL

ITEM

8

Ω

 stereo power* 

4

Ω

 stereo power* 

2

Ω

 stereo power** 

8

Ω

 bridge power* 

4

Ω

 bridge power** 

Frequency response

THD+N(THD%)

Slew rate

Damping factor
(@100Hz)

Dynamic range

Input Sensitivity

Voltage gain

Input Impedance

Output circuit class

Protection

Cooling air-flow

Power voltage
frequency

Gross weight

Bal 20K/Unbal 10K

20V/us

2550W

3200W

4600W

6500W

1600W

2280W

3000W

4100W

450Wx2

750Wx2

1150Wx2

650Wx2

1100Wx2

1400Wx2

850Wx2

1400Wx2

2300Wx2

1200Wx2

2000Wx2

3000Wx2

S/N rate

90dB

90dB

90dB

90dB

12Kg

12Kg

15Kg

16Kg

>200

>200

>200

>200

<0.1%

<0.1%

<0.1%

<0.1%

20Hz-20KHz@8

,(+/-0.5dB)

Ω

32dB/1.0V/0.775V

32dB/1.0V/0.775V

32dB/1.0V/0.775V

32dB/1.0V/0.775V

GRAVIS 30

GRAVIS 46

GRAVIS 62

Power has been tested under EIAJ standard @ 230V.

Summary of Contents for GRAVIS 24

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 12: ......

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