APART REVAMP2250 User manual

REVAMP2250

Instruction manual

Instruction manualREVAMP2250

REVAMP2250 Manual

DIGITAL POWER AMPLIFIER

Safety ﬁrst!

• Caution! This professional device needs to be installed by

qualiﬁed personnel only.

• Please check the carton box for any kind of damage on

reception of the goods. In case of a damaged carton, please

contact your dealer before opening the carton.

• !!!! Danger !!!! Exposure to high sound levels may cause a

permanent hearing loss. Individuals vary considerably to sound

pressure level induced hearing loss but nearly everyone will

lose some hearing if exposed to high sound pressure levels for

a sufﬁcient amount of time. Therefore it is recommended that

all persons exposed to equipment capable of producing high

sound pressure levels, such as this ampliﬁer, be protected by

hearing protection while installing or operating this unit.

• Read all documentation before operating your equipment.

• Keep all documentation for future reference.

• Save the carton and packing material even if the equipment has

arrived in good condition.

• Should you ever need to ship the unit, use only the original

factory packing.

• Do not spill water or other liquids into or on the unit.

• Make sure power outlets conform to the power requirements

listed on the back of the unit.

• Do not use the unit if the electrical power cord is frayed or

broken.

• Always operate the unit with the AC ground wire connected to

the electrical system ground.

Instruction manualREVAMP2250

• Set level controls on ampliﬁers all the way down during power-

up to prevent speaker damage if there are high signal levels at

the inputs.

• Do not connect the inputs / outputs of ampliﬁers or consoles

to any other voltage source, such as a battery, mains source, or

power supply, regardless of whether the ampliﬁer or console is

turned on or off.

• Power down & disconnect units from mains voltage before

making connections.

• Do not use the unit near stoves, heat registers, radiators, or

other heat producing devices.

• Do not operate equipment on a surface or in an environment

which may distort the normal ﬂow of air around the unit. If the

unit is used in an extremely dusty or smoky environment, the

unit should be periodically “blown free” of dust.

• Do not remove the cover. Removing the cover will expose you

to potentially dangerous volt ages.

• Do not drive the inputs with a signal level higher than that

required to drive equipment to full output.

• Do not run the output of any ampliﬁer back into another input.

• In case of mal-function this device should be serviced by

qualiﬁed service personnel only.

• This unit has NOT been designed for use in mobile applications,

such as: mobile discobars, mobile PA systems, Live bands, audio

rental systems, …

CAUTION

TO REDUCE THE RISK OF ELECTRIC SHOCK

DO NOT REMOVE COVER OR BACK

NO USER-SERVICEABLE PARTS INSIDE

SERVICING ONLY FOR QUALIFIED PERSONNEL

DIGITAL POWER AMPLIFIER

Features

• 1 rack unit high

• High power Hypex® class-D power ampliﬁer modules

• Bridgeable 2 channel ampliﬁer

• Dynamic output power: 2x350W @ 4Ω

• Sine wave power per channel: 2x250W @ 4Ω (500 msec)

• Dynamic bridged output power: 700W @ 8Ω

• Bridged Sine wave output power: 500 W @ 8Ω (500 msec)

• High thermal efﬁciency

• Highest possible damping factor

• Soft start switching power supply unit

• No cooling fan

• Low power consumption

• Integrated Analog Devices® digital signal processor (DSP) with

easy one button operation: simply push the button to select an

operating mode, making this ampliﬁer the ideal multi purpose

tool for your applications

• LF ﬁlter for increased stability when using 100 volt transformers

on the output, allowing you to use 100 volt speakers as top

speakers combined with a standard low impedance subwoofer

for example

• Integrated APC limiter/compressor

• Balanced euroblock inputs

Instruction manualREVAMP2250

• Unbalanced inputs on RCA with pass through

• Input level attenuators on all inputs

• 4-pole Speakon® speaker output connectors

• Euroblock speaker output connectors

• Extended speaker and amp protection circuits: DC protect, over

current protect, over temperature protect, input overload

• Individual channel mute buttons and versatile LED status

indicators

• This unit has NOT been designed for use in mobile applications,

such as: mobile discobars, mobile PA systems, live bands, audio

rental systems, …

• Removable rack-ears

Note: the integrated APC limiter will automatically limit the

incoming audio signal to avoid overloads. This feature can not be

defeated and acts as a lifesaver for your valuable speakers.

12 13

3 4 5 6 8 9

2 7

DIGITAL POWER AMPLIFIER

1. Channel 2 overload led: when this led lights up, you are

overloading the input. Lower the input signal immediately to

prevent the ampliﬁer from shutting down.

2. Channel 1 overload led: when this led lights up, you are

overloading the input. Lower the input signal immediately to

prevent the ampliﬁer from shutting down.

3. Channel 2 input gain setting. Adjust the input gain to the

output level of your source. Make sure to avoid the clip led

lighting up at the strongest input peak level.

4. Channel 1 input gain setting. Adjust the input gain to the

output level of your source. Make sure to avoid the clip led

lighting up at the strongest input peak level.

5. DSP selector switch with led indicators: push the button to

scroll between the various pre-programmed DSP settings.

There are 6 possible DSP settings and 2 available combinations.

The settings will be memorized and recalled when the unit is

Connections

Instruction manualREVAMP2250

powered up. Full details of the available settings can be found

below.

6. Channel 2 speaker output on 2 pole euroblock connector.

7. Channel 1 speaker output on 2 pole euroblock connector.

8. Channel 2 speaker output on speakon connector. Pin 1+ =

speaker 2 +, pin 1- = speaker 2 -.

9. Channel 1 and 2 stereo speaker output on speakon connector.

Pin 1+ = speaker 1 +, pin 1- = speaker 1 -; Pin 2+ = speaker 2+,

pin 2- = speaker 2-. In bridge mode, pin 1 + = speaker +, pin

2+ = speaker-.

10. Channel 2 unbalanced input and link cinch connector: connect

the line level input signal for channel 2 here. Line level is 0 dBV.

Input and link connector are internally connected 1 on 1.

11. Channel 1 unbalanced input and link cinch connector: connect

the line level input signal for channel 1 here. Line level is 0 dBV.

Input and link connector are internally connected 1 on 1. This

connector is also used in bridge mode or when DSP mode CH1

SUB – CH2 TOP is selected.

12. Channel 2 balanced input on 3 pole euroblock connector.

13. Channel 1 balanced input on 3 pole euroblock connector. This

connector is used in bridge mode or when DSP mode CH1 SUB

– CH2 TOP is selected.

14. Mains inlet: connect the mains power cord here.

DIGITAL POWER AMPLIFIER

Operation

1. Removable rack ears for 19” rack mounting.

2. Power switch: after switching on the power, the power led will

light up after approx 1 second. The limit-muted leds will light

up for a few seconds to avoid excessive power on pop noise.

3. Power led

4. Channel 1 status led bar and mute switch: when the mute

switch is pressed, the orange “LIMIT – MUTED” led will light

up. This led will also light up when the internal limiter is

activated to avoid the ampliﬁer from being overloaded by high

input signals. The “CLIP – OVERLOAD” led indicates that the

power ampliﬁer is clipping: reduce the input signal at once

whenever this occurs !!! The green “SIGNAL - -40dB” led

will light up when an input signal is present. The red “INPUT

– OVERLOAD” indicates that the input is being overloaded.

Reduce the incoming signal at once !!!

5. Channel 2 status led bar and mute switch: when the mute

1 12 3 4 6

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