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Troubleshooting

ONYX MOSFET Amplifier User’s Manual - page 18

ONYX MOSFET Amplifier User’s Manual - page 19

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 9

ONYX MOSFET Amplifier User’s Manual - page 15

ONYX MOSFET Amplifier User’s Manual - page 17

ONYX MOSFET Amplifier User’s Manual - page 4

General precautions

ONYX MOSFET Amplifier User’s Manual - page 3

Features About 2 Ohm operation

ONYX MOSFET Amplifier User’s Manual - page 6 ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

ONYX MOSFET Amplifier User’s Manual - page 16

ONYX MOSFET Amplifier User’s Manual - page 12

ONYX MOSFET Amplifier User’s Manual - page 8

ONYX MOSFET Amplifier User’s Manual - page 11ONYX MOSFET Amplifier User’s Manual - page 10

ONYX MOSFET Amplifier User’s Manual - page 7

SpecificationsNotes

If you experience operation or performance problems with this product, compare your

installation with the electrical wiring diagram on the previous pages. If problems persist,

read the following troubleshooting tips which may help eliminate the problems.

Protection LED

comes on when

amplifier is

powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still

comes on, then the amplifier is faulty and needs servicing.

High hiss in the

speakers.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then

plug in the component driving the amplifier and unplug its inputs. If the

hiss disappears at this point, go on until the faulty/noisy component is

found.

It is best to set the amplifier's input level control as low as possible. The

best subjective signal-to-noise ratio is achieved in this manner. Try to set

the head unit as high as possible (without distortion) and the amp input

level as low as possible.

Squealing noise

from speakers.

Check for improperly grounded RCA interconnects.

Distorted sound.

Check that the Input Level Control is set to match the signal level of the

head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Amplifier gets

very hot.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some

applications, it may be necessary to add external cooling fan(s).

Engine noise

(static type)

This is usually caused by poor quality RCA cables,which can pick up

radiated noise. Use only the best quality cables, and route them away

from power cables.

Engine noise

(alternator

whine)

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

Tri-Mode

Before installing and using your

new amplifier, please be-

come familiar with all the infor-

mation contained in this manual.

Please keep this manual in a safe

place for future reference.

• Do not open or attempt to repair

this unit yourself. Dangerous high

voltages are present which may result

in electric shock. Refer any repairs to

a qualified service technician.

• To avoid risk of electronic shock or

damage to the amplifier, do not permit

any of this equipment to become

damp or wet from water or drinks. If

this does occur, immediately unplug

the power wires and send the amplifier

to your local dealer or service center

as soon as possible.

• If there is smoke or any peculiar

odor present during use or if there is

damage to any of the component

enclosures, immediately unplug the

power wire and send the amplifier to

your local dealer or service center as

soon as possible .

7. Insert fuse(s) into the battery fuse

holder(s).

8. Recheck all connections before

powering up the amplifier.

9. Set all level controls to minimum

position, and set all crossover

controls/switches to the desired

frequency points.

10. Power up the head unit and the

amplifier. Then set the volume control

on the head unit to about 3/4 volume,

and adjust the amplifier’s input level

control(s) to just below the level of

distortion.

11. Further fine tuning of the various

controls may be necessary to obtain best

results.

Your ONYX amplifier has been

designed to operate efficiently at loads

down to 2 Ohms. This means that you

can install four 8 Ohm speakers per

channel, when using parallel wiring.

Increasing the number of woofers per

channel at low frequencies (below

100Hz) produces an acoustic coupling

effect. This acoustic coupling effect

increases your power output by about

3dB per speaker, or the equivalent of

an additional 10W per speaker.

When operating at 2 Ohms, the

amplifiers will increase their output

power by approximately 50%. The

current draw will also increase by

about the same amount, so be sure

you have enough current to run the

amplifiers into a 2 Ohm load.

If you lack adequate current, your

music reproduction will be distorted.

Low-level (RCA) input wiring is preferred for best audio performance. Always use

a high-quality RCA cable for best audio performance.

Tri-Mode

To Audio

Outputs of head

unit or signal

processor

High Level Input Wiring

Low Level Input Wiring

To Audio Outputs

of head unit or

signal processor

NX3000.2

NX2000.2

NX1600.2

Two Channel

MOSFET Car Audio

Amplifiers

NX3000.4

NX2500.4

NX2000.4

Four Channel

MOSFET Car Audio

Amplifiers

Congratulations on your

purchase of a

ONYX

Amplifier.

It has been designed, engineered

and manufactured to bring you

the highest level of performance

and quality, and will afford you

years of listening pleasure.

Thank you for making

your choice for car audio

entertainment!

NX2800.1

NX1800.1

MonoBlock

MOSFET Car Audio

Amplifier

All specifications subject to change without notice.

RMS POWER

into 4 Ohms

MAX POWER

into 2 Ohms

BRIDGED POWER

into 4 Ohms

Min. speaker

impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range

low pass

high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

MODEL

4-Channel MOSFET Amplifiers

RMS POWER

into 4 Ohms

MAX POWER

into 2 Ohms

BRIDGED POWER

into 4 Ohms

Min. speaker

impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range

low pass

high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

MODEL

2-Channel MOSFET Amplifiers

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz

n/a

Variable 0 - +18dB

25A x 2

15-1/8"

SYMPTOMPOSSIBLE REMEDY

Connect the Positive (+) terminal of the

subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the

subwoofer to the R (-) amplifier terminal.

Two

Channel

Mode

Bridged

Mode

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT

subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT

subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT

subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT

subwoofer to the CH2(-) amplifier terminal.

Chassis

ground

point

To FRONT

Audio Outputs

of head unit or

signal processor

To REAR

Audio Outputs

of head unit or

signal processor

To Speaker Terminals

of head unit

To Speaker Terminals

of head unit

1 2 3 4 5 6 ... 18 19

Inhaltsverzeichnis

Seite 1 - To Speaker Terminals

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 2

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 3

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 4

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 5

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 6

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 7

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 8

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 9

TroubleshootingT Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5ONYX MOSFE

Seite 10 - NX2000.4

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5ONYX MOSFET Amplifier User’s Manual - page 9ON

Seite 11 - NX2800.1

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 5ONYX MOSFET Amplifier User’s Manual - page 9O

Seite 12 - NX1600.2

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 13

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 14 - 6dB Passive Crossover

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 15

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 9

Seite 16

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 17

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 18

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

Seite 19

TroubleshootingONYX MOSFET Amplifier User’s Manual - page 18ONYX MOSFET Amplifier User’s Manual - page 19ONYX MOSFET Amplifier User’s Manual - page 5

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