Nakamichi NBF 80A Owners Manual

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Nokomichi®

NBF80A

8" Super Compact Bass Enclosure

User Manual
www.nakamichicaraudio.com

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NokomichP

System Equipment

Thank you for your purchase, and welcome to Nakamichi! In order to enjoy thebetter service
from us, please keep your original invoice well and complete thewarranty card. Youd better
post the copy of the warranty card back to the appointed service agent of Nakamichi, so that
you may get more technical support.

ACCESSORY LIST

1.0wner's Manual 1piece
2.Mounting Screw (@4XZ5mm) 4piece
3.Mounting Screw (03Xl4mm) 2piece
4.Mounting Screw (04X6mm) 8piece
5.Wire Stock (6p) 10mm
6.Wire Stock (4p) 1piece
7.Remote Control 1piece
8.Mounting Bkt 4piece
9.3.0mmL"type Wrench 1piece
10.Magic Tape(38x80mm) 2piece

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Troubleshooting

NokomiChP

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.

SYMPTOM

POSSIBLE REMEDY

Products will not
power up.

Check to make sure you have a good ground connection.

Check that the Remote Input (Turn-On) has at least 5VDC.

Check that there is battery power on the (+) terminal.

Check that there is at least 12v.

Check all fuse, replace if necessary.

Make sure that the Protection LED is not illuminated. If it is lit, shut off
the amplifier briefly, and then repower it.

Protection LED
comes on when

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

amplifier is Check that there is good air circulation around the amp.
powered up
No output. Check that all fuses are OK.
Check that unit is properly grounded.
Check that the Remote Input (Turn-On) has at least 5VDC.
Check that the RCA audio cables are plugged into the proper inputs.
Low output. Reset the Level Control.

Check the Crossover Control settings.

High hiss in the
sound.

Disconnect all RCA inputs to the power sub's control panel. 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)

Squealing noise
is present.

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.

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 the RCA grounds are not shorted to the vehicle chassis
Check that the head unit is properly grounded.