Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier LOGO

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier IMAGE

INTRODUCTION

Thank you for your purchase, and welcome to Nokomichi! In order to enjoy better service from us, please keep your original invoice well and complete. You’d better post the copy of bock to the appointed service agent of Nokomichi so that you may get more technical support.

ACCESSORY LIST

  • User Manual:                                     LPC
  • Amplifier:                                          LPC
  • Mounting Screw (CD4 x 2mm):     4pcs
  • Fuse(40A):                                        3pcs

SPECIFICATIONS

SPECIFICATIONS
N-power Output@ 4 Ohm400W X 1
N-power Output@ 2 Ohm600W x 1
N-power Output@ 1 Ohm800W x 1
MAX Power3200W
T.H.D.<0.1%
Frequency Response20HZ – 20kHZ
Signal To Noise Ratio>90dB
Sensitivity0.15V – 8V
Fuse Size40A x3
Unit Dimensions ( L x H x W)322 x 222 x 54 mm
Net WeightApprox. 2.7 kg
Box Dimensions ( L x H x W)365 x 260 x 88 mm
Gross WeightApprox.3 kg

DIMENSIONS (UNIT: MM) 

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 1

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 2

POWER CONNECTION LEADS 

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 3

Notes on the power supply
Connect the + 12V power input lead only after all other leads have been connected. Be sure to connect the ground wire of the unit securely to a metal part of the car. A loose connection may cause a malfunction of the amplifier.

REMOTE: The unit is turned on by applying + l 2Volts to this terminal. This terminal does not draw heavy current like the two power terminals so a thinner connecting wire is acceptable. Standard 18 GAUGE is fine and the standard color is yellow. If the radio is equipped with a power antenna control wire, it can drive this terminal. If the power antenna wire is already in use, you can still splice it. With this method, the unit will turn on automatically with. Nakamichi the radio. Use the power supply lead with a fuse attached whose value is the same as the original fuse. Place the fuse in the power supply lead as close as possible to the car battery. During a full-power operation, Maximum current will run through the system. Therefore. Make sure that the leads to be connected to the + 12V and GND terminals of the unit respectively must be larger than 8-Gauge (AWG.8).

Power Connection Leads Power Connection Leads 

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 4

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 5

System 2: 1 channel mode

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 6

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier FIG 7

 TROUBLESHOOTING

SymptomPossible CauseAction To Take
no outputlow or no remote turn-on inputcheck remote turn-on voltage output at the amplifier and correct as needed
fuse blowncheck power wire integrity and reversed polarity, repair as needed, and replace the fuse
power wires not connectedcheck power wire and ground connections and repair of replacing as needed
audio input not connected or no output from sourcecheck input connections and signal integrity, repair or replace as needed
speaker wires not connectedcheck speaker wires and repair or replace as needed
audio cycles on and offspeakers are blowncheck system with known working speaker and repair or replace speakers as needed
thermal protection engages when amplifier heat sink temperature exceeds 90°Cmake sure there is proper ventilation for the amplifier and improve ventilation as needed
loose or poor audio inputcheck input connections and repair or replace as needed
distorted outputamplifier level sensitivity set too high; exceeding maximum output capability of the amplifierreset again referring to the tuning section of the manual for detailed instructions
impedance load to amplifier too lowcheck speaker impedance  load if below 2ohm stereo or 4ohm mono rewire speakers  to achieve a higher impedance
ishorted speaker wirescheck speaker wire connections and repair or replace as needed
speaker not connected to amplifier properlycheck speaker wiring and repair of replacing as needed refer to the installation section of this

manual for detailed instructions

SymptomPossible CauseAction To Take
 

distorted output

 

internal crossover not set properly for speaker

reset crossovers referring to the multi-cross crossover configuration section of this manual
 

distorted output (cont’d)

 

speakers are blown

check system with known working speakers and repair or replace as needed
poor bass responsespeakers wired wrong polarity causing cancellation at low frequenciescheck speaker polarity and repair as needed
crossover set incorrectlyreset crossovers referring to the multi-cross crossover configuration section of this manual for detailed instructions
distorted output (cont’d) 

impedance load to amplifier too low

check speaker impedance  load, if below 2ohn stereo or 4ohm mono rewire speakers to achieve a higher impedance
 

short in power wire or incorrect power connections

check power and ground connections and repair as needed
fuse used is smaller than recommendedreplace with proper fuse size
too much current being drawncheck speaker impedance load, if below 2ohm stereo or 4ohm mono rewire speakers to achieve a higher impedance
short in power wire of incorrectcheck power and ground connections and repair as needed

SCAN OUR QR CODE OR VISIT WWW.NAKAMICHICARAUDIO.COM FOR COMPLETE AUDIO SETTINGS INSTRUCTIONS
In nakamichi.global ii nakamichi.caraudio
Made in China

Documents / Resources

Nakamichi NKSD800.1 Class-D Mono Block Power Amplifier [pdf] User Manual
NKSD800.1, Class-D Mono Block Power Amplifier

References

Leave a comment

Your email address will not be published. Required fields are marked *