Nakamichi Digital Signal Processor
NDSR660A User Manual

Nakamichi NDSR660A Digital Signal Processor User Manual

INTRODUCTION AND TROUBLESHOOTING

Thank you for your purchase and welcome to the world of Nakamichi! Please keep your original proof of purchase or invoice in a sate place in case of any warranty claims. Do also mail or register your warranty With the official Nakamichi service centers and/or agents to ensure that you are provided with the relevant technical support if required.

NOTICE

  1. To prevent short circuit, please keep the device away from water or damp places.
  2. If water or any other liquid enters the device, cut off the power immediately, and inform the nearest Nakamichi Service Center or Agent to inspect the product.
  3. Users are not recommended to disassemble the device as there are no user serviceable parts inside, please contact the nearest Nakamichi Service Center if necessary.

TROUBLESHOOTING

Ensure all cables and parts are securely connected before turning on the power. Shown below is the basic troubleshooting procedure that you should follow.

Nakamichi NDSR660A Digital Signal Processor User Manual - Troubleshooting

WHAT’S IN THE BOX

Nakamichi NDSR660A Digital Signal Processor User Manual - What's in the box

PRODUCT TECHNICAL DATA

Product DataNakamichi NDSR660A Digital Signal Processor User Manual - Product Data

Technical Sheet

Nakamichi NDSR660A Digital Signal Processor User Manual - Technical Sheet

PRODUCT DIMENSIONS

Nakamichi NDSR660A Digital Signal Processor User Manual - Product Dimensions

INSTALLATION INSTRUCTIONS

Nakamichi NDSR660A Digital Signal Processor User Manual - Installation Instructions

THE SPEAKER WIRING IN NORMAL MODE

Nakamichi NDSR660A Digital Signal Processor User Manual - The Speaker Wiring in Normal Mode Nakamichi NDSR660A Digital Signal Processor User Manual - The Speaker Wiring in Normal Mode

INTRODUCTION

The machine interface diagram is as follows:

Nakamichi NDSR660A Digital Signal Processor User Manual - Product Overview

  1. The controller port
    Data call and total volume adjustment can be performed by the line controller.
    Nakamichi NDSR660A Digital Signal Processor User Manual - The Controller Port
  2. USB port Insert the USB ash drive and play the song in the USB ash drive under the player audio source.
  3. USB2.0 Port, Connect to the computer tuning software No need to download the driver installation, connected to the computer sound software installed automatically.
  4. Low level input port Connect up to 2 channels low level input.
  5. Coaxial input port When the coaxial input cable of in-car CD or DVD player is connected, the sound source of the DSP is switched to digital input, and coaxial digital signals can be played.
  6. Optical input port When the optical input cable of in-car CD or DVD player is connected, the sound source of the DSP is switched to digital input, and optical digital signals can be played.
  7. High level input portNakamichi NDSR660A Digital Signal Processor User Manual - High level input porta. “+” is positive or positive;” – ” is negative or inverted (ground).
    b. Before connecting the power supply, you must corm that the power supply meets the designed power requirements and connect in strict accordance with the equipment instructions. Otherwise, the equipment may be damaged and may cause accidents such as re, electric shock, etc.
  8. High level input port, High level output port
    Nakamichi NDSR660A Digital Signal Processor User Manual - High level input port,High level output port
  9. Machine start mode switch When the switch is turned to the “ACC” terminal, the machine is started by ACC, and when it is turned to the “HOST” terminal, the machine is started by the high level H1+/H1- input signal.
  10. Power indicator light/Protection indicator light
  11. Power portNakamichi NDSR660A Digital Signal Processor User Manual - Power port
  12. High level output port 5~8 power amplifier output.Nakamichi NDSR660A Digital Signal Processor User Manual - High level output port
  13. Low level output port Connect up to 16 channels low level output.
  14. High level output port 9~16 power amplifier output.

Nakamichi NDSR660A Digital Signal Processor User Manual - High level output port

SOFTWARE INTRODUCTION

PC Software Operation Introduction
(PC can be downloaded from the official website (http://www.nakamichicaraudio.com, CONTACT, downloads)) Computer Conjuration Requirements: Screen resolution higher than1280 x 768, otherwise the software Ul is incomplete, only suitable for windows operation system laptop, desktop and pads.

Nakamichi NDSR660A Digital Signal Processor User Manual - PC Software Operation Introduction

1. Menu editing area

Nakamichi NDSR660A Digital Signal Processor User Manual - Menu editing area

2. Function editing area

Nakamichi NDSR660A Digital Signal Processor User Manual - Function editing area
Main functions: scene, master source, mixer source, channel type, link, mixer and mode settings.

  • a. Scene: 6 sets of scene data can be recalled or stored.
  • b. Master source: Click the input audio source drop-down list to select the input audio source. AUX, BT, HI Level, OPT, COAX and USB. Click the auxiliary audio source drop-down list to select the input audio source. AUX, BT, HI Level, OPT, COAX, USB and OFF.

Nakamichi NDSR660A Digital Signal Processor User Manual - Master source

  • c. Reset: Click Reset to clear the channel type or restore the default channel type.
  • d. Link: Click the Link to set the Link synchronization mode: copy from left to right or copy from right to left.
  • e. Click “Mixer” to enter the mixing interface, the interface is as shown below.

Nakamichi NDSR660A Digital Signal Processor User Manual - Click Mixer to enter the mixing interface

f. Click “Audio” to switch Sound mode.
3. Main volume and software connection editing area
Nakamichi NDSR660A Digital Signal Processor User Manual - Main volume and software connection editing area

Main functions: master volume and computer software connection settings.
a. Main volume adjustment range: off, -59.9~6dB. Click the speaker button to mute the main volume.
b. Click the “Not Connected” button to connect the host with a PC.Nakamichi NDSR660A Digital Signal Processor User Manual - Click the Not Connected button

4. Output channel type editing area
Nakamichi NDSR660A Digital Signal Processor User Manual - Output channel type editing area

5. Channel delay, volume, phase editing areaNakamichi NDSR660A Digital Signal Processor User Manual - Channel delay, volume, phase editing area

  1. Push the fader left or right to adjust the sound size, or enter a value or roll the mouse wheel in the volume input box to adjust the sound size. Click the speaker button to switch mute.
  2. Positive phase adjustment: Click0°or180°to switch between positive phase and reverse phase.
  3. Delay: set the delay value by scrolling the mouse wheel in the delay input box, or enter the value to set the delay value.
  4. Delay Unit button: Click the drop-down list to select milliseconds, centimeters, and inches.

6. Channel divider editing area

Nakamichi NDSR660A Digital Signal Processor User Manual - Channel divider editing area

Main Function Setup: Channel High & Low Pass Filter Setup. Adjustable: Filter Type, Frequency point and Q Value (Gradient or Slope).

7. Equalizer editing areaNakamichi NDSR660A Digital Signal Processor User Manual - Equalizer editing area

  1. Reset EQ: It is used to restore the parameters of the all equalizer to the original pass-through
    mode (the frequency of the equalizer, the Q value and the gain are restored to the initial value).
  2. Restore EQ: Switch between the currently designed equalizer state parameters and the pass-through mode (the gain of all equalization points is restored to 0 dB, the frequency and value are unchanged).
  3. Click PEQ Mode to switch GEQ Mode. The Q value and frequency cannot be adjusted in the PEQ Mode interface.

8. Channel EQ editing area

Nakamichi NDSR660A Digital Signal Processor User Manual - Channel EQ editing area

Main function conjuration: Equilibrium design of current output channel, 31-band equalization adjustable: frequency, Q value (response bandwidth) and gain (increasing or decreasing the frequency response amplitude near the frequency point).

SOFTWARE INTRODUCTION(SMARTPHONE)

Smart-phone Software Operation Instruction
(APP can be downloaded from the official website(http://www.nakamichicaraudio.com, CONTACT, Downloads))

Nakamichi NDSR660A Digital Signal Processor User Manual - Smart-phone Software Operation Instruction

  1. Home interface
    It can restore factory settings, share sound effects, save sound effects, turn on local sound effects, check the model and version number of the unit, and exit the software operation; volume, master source, storage and recall of 6 sets of preset scenes.
    A. Connection Status:
    Red means not connected, green means connected.
    B. Menu:
    You can restore factory settings, share sound effects, save sound effects, turn on local sound effects, view the model and version number of the machine, and exit the software operation.
    C. Sound source:
    Master source: AUX / Bluetooth / Hi.level / OPT/Optical / USB to choose from. Auxiliary source: AUX / Bluetooth / Hi.level / OPT/Optical / USB /OFF to choose from.
    D. Volume adjustment:
    Press and hold the volume scale clockwise or counterclockwise to adjust the volume. The main volume range is 0~66, The subwoofer range is 0~60, The medium, high and low volume range is -12dB~ +12dB.
    E. Scene preset: There are 1~6 presets to choose from.
    F. Advanced settings: Click [Advanced Settings] to enter the settings of the delay interface, channel interface, EQ interface and mixing.
  2. Delay interface Sound eld positioning output delay adjustment.
    G. Unit switching: Switch between milliseconds, centimeters, and inches.
    H. Delay setting: Click setting window of the corresponding channel. Slide the dots left and right to set the delay value. Delay settings can be made for CH1~ CH16 speakers. Delay range: millisecond range: 0.000~ 20.000; cm range: 0~692; inch range: 0~273.
  3. Channel interface
    Channel high-low-pass crossover setting with high-low-pass independent ltering.Nakamichi NDSR660A Digital Signal Processor User Manual - Software Introduction
    Adjustable: Filter type, frequency and Q value (slope or slope).
    I. Output channel selection: Sixteen channels are available.
    J. Output channel volume setting: You can adjust the volume by sliding left and right. The volume range is 0~60. Click the speaker button to mute. Conjurable output channel type, forward and reverse switching.
    K. Channel divider selection: Channel type: Choose from Link-Rill, Butter-W and Bessel. Frequency Range: 20HZ~20KHz. Slope selection: 6dB/Oct, 12dB/Oct, 18dB/Oct, 24dB/Oct, 30dB/Oct, 36dB/Oct, 42dB/Oct,48dB/Oct and OFF can be selected.
    L. Joint tuning and channel type settings: Click [Reset] to reset the output channel type so that the output type can be customized. Click [Stereo] to switch between stereo mode and bridge mode. Click[link] the joint debugging window will pop up, and select the joint debugging method.
  4. EQ interface Corresponding to the adjustment of the output channel EQ curve (gain, Q value and frequency); reset equalization, pass-through equalization or parametric equalization operation settings.
    M. EQ display: Edit the display area.
    N. Output EQ gain, Q value and frequency settings:
    Output EQ gain setting: A total of 31 EQ. left and right sliding screen can select EQ, you can drag the slider up and down. Select the rst line value, and drag the slider bar left and right in the pop-up dialog box to adjust the adjustment range: -20dB ~ +20dB. Q value: Click the second line value, and drag the slider bar left and right in the pop-up dialog box to adjust, the adjustment range is 0.404 ~ 28.852. Frequency setting: Click the third line value, and drag the slider bar left and right in the pop-up dialog box to adjust it. The adjustment range is 20Hz ~ 20KHz.
    O. Reset equalization, restore equalization, pass-through equalization settings:
    Click [Reset EQ] to restore the parameters of the 31-band equalizer to the original pass-through mode (the equalizer frequency, Q value and gain are restored to their initial values). When there is channel adjustment, display [straight-through equalization], click [straight-through equalization], click [OK], all values (frequency, Q value and gain) will return to the initial value. At this time, the [straight-through equalization] button will become [recovery
    equalization]. Press the button and click [Resume Equilibrium], all values (frequency, Q value and gain) will be restored to the value before the pass-through. Click [P.EQ Mode], click [OK] to switch to Graphic Equalization, click [G.EQ Mode], click [OK] to switch to Parametric Equalization.
  5. Mixing interface
    Six sound source modes can be selected. It includes the mixing selection and adjustment of 10 groups of high-level, Bluetooth left and right channels, optical ber left and right channels, coaxial ber left and right channels and aux left and right channels. The adjustment range is 0-100.
Nakamichi NDSR660A Digital Signal Processor User Manual - QR Code
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NDSR660A User Manual PDF Download

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