1. 서론
The NVX XDSP28 is an advanced 8-channel Digital Signal Processor (DSP) designed to enhance your car audio system. It features a 15-band parametric equalizer, adjustable high and low-pass filters, and various crossover types for precise sound customization. With 2 RCA inputs and 8 RCA outputs, built-in Bluetooth for audio streaming, and a remote level controller, the XDSP28 provides comprehensive control over your vehicle's sound environment. This manual provides detailed instructions for installation, operation, and troubleshooting to ensure optimal performance of your device.
2. 안전 정보
- 설치 및 사용 전에 모든 지침을 주의 깊게 읽으십시오.
- Disconnect the vehicle's negative battery terminal before making any electrical connections.
- 전기 위험을 방지하기 위해 적절한 접지를 확인하십시오.
- 본 제품을 습기나 극한의 온도에 노출시키지 마십시오.
- 차량 운행 중 움직임을 방지하기 위해 장치를 단단히 고정하십시오.
- 설치 단계에 대해 잘 모르는 경우 전문 자동차 오디오 설치자에게 문의하세요.
3. 패키지 내용
패키지에 모든 품목이 들어 있는지 확인하세요.
- NVX XDSP28 Digital Signal Processor Unit
- Remote Level Controller with Cable
- 사용자 설명서
- 장착 하드웨어(나사 등)
4. 제품 오버view
Familiarize yourself with the components and controls of the NVX XDSP28.
Figure 4.1: NVX XDSP28 Front Panel with Labeled Components
- Remote Out Sequencer: Activates other devices in sequence through a remote connection.
- 원격 입력(REM IN): 회전합니다 amplifier on automatically with the radio or player.
- Ground Connector (GND): Connect to the battery's negative terminal.
- Positive Power Connector (+BAT): Connect to the battery's positive terminal.
- LCD 디스플레이: Displays information and allows interaction with the processor.
- Main Control: A rotating knob to adjust processor system settings and navigate menus.
- Input LED Indicator: Shows when the channel's limiter is active or output is saturated.
- Remote Level Input: Connects the external remote level controller. Controls all eight outputs simultaneously.
- Audio Input (Inputs A, B): Independent RCA connectors for channels A and B.
- Audio Output (Outputs 1-8): RCA connectors for outputting processed audio.
- 출력 LED 표시기 : Signals when the input signal is at maximum level.
- 출력 선택: Quickly press to adjust output channels or hold to mute.
그림 4.2: 상단 view of the NVX XDSP28 unit, showing the main control knob, LCD display, and input/output connections.
그림 4.3: 후면 view of the NVX XDSP28, highlighting the power and remote connections.
Figure 4.4: The remote level controller for the NVX XDSP28, used for simultaneous output control.
5. 설정 및 설치
최적의 성능을 위해서는 올바른 설치가 매우 중요합니다. 다음 단계를 주의 깊게 따르세요.
- 설치: Select a secure, dry location in your vehicle, away from heat sources and moisture. Use the provided mounting hardware to firmly attach the DSP unit.
- 전원 연결 :
- 연결하다 +BAT terminal to the vehicle's positive battery terminal (or a constant 12V source) using appropriate gauge wire and an inline fuse (not included).
- 연결하다 접지 terminal to a clean, unpainted metal surface on the vehicle chassis, ensuring a solid ground connection.
- 연결하다 렘 인 terminal to the remote turn-on output of your head unit or ignition switch.
- 오디오 입력 연결: 헤드 유닛의 RCA 출력을 다음에 연결하세요. Inputs A 그리고 B on the XDSP28.
- 오디오 출력 연결: 연결하다 출력 1-8 of the XDSP28 to the RCA inputs of your amplifiers. Ensure correct channel assignment for your speaker configuration.
- Remote Level Controller: Plug the remote level controller cable into the 원격 port on the DSP unit. Mount the controller in an accessible location for easy adjustment.
- 초기 전원 켜기: Reconnect the vehicle's negative battery terminal. The DSP should power on, and the LCD display will illuminate.
6. 운영
The NVX XDSP28 offers extensive control over your audio system. All settings are adjusted via the Main Control knob and the LCD display.
6.1 메뉴 탐색
- 회전하다 메인 컨트롤 knob to scroll through menu options.
- 를 누르세요 메인 컨트롤 knob to select an option or confirm a setting.
- 를 누르고 계세요 메인 컨트롤 knob to exit a menu or return to the previous screen.
6.2 평형화(EQ)
The XDSP28 features a 15-band parametric equalizer for precise frequency adjustments.
- Graphic EQ Presets: Select from 12 pre-defined graphic equalization presets such as Rock, Hip Hop, Pop, Vocal, and more.
- 파라 메트릭 EQ : Manually adjust gain, frequency, and Q-factor for each of the 15 bands on both input and output channels.
6.3 Crossover Function
Configure high-pass and low-pass filters for each output channel to optimize speaker performance.
- Adjust cut frequencies for high-pass and low-pass filters.
- Select various crossover types and filter slopes (e.g., Butterworth, Linkwitz-Riley).
6.4 Time Alignment and Phase
Achieve perfect sound staging by adjusting the delay for each output channel.
- Adjust time delays in 0.02 ms increments.
- Set phase adjustments to 0° or 180° for each output.
6.5 Independent Gain and Limiter
- Independent Gain: Adjust the gain level for each output channel individually.
- 리미터: The integrated Limiter with Dynamic Attack-Release system protects your amplifiers and speakers from over-excursion and clipping.
6.6 오디오 생성기
Utilize the built-in audio tone generator for precise tuning and system diagnostics.
- Generate frequency sweeps.
- Generate pink noise for RTA (Real-Time Analyzer) measurements.
6.7 블루투스 연결
The XDSP28 features built-in Bluetooth for wireless audio streaming from your mobile device.
- Pair your device with the XDSP28 via Bluetooth settings on your phone.
- Bluetooth is for audio playback only; it does not support app-based control of DSP settings.
6.8 Remote Level Controller
The external remote level controller allows for convenient, simultaneous adjustment of all eight output levels.
7. 유지관리
- Keep the unit clean and free of dust. Use a soft, dry cloth for cleaning.
- 강한 화학물질이나 연마성 세척제의 사용은 피하세요.
- 모든 연결부가 단단히 고정되어 있는지 확인하십시오. 배선에 마모나 손상 흔적이 있는지 주기적으로 점검하십시오.
8. 문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| No power to the DSP. | Incorrect power wiring; Blown fuse; Loose ground connection. | Check +BAT, GND, and REM IN connections. Verify fuse integrity. Ensure a solid ground connection. |
| 소리가 출력되지 않습니다. | Incorrect input/output connections; DSP muted; Amplifier not powered on; Incorrect source selection. | Verify all RCA connections. Check DSP mute status (Output Select button). Ensure amplifiers are receiving remote turn-on signal. Confirm correct input source (A, B, or A+B). |
| 왜곡되거나 음질이 좋지 않습니다. | Incorrect EQ settings; Improper crossover settings; Input signal too high/low; Limiter engaged excessively. | Adjust EQ settings. Review crossover frequencies and slopes. Check input gain levels. Monitor Input LED indicators for clipping. |
| 블루투스 연결 문제. | 기기가 페어링 모드가 아닙니다. 간섭이 발생했습니다. 이미 다른 기기에 연결되어 있습니다. | Ensure Bluetooth is enabled on your device and the DSP. Disconnect from other Bluetooth devices. Move closer to the DSP. |
| Main Control knob is overly sensitive. | Characteristic of the control mechanism. | Exercise caution and precision when rotating and pressing the knob for menu navigation and setting adjustments. |
| Remote Level Controller causes input glitches. | Potential unit-specific issue or interference. | Ensure the remote cable is securely connected and not damaged. If issues persist, try operating without the remote controller to isolate the problem. Contact support if necessary. |
9. 사양
| 특징 | 사양 |
|---|---|
| 모델 | NVX XDSP28 |
| 채널 수 | 8(출력) |
| 입력 채널 | 2 RCA |
| 출력 채널 | 8 RCA (up to 2 Volts output) |
| 평형 장치 | 15밴드 파라메트릭 EQ |
| 신호 대 잡음 비율 | > 94dB |
| 총 고조파 왜곡률(THD) | 0.01% |
| Time Adjustment Increments | 0.02밀리초 |
| 위상 조정 | 0° 또는 180° |
| Graphic EQ Presets | 12 (Rock, Hip Hop, Pop, Vocal, etc.) |
| 최소 공급량tage | 10볼트(DC) |
| 최대 공급량tage | 16볼트(DC) |
| 치수(길이 x 너비 x 높이) | 7.87" x 3.98" x 1.46"(200mm x 101mm x 37mm) |
| 품목 무게 | 0.7 킬로그램 |
| 블루투스 | Built-in (for audio streaming) |
| Remote Level Controller | Included, for simultaneous output control |
10. 보증 및 지원
NVX products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your product or contact the retailer where the product was purchased. Keep your proof of purchase for warranty claims.
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact NVX customer support or the authorized dealer. Contact information can typically be found on the manufacturer's official web사이트나 소매업체를 통해 구매하세요.