1. Pengenalan
This manual provides detailed instructions for the installation, operation, and maintenance of your EARTHQUAKE Sound XJ-700DSP LFE Class J 700W Subwoofer Amplifier. Please read this manual thoroughly before using the product to ensure proper functionality and to maximize your audio experience.
The XJ-700DSP is designed to precisely adjust your audio environment, offering advanced control through a mobile application. It features patented Class J circuitry for efficient power delivery, built-in Digital Signal Processing (DSP) with auto room correction, and up to 60dB/Oct filters. The amplifier also includes a Boundary EQ function to mitigate exaggerated bass from room acoustics or cabinet installations.
Rajah 1: Depan view of the XJ-700DSP Subwoofer Amppenguat, pertunjukancasinreka bentuk hitam yang anggun dan kawalan panel hadapannya.
2. Apa yang ada di dalam Kotak
Buang semua komponen dengan berhati-hati dan pastikan item berikut disertakan:
- XJ-700DSP Amplebih hidup
- Manual Pengguna (dokumen ini)
- Kawalan Jauh dengan Bateri CR2025
- Pendakap Pemasangan (untuk pemasangan rak)
Figure 2: Package contents, showing the XJ-700DSP amplifier, remote control, and rack-mount brackets.
3. Persediaan
3.1. penempatan
Place the XJ-700DSP amplifier in a well-ventilated area, away from direct sunlight, heat sources, and moisture. Ensure adequate space around the unit for proper airflow. The amplifier can be placed on a tabletop or rack-mounted using the included brackets.
3.2. Sambungan
Sebelum membuat sebarang sambungan, pastikan amplifier is powered off and unplugged from the AC outlet.
- Sambungan Input: Connect your audio source (e.g., AV receiver LFE output) to the RCA input jacks on the rear panel of the XJ-700DSP.
- Sambungan Output: Connect your passive subwoofer(s) or tactile transducers to the 5-way binding posts on the rear panel. Ensure correct polarity (+ to + and - to -). The amplifier supports 4-Ohm or greater load impedance.
- Kuasa AC: Verify the AC SELECTOR switch on the rear panel is set to the correct voltage for your region (115V or 230V). Connect the power cord to the amplifier and then to a grounded AC outlet.
Figure 3: Rear panel of the XJ-700DSP, showing RCA inputs/outputs, binding posts, AC selector, and other controls.
3.3. Kuasa Awal Hidup
After all connections are made, switch the MAIN POWER button on the rear panel to the ON position. The front panel power indicator will illuminate.
4. Arahan Operasi
4.1. Kawalan Panel Hadapan
Rajah 4: Terperinci view of the front panel, highlighting Power, Mode, Gain, and Pairing controls.
- Butang kuasa: Togol amplifier between ON and STANDBY modes.
- Butang MOD: Switches between preset EQ modes:
- Music Mode (Flat): Provides a neutral frequency response.
- Movie Mode (+8dB between 30Hz – 80Hz): Enhances low-frequency effects for cinematic content.
- Tombol GAIN: Melaraskan tahap keluaran keseluruhan bagi amplifier. Start with a low setting and gradually increase to achieve desired volume.
- PAIRING Button/Indicator: Used for Bluetooth pairing with the mobile app.
4.2. Rear Panel Controls
Figure 5: Rear panel controls, including Crossover, Phase, DSP, Boundary EQ, and Signal Sensing settings.
- BOUNDARY EQ Switch: Engages or disengages the Boundary EQ feature, which helps to reduce exaggerated bass caused by room acoustics or cabinet installations.
- CROSSOVER Knob: Adjusts the low-pass filter frequency, allowing you to blend the subwoofer's output with your main speakers. Range typically 40Hz-160Hz.
- Suis FASA: Adjusts the phase of the subwoofer output (0° or 180°) to ensure proper integration with main speakers.
- DSP Switch: Toggles the built-in Digital Signal Processing on or off. When ON, advanced settings are accessible via the mobile app.
- SIGNAL SENSING Switch: Menetapkan amplifier's auto-on/off behavior.
- AUTO: Amplifier turns on automatically when an audio signal is detected and enters standby after a period of inactivity.
- + 12V: Amplifier is controlled by a 12V trigger signal.
- ON: Amplifier remains on continuously.
4.3. App Controlled DSP
The XJ-700DSP features an advanced DSP that can be controlled via a dedicated mobile application. This app allows for precise adjustments, including:
- Auto Room Correction: Optimizes the subwoofer's response for your specific room acoustics.
- 8th Order Filters (up to 60dB/Oct): Provides steep crossover slopes for precise frequency control.
- EQ Parametrik: Fine-tune specific frequency bands.
- Delay and Phase Adjustments: Further optimize integration with main speakers.
Refer to the mobile application's instructions for detailed guidance on using these advanced features. To connect the app, ensure Bluetooth is enabled on your mobile device and press the PAIRING button on the amplifier's front panel.
5. Penyelenggaraan
- Pembersihan: Gunakan kain lembut dan kering untuk membersihkannya ampbahagian luar liifier. Elakkan pembersih atau pelarut yang melelas.
- Pengudaraan: Pastikan bukaan pengudaraan di bahagian atas dan sisi ampPenghawa dingin tidak terhalang untuk mengelakkan pemanasan melampau.
- Kord Kuasa: Periksa kord kuasa secara berkala untuk sebarang kerosakan. Jika rosak, gantikannya dengan segera dengan kord yang diluluskan.
6. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada kuasa | Power cord disconnected; Main power switch off; Blown fuse; AC selector incorrect. | Check power cord connection; Ensure main power switch is ON; Replace fuse (refer to specifications for rating); Verify AC selector setting. |
| Tiada bunyi daripada subwufer | Incorrect input/output connections; Gain too low; Subwoofer not connected; DSP off. | Verify all audio connections; Increase GAIN; Ensure subwoofer is properly wired; Check if DSP is enabled. |
| Bunyi herot | Gain too high; Incorrect crossover/phase settings; Subwoofer impedance mismatch. | Reduce GAIN; Adjust CROSSOVER and PHASE settings; Ensure subwoofer impedance is 4-Ohm or greater. |
| Isu sambungan apl | Bluetooth not enabled; Amplifier not in pairing mode; App not installed. | Enable Bluetooth on your device; Press PAIRING button on amplifier; Install the correct EARTHQUAKE Sound app. |
7. Spesifikasi
The following table details the technical specifications and dimensions of the XJ-700DSP Subwoofer Amplebih hidup:
| Ciri | Perincian |
|---|---|
| Model | XJ-700DSP |
| Output Kuasa | 1 x 700 WRMS @ 4Ω, 1 x 400 WRMS @ 8Ω |
| Respons Kekerapan | 18Hz-160Hz |
| Penapis Lulus Rendah | 40Hz-160Hz |
| Herotan Harmonik | < 0.02% (1W/4-Ohm) |
| Nisbah Isyarat kepada Bunyi | > 112dB (Balanced), > 108dB (Unbalanced) |
| Impedans Beban | 4-Ohm or greater |
| Sambungan Input | RCA |
| Sambungan Keluaran | Binding Posts (5-Way), RCA (DSP OUT) |
| Rak boleh dilekap | Ya (1U) |
| Dimensi Produk (D x W x H) | 11.06" x 19" x 1.92" (281mm x 482.5mm x 49mm) |
| Berat Barang | 19 paun (8.6 kg) |
| Kaedah Kawalan | App, Manual Knobs/Switches |
| Sumber Kuasa | AC |
| Komponen yang Disertakan | XJ-700DSP Amplifier, User Manual, Remote Control with CR2025 Battery |
| UPC | 689759001973 |
Figure 6: Technical specifications and dimensional drawing of the XJ-700DSP.
8. Waranti dan Sokongan
EARTHQUAKE Sound products are designed for reliability and performance. For warranty information, please refer to the warranty card included with your product or visit the official EARTHQUAKE Sound webtapak. Simpan resit pembelian anda sebagai bukti pembelian untuk tuntutan waranti.
For technical support, troubleshooting assistance, or service inquiries, please contact EARTHQUAKE Sound customer service. You can find contact information on their official webtapak atau melalui peruncit tempat anda membeli produk tersebut.
rasmi Webtapak: www.earthquakesound.com
