1. Pengenalan
Thank you for choosing the Pyramid 903G 10 Band Half-DIN Graphic Equalizer Amplifier. This unit is designed to enhance your car audio system by providing precise sound control and amplification. Please read this manual thoroughly before installation and operation to ensure proper use and optimal performance.
2. Maklumat Keselamatan Penting
- Pemasangan Profesional Disyorkan: Due to the complexity of car audio wiring, professional installation is highly recommended. Incorrect wiring can damage the unit or your vehicle's electrical system.
- Sumber Kuasa: This unit is designed for 12V DC negative ground systems only. Do not attempt to use it with other voltage sistem.
- Pengudaraan: Ensure adequate ventilation around the unit. The unit can generate heat during operation. Avoid installing in enclosed spaces without airflow.
- Pendawaian: Always disconnect the vehicle's battery before performing any wiring. Use appropriate gauge wires for power and speaker connections.
- Kelembapan: Jangan dedahkan unit kepada lembapan atau air.
- Perlindungan fius: Ensure proper fuse protection is in place for the power supply.
3. Produk Lebihview
3.1 Ciri-ciri
- Half-DIN Design (1-Inch Tall)
- 10 Band Graphic Equalizer with 12dB Boost/Cut per band
- Suis Hidupkan/Mati Kuasa
- Dual Channel Multi-Colored Power Level Indicators
- 100 Watts x 2 Maximum Output
- 2/4 Speaker Hook-up Capability
- Kawalan Fader
- Common or Floating Ground
- Automatic Overload Sensing Circuit
3.2 Kandungan Pakej
Sila pastikan semua item ada:
- Pyramid 903G Equalizer AmpUnit penguat
- Perkakasan Pemasangan (skru, kurungan)
- Wiring Harness (if included)
- Manual Pengguna (dokumen ini)
3.3 Kawalan Panel Hadapan

Rajah 1: Depan view of the Pyramid 903G Graphic Equalizer Amplifier. This image shows the 10 equalizer bands, power switch, fader control, and multi-colored power level indicators.
- Equalizer Bands (1-10): Sliders for adjusting specific frequency ranges.
- Suis ON / OFF Kuasa: Toggles the unit's power.
- Kawalan Fader: Adjusts the balance between front and rear speakers.
- Penunjuk Tahap Kuasa: Multi-colored LEDs indicating output power levels.
4. Pemasangan dan Pendawaian
Before beginning installation, ensure the vehicle's battery is disconnected to prevent electrical shorts. This unit is designed for 12V DC negative ground systems.
4.1 Pemasangan
- The 903G features a Half-DIN design, allowing for flexible installation in various vehicle dashboards or consoles.
- Choose a location that provides adequate ventilation to dissipate heat, as the unit can become warm during operation.
- Secure the unit using the provided mounting hardware.
4.2 Sambungan Pendawaian
Refer to the wiring diagram (if provided with your unit) for specific connections. The following describes general wiring principles:
- Kuasa (wayar MERAH): Connect to a switched 12V DC power source (e.g., ignition wire) that turns on and off with the vehicle's ignition. Ensure this connection is fused.
- Tanah (wayar HITAM): Connect securely to a clean, unpainted metal chassis point in the vehicle. A poor ground connection can lead to noise (ground loops).
- Remote Turn-On (BLUE wire - if present): Connect to the remote output of your head unit. This will turn the equalizer on and off with your head unit.
- Input Audio: Connect the speaker outputs from your head unit to the corresponding input terminals on the 903G. The unit supports 2 or 4 speaker hook-up.
- Output pembesar suara: Connect your vehicle's speakers to the output terminals of the 903G. Ensure correct polarity (+ to + and - to -). The unit supports 4-8 Ohm output impedance.
Note: The unit's wiring may be angled downwards, which can reduce effective wire length. Plan your wire routing accordingly.
5. Operasi
Once installed and wired correctly, follow these steps to operate your Pyramid 903G:
- Hidupkan kuasa: Turn on your vehicle's ignition and your head unit. If wired correctly, the 903G should power on automatically or by using its Power ON/OFF switch. The multi-colored power level indicators will illuminate.
- Pemeriksaan Bunyi Awal: Start with all equalizer bands set to the center (flat) position. Play a familiar audio track.
- Adjust Fader Control: Use the Fader control to balance the sound between your front and rear speakers to your preference.
- Penyamaan: Adjust the 10 equalizer band sliders to fine-tune the audio frequencies. Each band allows for up to 12dB of boost or cut.
- Lower frequencies (leftmost sliders) control bass.
- Mid-range frequencies (middle sliders) control vocals and instruments.
- Higher frequencies (rightmost sliders) control treble and clarity.
- Monitor Power Level Indicators: The multi-colored LEDs provide a visual indication of the amplifier's output. Avoid consistently high levels that may indicate clipping or distortion.
6. Penyelenggaraan
- Pembersihan: Use a soft, dry cloth to clean the unit's exterior. Do not use harsh chemicals or abrasive cleaners.
- Pengudaraan: Periodically check that the ventilation areas are not obstructed by dust or debris.
- Sambungan: Ensure all wiring connections remain secure. Loose connections can lead to intermittent sound or noise.
7. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada kuasa / Unit tidak dihidupkan |
|
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| Tiada keluaran bunyi |
|
|
| Engine noise (whine, hiss) |
|
|
| Unit gets excessively hot |
|
|
8. Spesifikasi
| Nombor Model | 903G |
| Reka bentuk | Half-DIN (1-Inch Tall) |
| Band Penyama | 10 Band |
| Julat Tingkatkan/Potong | +/- 12dB setiap jalur |
| Kuasa Output Maksimum | 100 Watt x 2 |
| Speaker Hook-up | 2/4 Speaker |
| Respons Kekerapan | 30Hz - 30kHz |
| Impedans Keluaran | 4-8 Ohm |
| Sistem Kuasa | Ground Negatif 12V DC |
| Dimensi (L x W x H) | 5-Inch x 7-Inch x 1-Inch (Product) |
| Berat badan | 1.7 pounds (Product) |
9. Maklumat Waranti
The Pyramid 903G comes with a 1 TAHUN limited warranty from the date of purchase. This warranty covers manufacturing defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, accident, misuse, abuse, neglect, unauthorized modification, or normal wear and tear. Please retain your proof of purchase for warranty claims.
10. Sokongan Pelanggan
For technical assistance, troubleshooting, or warranty inquiries, please contact Pyramid customer support. Refer to the official Pyramid webtapak atau dokumentasi pembelian anda untuk maklumat hubungan terkini.
Note: When contacting support, please have your product model number (903G) and proof of purchase readily available.