1. Giriş
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. Önemli Güvenlik Bilgileri
- Profesyonel Kurulum Önerilen: 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.
- Güç Kaynağı: This unit is designed for 12V DC negative ground systems only. Do not attempt to use it with other voltage sistemleri.
- Havalandırma: Ensure adequate ventilation around the unit. The unit can generate heat during operation. Avoid installing in enclosed spaces without airflow.
- Kablolama: Always disconnect the vehicle's battery before performing any wiring. Use appropriate gauge wires for power and speaker connections.
- Nem: Üniteyi neme veya suya maruz bırakmayın.
- Sigorta Koruması: Ensure proper fuse protection is in place for the power supply.
3. Ürün Bittiview
3.1 Özellikler
- Half-DIN Design (1-Inch Tall)
- 10 Band Graphic Equalizer with 12dB Boost/Cut per band
- Güç Açma/Kapama Anahtarı
- Dual Channel Multi-Colored Power Level Indicators
- 100 Watts x 2 Maximum Output
- 2/4 Speaker Hook-up Capability
- Fader Kontrolü
- Common or Floating Ground
- Automatic Overload Sensing Circuit
3.2 Paket İçeriği
Lütfen tüm öğelerin mevcut olduğundan emin olun:
- Pyramid 903G Equalizer Amplifer Ünitesi
- Montaj Donanımı (vidalar, braketler)
- Wiring Harness (if included)
- Kullanım Kılavuzu (bu belge)
3.3 Ön Panel Kontrolleri

Şekil 1: Ön 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.
- Güç AÇMA/KAPAMA Anahtarı: Cihazın gücünü açıp kapatır.
- Fader Kontrolü: Ön ve arka hoparlörler arasındaki dengeyi ayarlar.
- Güç Seviyesi Göstergeleri: Multi-colored LEDs indicating output power levels.
4. Kurulum ve Kablolama
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 Montaj
- 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.
- Ürünle birlikte verilen montaj aparatlarını kullanarak ürünü sabitleyin.
4.2 Kablo Bağlantıları
Refer to the wiring diagram (if provided with your unit) for specific connections. The following describes general wiring principles:
- Power (RED wire): 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.
- Ground (BLACK wire): 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.
- Ses Girişi: 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.
- Hoparlör Çıkışı: 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. Operasyon
Once installed and wired correctly, follow these steps to operate your Pyramid 903G:
- Güç Açık: 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.
- İlk Ses Kontrolü: 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.
- Eşitleme: 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. Bakım
- Temizlik: Use a soft, dry cloth to clean the unit's exterior. Do not use harsh chemicals or abrasive cleaners.
- Havalandırma: Periodically check that the ventilation areas are not obstructed by dust or debris.
- Bağlantılar: Ensure all wiring connections remain secure. Loose connections can lead to intermittent sound or noise.
7. Sorun Giderme
| Sorun | Olası Neden | Çözüm |
|---|---|---|
| Güç yok / Ünite açılmıyor |
|
|
| Ses çıkışı yok |
|
|
| Engine noise (whine, hiss) |
|
|
| Cihaz aşırı derecede ısınıyor. |
|
|
8. Özellikler
| Model Numarası | 903G |
| Tasarım | Half-DIN (1-Inch Tall) |
| Ekolayzır Bantları | 10 Bantları |
| Arttırma/Kesme Aralığı | +/- 12dB per band |
| Maksimum Çıkış Gücü | 100 Watt x 2 |
| Speaker Hook-up | 2/4 Speaker |
| Frekans Tepkisi | 30Hz - 30kHz |
| Çıkış Empedansı | 4-8 ohm |
| Güç Sistemi | 12V DC Negative Ground |
| Boyutlar (U x G x Y) | 5-Inch x 7-Inch x 1-Inch (Product) |
| Ağırlık | 1.7 pounds (Product) |
9. Garanti Bilgileri
The Pyramid 903G comes with a 1 YIL 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. Müşteri Desteği
For technical assistance, troubleshooting, or warranty inquiries, please contact Pyramid customer support. Refer to the official Pyramid webEn güncel iletişim bilgileri için siteyi veya satın alma belgelerinizi inceleyin.
Note: When contacting support, please have your product model number (903G) and proof of purchase readily available.


