1. Giới thiệu
Thank you for choosing the Pyramid PW1248USX 12-Inch 8 Ohm Subwoofer. This manual provides essential information for the proper installation, operation, and maintenance of your subwoofer. The PW1248USX features a black strong non-pressed paper cone, non-fatiguing rubber suspension, a stamped steel basket, and a bumped & vented motor structure. It is equipped with a 2-inch high-temperature Kapton voice coil and an 8 Ohm impedance, designed for 300 Watts RMS and 500 Watts Peak power handling.
2. Tính năng sản phẩm
- Người mẫu: PW1248USX
- Loại loa: Loa siêu trầm 12 inch
- Chất liệu hình nón: Black Strong Non-Pressed Paper Cone
- Vây quanh: Non-Fatiguing Rubber Suspension
- Rổ: Stamped Giỏ thép
- Cấu trúc động cơ: Bumped & Vented
- Cuộn dây thoại: 2-Inch High Temperature Kapton
- Trở kháng: 8 Ohm
- Xử lý công suất: 300 Watt RMS / Đỉnh 500 Watt
- SPL @ 1W/1M: 89dB
- Trọng lượng nam châm: 60 oz.
- Đường kính tổng thể: 12.28 inch
- Độ sâu lắp đặt: 5 inch
3. Thông tin an toàn
Always ensure proper handling and installation to prevent damage to the subwoofer or other components. Disconnect power before making any connections. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Please handle with care and wash hands after handling.
4. Cài đặt & Thiết lập
4.1 Tháo dỡ
Carefully remove the subwoofer from its packaging. Inspect for any signs of damage during transit. Retain all packaging materials for future use or return if necessary.
4.2 Lắp đặt
The Pyramid PW1248USX is a 12-inch subwoofer designed for car audio or home theater applications. Ensure the mounting location provides adequate space and structural integrity to support the subwoofer's weight and accommodate its dimensions. The overall diameter is 12.28 inches, and the mounting depth is 5 inches. Proper enclosure design is crucial for optimal performance.

Bên view of the Pyramid PW1248USX subwoofer with key dimensions: 12.52 inches height, 12.8 inches width, and 6.06 inches mounting depth. This image illustrates the physical size and mounting requirements.
4.3 Đấu dây
This subwoofer has an 8 Ohm impedance. Connect the subwoofer to an appropriate amplifier output. Ensure correct polarity (+ to + and - to -) to avoid phase issues that can degrade sound quality. Refer to your amplifier's manual for specific wiring diagrams and impedance matching recommendations.
5. Hoạt động
Once installed and wired correctly, power on your audio system. Start with the volume at a low level and gradually increase it. Adjust the subwoofer's gain and crossover settings on your amplifier to blend seamlessly with your main speakers. Avoid operating the subwoofer at excessively high volumes for extended periods to prevent damage.

Đằng trước view of the Pyramid PW1248USX subwoofer, showcasing its black non-pressed paper cone and rubber suspension. This is the primary listening surface of the subwoofer.
6. Bảo trì
- Vệ sinh: Use a soft, dry cloth to wipe down the subwoofer cone and frame. Avoid using harsh chemicals or abrasive cleaners.
- Điều tra: Periodically check the speaker terminals for secure connections and inspect the rubber surround for any signs of wear or damage.
- Môi trường: Ensure the subwoofer is installed in a dry environment, away from direct sunlight and extreme temperatures.
KHAI THÁC. Xử lý sự cố
- Không có âm thanh: Check all wiring connections, ensuring they are secure and correctly polarized. Verify the amplifier đã được bật nguồn và hoạt động bình thường.
- Âm thanh bị méo: Reduce the volume level. Check amplifier gain and crossover settings. Ensure the subwoofer is not overdriven.
- Âm trầm yếu: Verify phase settings. Check enclosure integrity and ensure it is sealed properly if designed as a sealed enclosure.
8. Thông số kỹ thuật
| Tính năng | Đặc điểm kỹ thuật |
|---|---|
| Thương hiệu | Kim tự tháp |
| Số hiệu mẫu | PW1248USX |
| Loại loa | Loa siêu trầm |
| Đường kính loa siêu trầm | 12 inch |
| Đường kính loa trầm | 12 inch |
| Trở kháng | 8 Ohm |
| Công suất đầu ra tối đa của loa | 500 Watts (Cao điểm) |
| Xử lý nguồn RMS | 300 Watt |
| SPL @ 1W/1M | 89dB |
| Trọng lượng nam châm | 60 oz. |
| Độ sâu lắp đặt | 5 inch |
| Đường kính tổng thể | 12.28 inch |
| Kích thước sản phẩm (D x R x C) | 12.52"D x 12.8"W x 6.06"H |
| Trọng lượng sản phẩm | 7 Bảng Anh |
| Màu sắc | Đen |
| Nước xuất xứ | Trung Quốc |
9. Bảo hành & Hỗ trợ
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Pyramid webtrang web. Giữ lại bằng chứng mua hàng để yêu cầu bảo hành.