1. Pengenalan
Terima kasih kerana membeliasing the Rockford Fosgate T400X4ad Compact 4-Channel Car Amppengikat. ini amplifier is designed to deliver high-quality audio performance in a compact form factor, suitable for various vehicle types. This manual provides essential information for proper installation, operation, and maintenance to ensure optimal performance and longevity of your amplebih hidup.
2. Maklumat Keselamatan
Please read all instructions carefully before installing or operating your amplifier. Failure to do so may result in personal injury or damage to the amppenguat atau kenderaan.
- Bahaya Elektrik: Sentiasa putuskan sambungan terminal negatif bateri kenderaan sebelum memulakan sebarang pemasangan.
- Pemasangan Profesional: If you are unsure about the installation process, seek assistance from a qualified professional.
- Pendawaian: Ensure all wiring is properly routed and secured to prevent pinching, cutting, or short circuits. Use appropriate gauge wiring for power and ground connections.
- Pengudaraan: Pasangkan amplifier in a location that allows for adequate airflow to prevent overheating.
- Tahap Kelantangan: Pendedahan yang berpanjangan kepada tahap kelantangan yang tinggi boleh menyebabkan kerosakan pendengaran.
3. Produk Lebihview
The T400X4ad is a compact 4-channel amplifier featuring proprietary Class-AD technology and Constant Power output. It delivers 100 Watts x 4 at 4-Ohm or 2-Ohm, or 200 Watts x 2 when bridged at 4-Ohm. Key features include high-level auto turn-on, CLEAN circuit input/output clip detection, and an on-board Punch EQ.

Rajah 3.1: Atas view of the T400X4ad amplifier, highlighting the input level controls, EQ, and crossover settings for both front and rear channels.
3.1 Ciri-ciri
- Reka Bentuk Casis Padat
- Class-AD Technology with Constant Power
- 4-Channel Output
- High-Level Auto Turn-On
- CLEAN Input/Output Clip Detection
- On-Board Punch EQ (+18dB boost @ 45Hz)
- 12dB/octave Butterworth Crossover
4. Persediaan dan Pemasangan
Pemasangan yang betul adalah penting untuk prestasi dan keselamatan peranti anda amplifier. Follow these steps carefully.
4.1 Lokasi Pemasangan
Choose a mounting location that provides adequate ventilation, is protected from moisture, and is secure. Avoid mounting on carpet or directly to metal surfaces without proper insulation.

Gambar 4.1: Cthample of a T400X4ad amplifier installed in a vehicle, demonstrating a secure and accessible mounting location.
4.2 Sambungan Pendawaian
Ensure all connections are tight and secure to prevent power loss or short circuits.
4.2.1 Sambungan Kuasa dan Tanah
- B+ (Power): Connect directly to the positive terminal of the vehicle's battery using an appropriate gauge power wire and an in-line fuse within 18 inches of the battery.
- GND (Tanah): Connect to a clean, bare metal chassis ground point in the vehicle. The ground wire should be the same gauge as the power wire and as short as possible.
- REM (Penghidupan Jauh): Sambungkan ke output penghidup jauh unit kepala anda. Wayar ini memberi isyarat kepada amplampu untuk menghidupkan dan mematikan dengan unit kepala.

Figure 4.2: Rear panel connections for power (B+), ground (GND), remote (REM), and speaker outputs (Front and Rear Speakers).
4.2.2 Sambungan Input
The T400X4ad supports both low-level (RCA) and high-level (speaker wire) inputs.
- Input Tahap Rendah: Sambungkan kabel RCA daripada pra-unit kepala andaamp output kepada amplifier's FRONT and REAR input jacks.
- Input Tahap Tinggi: If your head unit does not have RCA outputs, use the included high-level input harness to connect directly to your head unit's speaker outputs. The amplifier features auto turn-on when using high-level inputs.

Figure 4.3: Front panel input connections for both front and rear channels, including RCA and high-level input ports.
4.2.3 Sambungan Pembesar Suara
Sambungkan pembesar suara anda ke amplifier's speaker output terminals. Ensure correct polarity (+ to + and - to -) for each speaker. The amplifier can be configured for 4-channel stereo or 2-channel bridged operation.
- Stereo 4-Saluran: Connect one speaker to each of the four output channels.
- 2-Channel Bridged: For higher power output to two speakers (e.g., subwoofers), bridge the front channels and the rear channels. Refer to the wiring diagram on the amplifier for correct bridging connections.
5. Arahan Operasi
Setelah dipasang, laraskan amplifier settings for optimal audio performance.
5.1 Pelarasan Tahap Input
The input level (gain) controls match the amplifier's input sensitivity to the output of your head unit. This is not a volume control.
- Pusingkan amplifier's input level controls to their minimum (counter-clockwise) position.
- Set your head unit's volume to about 75% of its maximum.
- Perlahan-lahan tingkatkan amplifier's input level control until you hear distortion or the CLEAN clip indicator illuminates. Then, back off slightly until the distortion or clip indicator disappears.
5.2 Crossover Adjustment
The T400X4ad features a 12dB/octave Butterworth crossover for both front and rear channels, allowing you to filter frequencies sent to your speakers.
- Full Range (AP): Passes all frequencies to the speakers.
- High Pass (HP): Allows frequencies above the set point to pass, typically used for full-range speakers to protect them from low bass.
- Low Pass (LP): Allows frequencies below the set point to pass, typically used for subwoofers.
Adjust the frequency knob (FREQ) to the desired crossover point based on your speaker's specifications.
5.3 Punch EQ Adjustment
The on-board Punch EQ provides a bass boost at 45Hz. Use this feature to enhance bass response if desired.
- Start with the EQ control at its minimum position.
- Gradually increase the EQ level to achieve the desired bass enhancement. Avoid excessive boost, which can lead to distortion or speaker damage.
6. Penyelenggaraan
The Rockford Fosgate T400X4ad amppenghawa dingin memerlukan penyelenggaraan yang minimum.
- Pembersihan: Lap secara berkala ampLap bahagian luar penapis dengan kain yang lembut dan kering. Jangan gunakan bahan kimia yang keras atau pembersih yang kasar.
- Sambungan: Occasionally check all wiring connections to ensure they remain tight and free from corrosion.
- Pengudaraan: Memastikan bahawa ampSirip penyejuk lifier bebas daripada habuk dan serpihan untuk mengekalkan pelesapan haba yang betul.
7. Penyelesaian masalah
Jika anda mengalami masalah dengan anda amplifier, refer to the following troubleshooting guide before contacting support.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada Kuasa / AmpPemanas Tidak Menghidupkan | Blown fuse; Loose power/ground/remote wire; Faulty remote turn-on signal. | Periksa fius dalam talian dan amplifier fuses; Verify all power, ground, and remote connections; Test remote wire for 12V signal. |
| Tiada Output Audio | Input cables disconnected; Speaker wires disconnected or shorted; Amplifier in protect mode; Incorrect input level settings. | Check RCA/high-level input connections; Verify speaker wiring and check for shorts; Check amplifier status light (PWR/PROTECT); Adjust input level. |
| Bunyi Herot | Input level set too high; Speaker impedance too low; Damaged speakers; Incorrect crossover settings. | Reduce input level until distortion disappears (use CLEAN indicator); Ensure speaker impedance matches amplifier's capabilities; Inspect speakers for damage; Adjust crossover settings. |
| Amplifier Terlalu Panas | Insufficient ventilation; Speaker impedance too low; Prolonged high volume use. | Pastikan aliran udara yang mencukupi di sekitar amplifier; Verify speaker impedance; Reduce volume or allow ampliifier untuk menyejukkan. |
8. Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Nombor Model | T400X4ad |
| Saluran | 4-Saluran |
| Kuasa Output (RMS) | 100 Watts x 4 @ 4-Ohm 100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged |
| Jumlah Kuasa Keluaran | 400 Watt |
| Dimensi (L x W x H) | 27.9 x 7.6 x 15.2 Centimetres (1.6” x 4.3” x 8.3” approx.) |
| Berat Barang | 1.36 kg |
| Voltage | 12 Volt (DC) |
| Crossover | 12dB/octave Butterworth (HP/LP/AP) |
| EQ | On-board Punch EQ (+18dB boost @ 45Hz) |
| Ciri Khas | Class-AD Technology, Constant Power, High-Level Auto Turn-On, CLEAN Clip Detection |
| bahan | Electronic component material and epoxy |
| Pensijilan | CE, FCC |
9. Waranti dan Sokongan
9.1 Maklumat Waranti
The Rockford Fosgate T400X4ad ampliifier dilengkapi dengan a alat ganti 2 tahun dan waranti buruh from the date of purchase. This warranty covers defects in material and workmanship under normal use. It does not cover damage caused by improper installation, accident, misuse, abuse, neglect, unauthorized repair, or modification.
Sila simpan bukti pembelian anda untuk tuntutan waranti.
9.2 Sokongan Pelanggan
For technical assistance, warranty service, or further information, please contact Rockford Fosgate customer support or visit their official website. Contact information can typically be found on the manufacturer's webtapak atau dalam pembungkusan produk.
Manufacturer Contact Information: VAN NUYS, CA, 91406 US