T400X4ad
Ultra-compact high-grade 4ch amplifier with a Class AD circuit and CONSTANT POWER, delivering stable 100W×4 drive even with a 2Ω load.
【T400X4ad】Rockford Fosgate Power Series Overview
This is a small, high-grade 4-channel power amplifier that fully leverages Power Series technology. It features a Class AD amplification circuit that combines the sound quality of Class A with the efficiency of Class D, delivering 100W×4 (4Ω/2Ω) from an ultra-compact 211×108×41mm body. With the patented CONSTANT POWER technology, which detects impedance variations and adjusts output accordingly, it provides stable driving capability even in real-world driving conditions.
Key Features
- Class AD amplification circuit that combines the sound quality of Class A and the efficiency of Class D
- Patented technology “CONSTANT POWER” that maintains output even when the load varies
- Patented technology “C.L.E.A.N.” that helps with level matching using LED indicators
- Forced cooling with dual vents + a small fan “3-Stage Airflow”
- Supports 200W×2 (4Ω) via bridge connection, with high-level input equipped
If you would like installation, please tell us the vehicle make, model, and year.
| RMS Power | 100W x 4 (4 ohm) / 100W x 4 (2 ohm) / 200W x 2 (4 ohm bridged) |
| Channels | 4ch (4/3/2ch) |
| Amplifier Class | Class AD |
| Frequency Response | 20Hz-20kHz (+/-1.0dB) |
| Crossover | High-pass/Low-pass 50Hz-250Hz (-12dB/oct) |
| Dimensions | 211 x 108 x 41mm (W x D x H) |
| Recommended Fuse | 60A |