Rockford Fosgate T400X2AD Power Series Power Series 2-Channel 200W RMS x 2 at 4-Ohms, Class AD Ultra Compact Car Amplifier
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What's Inside?
- • 2-Channel Class AD Car Amplifier
- • 14" Input harness (4-pin Molex connector to 2 female RCAs)
- • 8" Speaker output harness (4-pin Molex connector to bare wire)
- • Amplifier Quick Setup sheet
- • Certificate of Performance Verification
- • Owner's Manual
Why Choose Rockford Fosgate T400X2AD 2-Channel Amplifier?
Big Power in a Tiny Frame
This ultra-compact 2-channel amplifier squeezes serious output into a chassis that fits almost anywhere, yet still delivers 200 watts per channel at 4 or 2 ohms, plus a solid 400 watts when bridged. It is the kind of amp you can tuck away cleanly while still running a full, powerful system without sacrificing space in your ride.
Smarter Power with Class AD Performance
Dynamic frequency switching helps maintain detail at lower levels while still pushing strong output when you crank it up. On top of that, the Constant Power system actively adjusts voltage and current with your music, giving you up to 25 percent more usable output so the bass stays strong and the highs stay crisp no matter what you’re playing.
Control, Cooling, and Clean Sound in One Package
Dual fan cooling keeps temperatures in check so performance stays stable even during long sessions, while C.L.E.A.N. technology helps you dial in perfect gain settings without guesswork or extra tools. Add in top-mounted controls for EQ, crossover, and frequency tuning plus flexible input support for both RCA and speaker-level signals, and you’ve got a compact amplifier that is easy to install, easy to tune, and built to stay reliable.
Frequently Asked Questions (FAQ)
- • Why does the amplifier have no power?
Check the fuse, battery connection, ground, and power cable. Loose terminals or a poor ground can prevent the amplifier from turning on properly.
- • Why does it keep going into protection?
Check for shorted speaker wires, incorrect impedance, overheating, or weak power connections. Make sure the speaker load is within the amplifier's limits.
- • Why does the sound cut out at high volume?
Low voltage, overheating, excessive gain, or an unsuitable speaker load can cause shutdowns. Check the power supply and amplifier settings carefully.
- • Why do I hear a whining noise?
Whining is often caused by grounding or signal interference. Check the ground connection and keep signal cables separated from power wiring.
- • Why is one channel not producing sound?
Check the RCA inputs, speaker wiring, gain controls, and source output. Swap channels to see whether the problem follows the input or speaker.
- • Why does the amplifier get very hot?
Some heat is normal, but excessive temperature may indicate poor ventilation, high output, or an incorrect load. Allow adequate airflow around the unit.
- • Can I bridge the channels for more power?
Yes, when the speaker load and wiring meet the amplifier's bridging requirements. Follow the wiring diagram and verify the minimum impedance first.
- • Why does the audio sound distorted?
Distortion can come from excessive gain, clipping, or an unsuitable speaker load. Lower the gain and check the source and amplifier settings.
- • Why does the amplifier shut off while driving?
Vibration can loosen power, ground, or speaker connections. Inspect the terminals and secure the wiring to prevent intermittent contact.
- • What should I check if it suddenly stops working?
Inspect the fuse, power, ground, speaker wiring, and signal connections. Look for loose or damaged cables and check the protection indicator.
- Maximum Power : 400 Watts
- Number of Channels : 2
- Frequency Response : 20-20000 Hz
- Built In Crossovers : Yes
- RMS Power Output : 2x200 Watts
- Amplifier Class : AD
- Fuse Rating : 60 A
Features:
- Ultra Compact High-Output 2-Channel Power Design: Engineered in a space-saving chassis measuring just 7-3/8 inches by 4-1/4 inches, delivering 200 watts per channel at 4 ohms or 2 ohms and up to 400 watts bridged for versatile system configurations.
- Advanced Class AD Amplification Technology: Utilizes Rockford Fosgate proprietary Class AD architecture with dynamic frequency switching for improved efficiency, higher resolution at low levels, and stronger overall power delivery with reduced current demand.
- Constant Power Output Optimization System: Features patented circuit design that dynamically adjusts voltage and current in response to music signals, providing up to 25 percent increased usable output for more consistent performance under load.
- Dual Fan Forced Cooling Architecture: Integrated cooling system actively draws air across internal components to maintain thermal stability, ensuring reliable performance while keeping the amplifier surface cool during extended use.
- C.L.E.A.N. Signal Calibration Technology: Built-in LED guided tuning system helps match input and output levels precisely, eliminating distortion and ensuring clean audio delivery without requiring external test equipment.
- Top Mounted Precision Control Interface: Includes adjustable input level, Punch EQ tuning, crossover mode selection, and variable frequency control ranging from 50Hz to 250Hz for detailed system tuning flexibility.
- Intelligent Protection and Status Monitoring System: Equipped with multi-color LED indicators that provide real-time feedback for power status, thermal conditions, and signal clipping to ensure safe operation.
- Flexible High Level and Low Level Input Compatibility: Supports RCA and speaker level inputs through a Molex connector system with auto turn-on capability for simplified integration into factory or aftermarket systems.
Specifications:
- RMS Power Output (Watts x Channels): 200 x 2
- Peak Power Output (Watts x Channels): 223 x 2
- Power at 2 Ohms (Watts x Channels): 200 x 2
- Bridged Power (Watts x Channels): 400 x 1
- Minimum Impedance Bridged: 4
- Minimum Impedance Unbridged: 2
- Minimum Impedance: 2
- Best Frequency Response: 20-20000 Hz
- THD at Rated RMS Power: 1%
- Signal to Noise Ratio: 90 dB
- Input Voltage: 14.4v
- Amplifier Class: A/D
- Low-Pass Crossover Frequency: 50-250 Hz
- Low-Pass Slope (dB/octave): 12 dB/octave
- High-Pass Crossover Frequency: 50-250 Hz
- High-Pass Slope (dB/octave): 12 dB/octave
- Bass Boost: 0-18 dB
- Bass Boost Frequency: 45 Hz
- Fan Cooled: Yes
- Fuse Rating: 60
- Speaker Level Inputs: Yes
- Preamp Outputs: No
- Width (inches): 7
- Height (inches): 1-5/8
- Depth (inches): 4-1/4
- UPC: 780687342371
- Weight: 3
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
