Rockford Fosgate T1000-4AD Power Series 4 Channel 250W RMS x 4 at 4-Ohms, Class AD Constant Power Car Amplifier
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What's Inside?
- • 4-Channel Amplifier
- • (4) 1-1/2" Self-tapping screws
- • Amplifier Performance Verification Certificate
- • Owner's Manual
Why Choose Rockford Fosgate T1000-4AD 4-Channel Amplifier?
Pure Power Meets Everyday Driving Control
Its Hybrid Class A/D design blends the smooth, detailed character of Class A with the efficiency of Class D, so you get powerful output without stressing your vehicle’s electrical system. With Constant Power technology, it delivers a consistent 250W x 4 across multiple impedances or 500W bridged when you need more impact, giving you flexible performance no matter how your system is wired.
Clean Signal, Strong Output, Zero Noise
The Differential Input Noise Rejection system filters out unwanted noise so only the pure audio signal gets through, keeping everything tight and accurate even in complex installs. Inside, DSM precision engineering and advanced surface mount construction help reduce interference and improve efficiency, while the NOMAD protection system constantly monitors temperature, voltage, and load so your system stays safe without killing your sound when things get loud.
Built for Real-World Installers and Serious Tuners
The T1000-4AD is also made for people who actually want control over their sound system. Independent gain controls, fully adjustable active crossovers, and adaptive Punch EQ give you the tools to shape everything from tight mids to deep bass exactly how you like it. Add in heavy-duty power terminals, corrosion-resistant RCA connections with pass-through output for system expansion, and optional remote PEQ tuning, and you get an amplifier that is not just powerful but also incredibly flexible for real-world car audio builds.
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 its 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 through the speakers?
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 it get very hot during use?
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 use it with factory speakers?
Yes, if the speakers' impedance and power handling are compatible. Set the gain carefully and avoid excessive output that could damage them.
- • 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 one pair of speakers sound quieter?
Check the balance, RCA inputs, gain settings, and speaker wiring. Swap inputs to determine whether the problem follows the channel or speakers.
- • 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 : 1000 Watts
- Number of Channels : 4
- Frequency Response : 20-20000 Hz
- Amplifier Class : A/D
- Fuse Rating : 150 A
Features:
- Hybrid Class A/D Amplification Efficiency: Combines Class A sound quality with Class D efficiency through dynamic switching frequency control, delivering high output power with reduced current draw on the vehicle electrical system.
- Constant Power Output Stability: Maintains consistent RMS power at 250W x 4 across 4Ω, 2Ω, and 1Ω loads, with 500W x 2 bridged output at 4Ω or 2Ω for flexible high-performance system configurations.
- Differential Input Noise Rejection: Advanced differential input circuitry cancels common-mode noise from signal paths, ensuring only clean, accurate audio signals reach the amplifier stage.
- Advanced Cast Aluminum Thermal Design: High-efficiency cast aluminum heatsink improves heat dissipation by up to 30% compared to traditional extrusion designs for reliable thermal control.
- Dynamic Thermal Management System: Evenly distributes heat across the entire heatsink surface to maintain stable operating temperatures under continuous high-power demand.
- MEHSA³ Heat Transfer Technology: Multi-layer insulated structure maximizes MOSFET thermal transfer efficiency, rapidly spreading heat for improved stability and long-term reliability.
- NOMAD Intelligent Protection System: Real-time analog monitoring evaluates temperature, voltage, current, and impedance to protect the amplifier while preserving full audio output when possible.
- DSM Precision Surface Mount Engineering: High-accuracy robotic component placement reduces signal interference, improves efficiency, and lowers overall operating temperature.
- Integrated Multi-Status LED Monitoring: Built-in power, thermal, and protection indicators provide instant system status feedback with automatic shutdown during fault conditions.
- Independent Gain Control Staging: Front and rear gain controls with wide 150mV to 5V adjustment range allow precise signal matching for optimized system tuning.
- Fully Adjustable Active Crossovers: Independent front and rear crossovers with selectable high-pass, low-pass, or full-range modes and adjustable 50Hz to 500Hz frequency range at 24dB/octave slope.
- Adaptive Punch EQ Enhancement: Dedicated EQ controls deliver up to 18dB bass boost or 12dB treble enhancement depending on crossover configuration for tailored sound shaping.
- Flexible 2/4-Channel Operation Mode: Switchable input architecture enables seamless transition between 4-channel and 2-channel input setups while maintaining full output capability.
- Heavy-Duty Power Connectivity: Nickel-plated C-clamp terminals support up to 4-gauge wiring with external 150-amp fuse requirement for stable and secure power delivery.
- High-Quality Signal and Expansion Outputs: RCA inputs feature corrosion-resistant plating, while RCA pass-thru outputs allow easy daisy-chaining of additional amplifiers.
- Remote Punch EQ Control Integration: RJ-45 connection supports optional wired PEQ controller, enabling remote tuning with automatic override of onboard rear EQ controls when connected.
Specifications:
- RMS Power Output (Watts x Channels): 250 x 4
- Peak Power Output (Watts x Channels): N/A
- Power at 2 Ohms (Watts x Channels): 250 x 4
- Bridged Power (Watts x Channels): 500 x 2
- Minimum Impedance Bridged: 2
- Minimum Impedance Unbridged: 1
- Minimum Impedance: 1
- Best Frequency Response: 20-20k Hz
- THD at Rated RMS Power: 1%
- Signal to Noise Ratio: 75 dB
- Input Voltage: 14.4v
- Amplifier Class: A/D
- Low-Pass Crossover Frequency: 50-500 Hz
- Low-Pass Slope (dB/octave): 24 dB/oct
- High-Pass Crossover Frequency: 50-500 Hz
- High-Pass Slope (dB/octave): 24 dB/oct
- Bass Boost: 0-18 dB
- Bass Boost Frequency: 45 Hz
- Fan Cooled: No
- Fuse Rating: 150
- Speaker Level Inputs: No
- Preamp Outputs: 2
- Width (inches): 14-7/8
- Height (inches): 2-1/4
- Depth (inches): 9-1/8
- Parts Warranty: 2 Years
- Labor Warranty: 2 Years
- UPC: 780687329976
- Weight: 14
- 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.
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Great Unit, hooked up 2 pairs of Rocford Fosgate speakers (front and back). Solid and heavy unit. Not cheap but delivers amazing sound. One warning...make sure the speakers you hook up can handle the power from this Beast. Or you will be buying new speakers.
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Good amp
