ROCKFORD T400-4 Rockford 4CH Amplifier
The T400-4 amplifier is perfect for front/rear fading stereo systems or when dedicated amplification is required between front stage speakers and rear subwoofer(s). Thanks to the Dynamic Thermal Management, the small chassis design ensures it can be installed in any location--like under front seats.
400 Watt 4-Channel Amplifier.
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Perfect for front/rear fading stereo systems or when dedicated amplification is required between front stage speakers and rear subwoofer(s).
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Small chassis designs with serious power.
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CEA-2006
Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifiers output power ratings are REAL POWER numbers, not inflated marketing ratings.
Differential Inputs
Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts the voltage common to both conductors (noise) resulting in only the clean signal. This allows only clean signal to enter the amplifier.
DSM
DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.
Dynamic Thermal Management
Heat is often inefficiently dissipated across a heatsink causing "hot spots". Rockford Fosgate engineers have developed an award winning cooling design called DTM. This patent pending design seamlessly manages the output of power supply temperatures, while evenly distributing the excess heat across the entire amplifier.
MEHSA3
MEHSA3 (Maximum Efficiency Heat Sink Application--gen. 3) reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.
NOMAD
NOMAD (Non Multiplying Advanced Decision) is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.
Punch EQ2
In the early 70s, Jim Fosgate studied the acoustical properties of automobiles. Utilizing a real-time analyzer and pink noise, he would graph out the acoustical characteristics of each car he tested. Jim discovered three problems that were common to all cars: a midbass hump between 100-275Hz, a steep roll-off of high frequencies from 2kHz up to 20kHz, and reduced bass response below 50Hz.
The Punch EQ on-board equalization circuit helps correct for these acoustical deficiencies in the listening environment. When set to Low-Pass(LP) operation, it becomes a variable Bass Boost. When set to High-Pass (HP) operation, it acts as a variable Mid-Bass and Treble Boost. When set to All Pass (AP) operation, both Bass and Treble frequencies are boosted.
Rockford Fosgate Avatar
These Avatars are a personal signature from the Rockford Fosgate team member who designed and engineered this fanatic product. This statement illustrates Rockfords commitment to being Designed and Engineered in the U.S.A.
TO-247 MOSFETs
Rockford Fosgate amps use custom TO-247 MOSFETs. These have 60% more metal tab area for more power capacity, lower impedance and improved heat dissipation over traditional TO-220 MOSFETs found in competitor amps.
TRANS·ana
Trans·ana (TRANS conductance Active Nodal Amplifier) simplifies the signal path of the amplifier allowing the signal to travel through the amplifier at a lower voltage. The result is greater reliability and exceptional sound quality.
Number of Channels: 4 Rated Power: 60W x 4 @ 4-Ohms RMS
100W x 4 @ 2-Ohms RMS
200W x 2 @ 4-Ohms bridged RMS
2-Ohms x 2 bridged Stable Total Power: 400 Watts Dynamic Power: Front Channels
90 Watts x 2 @ 4-Ohms 0 degrees Res
154 Watts x 2 @ 2-Ohms 0 degrees Res
Rear Channels
90 Watts x 2 @ 4-Ohms 0 degrees Res
154 Watts x 2 @ 2-Ohms 0 degrees Res Bridgeable: Yes Efficiency (average): 69% @ 4-Ohm
68% @ 2-Ohm Crossover Controls: Front High-Pass (HP): 50-500Hz 24dB/octave Butterworth
Front Low-Pass (LP): 50-500Hz 24dB/octave Butterworth
Rear High-Pass (HP): 50-500Hz 24dB/octave Butterworth
Rear Low-Pass (LP): 50-500Hz 24dB/octave Butterworth Tone Controls: Front Channels - Punch EQ
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Rear Channels - Punch EQ
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz Signal Input: Front Low level: 1 RCA pair
Rear Low level: 1 RCA pair Signal Output: n/a Power Input Connector: Block Power Wire Gauge: 4 AWG Speaker Output Connector: Screw terminal barrier strip Speaker Wire Gauge: 8 AWG to 18 AWG Heat Sink Type: Cast aluminum Cooling: Convection Remote Controls: Optional Remote Punch EQ (overrides built-in Punch EQ) Visual Indicators: Power
Thermal
Protect Circuit Topology Class: Class A/B Frequency Response: 20Hz to 20kHz +/- 1dB Shipping Weight: 11.90 Lbs. (5.39 Kg.) Dimensions (HxWxL): 2.14 x 8.14 x 13.66 (in)
5.42 x 20.68 x 34.69 (cm)
The 2010 product line represents the companys core philosophy. Rockfords new amplifiers, speakers and subwoofers have raised the bar on the competition.
Rockford Fosgate Power T600-4 600 watt multi channel amplifier Rockford Fosgate Power T400-4 400 watt multi channel amplifier