Don't let its size fool you. This all-MOSFET amp packs enough power to run one 2-Ohm DVC or two 4-Ohm DVC subwoofers with ease, and its dual function EQ can tune-in any pair of high frequency component speakers to deliver premium sound quality.
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Rockford Fosgate Power Series Amplifiers Power > Size. These compact amps deliver the same gut wrenching power as its big brother, but their chassis designs are up to 40% smaller. DTM (Dynamic Thermal Management) allows efficient heat transfer that minimizes physical size and enables installs under seats and other compact areas when abundant power is required.
- 24dB/octave crossover
- 4 Gauge power/ground terminals
- Audiophile grade speaker connections
- MOSFET output stage
- MOSFET power supply
- RCA pass-thru
Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.
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 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 (Maximum Efficiency Heat Sink Application--gen. 3) reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.
NOMAD (Non Multiplying Advanced Decision) is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.
In the early 70's, 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 Rockford's commitment to being Designed and Engineered in the U.S.A.
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 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: ||2 |
|Rated Power: ||120W x 2 @ 4-Ohms RMS |
200W x 2 @ 2-Ohms RMS
400W x 1 @ 4-Ohms bridged RMS
2-Ohms x 1 bridged Stable
|Total Power: ||400 Watts |
|Dynamic Power: ||145 Watts x 2 @ 4-Ohms 0 degrees Res |
243 Watts x 2 @ 2-Ohms 0 degrees Res
|Bridgeable: ||Yes |
|Efficiency (average): ||76% @ 4-Ohm |
71% @ 2-Ohm
|Crossover Controls: ||High-Pass (HP): 50-500Hz 24dB/octave Butterworth |
Low-Pass (LP): 50-500Hz 24dB/octave Butterworth
|Tone Controls: ||Treble: 0dB to +12dB @ 12kHz |
Bass: 0dB to +18dB @ 45Hz
|Signal Input: ||Low level: 1 RCA pair |
|Signal Output: ||Low level: 1 RCA pair |
|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 |
|Circuit Topology Class: ||Class A/B |
|Frequency Response: ||20Hz to 20kHz +/- 1dB |
|Shipping Weight: ||10.29 Lbs. (4.66 Kg.) |
|Dimensions (HxWxL): ||2.14 x 8.14 x 11.41 (in) |
5.42 x 20.68 x 28.97 (cm)
Thirty Years of Rockford Fosgate
Rockford Fosgate products have been designed and engineered in Tempe, Arizona since the beginning. Rockford's 30 year reputation is grounded in engineering and manufacturing some of the finest audio products in the world. The company's no-compromise approach has yielded patented iconic products such as the Punch EQ, Punch 45 amplifier and the 3Sixty integrated signal processor. Today, Rockford's new products push the performance envelope even further. Each new product is a step forward--they sound bigger, they play louder, and run longer. Rockford never settles for "good enough."
The 2010 product line represents the company's core philosophy. Rockfords new amplifiers, speakers and subwoofers have raised the bar on the competition.
What's in the Box
Rockford Fosgate Power T400-2 400 Watt Stereo Amplifier, Mounting Hardware, User's Manual
On a Tighter Budget?
For those seeking a more affordable stereo amplification solution, Rockford offers the Punch Series P400-2
and the Prime Series R150-2
, and the Prime Series R1S412
Power Series 2-Channel Amplifiers
Rockford Fosgate offers a 600-watt model in addition to this 400-watt model.