T800-4ad 800 Watt Class-AD Full-Range 4-Channel Amplifier

The Power T800-4ad is a 4-channel amplifier that combines the sound quality characteristics of a Class-A design with the efficiency of a Class-D in one remarkable package, offering high fidelity in a full-range configuration.

  • 2/4 channel input switch
  • 24dB/octave crossover
  • 4 Gauge power/ground connectors
  • Audiophile grade speaker connections
  • MOSFET power supply
  • MOSFET output stage
  • RCA pass-thru outputs
  • 2 Years Standard Warranty warranty info
  • Get a 1 Year Extended Warranty extended warranty info
Class-AD
Constant Power
Punch EQ2
MEHSA<sup>3</sup>
NOMAD

T800-4ad

The T800-4ad combines sound quality characteristics of Class-A designs with efficiency of a Class-D in one remarkable package. Superior sound quality is possible through the implementation dynamic switching frequency control. The addition of Constant Power circuitry produces optimized output at a range of impedances. Rockford Fosgate created Class-bd for brute power to run low frequency subwoofers, and now Class-ad offers high fidelity in a full-range configuration.


CEA-2006 Compliant

CEA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These...
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Class-AD

Class-AD

This technology allows the amplifier to produce more power with less current draw from the...
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Constant Power

Constant Power

Constant Power is a patented circuit topology that provides instantaneous delivery of output power...
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Punch EQ2

Punch EQ2

Onboard equalizer with up to +18dB @ 45Hz and/or up to +12dB boost at 12kHz.
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DSM

DSM

DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from...
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MEHSA<sup>3</sup>

MEHSA3

MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs...
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NOMAD

NOMAD

NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and...
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Balanced Differential Inputs

Balanced Differential Inputs

Differential inputs eliminate noise picked up by signal cables.
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Rockford Fosgate Avatar

Rockford Fosgate Avatar

These Avatars are a personal signature from the Rockford Fosgate team member who designed and...
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CEA-2006 Compliant:
Number of Channels: 4
Rated Power
(RMS Continuous Power):
150 Watts x 4 @ 4-Ohm
150 Watts x 4 @ 2-Ohm
200 Watts x 4 @ 1-Ohm
300 Watts x 2 @ 4-Ohm Bridged
400 Watts x 2 @ 2-Ohm Bridged
Total Power
(Sum of Rated Power):
800 Watts RMS
Dynamic Power
(PVC/PowerCube® Measurement):
Front Channels:
TBA Watts x 2 @ 4-Ohms 0° Res
TBA Watts x 2 @ 2-Ohms 0° Res
TBA Watts x 2 @ 1-Ohm 0° Res

Rear Channels:
TBA Watts x 2 @ 4-Ohms 0° Res
TBA Watts x 2 @ 2-Ohms 0° Res
TBA Watts x 2 @ 1-Ohm 0° Res
Bridgeable: Yes
Frequency Response: 20Hz to 20kHz +/-1dB
Efficiency (average): 80% @ 4-Ohm
75% @ 2-Ohm
75% @ 1-Ohm
Total Harmonic Distortion (THD+Noise): 4-Ohm: <1.0%
2-Ohm: <1.0%
Crossover Controls: Front Channels:
High-Pass (HP): 50Hz-500Hz @ 24dB/octave Butterworth
Low-Pass (LP): 50Hz-500Hz @ 24dB/octave Butterworth

Rear Channels:
High-Pass (HP): 50Hz-500Hz @ 24dB/octave Butterworth
Low-Pass (LP): 50Hz-500Hz @ 24dB/octave Butterworth
Tone Controls: Front Channels:
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz

Rear Channels:
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Function depends upon crossover setting (LP/AP/HP)
Input Sensitivity: 150 mV to 4 V
Signal Input: Front Channels:
1 RCA pair

Rear Channels:
1 RCA pair
Signal Output: n/a
Power Input Connector: Block
Power Wire Gauge: 4 AWG
Speaker Output Connector: Block
Speaker Wire Gauge: 8 AWG to 16 AWG
Heat Sink Type: Cast aluminum
Cooling: Convection
Remote Controls: Optional Remote PEQ
(overrides rear channel built-in Punch EQ)
Visual Indicators: Power (Blue LED)
Thermal (Red LED)
Protect (Yellow LED)
Circuit Topology Class: Class-A/D
Operating Voltage: 9 - 16 VDC
Recommended Fuse
(not included):
100 A
Max. Current Draw (13.8V Sinewave): 80 A
Average Current Draw (13.8V Music): 40 A
Suggested Alternator: 75 A
Shipping Weight: 13.2 Lbs. (5.98 Kg.)
Dimensions (HxWxL): 2.14 x 8.14 x 13.66 (in)
5.42 x 20.68 x 34.69 (cm)
Dimensional Diagram:

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Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.

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1-Year Extended Amplifier Warranty Icon Get a 1-Year extended amplifier warranty when using a matching Rockford Fosgate installation kit. We want you to get the maximum performance and reliability from your Rockford Fosgate amplifier. We're so certain using the right cables make a difference, we'll give you and additional 1-Year amplifier warranty when using a matching installation kit! Purchase a Rockford Fosgate Punch or Power amplifier. Add the correct amplifier installation kit. Get an additional 1 year amplifier warranty FREE!
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