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

Front View of T800-4ad Amplifier
Inside "Gut Shot" View of T800-4ad Amplifier
Side Panel View of T800-4ad Amplifier
Three-Quarter View of T800-4ad Amplifier
Front View of T800-4ad Amplifier
Inside "Gut Shot" View of T800-4ad Amplifier
Side Panel View of T800-4ad Amplifier
Three-Quarter View of T800-4ad Amplifier
Front View of T800-4ad Amplifier
Inside "Gut Shot" View of T800-4ad Amplifier
Side Panel View of T800-4ad Amplifier
Three-Quarter View of T800-4ad Amplifier

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

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.

• This model replaced by the T1000-4ad

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Discontinued
Overview Technologies Specifications Support Accessories Wiring Wizard
Overview

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.

FEATURES AT A GLANCE

  • MOSFET output stage
  • 24dB/octave crossover
  • MOSFET power supply
  • 2/4 channel input switch
  • 4 Gauge power/ground connectors
  • Audiophile grade speaker connections
  • 2-Year Warranty
Technologies
Punch EQ2

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

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MEHSA3

MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.

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Balanced Differential Inputs

Differential inputs eliminate noise picked up by signal cables.

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NOMAD

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

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Class-AD

This technology allows the amplifier to produce more power with less current draw from the vehicle's ...

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DSM

DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and ...

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Engineered In The USA

These Avatars are a personal signature from the Rockford Fosgate team member(s) who designed and engineered ...

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Constant Power

Constant Power is a patented circuit topology that provides instantaneous delivery of output power over varying ...

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CTA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your amplifier's ...

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Specifications
Cta-2006 Compliant
Number of Channels
4
Total Power
(Sum of Rated Power)
800 Watts RMS
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
Dynamic Power
(PVC/PowerCube®)
177 Watts x 4 @ 4-Ohm 0° Res
219 Watts x 4 @ 2-Ohm 0° Res
235 Watts x 4 @ 1-Ohm 0° Res
350 Watts x 2 @ 4-Ohm Bridged
410 Watts x 2 @ 2-Ohm Bridged
Bridgeable
Yes
Frequency Response
20Hz to 20kHz +/-1dB
Input Sensitivity
150 mV to 4 V
Circuit Topology Class
Class AD
Efficiency (average)
80% @ 4-Ohm
75% @ 2-Ohm
75% @ 1-Ohm
Total Harmonic Distortion (THD+Noise)
4-Ohm: <1.0%
2-Ohm: <1.0%
Signal Input
Front Channels:
1 RCA pair

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

Knowledge Base Articles

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Ask Our Experts

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.


Return Authorization Process



Diagnose First

Prior to requesting an RA, try to diagnose the failure. Many products we receive are sent back with No Trouble Found, usually due to incorrect installation. Use our RFTECH:Knowledge Base for troubleshooting assistance.



Contact Customer Support

Please call us during normal business hours at 1-800-669-9899 (option #1) and be prepared with the following information:

  • First and Last Name with complete Shipping Address
  • Product Name (T0D415)
  • Serial Number (12 or 13 digit number)
  • Failure Diagnosis (no output, no power LED, etc.)
  • Scanned copy of Original Receipt emailed to [email protected] (dealer name, purchase date, and item purchased must be legible)
  • Credit/Debit Card (if paying for out-of-warranty claims)
  • No money orders or checks.


Shipping Instructions

When shipping your product, your package MUST have the following information:

  • RA# Printed Outside of Box (as large as possible)
  • Copy of Original Receipt


Shipping Address

Ship your product (UPS or FedEx preferred) to the following:


Rockford/ AJR International
300 Regency DR
Glendale Heights, IL 60139
RA#:_______________________
Accessories
Three Quarter Beauty Shot of Remote Equalization Control for Select Amplifiers

Remote Punch EQ (2007+ Amps)

PEQ
read more...
Three Quarter Beauty Shot of Positive-Negative Battery Terminal

4 AWG or 1/0 AWG Positive-Negative Battery Terminal

RFDB1
read more...
Wiring Wizard

Available Wiring Diagrams

Please consult your amplifier owner's manual for lowest recommended impedance.



Wiring Diagram #1



Wiring Diagram #2



Wiring Diagram #3



Wiring Diagram #4



Wiring Diagram #5



Wiring Diagram #6



Wiring Diagram #7



Wiring Diagram #8



Wiring Diagram #9



Wiring Diagram #10

Speaker Polarity

Your woofer may use one of the following to identify (+/-) terminals.

Positive +

Red Post

Purple (4Ω)

Red (8Ω)

Negative -

Black Post

No Dot

No Dot

FAQ

Determining power needed for speakers

Prevent blowing your subwoofers

Temperature differences between subwoofer voice coil types

Differences between SVC and DVC subwoofers

Speaker Polarity

Your woofer may use one of the following to identify (+/-) terminals.

Positive +

Red Post

Purple (4Ω)

Red (8Ω)

Negative -

Black Post

No Dot

No Dot

FAQ

Determining power needed for speakers

Prevent blowing your subwoofers

Temperature differences between subwoofer voice coil types

Differences between SVC and DVC subwoofers

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