Rockford Fosgate T1000-4ad Power 1000W 4-Channel Amp
Class-ad Constant Power four-channel car amplifier
$1,099.99
Overview
Drive a full front and rear stage with the Rockford Fosgate T1000-4ad Power Series Class-ad amplifier. Continuous power is 250 watts RMS x 4 at 4 ohms, 2 ohms, or 1 ohm, and 500 watts x 2 when bridged. Constant Power topology holds that rating as impedance drops, with 24 dB/octave crossovers and front/rear Punch EQ. A 150 Amp fuse is required and sold separately.
Product details
1000 watts of Constant Power across four channels
T1000-4ad is built for high-output multi-speaker systems that still need flexible filtering. Rockford rates it 250 W x 4 at 4Ω, 2Ω, and 1Ω, plus 500 W x 2 bridged at 4Ω or 2Ω. Class-ad Constant Power is designed to hold continuous output as the load impedance falls, so dual-coil or multi-driver stages stay fed without collapsing into a lower rating at 2 ohms or 1 ohm.

Steep front and rear filters
Front and rear channels each get high-pass and low-pass crossovers from 50–500 Hz at 24 dB/octave Butterworth. Independent treble and bass tone controls (up to +12 dB at 12 kHz and +18 dB at 45 Hz) track the crossover mode so you can tune each stage. A 2/4-channel input switch and RCA pass-thru simplify signal routing when you add another amplifier for bass.

Electrical and chassis
Plan on 4 AWG power cable and a 150 Amp fuse (not included). Average music current draw is 60 A. An optional remote PEQ overrides the rear-channel built-in Punch EQ when installed. Dimensions are 2.14 x 8.14 x 14.91 inches with convection cooling on the Power Series heat sink.
Key features
- Class-ad Constant Power: 250 W x 4 @ 4Ω/2Ω/1Ω; 500 W x 2 bridged
- Front/rear high-pass and low-pass 50–500 Hz at 24 dB/octave
- Independent Punch EQ / tone controls on front and rear
- 2/4-channel input switch with RCA pass-thru
- Optional remote PEQ ready (overrides rear Punch EQ)
- 4 AWG power block; recommended fuse 150 A (not included)
- Dimensions: 2.14" x 8.14" x 14.91"
Specifications
| Weight | 14.45 lbs |
|---|---|
| Dimensions | 14.91 × 8.14 × 2.14 in |
| Brand | Rockford Fosgate |
| Model | T1000-4ad |
| SKU | T10004AD |
| Product type | Amplifier |
| Total Power (Sum of Rated Power) | 1000 Watts RMS |
| Rated Power (RMS Continuous Power) | 250 Watts x 4 @ 4-Ohm 250 Watts x 4 @ 2-Ohm 250 Watts x 4 @ 1-Ohm 500 Watts x 2 @ 4-Ohm Bridged 500 Watts x 2 @ 2-Ohm Bridged |
| Dynamic Power (PVC/PowerCube®) | 270 Watts x 4 @ 4-Ohm 0° Res 327 Watts x 4 @ 2-Ohm 0° Res 365 Watts x 4 @ 1-Ohm 0° Res 619 Watts x 2 @ 4-Ohm Bridged 654 Watts x 2 @ 2-Ohm Bridged |
| Bridgeable | Yes |
| Frequency Response | 20Hz to 20kHz +/-1dB |
| Input Sensitivity | 150 mV to 5 V |
| Circuit Topology Class | Class AD |
| Efficiency (average) | 84.1% @ 4-Ohm 81.6% @ 2-Ohm 81% @ 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 Input Switch: 2CH / 4CH |
| Signal Output | 1 RCA pair |
| 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 |
| Operating Voltage | 9 – 16 VDC |
| Recommended Fuse (not included) | 150 A |
| Average Current Draw (13.8V Music) | 60 A |
| Max. Current Draw (13.8V Sinewave) | 120 A |
| Suggested Alternator | 75 A |
| Dimensions (H x W x D) | 2.14 x 8.14 x 14.91 (in) 5.42 x 20.68 x 37.86 (cm) |
| Shipping Weight | 14.45 Lbs. (6.55 Kg.) |
| Channels | 4 channel |
Important notes
- Amplifier only. Power kit, RCA cables, speaker wire, and the 150 Amp fuse are sold separately.
- Optional remote PEQ is sold separately and overrides the rear built-in Punch EQ.
- Use 4 AWG power/ground cable matched to the amp’s current draw.
What's in the box
- Rockford Fosgate T1000-4ad amplifier





