Is the AC4000.1D really 4000 watts?

That is the max power rating. Continuous RMS output is much lower, so match it to subwoofers by RMS, not the peak number.

What subwoofer impedance can it drive?

It is 1-ohm stable, so it handles subwoofer loads wired down to 1 ohm. Check your sub's final impedance before wiring.

Can I run two of these together?

Yes. Two AC4000.1D amps can be strapped to double the output into a single load.

Does it come with a bass knob?

Yes, a wired remote subwoofer control is included for adjusting bass level from the driver's seat.

What tuning features does it have?

It has a variable low-pass crossover, bass boost and a subsonic filter for shaping subwoofer output.

Will it fit in a small space?

The slim Class D chassis is designed for tight install spots, but measure your mounting area first.

Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier

Best price now

$128.99at WalmartChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Walmart

Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier

Best price now

$128.99at WalmartChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $128.99 at Walmart on Nov 9.

Our take on the Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier

The Planet Audio AC4000.1D is a Class D monoblock car amplifier rated at 4000 watts max and stable down to 1 ohm. It carries a MOSFET power supply, variable low-pass crossover, bass boost, subsonic filter and a wired remote subwoofer control, and two units can be strapped for double the output. It suits bass-focused builds driving one or more subwoofers on a budget. Against pricier monoblocks it gives up clean RMS headroom and build refinement, and owners report the 4000 figure is peak rather than continuous power.

Best forBudget subwoofer buildsDrivers running subs at 1 ohmBass-heavy daily systemsTwo-amp strapped setups

Pros

Class D design runs cooler and draws less current than Class AB
1-ohm stable for high-output subwoofer wiring
Variable low-pass, bass boost and subsonic filter on board
Wired remote subwoofer level control included
Strap two units together for more output
Slim chassis fits tight install spots

Cons

4000 watts is max power, not RMS
Clean output is modest for the claimed rating
Budget internals and terminals feel basic
Needs stout wiring and electrical upgrades to hold up

Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier prices at every store

WalmartNew
In stockSold by Speece Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$128.99Free shippingChecked Nov 9
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What reviewers say

4.3 / 524 ratings

Owners rate it well as a value bass amp, but several note the real continuous power is far below the headline 4000 watts and that it needs solid wiring to behave.

What people mention

Power ratingMixedBuyers say the 4000-watt figure is peak and the usable continuous power is much lower.
Bass outputPraisedOwners report strong, loud subwoofer bass for a budget monoblock.
HeatPraisedThe Class D design is said to run cooler than older Class AB amplifiers.
ReliabilityCriticisedSome owners report the amp going into protection when pushed hard.
BuildCriticisedTerminals and connectors are described as basic and flimsy.

About the Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier

The Planet Audio Anarchy AC4000.1D is a Class D monoblock car amplifier with 4000 watts of maximum power. It is 1 ohm stable and uses a MOSFET power supply. The slim design lets it fit in a range of locations in a vehicle.

Sound controls include a variable low pass crossover, bass boost, a subsonic filter and remote subwoofer control. Two AC4000.1D amplifiers can be strapped together for double the performance.

Series: Anarchy
Model: AC4000.1D
Type: Class D monoblock car amplifier
Max power: 4000 watts
Impedance: 1 ohm stable
Power supply: MOSFET
Controls: Variable low pass crossover, bass boost, subsonic filter, remote subwoofer control
Bridging: Can be strapped to a second AC4000.1D
Dimensions: 4.63 x 19.38 x 12.0
Color: Black
Condition: New

Specifications

finish: NewSource
color: BlackSource
size: 4.63 x 19.38 x 12.0Source

Questions and answers

Is the AC4000.1D really 4000 watts?: That is the max power rating. Continuous RMS output is much lower, so match it to subwoofers by RMS, not the peak number.
What subwoofer impedance can it drive?: It is 1-ohm stable, so it handles subwoofer loads wired down to 1 ohm. Check your sub's final impedance before wiring.
Can I run two of these together?: Yes. Two AC4000.1D amps can be strapped to double the output into a single load.
Does it come with a bass knob?: Yes, a wired remote subwoofer control is included for adjusting bass level from the driver's seat.
What tuning features does it have?: It has a variable low-pass crossover, bass boost and a subsonic filter for shaping subwoofer output.
Will it fit in a small space?: The slim Class D chassis is designed for tight install spots, but measure your mounting area first.
Where is the Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier cheapest?: At Walmart, for $128.99, as of our latest check.
What do buyers say about the Planet Audio AC4000.1D 4000 Output Class D Monoblock 1 Ohm Car Amplifier?: Rated 4.3 out of 5 from 24 ratings.