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Deal.ai › Power Acoustik › 4 Channel Car Amplifiers
Power Acoustik
Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp

Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp

5(2 ratings)

Best price now

$88.99at WalmartChecked Nov 9

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Price facts

  • Last seen at $88.99 at Walmart on Nov 9.

Our take on the Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp

The Power Acoustik OD41800 is a four-channel Class A/B car amplifier rated at 900W RMS and 1800W max. It runs full-range speakers or bridged channels for subwoofers, with adjustable crossovers, gain controls and a MOSFET power supply. Built-in protection covers overheating, overload and electrical faults. It suits budget-minded drivers powering a full front-and-rear speaker setup or a small sub stage. Against pricier Class D four-channels it runs hotter and draws more current, but Class A/B sound is the trade-off many buyers accept at this level.

Best forPowering front and rear speakers from one ampBudget four-channel system buildsBridging two channels for a subwooferDrivers who want onboard crossover tuning
Pros
  • Four channels with bridging for extra output
  • Full-range Class A/B design
  • Adjustable crossovers and gain settings
  • MOSFET power supply for stable delivery
  • Protection against overheating, overload and faults
Cons
  • Class A/B runs hotter and is less efficient than Class D
  • 900W RMS is split across four channels, so per-channel power is modest
  • No DSP or digital tuning
  • Power figures are peak-oriented and need care when matching speakers

Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp prices at every store

  • WalmartNew

    In stockSold by epsilonelectronicsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $88.99Free shippingChecked Nov 9
    Visit Walmart

About the Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp

The Power Acoustik OD41800 is a 4-channel Class A/B car amplifier. It is rated at 900 watts RMS and 1800 watts maximum output. It is full range, so it reproduces highs, mids and lows, and it can power full-range speakers and select subwoofer setups.

The Class A/B design balances efficiency and sound quality. Use it to power front and rear speakers, or bridge channels for additional output. A MOSFET power supply provides stable power delivery.

Adjustable crossovers and gain settings let you tune the system. Built-in protection circuits guard against overheating, overload and electrical faults.

Channels
4
Amplifier class
Class A/B
Power output
900 W RMS, 1800 W max
Range
Full range
Power supply
MOSFET
Controls
Adjustable crossovers and gain
Protection
Overheating, overload and electrical fault protection
Color
Black

Specifications

color
BlackSource
size
One SizeSource

Questions and answers

Is the 1800W rating real power?
1800W is the maximum rating. The RMS figure is 900W, and that is split across four channels, so each channel gets a fraction of it. Match speakers to the RMS rating, not the peak.
Can I bridge it to run a subwoofer?
Yes. Bridging pairs of channels combines their output for a subwoofer or a single driver that needs more power. Check the bridged impedance the amp is stable at before wiring.
Does it have crossovers?
Yes. It has adjustable crossovers and gain settings so you can tune front, rear and sub channels separately.
How does it compare with a Class D amp?
Class A/B generally runs hotter and draws more current than Class D, but it is a common choice for full-range sound on a budget. Class D is the better pick if efficiency and compact size matter most.
What comes in the box?
The amplifier itself with its mounting hardware and owner documentation. Wiring kits and cables are usually sold separately.
Where is the Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp cheapest?
At Walmart, for $88.99, as of our latest check.
What do buyers say about the Power Acoustik OD41800 4-Channel Class A/B Car Amplifier 900W RMS / 1800W MAX, Full Range Multi-Channel Amp?
Rated 5 out of 5 from 2 ratings.

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