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Sundown Audio 5-Channel 900-Watt 1-Ohm Class-A/B Amplifier SAE-900.5-V4

SKU SD-SAE-900.5-V4
Save 20% Save 20%
Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $399.99
$399.99 - $399.99
Current price $399.99

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  • Versatile Configuration - Class A/B for multi channels, ensuring flexibility and high-quality audio reproduction.
  • Advanced Cooling - Redesigned chassis and heatsink with 33% more aluminum for efficient heat dissipation during heavy loads.
  • Compact Design - Utilizes the latest Half Bridge technology, providing a small footprint without compromising signal strength.
  • High Fidelity Performance - Delivers 300 Watts RMS at 2 Ohm to each channel, offering clean and powerful signal power for your car audio system.
  • Optimized Filtering - 12dB/Octave variable subsonic, high pass, and low pass filters, ensuring precise tuning and audio customization.

Sundown Audio Class-A/B 1-Ohm 900-Watt 5-Channel Amplifier SAE-900.5-V4

This Listing Includes:

  • (1) Digital Class-D Mono Block Amplifier

Introducing the Sundown Audio SAE-900.5-V4 5 Channel Class A/B Amplifier, a response to customer demand for a budget-friendly Korean-style amplifier. With a focus on versatility and high fidelity, the SAEv4 series features Class A/B for multi channels, ensuring optimal audio reproduction. The upgraded chassis and heatsink, with 33% more aluminum, enhance heat dissipation during heavy loads, while the Half Bridge technology keeps the amplifier compact without sacrificing signal strength. Boasting 900 Watts RMS at 1 ohm, this amplifier delivers a clean and powerful audio experience. For those seeking a balance between affordability and performance, the SAEv4 series is the perfect choice.


  • High Fidelity Class A/B Multi-Channel Design

  • 12dB/Octave-Variable Subsonic Filter

  • 12dB/Octave-Variable High Pass Filter

  • 12dB/Octave-Variable Low Pass Filter

  • Clipping Indicator

  • 4 Way Protection Circuit (Thermal,

  • Voltage Speaker short and DC Offset)

  • Optional Wired Remote Control with Clipping Indicator


  • Input Sensitivity 6V Max

  • 500 x 1@ 1 ohms RMS (Channel 5)

  • 120 x 4 / 325 x 1 @ 2 ohms RMS

  • 80 x 4 / 225 x 1 @ 4 ohms RMS

  • Variable Low Pass Filter: 540Hz - 5kHz (Channel 5)

  • Variable High Pass Filter: 40HZ - 5kHZ (Channel 1 - Channel 4)

  • Variable High Pass Filter: 10Hz - 40Hz (Channel 5 Subsonic)

  • -12dB/8 Variable Crossover Slope (LPF/HPF)

  • Signal / Noise Ratio: 92DB

  • Operation Voltage: DC 10.5V - 15.5V Power Input


  • Length: 17.5"

  • Width: 6.5"

  • Height: 2.75"

Payment Information


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All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

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payment please confirm your address has been verified with PayPal. Once
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made using an unverified PayPal address will be refunded and order will
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Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


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please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

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If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.

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