Sundown Audio SAEv4-100.4 4x100W 4-Channel Amplifier SD-SAE-100.4-V4 — Big Jeff Audio Dealer Platform
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Welcome To The Dealer Platform


  • Introducing the SAEv4 series from Sundown Audio, a budget-friendly Korean-style amplifier delivering high-fidelity sound.
  • Features an all-new chassis and heatsink with 33% more aluminum for enhanced heat dissipation during heavy loads.
  • Class A/B design for multi-channels and Class D for mono channels, offering a balance of size, power, and signal purity.
  • Equipped with a range of features including variable subsonic, high pass, and low pass filters, clipping indicator, and 4-way protection circuit.
  • Optional wired remote control available, providing convenient control and monitoring of amplifier performance.

Sundown Audio SAEv4-100.4 4x100W 4-Channel Amplifier SD-SAE-100.4-V4

This Listing Includes:

  • (1) Sundown Audio SAEv4-100.4 4-Channel Amplifier

The Sundown Audio SAEv4-100.4 4-channel amplifier is back by popular demand, reintroducing the beloved budget-friendly Korean-style amplifiers of the SAEv1 and SAEv2 series. With an all-new chassis and heatsink design featuring 33% more aluminum, this amplifier ensures optimal heat dissipation even during heavy loads, keeping your system cool for extended listening sessions.

Designed with high-fidelity Class A/B multi-channel architecture and Class D mono channels, the SAEv4 series strikes a balance between performance and affordability. Utilizing the latest half-bridge technology, these amplifiers maintain a compact form factor while delivering clean and powerful audio signals.

Featuring a comprehensive set of features, including variable subsonic, high pass, and low pass filters, as well as a clipping indicator and 4-way protection circuit (thermal, voltage, speaker short, and DC offset), the SAEv4-100.4 ensures optimal audio performance and amplifier protection.

With an input sensitivity of 6V max and RMS power output of 125W x 4 at 2 ohms and 100W x 4 at 4 ohms, this amplifier is capable of driving your car audio system with precision and clarity. The variable crossover slope (LPF/HPF) and high signal-to-noise ratio of 92dB further enhance audio quality.

Experience the perfect blend of affordability, performance, and reliability with the Sundown Audio SAEv4-100.4 4-channel amplifier.


  • 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

  • 125 x 4 @ 2 ohms RMS

  • 100 x 4 @ 4 ohms RMS

  • Variable High Pass Filter: 40HZ - 5kHZ

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

  • Signal / Noise Ratio: 92DB

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


  • Length: 14.88"

  • Width: 6.3" 

  • Height: 2.75"

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


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.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

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


If you have not received your package, but the tracking information shows that it was delivered,
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

Be sure to double check your mailbox and other usual spots for package delivery


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.