Search  for anything...

Sundown Audio Salt Series Monoblock Digital Class-D Amplifier (Salt-4 4000W Rms)

  • Based on 18 reviews
Condition: New
Checking for the best price...
$1,499.99 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 2 left in stock, order soon!
Fulfilled by Pro Audio Center (Authorized Dealer)

Arrives Tuesday, Jun 23
Order within 18 hours and 46 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: SALT-4


Voltage: 9 Volts


Manufacturer: Sundown Audio


Minimum Supply Voltage: 9 Volts


Mounting Type: Surface Mount


Brand: Sundown Audio


Voltage: 9 Volts


Minimum Supply Voltage: 9 Volts


Mounting Type: Surface Mount


Number of Channels: 4


Output Power: 4000 Watts


Package Type Name: Standard shipping box or padded envelope


Maximum Output Power: 4000 watts


Material Type: Aluminum


Specification Met: CE, FCC, RoHS, WEEE


Manufacturer: Sundown Audio


Model: Salt-4


Brand Name: Sundown Audio


Warranty Description: 1 Year Manufacturer


Part Number: SALT Series Monoblock Amplifier


Item Weight: 10 Pounds


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Boss Amp
Have this Amp on a Sundown X v3 , works great with it and I’ve never went into protect mode not one time , Awesome Amp !!!
Reviewed in the United States on October 14, 2025 by Tone

  • Exelente
👌👌👌👌👌
Reviewed in the United States on April 22, 2023 by Salvador Vazquez

  • Best quality amp
Get what you pay for
Reviewed in the United States on July 2, 2021 by Allan Krytus

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...