Sundown Audio - SALT 500.4
SKU: 25746333298

Sundown Audio - SALT 500.4

Sale price$720.00 Regular price$800.00
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Description

Sundown Audio - SALT 500.4The Sundown Audio SALT amplifiers represent the pinnacle of Korean Class D amplifier technology. They stand on the shoulders of the previous three generations of Sundown high end Korean amplifiers spanning 15 years (the SAZ v. 1, SAZ, v. 2, and SCV series) to reach even greater heights of performance. Our customers, for many years, have asked us to produce amplifiers that produce optimum power at realistic operating voltages in the 12s rather than 14+

The Sundown Audio SALT amplifiers represent the pinnacle of Korean Class-D amplifier technology. They stand on the shoulders of the previous three generations of Sundown high-end Korean amplifiers spanning 15-years (the SAZ v.1, SAZ, v.2, and SCV series) to reach even greater heights of performance. Our customers, for many years, have asked us to produce amplifiers that produce optimum power at realistic operating voltages in the 12s rather than 14+ volts. The SALT – Sundown Audio Low-Voltage Technology – series is our answer!

Whether you are a world-class SPL competitor, a dedicated enthusiast, or even a fan of Sound Quality the SALT series will be right at home in your system. Each and every model has been created with painstaking attention to detail to ensure that they bring a smile to your face each time the music starts playing and, further, to last for many years to come.

Cosmetically they are a huge departure from our original styling as an outward indicator of the enhanced levels of performance. The heat-sink is the heaviest we have ever produced, with the most surface area, and is finished with a striking titanium color. These amplifier looks as good as they sound and as soon as you hold one in your hands the build-quality is obvious. The icing on the cake lies in the revised remote control which features temperature, voltage, and clipping indicators to easily monitor the vitals of your valuable audio system.
Product Manual

FEATURES

  • Full Range Digital 4 Channel Amplifier
  • Double Sided Through Hole Epoxy PCB
  • Multi-Way Protection Circuitry ( Thermal / Voltage / Speaker Short / DC Offset )
  • Voltage, Temperature, and Clipping Display Wired Remote Control (Optional / Not Included with Multi-Channels)
  • Clipping indicator on amplifier side-panel
  • Optimized for standard 12v charging systems (Low Voltage Technology)

SPECIFICATIONS

  • Input Sensitivity : 6V - 0.2V
  • 1400 x 2 @ 4 ohms RMS
  • 700 x 4 @ 2 ohms RMS
  • 500 x 4 @ 4 ohms RMS
  • 2 OHM Stereo Stable / 4 OHM Bridged Stable
  • Variable Subsonic Crossover Filter : 10HZ - 500HZ
  • Variable High Pass Filter : 50HZ - 500HZ ( 500HZ - 5KHZ at x10 )
  • Variable Low Pass Filter : 50HZ - 500HZ ( 500Hz - 5KHZ at x10 )
  • X1, X10 Crossover Multiply
  • Efficiency : 75% 4OHM, at 100HZ
  • Signal / Noise Ratio : 105DB <
  • Damping Factor : 400 <
  • Frequency Response : 10 Hz – 25khz
  • 12DB/ OCT Variable Crossover Slope (HPF/LPF)
  • 12DB/ OCT Variable Subsonic Crossover Slope
  • Tested Voltage & THD : 12.8V & Less Than 1% THD
  • Operation Voltage : DC 9V - 15.5V Power Input
  • Recommended Fuse : 300 Amps
  • Dimensions : 14.96” L x 6.85” W x 2.66” H
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 25746333298

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    4.4 ★★★★★
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    Jesse Slater
    West Palm Beach, US
    ★★★★★ 3
    Good enough
    Size: 15x6.8, Color: Black
    As cheap as the day is long but functional. These are basically made out of highly compressed paper and finished to feel like wood. The first one I put up was good with a little tilt to the back which is fine. The second one has a more severe tilt and I had to bend the bracket down to decently level it out. They are sturdy enough to hold quite a bit of weight and look good for what they are. I'm not impressed but I'm also not disappointed, the price is a bit steep for what they are but they serve their purpose.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 15, 2025
    S
    Verified Purchase
    Satz
    Lexington, US
    ★★★★★ 4
    Great, but bring your own inserts.
    Size: 24x7.9, Color: Black
    These work great, easy to install. Happy with them. Only problem was the instructions say don’t use the include inserts on wallboard, which meant I had to go out and purchase my own. That’s OK, because I like to use inserts I trust.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 9, 2025
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    Linda Gill
    Chelsea, US
    ★★★★★ 5
    Sturdy and attractive
    Size: 15x6.8, Color: Black, Size: 15x6.8, Color: Black
    Love the shelves, great quality and design. They are very sturdy and perfect for my need. I ordered wine glass holders from Amazon and attached them to the shelves. Impressed and amazed at the look.
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    Reviewed in the United States on November 18, 2025
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    Verified Purchase
    Placeholder
    Louisville, US
    ★★★★★ 5
    Beautiful shelves.
    Size: 24x7.9, Color: White
    Beautiful shelves. Easy to put up once you get the holes level.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 28, 2026
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    MacWestie
    Louisville, US
    ★★★★★ 5
    Great shelves!
    Color: Grey, Size: 55 Inch, Style: 2 Pack
    This shelf is lovely--simple and modern. My handyman said it was easy to install AND made a note to buy it for his own rental units because he said the internal supports were very sturdy. Fast delivery and exactly as described--and the price is nice, too.
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    Reviewed in the United States on April 17, 2026

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