Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier
Best price now
Compared across 11 stores. Prices are checked against each store and labelled with when.
Ask our agent about this product
It checks today's price at every store, compares the alternatives and answers in about a minute.
Price facts
- Last seen at $1,399.95 at Intricate Audio Inc. on Nov 11.
- Checked at 11 stores.
Our take on the Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier
The SALT-4 is a monoblock Class-D subwoofer amplifier rated at 4,000 watts, built in Korea and tuned to make its power at realistic 12-volt electrical levels rather than 14+ volts. It is the fourth generation in Sundown's line of high-end Korean amps, following the SAZ v.1, SAZ v.2 and SCV series. It suits SPL competitors and serious bass enthusiasts who run stock or mildly upgraded charging systems. Against cheaper Brazilian and Chinese Class-D amps, it trades low cost for low-voltage output and a heavy heatsink; against Sundown's own SAZ line, it is designed for lower-voltage systems.
- Makes rated power at realistic 12-volt voltage
- Korean Class-D build with a long Sundown lineage
- Heaviest heatsink Sundown has produced, with the most surface area
- Monoblock design dedicated to subwoofer duty
- Suits both SPL competition and sound-quality systems
- 4,000-watt class amp demands stout wiring and electrical support
- Large, heavy heatsink takes up space in an install
- Low-voltage tuning means less headroom on high-voltage charging systems
- Premium Korean build costs more than budget Class-D rivals
Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier prices at every store
- Intricate Audio Inc.New
In stockReturn policy
$1,399.95Checked Nov 11 - The Stereo GuruNew
In stockReturn policy
$1,399.99Checked Nov 11 - Moon Car StereoNew
In stockReturn policy
$1,499.99Checked Nov 11 - Elite Auto GearNew
In stockReturn policy
$1,499.99Checked Nov 11 - Best Sound Car AudioNew
In stockReturn policy
$1,499.99Checked Nov 11 - DiscountCentralOnlineNew
In stockReturn policy
$1,499.99Checked Nov 11 - CybervalueNew
In stockReturn policy
$1,499.99Checked Nov 11 - Audio SavingsNew
In stockReturn policy
$1,499.99Checked Nov 11 - SoundLabzNew
In stockReturn policy
$1,499.99Checked Nov 11 - My StoreNew
In stockReturn policy
$1,499.99Checked Nov 11 - AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$1,499.99Free shippingChecked Nov 11
Store links may earn us a commission.
Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier price history
Lowest price we've seen: $1,499.99 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.
About the Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier
The Sundown Audio SALT-4 is a digital Class-D monoblock subwoofer amplifier rated at 4000 watts. SALT stands for Sundown Audio Low-Voltage Technology. The series is designed to deliver its power at realistic operating voltages in the 12-volt range rather than 14 volts and above.
It uses a dual MOS-FET PWM power supply and is stable down to a 1 ohm load. It can be linked with another unit. The heat sink is finished in titanium color. It has a wired remote control that shows voltage and temperature and has a clipping indicator.
Onboard controls include a variable low pass filter, a variable subsonic filter, variable bass boost and a variable 180° phase shift. A four-way protection circuit guards against thermal, voltage, speaker short and DC offset faults.
- Type
- Digital Class-D linkable monoblock amplifier
- Power
- 4000 W RMS at 1 ohm mono; 2000 W RMS at 2 ohms mono; 1000 W RMS at 4 ohms mono; 8000 W RMS at 2 ohms linked
- Stable load
- 1 ohm
- Low pass filter
- 24 dB/octave, variable 35 Hz to 250 Hz
- Subsonic filter
- 24 dB/octave, variable 10 Hz to 50 Hz
- Bass boost
- 9 dB/octave, variable 0 to 9 dB at 45 Hz
- Phase shift
- Variable 0 to 180 degrees
- Input sensitivity
- 6 V to 0.2 V
- Frequency response
- 10 Hz to 250 Hz
- Efficiency
- 90% or higher
- Signal-to-noise
- 90 dB or higher
- Damping factor
- 400 or higher
- Tested at
- 12.8 V with less than 1% THD
- Operating voltage
- DC 9 V to 15.5 V
- Recommended fuse
- 400 A
- Protection
- Thermal, voltage, speaker short, DC offset
- Remote
- Wired remote with voltage and temperature display and clipping indicator
- Dimensions
- 22.05 in L x 8.67 in W x 2.80 in H
Questions and answers
- What makes the SALT-4 different from other Sundown amps?
- It is tuned to produce optimum power at 12-volt electrical levels instead of 14+ volts. That makes it a better fit for vehicles with stock or modest charging systems than Sundown's older high-voltage-oriented amps.
- Is the SALT-4 a good match for a daily-driven car?
- Yes, if the electrical system can support it. Its low-voltage design is aimed at real-world 12-volt operation, but a 4,000-watt amp still needs adequate wiring, fusing and charging.
- How does it compare with the SAZ v.2 or SCV series?
- Sundown positions the SALT series as the next step beyond those earlier Korean amps. The main change is the low-voltage tuning, plus a larger heatsink for the higher performance.
- What is the SALT-4 rated at?
- It is a 4,000-watt monoblock Class-D amplifier. It is a single-channel amp intended for subwoofers, not for full-range speakers.
- Does it work for sound quality builds, not just SPL?
- Sundown says the SALT series suits SPL competitors, enthusiasts and sound-quality fans alike. It is a subwoofer amp, so it drives bass only.
- Where is the Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier cheapest?
- At Intricate Audio Inc., for $1,399.95, as of our latest check.
- What do buyers say about the Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier?
- Rated 5 out of 5 from 8 ratings.
- Where can I buy the Sundown Audio SALT-4 Monoblock Digital Class-D Subwoofer Amplifier?
- 11 stores we checked sell it, including Moon Car Stereo, Elite Auto Gear, Best Sound Car Audio, Intricate Audio Inc., DiscountCentralOnline.
