I have 2 sundown x 15s. would a salt 4 be enough to maximize those subs or should i get a salt 6?. electrical is very very strong.

They can handle the 6 if the rest of the install is done right... 🔊⬆️🌕

What gauge size holes are the battery terminal inputs?

The SALT-4 uses a set of 0/1 gauge inputs

Will the Salt 4 overpower two U15's wired to 1 ohm load?

We've seen people beat up on a single U-12 with a SALT-4. The pair of 15's on one amp would actually be a pretty perfect match!

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

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

Product ID: 714510183

Details

Brand
Sundown Audio
Manufacturer
Sundown Audio
Mounting type
Surface Mount
Number of channels
4
Voltage
9 Volts

⚡4000W RMS max power

💡Status LED for protection mode

🔥Advanced heat sink design

HK$21755

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Description

⚡ Amp up your ride with power and precision!

TRUSTED BY PROS - Top-rated with a perfect 5-star score, this amp is the go-to for serious car audio enthusiasts.
SMART PROTECTION - Built-in status LED instantly alerts you if the amp switches to protection mode—no surprises.
PLUG PLAY CONFIDENCE - Surface mount design and 4 channels make installation seamless and versatile for any setup.
POWERHOUSE PERFORMANCE - Unleash a massive 4000W RMS output for crystal-clear, earth-shaking sound.
STAY COOL UNDER PRESSURE - Innovative heat sink design ensures your amp runs cooler, longer, and stronger.

The Sundown Audio Salt Series SALT-4 is a 4-channel Class D digital amplifier delivering a robust 4000W RMS output. Featuring a redesigned heat sink for superior cooling and a status LED indicator for real-time protection monitoring, this surface-mount amp combines reliability with high performance. Perfect for both newcomers and seasoned car audio fans, it’s a trusted, highly rated powerhouse that elevates any vehicle sound system.

Specifications

ASIN	B08SHG6L2J
Brand	Sundown Audio
Brand Name	Sundown Audio
Customer Reviews	5.0 out of 5 stars 22 Reviews
Item Weight	10 Pounds
Manufacturer	Sundown Audio
Maximum Output Power	4000W
Minimum Supply Voltage	9 Volts
Minimum supply voltage	9 Volts
Model	Salt-4
Mounting Type	Surface Mount
Mounting type	Surface Mount
Number of Channels	4
Number of Items	1
Number of channels	4
Part Number	SALT Series Monoblock Amplifier
Unit Count	1.0 Count
Voltage	9 Volts

Reviews

J**G

Speaks for itself

If you’re new to car audio this is one of the best amps you can get unless you’re doing sql builds and even then it’s not a bad choice. Not a huge sundown fan but this is my buy once cry once amp

27.08.2026

T**E

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 !!!

14.10.2025

S**Z

Exelente

👌👌👌👌👌

22.04.2023

A**S

Best quality amp

Get what you pay for

2.07.2021

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HK$21755

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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