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Description

Sundown Audio SALT-1.5 

SALT‑1.5 is a powerful, mono‑block Class‑D amplifier from the “SALT” series by Sundown Audio. It’s designed to deliver high‑power output even on typical 12 V automotive electrical systems, making it ideal for subwoofer setups or high‑power sound systems in cars. The amplifier includes adjustable low‑pass and subsonic filters, bass boost, phase shift control, and a wired remote for bass/level control  offering flexibility and control over bass output and overall sound tuning.


Specifications

  • Input Sensitivity : 6V – 0.2V
  • Efficiency : 90% <
  • Signal / Noise Ratio : 90DB <
  • Damping Factor : 400 <
  • Frequency Response : 10 Hz – 250 HZ
  • Tested Voltage & THD : 12.8V & Less Than 1% THD
  • Operation Voltage : DC 9V – 15.5V Power Input
  • Recommended Fuse : 160 Amps
  • Dimensions : 7.87” L x 8.67” W x 2.80” H

About The Product

Producing optimum power at realistic voltages (the 12s, rather than needing 14+ volts), the SALT – Sundown Audio Low-Voltage Technology – is Sundown’s answer! SALT amplifiers represent the pinnacle of Korean Class-D amplifier technology. Whether you are a world-class SPL competitor or a hardcore sound quality fan, the SALT series will be right at home in your system. 

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Questions and Answers

Q1: What power output does SALT‑1.5 deliver?

A1: It delivers:

  • 1,500 W x 1 at 1 Ω (mono)

  • 750 W x 1 at 2 Ω (mono)

  • 400 W x 1 at 4 Ω (mono

Q2: What filters and controls does the amp include?
A2: It includes a 24 dB/oct variable low‑pass filter (35 – 250 Hz), a 24 dB/oct variable subsonic filter (10 – 50 Hz), a bass‑boost control (0 – 9 dB at 45 Hz), and 0 – 180° phase shift control.
Q3: Is SALT‑1.5 stable at low impedance (i.e., good for 1 Ω subs)?
A3: Yes  SALT‑1.5 is 1 Ω‑stable, making it suitable for demanding subwoofer loads.
Q4: What protections and safety features does it have?
A4: It includes four‑way protection circuitry: thermal protection, voltage protection, speaker‑short protection, and DC‑offset protection. It also features power/clipping/protection LED indicators and comes with a wired remote control for voltage, temperature, and clipping monitoring.
Q5: What are the key electrical and technical specs (frequency response, input sensitivity, fuse)?

A5:

  • Frequency response: 10 Hz – 250 Hz

  • Input sensitivity: 0.2 V – 6 V

  • Operating voltage: DC 9 V – 15.5 V

  • Recommended fuse: 160 A


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