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  5. SALT-500.4

SALT-500.4

700 Watt

SALT-500.4

Technical Highlights

  • Power: 1400 x 2 @ 4 Ohm, 500 x 4 @ 4 Ohm, Efficiency: 75%.
  • Impedance: 2 OHM Stereo Stable, 4 OHM Bridged Stable.
  • Frequency Response: 10 Hz 25 kHz, Signal-to-Noise Ratio: 105 dB.
  • More technical details
€1,649.00
€1,649.00 €1,649.00
2% discount with credit card
including VAT
Estimated delivery: Sep 25–Oct 2.
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datasheet
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Product description

The Sundown Audio SALT-500.4 is a top-notch 4-channel amplifier. As the latest model in the SALT series, this sound amplifier represents the pinnacle of Korean Class-D amplifier technology and is specifically designed for optimal performance at realistic operating voltages in the 12-volt range. You will be impressed by the attention to detail and groundbreaking features, ranging from temperature, voltage, and clipping indicators to low-voltage technology. The striking titanium-colored design and robust construction make the SALT-500.4 an impressive addition to any audio system.

properties

  • The Sundown Audio SALT amplifiers represent the pinnacle of Korean Class-D amplifier technology. They stand on the shoulders of three previous generations of Korean high-end amplifiers from the past 15 years (the SAZ v.1, SAZ v.2, and SCV series) to achieve even higher performance. Our customers have been asking us for many years to produce amplifiers that deliver optimal performance at realistic operating voltages in the 12V range and not at 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 simply a fan of sound quality, the SALT series will feel at home in your system. Each individual model has been designed with great attention to detail to ensure that they bring a smile to your face every time the music starts playing, and that they will last for many years to come."
  • Cosmetically, they deviate significantly from our original design, which is an external indicator of the improved performance level. The heatsink is the heaviest we have ever produced, has the largest surface area, and is finished in a striking titanium color. These amplifiers look as good as they sound, and once you hold one in your hands, the build quality is obvious. The icing on the cake is the revised remote control with temperature, voltage, and clipping indicators, allowing you to easily monitor the vital signs of your valuable audio system.
  • Digital 4-channel full-range amplifier
  • Double-sided epoxy circuit board with through holes
  • Multi-way protection circuit (thermal / voltage / speaker short circuit / DC offset)
  • Voltage, temperature, and overload display Wired remote control (optional / not included in the delivery of multi-channel devices)
  • Clipping display on the amplifier side panel
  • Optimized for standard 12V charging systems (Low Voltage Technology)

Technical Data

  • Input sensitivity: 6V - 0.2V
  • 1400 x 2 @ 4 Ohm RMS
  • 700 x 4 @ 2 Ohm RMS
  • 500 x 4 @ 4 Ohm 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)
  • Multiply X1, X10 crossover
  • Efficiency: 75% 4OHM, at 100HZ
  • Signal-to-noise ratio: 105DB <
  • Damping factor : 400 <
  • Frequency response: 10 Hz - 25 kHz
  • 12dB/OCT Variable Slope of the Crossover (HPF/LPF)
  • 12dB/OCT Variable Slope of the Subsonic Crossover
  • Tested Voltage & THD: 12.8V & less than 1% THD
  • Operating voltage: DC 9V - 15.5V input voltage
  • Recommended fuse: 300 Amperes
  • Dimensions 37.8 cm L x 17.3 cm W x 6.6 cm H

datasheet

Open data sheet

Frequently Asked Questions about SALT-500.4

What is the output power of the Sundown Audio SALT-500.4 Amplifier at different ohm values?

The Sundown Audio SALT-500.4 Amplifier offers various output powers that vary depending on the resistance value. At a load of 4 Ohm, the amplifier delivers 1400 Watts RMS over two channels and 500 Watts RMS over four channels. When the resistance is reduced to 2 Ohm, the amplifier can provide 700 Watts RMS over four channels. These power capabilities make the amplifier a flexible choice for various audio system configurations. The technical specifications for impedance indicate that the amplifier is 2 Ohm stable in stereo and supports 4 Ohm in bridged mode, ensuring high adaptability.

What special filter options does the Sundown Audio SALT-500.4 offer?

The Sundown Audio SALT-500.4 Amplifier is equipped with several important filter options. Parameters include a variable subsonic crossover filter with a range between 10 Hz and 500 Hz. Additionally, it offers a variable high-pass filter with a frequency range of 50 Hz to 500 Hz, which can be adjusted up to 5 kHz when multiplied (x10). A low-pass filter, also variable from 50 Hz to 500 Hz, is onboard, with the option to go up to 5 kHz when multiplied (x10). These filter options allow for targeted control and adjustment of the audio signal, which is particularly important for demanding audio applications.

How efficient is the Sundown Audio SALT-500.4 Amplifier under 4 Ohm operating conditions?

The amplifier features an efficiency of 75% at 4 Ohm, determined at a measurement frequency of 100 Hz. Efficiency is a key element of this model, as it reduces overall operating costs and heat generation. The high efficiency means that a larger portion of the electrical energy consumed is converted into output power, leading to a more efficient use of resources. Especially in environments where space and resources are limited, this figure allows for better performance of the entire audio system. Efficiency is a critical aspect for enthusiasts and tech fans.

What special protection mechanisms are integrated into the Sundown Audio SALT-500.4?

The 4-channel amplifier from Sundown Audio features a multi-way protection circuit that provides comprehensive protection against various hazards. This includes thermal monitoring, voltage monitoring, protection against speaker short circuits, and DC offset. Thanks to these protection mechanisms, the operation of the amplifier remains safe and reliable under most conditions. Special attention should be given to voltage monitoring and thermal monitoring, which help to detect and prevent overheating and voltage anomalies in a timely manner. These functions ensure that the device is optimally protected in various application scenarios.

In what voltage range does the Sundown Audio SALT-500.4 operate most effectively?

The Sundown Audio SALT-500.4 is designed for an operating voltage range of DC 9V to 15.5V, with a focus on realistic operation in the 12V range. Optimal performance, based on the products of the Low Voltage Technology series, is achieved at a voltage of 12.8V with less than 1% THD (Total Harmonic Distortion). This demonstrates the device's ability to deliver excellent audio performance under typical conditions. Users integrating an audio system in a vehicle or other mobile environment will appreciate this adaptability. Adhering to these voltage parameters ensures the safe operation and integrity of the sound system.

What adjustment options does the included remote control offer for the Sundown Audio SALT-500.4?

The revised remote control for the Sundown Audio SALT-500.4 impresses with features specifically designed for monitoring and controlling amplifier performance. It displays temperature, voltage, and potential clipping, among other things. This way, you always have the most important operating parameters of your audio system in view. Especially if you enjoy listening to music loudly, this offers the advantage of receiving a safety warning before critical values are exceeded. While the remote control can be optionally purchased for multi-channel devices, it still provides an invaluable way to maximize the lifespan and performance of your amplifier.

What input impedance sensitivity does the Sundown Audio SALT-500.4 offer?

The Sundown Audio SALT-500.4 amplifier features adjustable input sensitivity, allowing for a range between 6V and 0.2V. This flexibility means that the amplifier can optimally process and amplify different signal sources. The high input impedance and wide adjustment options are ideal for integrating a variety of device configurations into an audio system. This adjustment process is crucial for minimizing distortion and optimizing sound quality, regardless of the specified sources. This technical feature allows users to efficiently integrate the amplifier into an existing audio installation without compromising sound quality.

What frequency response range does the Sundown Audio SALT-500.4 cover?

The frequency response of the Sundown Audio SALT-500.4 is impressive, ranging from 10 Hz to 25 kHz. This wide frequency coverage allows for the reproduction of nearly all sounds within the audible range with high precision and detail. The carefully developed electronics, combined with the detailed design, ensure sound fidelity that impresses even the most demanding audiophiles. This wide spectrum is particularly important for complex musical pieces that encompass a broad frequency range and need to be represented in detail. It showcases the amplifier's potential to transmit both deep bass and high frequencies clearly and without resonance.

How does the Sundown Audio SALT-500.4 ensure that no distortion occurs?

The Sundown Audio SALT-500.4 is designed to minimize distortion through various mechanical and electronic measures. Notably, it uses double-sided epoxy circuit boards with through-holes for optimal electrical connections. The clipping indicator, integrated into the amplifier's side panel, also serves as a control feature, allowing users to receive visual feedback before distortion occurs. The amplifier operates at a tested voltage of 12.8V and less than 1% THD, a clear signal to users that audio quality is maintained even under heavy load. These measures sustainably optimize signal purity.

What are the dimensions of the Sundown Audio SALT-500.4 and how do they affect installation in the car?

The compact dimensions of the Sundown Audio SALT-500.4, measuring 37.8 cm in length, 17.3 cm in width, and 6.6 cm in height, allow for efficient integration into most vehicles. These measurements are crucial for mounting the amplifier in various locations within the vehicle, even when space is limited. The stable yet space-saving design facilitates installation without compromising performance and sound quality. The design allows for customizable installation options in both common and more specialized vehicle models, such as sedans or SUVs. During installation, it is essential to ensure that there is sufficient space for airflow for cooling.

Manufacturer information/responsible person

JR Labs
Rainer Jakob
Heinrich-Hertz-Straße 13 A
46325 Borken
Germany

Contact: jakobrainer@jr-labs.eu