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Amplifier Zapco ST-104D SQ III

4-channel amplifier, 4 x 100 / 2 x 300 W RMS (4 Ω), 4 x 150 W RMS (2 Ω), class D
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Amplifier Zapco ST-104D SQ III
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Amplifier Zapco ST-104D SQ III

Zapco's Studio-X range of amplifiers has been designed specifically for today's car audio market. Studio-X's compact chassis allows for easy installation in any car, and the modern angular design will make your sound system look as great as it sounds. And speaking of sound... This is a Zapco amplifier, where sound quality always comes first. However, durability and reliability are also among the main advantages. It is not at all unusual to see Zapco amps being passed from car to car and generation to generation. Zapco amplifiers made in the 1990s are still traded and purchased online by audio quality enthusiasts around the world. The Studio-X range of amplifiers will be no different, they are designed to last for decades.

Zapco Studio-X Compact Class D Amplifiers

In 2022, Zapco comes with six innovative class AB amplifiers in its third generation. The chassis of the amplifier is completely new, with brushed aluminum replacing the black color, and several modifications have been made to the internal components to take the sound quality up another notch. All amps use bipolar output devices for the smoothest possible sound. ST-X amplifiers share variable electronic HP/LP/Full Range crossovers, variable bass gain, variable gain by channel pair, speaker level input, heavy-duty positive-locking terminal blocks, and preamplifier outputs for chaining to another amplifier in your system without you would have to add additional RCA cables. And the most important feature shared by all ST-X amplifiers is Zapco's legendary sound quality, developed with over 40 years of experience. This also applies to the new Studio-X Compact series, which, thanks to the digital class D, has significantly smaller dimensions, high efficiency and, above all, strives to sound closer to its analog siblings. It is sound quality that has always defined the Zapco brand, and its engineers have gone to great lengths to ensure that their digital amplifiers do not fall behind the legendary Zapco sound.

The main features of the Zapco ST-104D SQ III amplifier

  • 4-channel class D amplifier.
  • Power 4 x 100 / 2 x 300 W RMS (4 Ω).
  • Brushed aluminum chassis with compact dimensions
  • Stable up to 2 Ω, in the bridge up to 4 Ω.
  • RCA and high-level inputs.
  • Automatic switching thanks to the Auto Turn On function.
  • Stepless control of input power from 350 mV to more than 9 volts.
  • The bass boost level can be changed from 0 to 12 dB.
  • Socket input terminals.

About Zapco Amplifiers

Zapco is the oldest high-end car audio brand in the world, specializing in high-end car amplifiers and DSP processors. The company was founded in the USA back in 1974 and has been collecting one award after another since then. And this both from prestigious organizations that evaluate the quality of products and innovations, and also at worldwide competitions focused mainly on sound quality. Zapco amplifiers represent audiophile quality without compromise, defining the standard of quality and setting the criteria by which other products in the industry are judged. At Zapco, for over 45 years, they have been constantly looking for innovative ways to bring better sound to the automotive environment, and this relentless pursuit of absolute sound quality has always resulted in new technologies and high-end products. Are you asking why? Because nothing else can capture the soul and bring tears to the eyes like music. Music can make you dance for joy....., of all the arts, music has the most powerful and immediate effect on your body and mind. Reproducing music in all its beauty and subtlety deserves nothing less than the best efforts of all Zapco employees. And also because music matters!

Catalog numberST-104D SQ III
BrandZapco
LinksOfficial web presentation (English)

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