Audiophile Tube Preamplifier with 4 Inputs, 2 Outputs, and Lossless Audio Switching

The Electric Tube Amplifier boasts a range of impressive specifications. Crafted from aluminum alloy, it delivers 2 stereo output signals with an input sensitivity of 0.775V. Powered by a 12V input, it can handle 4 stereo input signals and maintains a frequency response of 20Hz to 20kHz. The amplifier offers adjustable treble and bass controls with a ±6dB range, and typically exhibits a harmonic distortion of 0.04%. It can drive headphones with an impedance between 32-300Ω, providing up to 160mW of power into a 32Ω load. The signal-to-noise ratio is greater than 100dB (20Hz-20kHz). The unit's dimensions are 145 x 85 x 85mm, and the packaged dimensions are 242 x 180 x 118mm, with a total weight of 800g.

The SA-1000 preamplifier combines a tube preamplifier and a lossless audio switcher in a single, all-aluminum enclosure. This innovative design effectively addresses common audio issues, such as insufficient line output, sound conversion noise, and more, to ensure a pure, high-quality audio output experience. The preamplifier's independent circuit design allows it to deliver low-distortion, highly restored audio signal processing.

Comprehensive audio connectivity is a key feature of the SA-1000. It is equipped with 4 sets of RCA audio input interfaces, allowing users to connect a variety of audio source devices, including smartphones, computers, and media players. Furthermore, the preamplifier provides 2 sets of RCA audio output interfaces, enabling seamless connection to amplifiers, active speakers, and other audio equipment. This flexible input and output configuration allows users to freely switch and select their desired audio sources and destinations, ensuring high-quality sound performance throughout the entire audio chain.

The SA-1000 preamplifier is designed with a focus on professional sound quality optimization. It features a built-in 5532 operational amplifier chip, which, combined with adjustable treble and bass controls, allows users to customize the sound parameters to suit different audio equipment. The headphone section also utilizes a 5532 chip, enabling the preamplifier to effortlessly handle a wide range of headphone impedances on the market, delivering clear, detailed, dynamic, and powerful sound performance.

The SA-1000's design blends style and durability. The aluminum alloy housing, accompanied by vintage tube and VU meter elements, creates a visually appealing and compact desktop unit. Additionally, the use of gold-plated RCA lotus sockets ensures low impedance, high conductivity for signal transmission, and enhanced durability.

As a comprehensive audio device, the SA-1000 serves as the core component for building a desk-based audio system. It seamlessly combines the functions of a bilevel preamplifier, lossless audio switcher, and audiophile-grade headphone amplifier. With 4 simultaneous input sources and 2 output options, the SA-1000 provides a rich interface, while ensuring that each signal pathway is independently isolated, preventing interference between various audio components.

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