TOPPING A90 Discrete Headphone Amplifier - Apos Certified

The SMSL SP200 THX AAA-888 headphone amplifier is no longer in production, but Apos Audio is proud to present its outstanding successor, the SMSL SH-9, which carries forward the same groundbreaking THX AAA-888 technology. This amplifier is engineered for audiophiles who demand nothing less than flawless sound reproduction and immense power. With THX AAA-888 technology, the SP200 delivers an incredibly clean and powerful audio experience. It dramatically reduces distortion, harmonics, and noise, offering up to 40 dB lower distortion than conventional amplifiers. The result is a rich, immersive, and fatigue-free listening session, whether you’re enjoying music, gaming, or critical studio work. Versatility is a key strength of the SP200. It effortlessly drives a wide range of headphones, including high-impedance models, planar magnetic designs, and sensitive in-ear monitors. You get both balanced XLR and single-ended quarter-inch outputs, plus RCA and XLR inputs, making it easy to integrate into any high-fidelity setup. Built for performance and reliability, the SP200 features a robust CNC aluminum chassis that minimizes interference and vibration. Its internal 24W ultra-low noise power supply, high-precision resistors, and pop-less relay design ensure stable operation and long-term durability. On the specs side, this amp is a powerhouse. It delivers up to 6W per channel into 16 ohms, with a signal-to-noise ratio of 130 dB and total harmonic distortion as low as 0.00007%. Whether you choose low or high gain, you’re guaranteed pristine audio across the entire frequency spectrum. Reviewers and listeners alike praise the SP200 for its clean output and authoritative drive. As one expert noted, “Low noise plus a ton of power is an awesome combination.” It’s the ideal choice for listeners who value clarity, dynamics, and effortless control. While the SP200 has reached end of life, Apos Audio offers the SMSL SH-9 as a modern alternative with similar excellence. Visit Apos.audio to explore this and other high-performance audio solutions, backed by expert support and customer-focused service.

Big power, small spaces The SMSL DA-6 is a power amplifier that outputs a serious 70W x2 of power but takes up less than six inches of space on its longest side. A member of the SMSL "-6" family, it is made to stack with the SMSL SU-6 Mini Desktop DAC and SMSL SH-6 Mini Desktop Amp. Together, they create a formidable audiophile-grade stack at an entry-level price. Aluminum alloy CNC shell The SMSL DA-6 is made with an aluminum alloy CNC shell. Perhaps the greatest chassis material in the world, it is strong, lightweight, and excellent at heat dissipation. Multiple EQ presets Make sound signature adjustments on the fly with the DA-6's built-in EQ presets. Options like "super bass effect," "soft effect," and "clear effect" can correct sub-par speakers or accentuate certain frequencies when you need it. Product highlights German Infineon new silicon carbide amplifier chip Electronic volume control Multiple EQ presets Three analog stereo effects Large power adapter High quality gold-plated audio connectors CNC precision chassis Remote control Specs Output power: 70W x2 (4Ω) Frequency response: 20Hz - 40kHz Bass or treble gain: -14dB - 14dB THD+N: 0.004% Channel separation: 91dB (1kHz) Input sensitivity: 400Vrms SNR: 103dB Maximum output voltage Low gain: 2Vrms High gain: 1.2Vrms Power consumption: 36W Dimensions: 5.5" x 1.1" x 4.3" (140mm x 28mm x 110mm) Weight: 0.77lbs (0.35kg) Pairs well with SMSL SU-6 Mini Desktop DAC SMSL SH-6 Mini Desktop Amp

Pinnacle Audio-for Less Introducing the TOPPING A70 Pro, a fully balanced headphone amplifier that takes your listening experience to new heights. Featuring the cutting-edge T'ang-ku-la Module, ultra-low noise input stage, and a whopping 17000mW x 2 output power, this powerhouse delivers unparalleled audio performance. And with the added bonus of acting as a preamplifier, the A70 Pro seamlessly adapts to your audio needs. Dive into the world of high-fidelity sound with precision control, customizable settings, and a vibrant Aurora UI-all in one sleek package. T'ang-ku-la Module: Soaring Performance The T'ang-ku-la Module, named after a mountain that an eagle can't fly over, symbolizes the soaring spirit of this amplifier. This module features a new three-stage feedback circuit that further reduces noise and high-frequency distortion, pushing the dynamic range to an unmatched 147dB. The innovative technology also reduces heat generation, enhancing reliability, extending component life, and lowering thermal noise. Re-optimized Circuit Architecture The A70 Pro boasts a newly developed ultra-low noise input stage that improves the balanced input noise performance and increases input impedance to 20kΩ, ensuring better compatibility with incoming devices. The redesigned gain architecture further diminishes noise and distortion at high gain states compared to its predecessors. Ground Loop Noise: Disappearing Magic Say goodbye to ground loop noise with the A70 Pro's GND/LIFT switch. When noise is encountered, simply switch to LIFT mode, and the noise will vanish. Aurora UI: A New Experience The A70 Pro boasts a full-color screen and three touch buttons, allowing you to customize the playback information, FFT, and VU according to your preferences. Additional functions are available by pressing the volume knob. Relay Volume Control Experience precise volume control with the A70 Pro's relays and resistor networks, forming an R2R volume control module. This ensures long service life and accuracy, even at low volume levels. Product Highlights Unprecedented high power output: 17000mW x 2 Vanishingly low distortion Relay volume control Two gain settings T'ang-ku-la Module for improved performance Re-optimized circuit architecture Ground loop noise elimination Expandable inputs with Ext90 input expansion Can function as a headphone amp or preamp 12V Trigger for seamless device synchronization Specs Max THD+N: