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  1. Topping D900 DAC Review - Audio Science Review (ASR) Forum

    Mar 15, 2026 · This is a review and detailed measurements of the Topping D900 discrete "1-bit" balanced smart DAC with PEQ. It was sent to me by the company and costs US $1,799. The D900 …

  2. Topping DX5II Balanced DAC and Headphone Amp Review

    Jul 20, 2025 · This is a review, listening tests and detailed measurements of the Topping DX5 II Smart DAC and balanced headphone amplifier. It was sent to me by the company and costs US $299. The …

  3. Topping A50 III Headphone Amp Review - Audio Science Review (ASR) …

    Oct 6, 2025 · Topping A50 III Measurements Noise performance with same unbalanced in and out is superb: Indeed, at 50 mv output, it tops our charts: View attachment 480989 If you have a super …

  4. Topping PA7 Plus Amplifier Review - Audio Science Review (ASR) Forum

    Apr 18, 2023 · This is a review and detailed measurements of the Topping PA7 Plus stereo class D amplifier. It was sent to me by the company and costs US $549. The PA7 Plus is stylish with firm …

  5. Topping Centaurus R2R DAC Review - Audio Science Review (ASR) Forum

    Dec 14, 2024 · This is a review, detailed measurements and listening test of the Topping Centaurus R2R stereo balanced DAC with PEQ filter support. It was sent to me by the company and costs US …

  6. Topping DX9 Discreet - What's the point? - Audio Science Review …

    Dec 6, 2022 · Topping has just released the Topping DX9 Discrete, its a non-Delta Sigma dac or R2R (though this seems like a fancy R2R from my layman's pov) and I just have to wonder, what's the …

  7. Topping DX3 Pro+ Review (DAC & Headphone Amp)

    Feb 13, 2016 · This is a review and detailed measurements of the Topping DX3 Pro+ DAC and headphone amplifier. It is a replacement for one of my most favorite combo products, the DX3 Pro. It …

  8. Topping A90 Headphone Amplifier Review - Audio Science Review …

    Feb 13, 2016 · This is a review and detailed measurements the Topping A90 Balanced and Unbalanced Headphone Amplifier. It was kindly sent to me by the company. The A90 is available for ordering and …

  9. Topping E50 Review (Balanced DAC) - Audio Science Review (ASR) Forum

    Feb 13, 2016 · This is a review and detailed measurements of the new Topping E50 balanced USB DAC. It was sent to me by the company and costs US $269. I just reviewed its companion …

  10. Topping A90 Discrete Review (Headphone Amp & Preamp)

    Jun 21, 2022 · Happily Topping approaches everything with extreme focus on performance and they managed to get the A90 discrete within a split hair of the op-amp version. But then innovated with …