2019年4月22日 · SINAD is simply the reciprocal of THD+N (eg -105 THD+N = 105 dB SINAD). And as you know, the THD+N versus power curve has 3 distinct regions: Noise limited, optimum and harmonic limited. The best THD+N and SINAD will always come from the optimum region which is far below the highest highest power.

2019年2月23日 · The “standard” SINAD test (BW 60Hz – 20kHz) with 50 ohm generator was performed as well and OPA627 version SINAD was 77.72dB, ADA4898 version SINAD was 87.96dB, so seemingly better and ADA4898 would win in a standard chart test as is used, however, in a real world with real MM cartridges (any) the OPA627 version is considerably …

2024年12月29日 · In practice SINAD is neither constant across the frequency range nor across the power range. Furthermore, the spectrum of THD components is not revealed by SINAD. All these things do matter, especially if the single number SINAD is close to what You can reasonably assume as the level of detectability when listening music, which imho is in most ...

2022年8月15日 · The SINAD was limited by distortion. -85 db of distortion is not an issue. If you look at the power vs distortion measurements in the case of the SR8015 it is several db lower at 8 ohms than 4 ohms. It was distortion dominated into 4 ohms around -65 db which you still are not going to hear with music.

2022年6月27日 · To measure THD+N (or SINAD), measure the fundamental over 1/2 octave below the fundamental frequency and 1/2 octave above. For a signal at 1kHz, that means, from 707Hz and 1414Hz. Noise is computed on the remaining frequencies only (from 20-707Hz and from 1414-20000Hz)

2016年2月13日 · This is a table showing the best audio DACs and the worst based on its measured distortion and noise which is expressed as "SINAD" (signal above power of distortion and noise). It is the average of the two channels tested.

2025年1月5日 · Further, a SINAD ranking being available or not isn't going to change that either. It's a little bit like kids sport, where some parents don't want scores kept... the kids and all spectators are all keeping score in their minds anyway. The SINAD chart is just an easy way for people to refer to a key engineering measurement metric across all ...

2024年12月19日 · This is the updated chart with SINAD and noise results for the Openamp MM phono preamplifier with various op-amps. Noise was measured with M35X cartridge at the input. SINAD was measured from 50 ohm low noise generator and 5mV/1kHz signal. SINAD with the cartridge was calculated using the formula posted in the post #1 of this thread.

2020年9月18日 · I wanted to compare amplifiers measured elsewhere to the ASR standard measurements: SINAD at 5W in 4 ohms, and power at 1% THD+N in 4 ohms. So I chose some amplifiers that interested me more (let me know if you wish I can add more), read their graphs, converted to SINAD, color coded and created the list below. I hope you find as interesting as ...

2025年1月8日 · SINAD is measured at 1kHz and an amp (or DAC) can have a considerable roll-off in the lows (and/or highs) that is audible yet have very low distortion at 1kHz AND very low noise for instance. All that is needed is a little disclaimer displaying what SINAD can show (as explained in the video, that can be short) and what it does not.