My guess is a combination of windowing artifacts (keep in mind that frequency scale is logarithmic so FFT bins get progressively wider down there) and opamp 1/f noise. Only occasionally is there an actual rise in distortion e.g. as a result of coupling capacitors or internal power supply issues.nice!
does anyone know why the multitone graph usually shows more distortion in lower frequencies?
Pretty sure it is the volume control in the DAC.Is the volume control via digital attenuation or relay based?
They are marginal differences, 1.1 watts vs 700 mW is about 1.5 dB, I don’t call that « much higher power » I think it comes down to look and feel. Me I prefer this one, but it’s me. Performance wise they are effectively about the same in real world. Beside maybe for some ultra sensitive IEMsI'm still not sure what's the point of this product --- their sister company (SMSL)'s M500 MKII is similar priced (maybe only $10 more expensive), but with better performance (no ess hump for instance). M500's HP Amp is significantly better (almost 10db better 50mv SINAD, and much higher power). It also comes with a very nice display and in a prettier, more compact package.
Thanks, Amir.Pretty sure it is the volume control in the DAC.
Do we have measurements for this?MiniDSP Flex
Yet another great performer. Nice design too, will match well with Cambridge audio etc.Wow. For a name you would never think of when you saw it on Amazon that's amazing.
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It's as if performance matters!
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Do we have measurements for this?
They use a-weighting which improves SNR and in turn, SINAD. My measurements are unfiltered.It looks though, like the measurements presented in this diagram are slightly worse than they are here - maybe it was a prototype.
But then, shouldn't it be the other way round - their diagram should look better?They use a-weighting which improves SNR and in turn, SINAD. My measurements are unfiltered.
HI there.
Benchmark talked about headroom for intersample peaks. Can we read from Amir's measurement if this DAC supports or not?
Thank you.
This is a good point. Why be interested in a good dac for 400 dollars that dont have crossover abilitys or dsp eq ?Not bad at all. But for just a bit more money, wouldn't you rather have a MiniDSP Flex and a $120 headphone amp (say, the Magni) that performs better?
With the Flex, you can listen LPs with properly EQd headphones with the full 20 bit dynamic range. And then add a tube amp EQ filter when you want to dream about your ancestral hi fi sound. Maybe you can make Joy Division sound like it was intended to: on a cassette player in a car.
Of course, the second paragraph is meant to be cute. But I honestly think the MiniDSP Flex is a game changer. It should completley change the workflow for how Amir tests speakers.
Hi,Not bad at all. But for just a bit more money, wouldn't you rather have a MiniDSP Flex and a $120 headphone amp (say, the Magni) that performs better?
With the Flex, you can listen LPs with properly EQd headphones with the full 20 bit dynamic range. And then add a tube amp EQ filter when you want to dream about your ancestral hi fi sound. Maybe you can make Joy Division sound like it was intended to: on a cassette player in a car.
Of course, the second paragraph is meant to be cute. But I honestly think the MiniDSP Flex is a game changer. It should completley change the workflow for how Amir tests speakers.