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Topping D30Pro Review (Balanced DAC)

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Isn’t having a volume control on a DAC like having a volume control on a turntable or CD player?

I don’t get it.
There are a number of situations where a volume control on a DAC is useful. E.g., the toslink output on all smart TV's I know is fixed volume. So if you're going Smart TV->DAC->active speakers, that's how you control volume.
 

bennetng

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So I guess this is where the discussion starts if some aliasing above 20 kHz or a frequency response 35 dB down at 20 kHz is to be preferred...
That's called imaging instead of aliasing and it happens above 22.05kHz rather than 20kHz. BTW I wonder why the stopband is 21kHz rather than 22kHz, perhaps a limitation of the programmable filter settings? Anyway, the most popular ~0.55fs stopband filter is still there, as well as the NOS one so that others can use it with their own software upsampler, should be no more compliant I suppose.
 

JohnYang1997

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That's called imaging instead of aliasing and it happens above 22.05kHz rather than 20kHz. BTW I wonder why the stopband is 21kHz rather than 22kHz, perhaps a limitation of the programmable filter settings? Anyway, the most popular ~0.55fs stopband filter is still there, as well as the NOS one so that others can use it with their own software upsampler, should be no more compliant I suppose.
oops.
 

MGG

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There are a number of situations where a volume control on a DAC is useful. E.g., the toslink output on all smart TV's I know is fixed volume. So if you're going Smart TV->DAC->active speakers, that's how you control volume.
Just go with Smart TV (headphone-out)->active speakers, it's usually good enough and allows you to use TV's remote for volume controle. I don't get why people are obsessed with DACs, pretty much any DAC is good enough.
 
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Just go with Smart TV (headphone-out)->active speakers, it's usually good enough and allows you to use TV's remote for volume controle. I don't get why people are obsessed with DACs, pretty much any DAC is good enough.
I don't really do "good enough". :):cool:
 
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I realized that this is using the quad array of the cirrus CS43198. The new iBasso flagship DAP, the DX300, implements that very solution as well. Quite interesting since it's a bit of an odd duck DAC chip. From what I have garnered thus far, however, that particular DAP is excellent.
 

AudioSceptic

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That's called imaging instead of aliasing and it happens above 22.05kHz rather than 20kHz. BTW I wonder why the stopband is 21kHz rather than 22kHz, perhaps a limitation of the programmable filter settings? Anyway, the most popular ~0.55fs stopband filter is still there, as well as the NOS one so that others can use it with their own software upsampler, should be no more compliant I suppose.
I did wonder about that. Seems odd not to get closer to 22k if you can, and move the "corner" closer to 20k.
 
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