Wiim announce WiiM Amp Ultra

[bh69]

2/ Wiim upscales to 32bit to give you plenty of volume attenuation before any audible effects. You can ignore the science if you like.

32b has no effect on output, it only gives more computing space.

 

[Matt_Holland]

32b has no effect on output, it only gives more computing space.

It gives you 16bits of volume attenuation (96dB) leaving 16bit audio resolution in tact.

 

[bh69]

No, I think it doesn't work this way. 32b is only for internal DSP. And there is still limit of 20-22dB usable range due to electronic noise.

 

[Ropeburn]

No, I think it doesn't work this way. 32b is only for internal DSP. And there is still limit of 20-22dB usable range due to electronic noise.

Even if it worked like you think (which it doesn't), and you'd end up with 10-12 bit at 55dB listening level, that's still wouldn't be problematic, because guess what, the dynamic range of 10 and 12 bit is 60-72dB which exceeds the listening level comfortably.

 

[bh69]

Even if it worked like you think (which it doesn't), and you'd end up with 10-12 bit at 55dB listening level, that's still wouldn't be problematic, because guess what, the dynamic range of 10 and 12 bit is 60-72dB which exceeds the listening level comfortably.

I'm pretty sure it works so And it's not about dynamic range. Analog control makes analog "compression", amount of detail is not reduced, reduced is only "scale" of sound. In oposite digital control works like cutting of information - amount of detail is reduced. Only question is, if human hearing is able to detect this.

 

[Ropeburn]

It still doesn't work like this with 32bit volume control, but let's assume it does for a moment: you'd be surprised how good 12 bit already sounds even at loud listening level. It's noticeably worse with higher quantisation error than 16bit, but surprisingly little. At very quiet listening levels, the difference virtually vanishes. It's the nature of these relations between resolution and level. And don't forget that the resolution of your ears isn't infinite either.

 

[bh69]

don't forget that the resolution of your ears isn't infinite either.

yes, it's what I have mentioned too

 

[Steven Holt]

No point linking to his site, he blocks it, because he is such a mature adult.

That guy is such a dick, he thinks he knows everything about this hobby, he's always right, and he can't take any criticism at all. Instead of trying to learn from someone, he sees them as a threat.

 

[Karmacoma]

That guy is such a dick, he thinks he knows everything about this hobby, he's always right, and he can't take any criticism at all. Instead of trying to learn from someone, he sees them as a threat.

You just defined narcissism

 

[unpluggged]

no myth - to get 55dB for quiet listening I need -60d = 10b, even with HQ DAC with noise under 20-22b it will reduce digital data to 10-12b

If you don't hear any noise then you don't have an SNR problem. And if you don't hear it at 0 dBFS, you won't hear it at −60 dBFS, either.

 

[bh69]

I've thought it over and done the math, and if I'm not mistaken, the noise really starts to raise somewhere around -70/-80dB of digital regulation (if I count that the DAC has a noise floor of around 120dB). So noise is not really a problem.

But if regulation subtract 10-12 bits from 24 bits (output D/A converter), only 12-14 bits remain. This information is losed. This must result in a reduction of fidelity (we are not dealing with noise).

 

[unpluggged]

only 12-14 bits remain

Of dynamic range, yes. Which is already plenty (74 to 84 dB) since your ambient noise is much higher than your reproduction system's noise floor. If it's not, and you can hear the system's noise floor through your speakers, then something is wrong with your gear.

This must result in a reduction of fidelity (we are not dealing with noise).

Define "fidelity". The only reduction is of the perceived dynamic range, which is reduced with volume attenuation regardless of the implementation thereof.

 

[somebodyelse]

I've thought it over and done the math, and if I'm not mistaken, the noise really starts to raise somewhere around -70/-80dB of digital regulation (if I count that the DAC has a noise floor of around 120dB). So noise is not really a problem.

But if regulation subtract 10-12 bits from 24 bits (output D/A converter), only 12-14 bits remain. This information is losed. This must result in a reduction of fidelity (we are not dealing with noise).

Any information lost is quieter than the noise. Since you say the noise is not really a problem (you can't hear it) then you couldn't hear anything that's been lost either.

 

[Soniclife]

I've thought it over and done the math, and if I'm not mistaken, the noise really starts to raise somewhere around -70/-80dB of digital regulation (if I count that the DAC has a noise floor of around 120dB). So noise is not really a problem.

But if regulation subtract 10-12 bits from 24 bits (output D/A converter), only 12-14 bits remain. This information is losed. This must result in a reduction of fidelity (we are not dealing with noise).

From Wiim - Our volume table is 8-bit, and considering the maximum bit-depth is 24-bit, we employ 32-bit processing for volume control to avoid any loss in precision.

From the Wiim Ultra review thread, it's not an issue.

 

[Descartes]

Any idea on the price?

 

[Audionaut]

Any idea on the price?

I assume it will be a little cheaper than adding up the individual prices of Vibelink and Ultra.
I'm guessing in the region of 630 to 670 euros.

 

[Descartes]

I assume it will be a little cheaper than adding up the individual prices of Vibelink and Ultra.
I'm guessing in the region of 630 to 670 euros.

Thank you but without AirPlay 2 no thanks

 

[Karmacoma]

I assume it will be a little cheaper than adding up the individual prices of Vibelink and Ultra.
I'm guessing in the region of 630 to 670 euros.

I say 600€

 

[kyuu]

I say 600€
View attachment 452809

599!

 

[ZinMe]

It appears to be a WiiM Amp Pro with a display and an 2nd TI TPA3255. So $379 + $170? = $549? Unless there are other major goodies I'm missing?