With that volume control could this be used as a no frills preamp? Enough power to drive speaker amps in balanced mode?
I'm guessing what they're referring to is the ES9038Q2M's MCLK.Clock Mode............Adjustment?
There is a reference to adjusting the “clock” mode. I would very much appreciate being pointed towards some reference information to follow up on this.
Thanks for the info, that is a nice option to have. I kept my K501 alive for years with soldering but I don't feel like voiding my warranty right away at this point, maybe laterIt's pretty easy to modify the K712 for use with balanced Amps. You can punch out the 3pin mini XLR connector and just glue in a 4pin mini XLR connector instead. The mod is completely seamless, though you'd have to source a 4pin mini XLR balanced cable somewhere. Those are not readily available.
I'm guessing what they're referring to is the ES9038Q2M's MCLK.
A higher MCLK results in less noise, but more high-order harmonics:
View attachment 114602
That measurement was done by user IVX.
Have you checked their manual and video guide already? Those should explain how to operate the menu.And, still, any notion about how to access these modes?
I have no idea. I went into the menu and kept turning the knob until it switched and took a measurement. I suspect it wrapped around to the first one eventually. It is incredibly hard to navigate this device.Which filters correspond to which on the graph? You have 8 results but there are only 7 selectable filters (page 11 of the manual).
Ah, this would be excellent. They already have a way to talk to the device to update its firmware. Wonder if they could use it to update settings.but even here one would wish for a PC interface for the settings.
Have you checked their manual and video guide already? Those should explain how to operate the menu.
Unfortunately the volume knob only controls the headphone jack outputs. You could connect a power amp to one of the headphone outputs of course.With that volume control could this be used as a no frills preamp? Enough power to drive speaker amps in balanced mode?
»driving » speaker amps require no power, it needs voltage, unfortunately we do not have max output voltages in this review, , let’s assume that the 4V balanced, 2V unbalanced on line outs equate 0 dBFS, but that would be an assumption and no proper spec sheet to be found in a quick search. If you ask me personally, I like to see more available voltage for something to be considered a proper preamp, but many people are happy feeding directly a power amp with these references, if the gain of the amp is sufficient.With that volume control could this be used as a no frills preamp? Enough power to drive speaker amps in balanced mode?
I think this confirms 4/2Vrms as the max output:»driving » speaker amps require no power, it needs voltage, unfortunately we do not have max output voltages in this review, , let’s assume that the 4V balanced, 2V unbalanced on line outs equate 0 dBFS, but that would be an assumption and no proper spec sheet to be found in a quick search. If you ask me personally, I like to see more available voltage for something to be considered a proper preamp, but many people are happy feeding directly a power amp with these references, if the gain of the amp is sufficient.
Edit: an other contributor mentioned no volume control on line outs... odd, so not a preamp at all...
Hey Scooby Doo, we found a clue! Now where is this Tone2, hmm?Compatibility:
- Tone2 Pro
- Tone2
Yes, there isn’t any reference to clock mode adjustment as far as I can tell!Have you checked their manual and video guide already? Those should explain how to operate the menu.
Anyway, there is innovation on the back side as we have discussed before in the form of an RCA jack that can be used with an adapter cable to get balanced out as well:
View attachment 114513
Hopefully you can see the inner ring inside which gives you the third pin. Connector has a qualify look to it. I don't think you could have both balanced and unbalanced in this size package with any other option.
For one, the Lotoo S1 has far worse SINAD of around 100-102 dB compared to the 117-118 dB of the Khadas Tone2. They are in totally different realms of measured performance.Can't really see the advantage of this one over 'premium dongles' with similar power like the Sparrow or the Lotoon S1. Creative Xfi Amp delivers also 370mW at 32Ohm and 55mW at 300 Ohm and has volume control buttons at half the cost.
The thing is, the W2 is not available and it will very likely cost more. True, the W1 is available (not to be confused with the W2 charts that are also mislabeled with W1 in their chart images). The W1 measures at 105-109db unbalanced and 113db balanced which is a tad less than the Tone 2. The W1 already goes for $200 at HiFiGo. The W2, being the higher end model of the two, will likely go for a bit more. I'm assuming $300-$400--and I am very likely lowballing here seeing that Luxury & Precision sells $4000+ PMPs--with less features than the Tone 2.The Luxury&Precision W2 is reaching 119dB SINAD: https://www.l7audiolab.com/f/information-update-of-lp-w2/
Based on what I saw, I think you may be confusing SNR with SINAD in their charts. Plus, there I am seeing some crazy things in the decibel range from 106, 100, low 70s, and even 7 (what the heck?!) for the SINAD. In summary, there are some pretty funky numbers going on there that calls their testing methodology into question. The only 110+ dB numbers I saw at your link appear to be SNR which is not SINAD. Recall that Amir's testing showed sub-100dB SINAD for the Meizu HiFi. Similarly, he found ~100dB SINAD for its Pro older brother. That's in a totally different, minor league from the Tone 2 Pro's major league performance.The Meizu HiFi (116.8) and HiFi Pro (116.0) get pretty close, provided that you have clean 5V: https://zhuanlan.zhihu.com/p/94991395
The 9038D is between 117.5 and 118.5: https://e1dashz.wixsite.com/index/9038d
Why not use 196Khz with all DACs? this would move the "problem" far outside the audible range.
The filter can also be better (especially if the dacs filter is bad like in this case) and the user can decide what filter/up sampler/ditter to use.One would have to upsample the files yourself and the used filter in the upsampler could be worse than the one in the DAC's digital filter itself.
Not relay problematic is also not perfect and not as good as it could be.The 24kHz low pass (when steep enough) isn't really problematic when using music. It can be on the test bench.
Yes of cause196kHz doesn't exist b.t.w. it is 96kHz or 192kHz
Oh i thought bluray is 192khz.and most video 48kHz