OP
- Thread Starter
- #21
I think they would have if people had not complained so much about the original DX3 Pro.
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Topping DX7 Pro DAC and Headphone Amp Reviewed
- Thread starter amirm
- Start date
Ok, I see, really hard to use my balanced 50 Ohm planars in such case...
BTW, did you already get M500 that was sent ?
OP
- Thread Starter
- #23
Has not arrived yet.
OP
- Thread Starter
- #24
If their impedance is flat with respect to frequency as it should be, it won't be an issue.
Amir, do you have any idea or guess why the original low output impedance of the 1st version DX3 Pro is related to the stability issue?
Dahmmm ... what kind of turtles deliver that package? ))
Not sure if it is.. have to check, Monoprice M1060
OP
- Thread Starter
- #28
I think in some cases it would short out so they now put resistors in the output to avoid the amp seeing such a low load.
So, with 114 impedance and a flat WRT frequency I shouldn't have any problem? Said another, will it be exceptionally good? 
I kind of wish they skipped the mediocre built-in headphone amp and kept the price lower. What's the point to bundle a SOTA DAC with a just "okay" amp and force the people to pay for the feature they will likely never use?
Mr. Olinad
Member
Trying to understand the absolute quality of the headphone amp section. If I understand correctly, SNR @ 50 mV is the key real-world measure, i.e., where we will be listening to actual music. With that measure, the DX7 Pro is about 80.6, at the margin of tier 1 and tier 2 https://www.audiosciencereview.com/...asurement-comparison-charts.8246/#post-207213
So, my questions:
1. Did I get that right? If not, pls point me in a better direction on how to compare to the SOTA and is any difference at this level of excellence audible?
2. Will balanced output make any difference? (perhaps 2-3 dB better?)
So, my questions:
1. Did I get that right? If not, pls point me in a better direction on how to compare to the SOTA and is any difference at this level of excellence audible?
2. Will balanced output make any difference? (perhaps 2-3 dB better?)
OP
- Thread Starter
- #35
Correct.So, with 114 impedance and a flat WRT frequency I shouldn't have any problem? Said another, will it be exceptionally good?
Balance will make it worse because there is no attenuation for noise so you end up with sqrt 2 times the noise with when volune kept the same.
Very sensitive iems will make the noise audible. Only at the level of rme you can't hear the noise. Below that you may hear with some iems.
I'm totally fine with a D7 Pro and $50 less price tag.
OP
- Thread Starter
- #38
No. That is the level you may use with a very sensitive IEM. That is the only time that measurement matters.
Hmmm, I'm looking at the THD+N% v Power graph and at every point the SINAD is a little better with Balanced, so what am I missing?
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