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Fiio Q5s Portable DAC & THX Headphone Amp Review

PeteL

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#61
Meh, I'd much rather THX respond and how they granted such label..

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Also, the HELL is that god awful filter choice?
The thing is, THX business model is not the same as it was. It used to be a certification tag for home theatre audio, now it just means FIIO paid their licence and use their amplifier circuitry in their products, I don't thing they have a say about what's being done with it. That being said, these measurments don't suggest that there is a problem with the THX Amp, it doesn't make anything worst, the problems are upstream unless I'm missing something.
 
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amirm

amirm

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Thread Starter #63
Add: Heck, I thought linearity is supposed to correlate with harmonic distortion according to EE lecture (HD coming from non-linearity) but the gap between SINAD and linearity result here is pretty huge.
Linearity test *as we run* is a special one. It filters everything other than the generator tone so that it only captures the output voltage and almost nothing else. For this reason it is immune to distortion and noise (unless the noise lands right at the test frequency). If you don't do the filtering, then noise dominates and you get an exponentially rising graph for just about every DAC making the test useless.

In that sense, it presents a far more optimistic view of the DAC performance. My use of it is simply to show that the DAC produces correct voltages especially as we go below 16 bits where accuracy may get lost.
 

Lbstyling

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#64
THX certification holds no credibility or value if this device passes the bar.

What a sad affair. I wonder how many people have purchased a THX certified item and relied on it to mean a basic if not assumed high standard has been met.

Shameful. Utterly shameful. Should be illegal.

Someone is sat on an island sipping Mai Thais and laughing because they charge people for a sticker.
 

PeteL

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#65
THX certification holds no credibility or value if this device passes the bar.

What a sad affair. I wonder how many people have purchased a THX certified item and relied on it to mean a basic if not assumed high standard has been met.

Shameful. Utterly shameful. Should be illegal.

Someone is sat on an island sipping Mai Thais and laughing because they charge people for a sticker.
See my previous comment, THX is not a certification. The HiRes Audio label is tough, looks like this one is not hard to pass
 

Lbstyling

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#66
THX certification holds no credibility or value if this device passes the bar.

What a sad affair. I wonder how many people have purchased a THX certified item and relied on it to mean a basic if not assumed high standard has been met.

Shameful. Utterly shameful. Should be illegal.

Someone is sat on an island sipping Mai Thais and laughing because they charge people for a sticker.
See my previous comment, THX is not a certification. The HiRes Audio label is tough, looks like this one is not hard to pass
The problem is that whatever it is, it is perceived as one, and they know it.
 

PeteL

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#67
The problem is that whatever it is, it is perceived as one, and they know it.
If you want, but that is exactly why the right information should be pointed. THX sells populated pcb amplifier modules, like AKM sells dac chips, you buy the module you do whatever you want with it. It's not THX fault if the people's perception is based on the wrong information.
 

Veri

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#68
See my previous comment, THX is not a certification. The HiRes Audio label is tough, looks like this one is not hard to pass
Considering the Super slow filter, yeah HiRes is a joke to pass :p
 

bobbooo

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#70
If you have to listen on the go, use a phone and a dongle.
Or just a phone (if it has a headphone jack, which are thankfully making a comeback with quite a few manufacturers). Most modern smartphones are likely transparent within the limits of audibility anyway.
 
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A Surfer

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#71
It is too much to ask Amir to test with Bluetooth I suspect. I wouldn't care if he kept my Q5s longer. I almost exclusively used Bluetooth as my connection type. Frankly a good set of Bluetooth headphones and any one of many smartphones with well implemented Bluetooth out is all that you need. I use my LG G7 with Onkyo HF Player and either my Sony XM3 (bass mess corrected via HF Player's eq) or the KEF Spaceone Wireless. That is great for portable use, but I will say that I did enjoy the Q5s/AM3D combination with the Edition X V2 quite a bit so despite the measurements I will still say publicly that I have been able to enjoy the Q5s. I never used the line out or it as a DAC mind you,
 
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#72
Dammit...I just bought an M11, I relied on Fiio's published measurements....looking the Fiio's data on the Q5, it also looks good....I like the features of the M11, but it they are misleading on the measurements, I don't want to give them my business...I'm thinking of returning the M11....
 
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#74
I wasn't questioning that Fiio has made some really good products.

It is about my expectation when considering something for which there are no measurements. Before my assumption was "Competently made, at least good enough", now I would wait for measurements before considering a purchase.
 

Dmitri

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#75
I wasn't questioning that Fiio has made some really good products.

It is about my expectation when considering something for which there are no measurements. Before my assumption was "Competently made, at least good enough", now I would wait for measurements before considering a purchase.
And that folks, is both the advantage and the frustration of this site. Now that I’ve discovered ASR, I’m even more jaded about other reviewers. If Amir hasn’t tested it, I’m afraid to buy it.
 

Asylum Seeker

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#77
Or just a phone (if it has a headphone jack, which are thankfully making a comeback with quite a few manufacturers). Most modern smartphones are likely transparent within the limits of audibility anyway.
Headphone jacks never really went away. Today still a good three fourths of smartphones released in 2020 still have a headphone jack.
 

bobbooo

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#78
Headphone jacks never really went away. Today still a good three fourths of smartphones released in 2020 still have a headphone jack.
Yep, I was thinking about some of the big names who dropped headphone jacks in recent years though - Samsung, Google, Sony etc. The last two have now brought them back, and I suspect Samsung will follow suit in the future, and realise that following Apple's lead will just mean they'll have nothing to differentiate themselves with.
 
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DivineCurrent

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#79
I like how literally the day after I bought the Q5s, this was posted. Ugh, I should have just stuck with the Q1 MKII, but this looked so tempting with more power and features. If it sounds worse I may return it, but I won’t be using the line out.
 
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#80
I like how literally the day after I bought the Q5s, this was posted. Ugh, I should have just stuck with the Q1 MKII, but this looked so tempting with more power and features. If it sounds worse I may return it, but I won’t be using the line out.
You probably won't hear it. To me the biggest issue is the lack of power out of the single ended output. I bought a AM5 module to fix this, but since I got the BTR5, I haven't even bother with the Q5s.
 
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