Database Users

Joying SQ

I've been reading mixed reviews on the SQ of these units. I've read about the mod and it sounded like the sound just got louder. But is the sound fine and just flat sounding or is it something else? I was thinking a line driver would help or maybe it would just amplify the noise. I have some decent audio equipment and I don't want to feel I'm not getting the full potential out of them. I do use some WAV and FLAC files. I guess I can't tell if people are commenting on the on board audio or from their amps hooked up to the RCAs.

I have a 2016 Jeep Wrangler Unlimited. I had the factory 430N head unit, with the base 8 speaker system. I replaced 4 of the 8 speakers with Kickers and add a Kicker sub and amp (amp is just for the sub), and it sounded better but still not great.
THis weekend I added a Joying Jeep specific unit, and I feel like the sound of the overall system is vastly improved. I think it sounds pretty good, I primarily use Google Play Music and Pandora.

CadillacMike said:
I have a 2016 Jeep Wrangler Unlimited. I had the factory 430N head unit, with the base 8 speaker system. I replaced 4 of the 8 speakers with Kickers and add a Kicker sub and amp (amp is just for the sub), and it sounded better but still not great.
THis weekend I added a Joying Jeep specific unit, and I feel like the sound of the overall system is vastly improved. I think it sounds pretty good, I primarily use Google Play Music and Pandora.
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Did you add a line driver at all to bump up the voltage on the pre-outs?

splxtreme said:
Did you add a line driver at all to bump up the voltage on the pre-outs?
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I did not add anything. The sub and amp are built for Jeep, so it might be a little weird:
http://www.kicker.com/SWRA411

have any of you measure the pre-out voltage on the joying? On my tonghai create 2nd gen unit, pre-out voltage is only 1V. What this means is you will have a high noise floor going into your amplifier. Then your amp will amplify any noise your pre-outs have picked up. So if you use a line driver to raise the pre-out voltage prior to going into your amp, the higher voltage actually LOWERS the noise floor, hence eliminating noise that your RCAs may pick up.
My advice is you MUST have a line driver if you plan to use these units w/ a external amp. The difference will be night and day, particularly in the higher frequencies, where amplified noise is more pronounced.
They are dirt cheap too. I bought one on amazon for ~$30. It is actually a 3-way cross-over/line driver combo. It feels cheap but does it's job as a line driver very well.
edit: I say the above from personal experience, as I literally spent months trying to figure out why my tweeters always sounded so terrible. Line driver did the trick. Now I have clean highs and more clear, vibrant mids. I don't seem to notice much difference in my bass, so apparently noise interference isn't audible in the lower frequencies.

explain "line driver" to a stupid dumb dumb person, not me of course, just so other people understand

CadillacMike said:
explain "line driver" to a stupid dumb dumb person, not me of course, just so other people understand
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line driver is just another word for a voltage step-up device. It's simply a way to increase the voltage of the RCA pre-outs coming out of your HU. Most amplifiers can read all the way down to about .5V pre-outs no problem. So a low pre-out voltage isn't much of a problem in theory.
But, an amplifier is also a voltage step-up device. It's going to take the pre-out voltage and multiply it by a pre-determined amount. You can adjust that amount by modifying gain. Your speakers are rated for a certain RMS power (80W for instance). So, if your speakers are 4 ohms rated for 80W RMS, the formula for the voltage it needs from your amp is sqrt(80 * 4) = 18V. So for your speaker to get the full rated power, it needs at least 18V from your amp. Higher pre-amp voltage = easier to reach the rated output to your speakers, since less gain is required.
Also, I mentioned noise floor. It's explained well here -
http://www.glasswolf.net/papers/preouts.html
It's not so easy to explain in laymans terms, but just know that higher voltage pre-outs = higher signal to noise ratio (SNR), meaning more signal & less noise = lower noise floor.
The article does mention however that having too high of a pre-out voltage is not good either, as it can lead to clipping. Best to buy an adjustable line driver (the $30 amazon model I bought had this feature... this one -
https://www.amazon.com/SX310-Pre-Am...70255121&sr=8-1&keywords=electronic+crossover). Most devices that accept pre-outs max out at around 6V, some as low as 4V. So don't crank up the line driver to max... I leave mine around 75-80%.
Hope that helps.

Lg v20 and 600 ohm headphones

Hi, has anybody listened to the v20 on 600 ohm headphones?. Is the phone able to drive such high impedance headphones properly, is the volume Loud and clear? Thank you

If it isn't able to, try Hi-Fi Quad DAC

You need to know the sensitivity of the headphones, not just the impedance to really know for sure if they will get to a listenable volume. Without knowing more it's impossible to say. It's definitely not putting out enough power to get any 600 ohm headphone to it's full potential, even if volume is decent

any benefits to USB C headphones?

Just watching the htc u11 coverage and the noise cancelling type c headphones. Would it increase the experience on devices like the axon 7 when we've still got a headphone jack ?

front firing speakers said:
Just watching the htc u11 coverage and the noise cancelling type c headphones. Would it increase the experience on devices like the axon 7 when we've still got a headphone jack ?
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shouldn't it be the same? I don't think there would be a difference besides the noise cancelling. Maybe those headphones get the power for that stuff from the USB but some noise cancelling 3.5mm with battery should be the same...?
Otherwise the only way I can think of to test if they're better or worse is by modding them so that the noise cancel is off, and test with USB-C then put them a 3.5 jack and test them too.
But you won't be able to charge, for what it's worth
Please correct me if I'm wrong, I probably am anyways

The audio wouldn't​ use the device's amp and dac and so the audio could be better on phones with really bad dacs and amps but on phones like the Axon 7 and LG v20 then the audio would most likely be worse.

You get an audio that is the same and more objective across devices because the headphones uses its own dac and amp, so the headphones can be better tuned by the manufacturer because your player no longer matter. Also, the power supply from type-c enables active noise cancelling without battery such as JBL reflect aware c, HTC usonic of U11, Xiaomi active noise cancelling earphones.
However, senny is probably correct as usb-c earphones may not use high end dac and amp.

Dac's are only connected to 3,5mm jack, stereo speakers and probably to microphone (to be confirmed) so there will be no Dolby features with type c headphones.
There one advantage - if you have active noice cancelation they can be powered via USB type c the same time you keep using it.

MrMD69 said:
Dac's are only connected to 3,5mm jack, stereo speakers and probably to microphone (to be confirmed) so there will be no Dolby features with type c headphones.
There one advantage - if you have active noice cancelation they can be powered via USB type c the same time you keep using it.
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Dolby seems to work with BT speakers (tested this myself), so it might affect usb-c headphone. Mins toy it's just the equalizer that worked not the HiFi mode

gumbyx84 said:
Dolby seems to work with BT speakers (tested this myself), so it might affect usb-c headphone. Mins toy it's just the equalizer that worked not the HiFi mode
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Hmm it works like equalizer or like much clearer, better audio ?

MrMD69 said:
Hmm it works like equalizer or like much clearer, better audio ?
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Equalizer

With the excellent DAC/AMP and audio capabilities of the Axon 7, I don't really see the benefit of USB-C headphone. And as I'm nor sure if the USB-C headphones would bypass the built in DAC/AMP it may be worse, I don't know. Either way I don't really see an advantage. Of course you loose the ability to listen to music while charging.
If Audeze comes out with a USB-C version of their Cipher cable that has a built in DAC/AMP tuned for their specific headphones (EL-8, Sine, iSine), then that might actually be worth getting. But as of yet the Cipher cables is Apple Lightning port only and their headphone are expensive audiophile grade headphones.

RojasTKD said:
their headphone are expensive audiophile grade headphones.
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And THIS will be the problem with type C headphones... Any that are cheap won't have good audio, you're gonna have to spend a small fortune on headphones that sound like the ones that are supplied free with the phone now...

ultramag69 said:
And THIS will be the problem with type C headphones... Any that are cheap won't have good audio... you're gonna have to spend a small fortune on headphones that sound like the ones that are supplied free with the phone now...
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That's not a problem with USB-C headphones, it the nature of cheap headphones.
ultramag69 said:
you're gonna have to spend a small fortune on headphones that sound like the ones that are supplied free with the phone now...
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Why? Usually the headphones that are included for free now aren't very good sounding.Who going to pay a fortune for headphones that sound as bad as the standard offerings?
If USB-C becomes they way things go for headphone audio, which remains to be seen, you'll have a range of choices of various price point. Only those that want truely steller audio will spend a "fortune", just as it is now.

senny22 said:
The audio wouldn't​ use the device's amp and dac and so the audio could be better on phones with really bad dacs and amps but on phones like the Axon 7 and LG v20 then the audio would most likely be worse.
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RojasTKD said:
That's not a problem with USB-C headphones, it the nature of cheap headphones.
Why? Usually the headphones that are included for free now aren't very good sounding.Who going to pay a fortune for headphones that sound as bad as the standard offerings?
If USB-C becomes they way things go for headphone audio, which remains to be seen, you'll have a range of choices of various price point. Only those that want truely steller audio will spend a "fortune", just as it is now.
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I think ultramag means we need to pay a fortune to get a headphone with dac and amp as good as the ones inside our phones.

themostunique said:
I think ultramag means we need to pay a fortune to get a headphone with dac and amp as good as the ones inside our phones.
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Eh, I don't know. If you refering to a high quality DAC/AMP like whats in the Axon 7 maybe not cheap but not a fortune either. But most phones have a mediocre audio out put in comparison. I sometimes use headphones with an $15 external Mpow Bluetooth receiver that delivers more power then my other phones (Nexus 6P & LG G5). There's always the USB-C to 3.5mm adapter that the few phones that don't offer a headphone jack come with. Of course lets not forget most devices still bring a headphone jack, and hopefully it will stay that way for a while.
At any rate as far as the original question posed in this thread, a USB-C headphones will not really being anything to the table as far as the Axon 7 is concerned as it has one of the top headphone jacks currently available.
Until someone offers a very high quality USB-C pair of headphones that can outperform the A7's built in solution it's not needed. Even if and when something like that becomes available it only for you average user, but those who really really care about their audio and are willing to pay for every last bit of it.
I just don't see it costing a fortune, unless you want REALLY REALYY good audio, pretty much as is the case today.

Help in Purchase decision

Guys I need your valuable opinion about the audio dac on this for NORMAL earphones like RHA s500. does it feel lot different as of compared to other phones on normal earphones or do we need High impedance headphone ?
Am in dilemma of purchase decision
Am a music lover

Getting fed better audio should benefit most decent headphones. Of course the higher quality headphones will see the most benefit and take full advantage of the V20's audio capabilities. You don't need high impedance to take advantage of the quad DACs capabilities. It just delivers more "juice" to higher impedance headphones that require more power to drive. Some specific lower impedance headphones may do better if you could manually turn on the high output mode, my Audeze iSine 10s for example, but in general it will be fine for most earphone out there.
Just tested my Axon 7 (also a with a high quality DAC/AMP on board) vs My LG G5 (standard built in audio) with some cheap but pretty good sounding earphone ($10 to $15 KZ ZST ). I can sounds cleaner and voices are a little "sweeter". It more noticeable with my more expensive gear.
If you're into audio the V20 or Axon 7 are the phones to get, but there should be other reason to select a phone as well. Unless you really really desire superior audio, I wouldn't make my buying decision based solely on that.
I can hear a difference. It clearer sounding and vocals are a bit sweater. If you not big into audio it may be a bit subtle, at least at first.

what are the good earbud options t at doesn't have hissing with Mi A1 ?

so i like the phone and i don't want to return it just cuz of that , so i decided to buy better earbud , what are my options? ear buds that lies deep inside ear and not HeadPhones that goes around it .. i want to know the best suggestions that prices aren't that high and have no hissing .. thanks in advance .

I'm currently using Faaeal Narcissus and I don't hear any hissing sounds. It costs $27 at Aliexpress, but if you want something cheaper, I suggest you try the 64 ohm variants which you can get for as low as $8. I assume that these 64 ohm ones would have very minimal to no hissing.

LALS96 said:
I'm currently using Faaeal Narcissus and I don't hear any hissing sounds. It costs $27 at Aliexpress, but if you want something cheaper, I suggest you try the 64 ohm variants which you can get for as low as $8. I assume that these 64 ohm ones would have very minimal to no hissing.
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thanks for your suggestions , do you have some link for them?

NVM5282 said:
thanks for your suggestions , do you have some link for them?
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Here's Faaeal's official store at AliExpress aliexpress.com/store/2178200?spm=2114.search0104.3.14.LPdCMB

My last year's Xiaomi Piston II's don't have any hiss. But neither do the cheap ones in the box of my old P9 lite...
Both were like reborn plugged in to the Mi A1, great sound for the price!

Xiaomi Hybrid Mi In-Ear Pro HD, no hiss at all.

I think any over the ear headphone with impedance greater than 32 ohm will have any issue

On another threat it said that even Apple Ear Pods (45 ohms) experience some hissing. Apparently the higher the better, it should support up to 600 ohms.
Consider that another headset might have inferior sound quality, depending on how good your current cans are (and some very good headphones have some very low impedance). So even if you get rid of the hissing, you might pay a price in overall quality.

invertedchicken said:
On another threat it said that even Apple Ear Pods (45 ohms) experience some hissing. Apparently the higher the better, it should support up to 600 ohms.
Consider that another headset might have inferior sound quality, depending on how good your current cans are (and some very good headphones have some very low impedance). So even if you get rid of the hissing, you might pay a price in overall quality.
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Apple ear pods connect via Bluetooth. Not via 3.5mm jack.

alkesh95 said:
Apple ear pods connect via Bluetooth. Not via 3.5mm jack.
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Nope, that would be Apple AirPods
The Ear Pods are just their fancy name for the cheap regular headphones you get with any iPhone.