Dec 1, 2017 at 9:47 AM Post #1,502 of 6,155
Is there a way to test if the Quad is actually being turned on? I'm having a bit of a concern as there's no perceptible audio difference with my Pinnacle P1, and given the high impedance there should be a NOTICEABLE difference.
You can definitely hear the difference between the Quad DAC being turned on or off.

Also, Tidal has the new Morbid Angel record in MQA. Time to headbang the day away.
 
Dec 1, 2017 at 10:31 AM Post #1,505 of 6,155
You can definitely hear the difference between the Quad DAC being turned on or off.

Also, Tidal has the new Morbid Angel record in MQA. Time to headbang the day away.

I've seen a couple of comments made about the DAC that aren't quite right. For example, I've heard it suggested that the quad DAC only switches on for higher sample rates or only for higher-impedance phones. Amp output power is a separate issue - this is automatically adjusted as a function of the headphone impedance. The quad-DAC is always active if you have it turned on (when you can see the highlighted HiFi DAC icon in settings). Even re-sampled PCM will go through that quad DAC.

Tidal is still a bit up in the air. It seems that it's possible to get MQA playback, but you need an external DAC that supports it, and you need something like UAPP that can send a bit-perfect stream via USB. It doesn't work (yet) directly via the Tidal Android app on the phone.
 
Dec 1, 2017 at 10:36 AM Post #1,506 of 6,155
I've seen a couple of comments made about the DAC that aren't quite right. For example, I've heard it suggested that the quad DAC only switches on for higher sample rates or only for higher-impedance phones. Amp output power is a separate issue - this is automatically adjusted as a function of the headphone impedance. The quad-DAC is always active if you have it turned on (when you can see the highlighted HiFi DAC icon in settings). Even re-sampled PCM will go through that quad DAC.

Tidal is still a bit up in the air. It seems that it's possible to get MQA playback, but you need an external DAC that supports it, and you need something like UAPP that can send a bit-perfect stream via USB. It doesn't work (yet) directly via the Tidal Android app on the phone.


I think there is a 2 DAC standard mode and a 4 DAC hifi mode.
 
Dec 1, 2017 at 11:32 AM Post #1,508 of 6,155
I dunno if you've held them in your hands, but the v30 is so much lighter than the Note 8 that it paradoxically feels more like a toy. It's weird, I can't even explain it. :beyersmile:

Regardless, I had a Note 8 and traded it in and got the v30. I trust LG in a lot of ways far more than I do Samsung. The only real loss is accessories.
The note 8 sound quality gets better with time. It has a 32 bit dac on the snapdragon chipset and a built in radio tuner also. Out the box the note 8 sounded just ok but after weeks of use it has opened up in clarity.
 
Dec 1, 2017 at 12:42 PM Post #1,509 of 6,155
You can definitely hear the difference between the Quad DAC being turned on or off.

Also, Tidal has the new Morbid Angel record in MQA. Time to headbang the day away.

Don't tell me what I can and can't hear man. That's why I'm asking if maybe something is screwy with my device in particular.

Two, Tidal on Android can't do MQA.
 
Dec 1, 2017 at 12:55 PM Post #1,510 of 6,155
Don't tell me what I can and can't hear man. That's why I'm asking if maybe something is screwy with my device in particular.

Two, Tidal on Android can't do MQA.


Look dude, I'm not telling you what to do. The 'you' was generalized. I own the P1s as well so I was replying to your comment.

And given that you've mentioned you listen to metal I was just mentioning the damn record is available. I know Tidal on Android doesn't play MQA.

Chill out.
 
Dec 1, 2017 at 12:59 PM Post #1,511 of 6,155
Don't tell me what I can and can't hear man. That's why I'm asking if maybe something is screwy with my device in particular.
I think you read something into his post that wasn't there. He wasn't being disrespectful. I read it as him trying to be helpful.

The issue you're facing is the amp output. I've noticed that too with one particular set of headphones. Now, I'm not advertising these as the world's best headphones, but I happen to own a pair of Bose TrueSound Ultra. (They're not as bad-sounding as you might think, based on the OEM.) Anyway, my point is, for whatever reason, the output on these (easy-to-drive) headphones is much lower than the output I get through my HD800S. I'm not sure why yet.

By any chance do your headphones have a trrs connector on the plug?
 
Dec 1, 2017 at 1:54 PM Post #1,513 of 6,155
There is definitely something amiss with the V30 Quad DAC not being fully utilised when enabling it.

When I plug in my headphones there is roughly a 50% chance it won't sound right. What I mean is it doesn't reach deafening sounds till 60.

But when I unplug and back again, it gets to deafening sounds at 40 and sounds like the DAC is actually being used.

I've only experienced this with Marshall Mode IEMs, but with two models, so it could just be an issue with the headphones.

I don't see the impedance being an issue as the IEMs are 39ohms, when people are stating 50ohms as the cut off.

Need to do more testing.
 
Dec 1, 2017 at 1:55 PM Post #1,514 of 6,155
Look dude, I'm not telling you what to do. The 'you' was generalized. I own the P1s as well so I was replying to your comment.

And given that you've mentioned you listen to metal I was just mentioning the damn record is available. I know Tidal on Android doesn't play MQA.

Chill out.

And I'm asking because there's not an audible difference, so I'm wondering if I've got something screwy in mine.

If you've got the P1s, tell me how loud you listen with them? Because I can put it on full 75 and it's still not even uncomfortable. That's concerning to me.
 
Dec 1, 2017 at 2:15 PM Post #1,515 of 6,155
I think @Jackpot77 probably nailed it in an earlier post. The amp just bases its output on detected impedance. If you have a low-sensitivity 49 Ohm headphone, it's not going to get as loud as a higher-impedance phone - especially one that is more sensitive. Just to reiterate though - this is an amp issue. It has nothing to do with the DAC.

There was a post earlier in this thread that might be helpful. I forget who posted it, but the suggestion was to plug in a high-impedance device and then quickly switch it out for your actual headphones. (If that person's reading this, can you re-post that suggestion in case I've described it poorly?) Of course, in an ideal world, one day LG would give us control over the gain stage of the V30 amp. In the real world, you might need to trick it by first plugging in a couple hundred ohm resistor first.
 

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