You won't need to mess with adapters. Your HD660 will work in high-impedance mode by default and your SE846 will have more than enough power in "normal device" mode (which will kick in because it has < 50 Ohm impedance). You'll be impressed with the background of the V30 on your SE846 - it's darker than that of the Hugo 2. Very clean-sounding amp. (Just watch out for the up-sampling issue with your SE846.)
I never use impedance adapters etc.. if I want to go to aux mode which would be the next mode up from hi-fi mode I always plug the cable to the phone first and attach the iem/hp to the cable second. Keep in mind this is not giving you better sound quality it is merely giving you more power to drive your gear.
'auto impedance detection' feature, I have seen this on several ESS 90x8 based phones, e.g. Vivo, Xiaomi, LG.
So, LG probably is just following industry standard practice. Which happen to be a stupid practice. They think they are smart enough, but actually they don't understand things.
I have also seen ESS 90x8 based phones that doesn't do auto detection, instead, allow user to set output gain mode, e.g. Meizu.
But Meizu has their own stupidity, they don't allow user to enable/disable HiFi mode (ESS DAC), instead they rely on a config file which stores the names of apps, for which HiFi mode should be turned on. (so, if your app is not in the list, you need to root the phone, and modify this config file)
All they want to do, is saving power, making the battery performance look better. High gain mode, and HiFi mode will consume extra power.
I agree, I prefer OS to expose this 'set output power' feature to users. Instead of doing auto detection.
If we can voice our opinion loud enough, maybe LG can change the OS.
From what I've seen elsewhere, it's a safety feature. They don't want people putting into high power modes with easy to drive headphones and blowing their ears out.
All cell phones are volume limited for the same reason, and since the v-series can output a LOT of juice, they're basically trying to play it safe.
I disagree, mostly because planars really need the power and don't have high enough impedance to trigger it, but maybe a root solution will happen.
Hi guys, I'm currently testing V30 on newest Neutron and have two questions.
In Audio Hardware, Generic Driver should be enabled I've heard but what about "Hi-Res Codec" and "Costom Format"? Also, any bes practice which digital filter to choose from Hi-Fi Quad DAC settings itself?
Thx!
Hi guys, I'm currently testing V30 on newest Neutron and have two questions.
In Audio Hardware, Generic Driver should be enabled I've heard but what about "Hi-Res Codec" and "Costom Format"? Also, any bes practice which digital filter to choose from Hi-Fi Quad DAC settings itself?
Thx!
From what I've seen elsewhere, it's a safety feature. They don't want people putting into high power modes with easy to drive headphones and blowing their ears out.
All cell phones are volume limited for the same reason, and since the v-series can output a LOT of juice, they're basically trying to play it safe.
It'll be interesting to see what Samsung are going to do with the S9, but the V30 has set quite a high bar for me to go back to a Samsung phone. I'd miss the V30's audio output.
BTW, there are other OEMs still producing smartphones with 3.5 mm sockets and quality DACs and amps. @yfei recently loaned me his Meizu Pro 5 (there's a small review and comparison against the V30 here: https://www.head-fi.org/threads/meizu-pro-5-smartphone.869792). I'd definitely recommend checking it out as either a smartphone or stand-alone DAP. Thanks again @yfei!
I honestly do think the S9 is gonna step up the game and end up with an output that's pretty damn high quality. I think the idea of the high-impedance/external mode is gonna go away, though.
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