It's easy to force high impedance mode.
I've got a set of headphones with a detachable 1/8" jack at both ends, but you can use a splitter and an extra 1/8" double male plug cable as well.
I use the 1/8" cable and connect my v20 to another cell phone or tablet headphone jack. It immediately goes into high impedance. I unplug only the end going into the other phone and plug that end into my headphones. As long as the cable stays plugged into the v20 it stays in high impedance mode
If your headphones don't have a detachable cable, it'll still work with a splitter and a cable that has male 1/8" plugs at both ends.
Using the splitter, plug your splitter into the v20. Use the double 1/8" jack cable to connect the splitter to a phone or tablet. Once it's in high impedance mode, unplug the cable from both ends and connect your headphones to the splitter. Don't remove the splitter plug from the v20. As long as the splitter stays plugged, you'll be in high impedance mode and get more power into your headphones
Ok...what is the use of high impedance?
Sid 6.7 said:
It's easy to force high impedance mode.
I've got a set of headphones with a detachable 1/8" jack at both ends, but you can use a splitter and an extra 1/8" double male plug cable as well.
I use the 1/8" cable and connect my v20 to another cell phone or tablet headphone jack. It immediately goes into high impedance. I unplug only the end going into the other phone and plug that end into my headphones. As long as the cable stays plugged into the v20 it stays in high impedance mode
If your headphones don't have a detachable cable, it'll still work with a splitter and a cable that has male 1/8" plugs at both ends.
Using the splitter, plug your splitter into the v20. Use the double 1/8" jack cable to connect the splitter to a phone or tablet. Once it's in high impedance mode, unplug the cable from both ends and connect your headphones to the splitter. Don't remove the splitter plug from the v20. As long as the splitter stays plugged, you'll be in high impedance mode and get more power into your headphones
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its just wasted a time, and change nothing on everything you hear. look, high impedance automatically triggered only if you put headphone with 50 ohm above. you know why? because regular phone or music player only could deliver impedance with range 15-30ohm. while lg v20 like any other DAP with external amplifier could support from 50-600 ohm. even with 250 ohm headphone if you put on regular phone it would only run on 30 ohm max. and same goes to your phone, even with your v20 or any DAP player which support 50ohm impedance above, if you connect to low impedance headphone it would only run on your max headphone impendance. its not something you could force to work.
alldine345 said:
its just wasted a time, and change nothing on everything you hear. look, high impedance automatically triggered only if you put headphone with 50 ohm above. you know why? because regular phone or music player only could deliver impedance with range 15-30ohm. while lg v20 like any other DAP with external amplifier could support from 50-600 ohm. even with 250 ohm headphone if you put on regular phone it would only run on 30 ohm max. and same goes to your phone, even with your v20 or any DAP player which support 50ohm impedance above, if you connect to low impedance headphone it would only run on your max headphone impendance. its not something you could force to work.
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Bro I agree with you. I have used 60ohms headphones and 45ohms headphones with my Lg V20. With 50hms and above, we can see "high impedance headphones connected" in settings.but nothing improved in sound quality. So doing force high impedance is unnecessary.
sbacham said:
Bro I agree with you. I have used 60ohms headphones and 45ohms headphones with my Lg V20. With 50hms and above, we can see "high impedance headphones connected" in settings.but nothing improved in sound quality. So doing force high impedance is unnecessary.
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check your audio files first, make sure you have lossless audio like flac or dsd. for flac i recomended using song with 24bit/96khz. if you playing with stock lg music player you'll see there is "hifi" icon on the selected song. join audiophile comunity for more reference. and for headphones , well.. there are many type, some headphone have flat bass, more vocal, etc. choose one which suits you and the music you played. from what i got while browsing on auido/video community, there are 3 main requirements for best audio experience:
1. good drivers aka player like DAP/AMP or our beloved LGv20 which support impedance above 50 ohm
2. lossless audio files like flac, dsd/dsf which support hifi system
3. good headphone with high impedance that has many feature depends on your need. some people love high bass, while other prefer clear vocals, etc
lg v20 is a good drivers, its not the best but its good if you dont wanna spend another 150-250$ on music player with dedicated amplifiers.
High Impedance Workaround
I was thinking the same thing on an easy workaround, so I bought a $3 splitter, plugged in my AKG headphones which pulls up high impedance, then plugged the B&O earbuds. (that came with my V20)Then unplugged the AKG's and it remained in high impedance mode. Doing that, if you turn the volume up higher than 75%, you'll probably pop an ear drum. It gets waaay loud and clean!
Frodar
H910
Why not just use my mod and forget about extra cables?
NVM.. Just read no root. Sorry folks.
Sent from my LG-LS997 using Tapatalk
I never said it improved quality. I understand how DACs and amps work.
The reason for high impedance mode.... If you have headphones with less than the 50ohm threshold, high impedance mode increases power output from the amp. The result.... On low impedance headphones you get more power which means higher volume output.
I have a set of V-moda Crossfade LP cans that are less than 50ohm. On the regular power level, max volume of 75 still lacks a couple decibels for my preference. When I trip high impedance mode I am able to reach a higher volume level and I usually don't need to go higher than 60.
frodar56 said:
I was thinking the same thing on an easy workaround, so I bought a $3 splitter, plugged in my AKG headphones which pulls up high impedance, then plugged the B&O earbuds. (that came with my V20)Then unplugged the AKG's and it remained in high impedance mode. Doing that, if you turn the volume up higher than 75%, you'll probably pop an ear drum. It gets waaay loud and clean!
Frodar
H910
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Exactly... Higher volume output. I didn't say it improved quality, as others are arguing.
sbacham said:
Ok...what is the use of high impedance?
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Look at my last post.....
Triggering high impedance mode and then connecting low impedance headphones will give you more amp power which equals higher volumes. Does nothing about increasing quality just higher volume threshold. But only if you trigger high impedance and THEN connect LOW impedance headphones
This mod worked with a splitter in my v20. Thanks @Sid 6.7. wow listening to low impedance headphones at high power is a fun. Great workaround.
Related
Hello,
I am looking forward to buying a decent headphone. The headphone's impedance is 47 Ohms. Usually, the lower the impedance, the less the trouble of powering it properly. Obviously, 47 Ohms in above the average impedance of earphones. So can someone here with a set of headphones with impedance close to 47 Ohms try it with the HAM2 and see if it gets properly powered.
Thanks.
I own Sennheiser HD 598, and even though the large connector requires an adapter to fit into the small headphone port of the phone, I did try it, and found the max volume to be just 20% shy of where I'd like my louder music to be. These headphones supposedly are 50ohms.
Hey guys,
I would like to know, how I get rid of the "normal audio device" mode. I had connect Teufel Massive reloaded and the included headphones but it shows in the HIFI settings only "normal...".
Best,
Kalle
I believe those headphones have a removable cable, correct? If so, try unplugging the cable from the headphones, plugging just the cable into the phone, and only then plugging the cable into the headphones. This should trick the phone into "Aux" mode, which functions in the same way as high impedance mode.
For low impedance headphones without removable cable (or if the above doesn't work with your cable), buying a headphone jack extender like this works:
http://smile.amazon.com/gp/product/B00ZK43S4Q?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00
Same procedure, plug in the jack extender without your headphones connected, then attach your headphones. Should display aux mode indication in the settings
Normally the amp only kicks on for full power with headphones that have an impedance of 50+ ohms, but the above trick should work. I've also read about another workaround involving making a phone call (like to your voicemail) then plugging in your headphones, but I could never get it to work, so the above method seems more reliable
unbeliveable - this works. Danks!
Has anyone figured out if you can use the phone as an "external DAC", use the ESS DAC but in a "line-out" mode for connection to a stereo via analog cable to their stereo line inputs? I tried using it normally, and the DAC showed as enabled, but the quality was not as impressive as I had hoped (in comparison to my Marantz UD5007 when playing a standard red book CD via it's analog output to the same input on my stereo).
thanks!
TinCanFury said:
Has anyone figured out if you can use the phone as an "external DAC", use the ESS DAC but in a "line-out" mode for connection to a stereo via analog cable to their stereo line inputs? I tried using it normally, and the DAC showed as enabled, but the quality was not as impressive as I had hoped (in comparison to my Marantz UD5007 when playing a standard red book CD via it's analog output to the same input on my stereo).
thanks!
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What kind of cable did you plug in? LG set it up to limit the DAC based on the cable plugged in, I'm assuming they did this as most users probably use earbuds and the DAC at full power would probably damage most earbuds. And I've found in my car, plugging the aux cable in when its not plugged into anything enables the DAC at full power. I didn't discover this, some on headfi did.
I'm using a 3.5mm to stereo RCA cable into the line inputs on my stereo. The phone shows the HiFi DAC as being enabled but it is not in Hi Gain mode, and I get the HiFi volume adjustment levels when I change the volume. So basically the same as when I use it with my IER's, but not Hi Gain mode like when I plug in my Sennheiser HD580's. Which is fine, but I'm wondering if I can bypass the amp while still using the better DAC.
thanks!
On the V10 in order to have the DAC in permanent high impedance mode you simply modified the Mixer-Path.xml. I look for that file in the V20 system dump and couldn't find it. I was wondering if one or some of the great minds here at xda could search the system dump to locate the V20 Mixer-Path.xml or find a file that if modified would provide the same results when we get root. Thanks on advanced.
Sent from my LG-H918 using Tapatalk
i don't seem to have an issue with high impedance headphones, i have a pair of Sony xba-h1 that have a ridiculous (for earbuds) 40 ohm impedance and they work wonderfuly. is there a reason you're trying to force it into high impedance mode?
nyterage said:
i don't seem to have an issue with high impedance headphones, i have a pair of Sony xba-h1 that have a ridiculous (for earbuds) 40 ohm impedance and they work wonderfuly. is there a reason you're trying to force it into high impedance mode?
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Yes I want to use the full power of the amp on my low impedance rha ma750. I don't have to crank the volume as high and the sound is richer and crisper. [emoji2]
Sent from my LG-H918 using Tapatalk
Would it be safe to use the high impedance mode for headphones which are not high impedance? My Bose headphones trigger the mode naturally but I wonder for my other headphones.
Sent from my LG-H990 using Tapatalk
Until you find a software workaround, plug a splitter into the phone first. Then plug your device of choice into the other end of the splitter. This tricks the DAC into going into high-impedance mode.
prinzhernan said:
Would it be safe to use the high impedance mode for headphones which are not high impedance? My Bose headphones trigger the mode naturally but I wonder for my other headphones.
Sent from my LG-H990 using Tapatalk
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Lot of factors go in to that. The risk is up to the people who try it.
Nihonno said:
Until you find a software workaround, plug a splitter into the phone first. Then plug your device of choice into the other end of the splitter. This tricks the DAC into going into high-impedance mode.
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That is aux mode not high impedance mode. You have normal (low) impedance, then aux mode (mid) impedance then high impedance ( max power). I'm shooting for maximum power. [emoji2]
Sent from my LG-H901 using Tapatalk
Bump for this. Id love to see a high impedence mod. If someone could point me in the general direction to start looking on how to create some sort of mod, id love to try and see if i could mess around with it. Not sure how similar LG Nougat vs Samsung Marshmallow is...
There's a good amount of risk in doing that. You're forcing higher voltages normally reserved for drivers with higher resistance. Lower the driver resistance and your current draw on the opamps can hurt the device or fry your low impedance drivers if the gauge wire to the drivers isn't large enough. I don't really see the point in this mod. Any quality DAC is going to be able to drive low impedance hard enough. If your buds aren't loud enough, get better headphones. Just my. $0.02
I force mine into high impedance mode by using an inline sliding volume control, set to minimum when I plug in. It puts 470 ohms in series with my inefficient headphones. Slide it back to full volume after plugging in and I have 1.8V rms high impedance mode.
I too would like a software fix for this.
jagwap said:
I force mine into high impedance mode by using an inline sliding volume control, set to minimum when I plug in. It puts 470 ohms in series with my inefficient headphones. Slide it back to full volume after plugging in and I have 1.8V rms high impedance mode.
I too would like a software fix for this.
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Could you post a link to what you are using (like on amazon)?
GermanGuy said:
Could you post a link to what you are using (like on amazon)?
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Not really. I got it in a shop in Hong Kong. If it is an analogue knob or slider then it could work.
jagwap said:
I force mine into high impedance mode by using an inline sliding volume control, set to minimum when I plug in. It puts 470 ohms in series with my inefficient headphones. Slide it back to full volume after plugging in and I have 1.8V rms high impedance mode.
I too would like a software fix for this.
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Hmmm good idea
Sent from my LG-H918 using Tapatalk
I'm pretty damn sure that if LG believed driving the amp at 100% power, even for low impedance headphones, were a good thing, they would have done it.
My SE846 IEMs use the low power mode. They sound fantastic. You are not doing yourself any benefit by trying to trick the amp into a high power mode, especially by using some piece of crap adapter. If anything, that is going to degrade quality.
Nitemare3219 said:
I'm pretty damn sure that if LG believed driving the amp at 100% power, even for low impedance headphones, were a good thing, they would have done it.
My SE846 IEMs use the low power mode. They sound fantastic. You are not doing yourself any benefit by trying to trick the amp into a high power mode, especially by using some piece of crap adapter. If anything, that is going to degrade quality.
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Not sure why these guys are trying it, considering the promotion comes with $150.00 earphones.
Sent from my LG V20 using XDA Labs
Nitemare3219 said:
I'm pretty damn sure that if LG believed driving the amp at 100% power, even for low impedance headphones, were a good thing, they would have done it.
My SE846 IEMs use the low power mode. They sound fantastic. You are not doing yourself any benefit by trying to trick the amp into a high power mode, especially by using some piece of crap adapter. If anything, that is going to degrade quality.
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Yes, but your SE846 are sensitive. Other headphones may not be. My Sine headphones need nearly x10 the voltage to reach the same volume. Portable headphone with this low sensitively and low impedance are rare, so LG did not cater for it. But they did allow for it with high impedance headphones, which are typically less sensitive.
jagwap said:
Yes, but your SE846 are sensitive. Other headphones may not be. My Sine headphones need nearly x10 the voltage to reach the same volume. Portable headphone with this low sensitively and low impedance are rare, so LG did not cater for it. But they did allow for it with high impedance headphones, which are typically less sensitive.
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The high impedance mode says it activates at 50 ohms and above. Unless your headphones are above 50 ohms, and somehow not activating it, you're wasting your time.
Nitemare3219 said:
I'm pretty damn sure that if LG believed driving the amp at 100% power, even for low impedance headphones, were a good thing, they would have done it.
My SE846 IEMs use the low power mode. They sound fantastic. You are not doing yourself any benefit by trying to trick the amp into a high power mode, especially by using some piece of crap adapter. If anything, that is going to degrade quality.
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Click to collapse
Nitemare3219 said:
The high impedance mode says it activates at 50 ohms and above. Unless your headphones are above 50 ohms, and somehow not activating it, you're wasting your time.
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I'm really not. They are 24 ohms and I get the power I need in high impedance mode.
I thought they were 18 ohms?
mrwinkle13 said:
On the V10 in order to have the DAC in permanent high impedance mode you simply modified the Mixer-Path.xml. I look for that file in the V20 system dump and couldn't find it. I was wondering if one or some of the great minds here at xda could search the system dump to locate the V20 Mixer-Path.xml or find a file that if modified would provide the same results when we get root. Thanks on advanced.
Sent from my LG-H918 using Tapatalk
Click to expand...
Click to collapse
/system/etc/mixer_paths_tasha.xml try there.
What is the mod please? I want to add it to my ROM
DUNU 200ohm adapter with KZ ZS3 headphone is decreasing sound. I just got the DUNU 200 ohm impedance adapter but after I connect it to the mobile and then KZ ZS3 headphone sound is very small though it is showing now high impedance mode. Please help me out. even I tried another normal headphone, it's the same. Without the adapter, it was okay with normal mode. But it should trigger the high impedance mode with an adapter, right?
Shekhar Thapa said:
DUNU 200ohm adapter with KZ ZS3 headphone is decreasing sound. I just got the DUNU 200 ohm impedance adapter but after I connect it to the mobile and then KZ ZS3 headphone sound is very small though it is showing now high impedance mode. Please help me out. even I tried another normal headphone, it's the same. Without the adapter, it was okay with normal mode. But it should trigger the high impedance mode with an adapter, right?
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200 ohms is over kill. You only need anything over 50 ohms.
ChazzMatt said:
200 ohms is over kill. You only need anything over 50 ohms.
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i brought the following Connector for my LG V30 plus, it is only reducing the volume that means reducing the Noise actually. i brought 75 ohms connector to trigger the HIM on my LG, but not happening. What should i do? any suggestion plz help me out. is there any option i should enable?
https://www.aliexpress.com/item/DUNU...156c4c4daUmwis
---------- Post added at 04:45 PM ---------- Previous post was at 04:44 PM ----------
Shekhar Thapa said:
DUNU 200ohm adapter with KZ ZS3 headphone is decreasing sound. I just got the DUNU 200 ohm impedance adapter but after I connect it to the mobile and then KZ ZS3 headphone sound is very small though it is showing now high impedance mode. Please help me out. even I tried another normal headphone, it's the same. Without the adapter, it was okay with normal mode. But it should trigger the high impedance mode with an adapter, right?
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I too have this problem bro, if you found any solution plz share with me.
https://www.reddit.com/r/lgv30/comments/9y7qye/why_you_shouldnt_force_high_impedance_mode_on_lg/
Much better discussion here.
https://forum.xda-developers.com/lg-v30/help/modes-quad-dac-t3690567
But any solution
JohnFawkes said:
https://www.reddit.com/r/lgv30/comments/9y7qye/why_you_shouldnt_force_high_impedance_mode_on_lg/[/QUOTE
what is the solution? there is a discussion but no solution.
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Shekhar Thapa said:
JohnFawkes said:
https://www.reddit.com/r/lgv30/comments/9y7qye/why_you_shouldnt_force_high_impedance_mode_on_lg/[/QUOTE
what is the solution? there is a discussion but no solution.
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The solution is dont use adaptors. Buy high impedance headphones
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Why other says it worked for them?
JohnFawkes said:
Shekhar Thapa said:
The solution is dont use adaptors. Buy high impedance headphones
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This solution, of course, I know but want to use my in-ear old earphones with full sound. There is a forum in XDA where many say it works for them. which adapters works like charm?
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JohnFawkes said:
Shekhar Thapa said:
The solution is dont use adaptors. Buy high impedance headphones
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Click to collapse
Seriously, that is not really a solution... High impedance headphones simply mean they need more power to drive them, hence the DAC provides more channels to support the gear. If you want more power to your lower impedance gear, LG should have provided a way to enable channels upon demand. They didn't, because it can be a pitfall (see below). Sometimes, 32 to 60 ohm gear really gain from the 25% increase of kicking in the second channel, as opposed to higher impedance which will just eat up that power and not give more oomph.
The DAC increase triggers around 75 ohm or while in Aux mode... My technique for non-root phones is to add an 3.5mm extension, plug in a high impedance adapter/headphones (75 ohm+), unplug adapter, plug in earphones in extension. There's the double-stack extensions (Plug in two in a row to trigger Aux mode), but I haven't had much success with this, worked only sporadically.
However, I strongly recommend simply rooting and flashing a DAC enabler mod. It's much easier to deal with... If most of your gear is under 75 ohm, that second channel will provide 25% more power. Only thing is: Very sensitive gear might not like more power. So be careful. I've known people with gear lower than 32 ohm blow their earpiece with a V30 at high impedance mode.
If you wanna test out triggering different DAC levels, download Hi-Fi status off the play store. It'll pop up a toast notification telling you in which mode you are as you trigger the modes.
**edit** if ever you want a 75 ohm adapter, I have one I'm not using... Depends where you live, I could send it your way.
---------- Post added at 04:43 PM ---------- Previous post was at 04:26 PM ----------
Also, it's normal that your 200 ohm adapter decreases the sound quality of your gear if you plug in the adapter and then plug in your IEM's in it... Think of the impedance adapter as adding a bunch of ping pong balls in a corridor... When you walk through it, it'll be much longer to get across. Your 200 ohm impedance adapter is like adding basketballs in this corridor instead of ping pong balls. The adapter gobbles up most of the extra power given by the DAC, so your gear gets none of it.
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karendar said:
JohnFawkes said:
Seriously, that is not really a solution... High impedance headphones simply mean they need more power to drive them, hence the DAC provides more channels to support the gear. If you want more power to your lower impedance gear, LG should have provided a way to enable channels upon demand. They didn't, because it can be a pitfall (see below). Sometimes, 32 to 60 ohm gear really gain from the 25% increase of kicking in the second channel, as opposed to higher impedance which will just eat up that power and not give more oomph.
The DAC increase triggers around 75 ohm or while in Aux mode... My technique for non-root phones is to add an 3.5mm extension, plug in a high impedance adapter/headphones (75 ohm+), unplug adapter, plug in earphones in extension. There's the double-stack extensions (Plug in two in a row to trigger Aux mode), but I haven't had much success with this, worked only sporadically.
However, I strongly recommend simply rooting and flashing a DAC enabler mod. It's much easier to deal with... If most of your gear is under 75 ohm, that second channel will provide 25% more power. Only thing is: Very sensitive gear might not like more power. So be careful. I've known people with gear lower than 32 ohm blow their earpiece with a V30 at high impedance mode.
If you wanna test out triggering different DAC levels, download Hi-Fi status off the play store. It'll pop up a toast notification telling you in which mode you are as you trigger the modes.
**edit** if ever you want a 75 ohm adapter, I have one I'm not using... Depends where you live, I could send it your way.
---------- Post added at 04:43 PM ---------- Previous post was at 04:26 PM ----------
Also, it's normal that your 200 ohm adapter decreases the sound quality of your gear if you plug in the adapter and then plug in your IEM's in it... Think of the impedance adapter as adding a bunch of ping pong balls in a corridor... When you walk through it, it'll be much longer to get across. Your 200 ohm impedance adapter is like adding basketballs in this corridor instead of ping pong balls. The adapter gobbles up most of the extra power given by the DAC, so your gear gets none of it.
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I think I should root it. I have ordered Sennheiser HD570 with over 65-75 ohm impedance. Let me check it first. I also have hifi status app. hope it will help me. thanks.
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I got Sennheiser hd570 with 64ohm. It shows high impedance...but still not much drive from dac...it has same output as normal mobile..why??sound is better as it is better headphone but loudness is not there.