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A certain song triggers HP ERR of the DX3 Pro+

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May 31, 2022
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Hi, this is a bit of a curious observation i made.

I use a Hifiman HE400SE with a DX3 Pro+ and the two work together quite nicely, however everytime i try to listen to the song


even at relatively low volume, the amp shuts down with HP ERR


Doesn´t matter if the source is Tidal or Spotify, Amazon Music however is much lower Volume to begin with

Topping already adressed the Issue with a FW Update, V1.23, but my unit is new and came with that version.

what is going on with that song? i can listen to other stuff at perceived higher volume levels, and this issue is reproduceable, happens everytime at -9.5db High Gain
 
OP
S
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so it seems its an issue with low frequencies below 20hz, i applied a highpass filter 10hz Q 0.7 that resolved the issue.
combined with Amirs EQ it looks like this

High pass 10hz Q 0.7

Peak 20hz +6db Q 1.0

Peak 37hz +1.8db Q1.8

Peak 1950hz +4.5db Q 3.0

Preamp -6.5db
 
OP
S
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Read chapter “31.15 Digital DC Protection” page 68 and 69 in the RME ADI-2 DAC FS manual for an explanation.

man, this is a can of worms XD. I appreciate the link, and i´m glad something relatively convenient, like a HP filter can circumvent this. It´s weird that DACs don´t just offer this option by default
 

Frenchie

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Hello All i have solved my Hp Err issue by running equalizer APO and by using the filters that OP used to fix the same issue. im just posting this so less audio savy people can find this. the D.B gain settings can be left to user preferance however.
Screenshot_2.png


Link to Equalizer APO:




Hope you found this useful,

Frenchie


P.S: i use this for gaming, i had this issue when playing escape from tarkov and it fixed it without screwing with base game audio
 
Last edited:

asrUser

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It's only a workaround, but the manufacturer should still fix this.
 
OP
S
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Hello All i have solved my Hp Err issue by running equalizer APO and by using the filters that OP used to fix the same issue. im just posting this so less audio savy people can find this. the D.B gain settings can be left to user preferance however. View attachment 229299

Link to Equalizer APO:




Hope you found this useful,

Frenchie


P.S: i use this for gaming, i had this issue when playing escape from tarkov and it fixed it without screwing with base game audio
I have trouble understanding, why you post EQ settings with low frequency gain, without adjusting preamp, when my provided EQ was perfectly fine.

Don´t add gain without lowering preamp, especially as far as bass is concerned
 

Kryonyx

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I'm having an issue with Overwatch 2 triggering the HP ERR. Not sure how to get around this. I'm using the latest firmware and drivers.
 
OP
S
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I'm having an issue with Overwatch 2 triggering the HP ERR. Not sure how to get around this. I'm using the latest firmware and drivers.
do you mean you don't know how to use eq, like i described here? google equalizer apo and p.e.a.c.e. and follow a youtube tutorial to apply the eq values i provided
 

Lambda

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Maybe contact Topping they shuld be abel to fix it in firmware.
 

Kryonyx

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Yeah I guess its a bit of a weird issue. If I skip the DAC and plug the headphones directly into the computer, audio game audio can cut out in the middle of a game but voice chat (via the game) still works. I'm wondering if its a Dolby Atmos issue since I do have Dolby Access installed and Dolby Atmos for Headphones enabled. Which OW2 says it supports.
 
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