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Topping DX5 II

ziggurcat said:
I think because it's pretty much gain-dependent. I seem to recall that there's a loose "rule of thumb" to set the output gain from the source (if possible) at around 80% instead of 100%, which would probably solve a lot of the DC protection kicking in for people.
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ziggurcat said:
Oh, sure, but that's not exactly what I was saying. The DC protection kicking in is very clearly gain-dependent, which is why rolling back Spotify's output resulted in that person being able to crank the volume, and not trigger the protection.
Click to expand...
What do you mean by gain? If the output level is the same, gain should not matter.

I tried the Imogen Heap track at 24/44.1 on Qobuz and it behaves the same as others have reported for Spotify on FW1.57 on FW1.62 it does not activate. It seems that it does not depend on the output but rather on the input before volume control. If they monitor signal the same way the do for the FFT it goes through an auxiliary DAC and into an ADC and hence probably does not have the same volume setting as that is likely done in the DAC chips. Since the device already knows the volume setting, if this is a software function and the odd behavious seems entirely to be software related, it can be fixed straightforwardly and maybe has been in FW1.62. I have however reverted back to FW1.57 due to the serious issues with FW1.62.
 
I did some more testing using the same track. The YouTube video below from 2:40 to 3:00 does not trigger it as it has its volume lowered by 4.2 dB (See Stats for nerds > Volume). Lowering the system volume by 4.06 dB while volume is full in Qobuz also does not trigger it. At -2.0 dB, it triggers briefly at 2:59 but does not at -2.25 dB.
 
JIW said:
I did some more testing using the same track. The YouTube video below from 2:40 to 3:00 does not trigger it as it has its volume lowered by 4.2 dB (See Stats for nerds > Volume). Lowering the system volume by 4.06 dB while volume is full in Qobuz also does not trigger it. At -2.0 dB, it triggers briefly at 2:59 but does not at -2.25 dB.
Click to expand...
Is it possible to bypass the DC protection in settings or it must be always on?
 
If it’s useful to anybody this will work on Windows 7. I still use it for Media Center.

Topping Tune works, but will fail to install a bundled driver. If you download Topping’s last Windows 7 compatible driver that recognizes this device as well. It also works with Topping Tune.

DFU for firmware update also appears to work, but I had no need to update so I can’t confirm a successful transfer.
 
Has anyone noticed that after installing the 1.62 firmware update, the unit is A LOT cooler?
 
jonwb said:
Has anyone noticed that after installing the 1.62 firmware update, the unit is A LOT cooler?
Click to expand...

Not in my experience because my computer keeps waking it up.
 
By the way, the reason why I was scrolling through this thread and searching for a direct link to the firmware update was that I just realised the gain setting doesn't affect the line out of my Toping Dx5 II at all. I'm not sure if it has at any point, since today was the first time I tried to change the gain when in Line Out All -output mode. Anyone else having this same problem?

I've done factory reseat, it didn't help. Configured everything again, line out is set in preamp mode and the volume knob works. When listening from HP-out (single ended) the gain affects it just as it should. But when listening via the line out from my nearfield monitors, changing the gain changes nothing. Bought the unit about three weeks ago, the firmware is V1.49.
 
Yersinia Bestmate said:
By the way, the reason why I was scrolling through this thread and searching for a direct link to the firmware update was that I just realised the gain setting doesn't affect the line out of my Toping Dx5 II at all. I'm not sure if it has at any point, since today was the first time I tried to change the gain when in Line Out All -output mode. Anyone else having this same problem?

I've done factory reseat, it didn't help. Configured everything again, line out is set in preamp mode and the volume knob works. When listening from HP-out (single ended) the gain affects it just as it should. But when listening via the line out from my nearfield monitors, changing the gain changes nothing. Bought the unit about three weeks ago, the firmware is V1.49.
Click to expand...
The gain setting is for the headphone amplifier, no the line out. I think this is 'normal' behaviour for a DAC/Amp. If the gain controlled both the HP and pre-amp outputs, you could be in for some nasty surprises when switching between them.
 
Berwhale said:
The gain setting is for the headphone amplifier, no the line out. I think this is 'normal' behaviour for a DAC/Amp. If the gain controlled both the HP and pre-amp outputs, you could be in for some nasty surprises when switching between them.
Click to expand...
At least in my Topping A70 Pro the gain affects all the of outputs. The same goes with the L70. But they are hp amps. The gain affected the line outs of my previous dac/amp SMSL DL200. I therefore find it very odd if this would be normal but it in fact can be the case here. Just realised that in the Dx5II manual it reads "Gain (Headphone gain)". Really weird, I'll have to ask from the retailer also. I'd need the high gain with my NF monitors.

By the way is the firmware version V1.62 available anywhere?

edit: added the mention about dl 200
 
Yersinia Bestmate said:
By the way is the firmware
Click to expand...

Yersinia Bestmate said:
At least in my Topping A70 Pro the gain affects all the of outputs. The same goes with the L70. But they are hp amps. The gain affected the line outs of my previous dac/amp SMSL DL200. I therefore find it very odd if this would be normal but it in fact can be the case here. Just realised that in the Dx5II manual it reads "Gain (Headphone gain)". Really weird, I'll have to ask from the retailer also. I'd need the high gain with my NF monitors.

By the way is the firmware version V1.62 available anywhere?

edit: added the mention about dl 200
Click to expand...

Manually edit the url below and change 1.57 to 1.62. They pulled it for a reason, so I’d be hesitant to just flash it for no reason.

https://dl.topping.audio/usermanual/DX5_II_FW1.57.zip
 
Thanks! I'll wait as well for now. This going back and forth with the firmware update is frustrating. So did they release an unverified and potentially harmful update and then just delete it from the website without any information?
 
To add: is it possible to flash the 1.57 to my Dx5II as it now has 1.49 installed, and would it have any benefits (regarding to fixed bugs etc) or should I just keep the 1.49?
 
Yersinia Bestmate said:
Why on earth..
Click to expand...

Some people have had the FW brick their DX5 IIs, so they have pulled the FW (probably) until they resolve that big problem.

Yersinia Bestmate said:
To add: is it possible to flash the 1.57 to my Dx5II as it now has 1.49 installed, and would it have any benefits (regarding to fixed bugs etc) or should I just keep the 1.49?
Click to expand...

1.57 should be safe to install.
 
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