Yes, they meant the OPA2140 in that circuit is highly sensitive and will likely keep failing. Replacing with AD8620 along with increasing the output impedance corrects this weakness. Can confirm have been using my repaired DX3Pro daily for 2 years since the repair and it's been rock solid.
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Review and Measurements of Topping DX3Pro DAC and Headphone Amp
- Thread starter amirm
- Start date
Yes, they meant the OPA2140 in that circuit is highly sensitive and will likely keep failing. Replacing with AD8620 along with increasing the output impedance corrects this weakness. Can confirm have been using my repaired DX3Pro daily for 2 years since the repair and it's been rock solid.
mejobloggs
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Been using a speaker setup for a few years but moved into an apartment with close neighbors all around so dug out my DX3 Pro.
Can't find the remote, can I change gain without remote?
Can't remember anything about the DX3 Pro, lol... do I just plug and play? Any Windows config required?
I mainly just play games with k612 Pro headphones. Some youtube music. Do I need to download drivers from Topping website? Or just go with Windows default?
Seems pretty loud. I've set it to -40 db is that normal?
252 pages... had a quick scan through. I see mentions of firmware updates but links don't work anymore. Looked on Topping website and can't see any firmware for DX3 Pro, only Pro+. Anyone know where I can find latest firmware?
Probably questions asked a million times sorry but this is a huge thread and didn't spot the info I was looking for
Cheers
Can't find the remote, can I change gain without remote?
Can't remember anything about the DX3 Pro, lol... do I just plug and play? Any Windows config required?
I mainly just play games with k612 Pro headphones. Some youtube music. Do I need to download drivers from Topping website? Or just go with Windows default?
Seems pretty loud. I've set it to -40 db is that normal?
252 pages... had a quick scan through. I see mentions of firmware updates but links don't work anymore. Looked on Topping website and can't see any firmware for DX3 Pro, only Pro+. Anyone know where I can find latest firmware?
Probably questions asked a million times sorry but this is a huge thread and didn't spot the info I was looking for
Cheers
Veri
Master Contributor
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Windows default is generally fine. And yeah sure
mejobloggs
Member
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Doesn't work... Thanks...
I found a copy of the manual online but most of my questions not answered in the manual.
Seems tpdz have almost scrubbed all their website of DX3 Pro and replaced with the Pro Plus
The only real question you asked is "Can you/How to adjust gain without a remote??". This is clearly answered in the manual. Yes you can do it. Go into Settings Menu (Tips 1B below); press knob until you see the Gain setting ... turn knob to change value to 0 or 9db.
The DX3Pro manual is actually better than the DX3Pro+ manual such that it specified correctly how you get into the settings menu by unplugging/plugging the power plug w/ the knob pressed.
I thought I found the perfect budget DAC for me, until I discovered that there were/are so many problems with this product.
Does it still have circuitry issues that end up with giving 10V DC for some random units?
Does this volume button still behave like this and make this horribly annoying noise? IMHO it would be a real shame to release a product that doesn't even register volume changes properly, not even mention the noise it does. It ruins the whole experience.
Maybe for some countries, 200$ is peanuts money, but for my country, it's half of the average salary.
Does it still have circuitry issues that end up with giving 10V DC for some random units?
Does this volume button still behave like this and make this horribly annoying noise? IMHO it would be a real shame to release a product that doesn't even register volume changes properly, not even mention the noise it does. It ruins the whole experience.
Maybe for some countries, 200$ is peanuts money, but for my country, it's half of the average salary.
SimpleTheater
Addicted to Fun and Learning
Can you switch from headphone output to speakers without the remote using the volume knob? I simply can't find the right number of clicks to make it happen. If so, please let me know how. Thanks.
Double click headphones + speaker, double click headphones, double click speakers. It cycles.
Boltman92124
Active Member
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- Feb 14, 2023
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Topping doesn't seem to have a support forum I know about. My DX3Pro + is fine except now it's not playing music from Blue Tooth from my Android. Phone says it's connected. Topping says it's connected at 96khz. No sound. It worked fine the first day?? All other dig inputs are dandy!
????
????
aka_Z
Active Member
Did you try to increase volume on the phone? Or both, Topping and the phone. It could be that bt volume on the phone is too low or off.
Jimster480
Major Contributor
You can send them an email and they normally reply pretty quickly.
My DX3Pro+ has a stable BT connection with two Android phones. Works well with LDAC.
Boltman92124
Active Member
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Worked with another phone so not the Topping. First phone did work before though. Connection is there in LDAC and no sound from phone speakers. Hmmm...
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