cirodts
Headphoneus Supremus
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- Jan 27, 2016
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thanks, quantity 1 means 1 valve or a couple of valves?A few posts up the thread...
https://www.head-fi.org/threads/lox...nformation-on-this-thing.903733/post-16554259
thanks, quantity 1 means 1 valve or a couple of valves?A few posts up the thread...
https://www.head-fi.org/threads/lox...nformation-on-this-thing.903733/post-16554259
thanks, quantity 1 means 1 valve or a couple of valves?
I see a lot of people in this thread have modified the opamps on their p20. Currently, does a tutorial exist breaking down how to do this?
Hello, everyone! Brand new poster here, and I just bought my first ever DAC+amp combo in the form of the Loxjie P20 and the SMSL Sanskrit. The Sanskrit sounds excellent on its own, but it's not as loud as I think it could be with the amp.
Cliffnotes on my issues with the Loxjie P20 amp on Day 1:
- The problem is that on top of the amp being a pre-owned unit from Amazon, I finally received some unbalanced connectors for the amp and they sound quite horrible.
- When I plug in only one of the two RCA cables into the input of the P20 amp, I get a much better soundscape, but I never get a proper output when both of the RCA cables are plugged in. Everything sounds distorted and good chunks of the sound seem to be omitted entirely.
- I got an aftermarket power supply for the Loxjie P20 amp, rated at 12V and 5A of power. Neither it nor the original power supply seem to have any influence on the problem I am experiencing.
- I wish I knew how to properly use the balanced output on the P20 amp, but have no idea whether it will work with either my Razer Blackshark headphones which I own now, or the Beyerdynamic DT 900 PRO X's I just ordered a few weeks ago for that matter.
Any advice or feedback from the regulars on this thread would be greatly appreciated! I'm still very happy with my DAC, but I am considering refunding or exchanging this amp as I suspect that it's defective but I cannot diagnosed the balanced connections so that I can be sure.
I've never used my P20 on unbalanced configuration. From day 1, I've always used it fully balanced, from my DAC to my headphones.I've tried swapping the tubes to no avail. I'll have to order a cable in order to use the balanced input, so I'm forced to use the unbalanced input for now.
can i still take advantage of this "better" balanced sound by simply using something like RCA --> XLR adapters and running them into the Loxjie P20 inputs? Not really. Balanced DACs have a higher output than non-balanced, and the circuit of the amp would need a balanced line level (using an adapter cable would not change this). There are cheaper balanced DACs like the Khadas Pro, ifi Zen DAC, and others that will all out perform what you have.Okay so there is really not much out there on the Loxjie P20. There's a few out there that have given really high regards to this thing, and i feel like it deserves a good discussion. (TL;DR: just read the bold stuff)
The main thing i want to know is regarding the balanced in/out. I DON'T want this to descend into a balanced argument thing. The point is that nearly every reviewer has mentioned how the balanced is noticeably better on this thing. I personally don't care about balanced - it's not something i need or care about. HOWEVER. It seems like the circuitry/electronics/whatever in this specific amp is somehow better than the unbalanced.
What i want to know is this - can i still take advantage of this "better" balanced sound by simply using something like RCA --> XLR adapters and running them into the Loxjie P20 inputs? The balanced output thing is relatively cheap/easy, but i'm definitely not spending balanced DAC money anytime soon. Is it just the balanced OUTPUT that gives this benefit? Do i need to even run balanced into it to benefit?
Question 2: [Loxjie P20 owners ONLY] - does this make a good first real amp for the HD6xx? I know that a JDS Atom is a "safer" choice, but i kind of want something interesting and different, which leads me to...
Will this still give me SOME amount of the benefit of tube despite being hybrid? The warmness, light distortion, and soundstage/reverb type of effect that people talk about? Reviewers seem to think that it.
It would also give me an upgrade path if i DID want to eventually buy a balanced DAC.
I had this problem with a Bravo Ocean amp. That only has one tube. I tried about six different tubes. Several worked fine. The rest had exactly the problem you're experiencing. I haven't had this problem with my two Loxjie P20 units.I've tried swapping the tubes to no avail. I'll have to order a cable in order to use the balanced input, so I'm forced to use the unbalanced input for now.
I'll most likely be returning it, although to get one from outside Canada could be a potential nightmare -- I was given an ETA of August 10th by Amazon if I were to buy a new one instead of the pre-owned I did buy. I do have a pair of tubes that I bought from AliExpress as well as a balanced-to-3.5mm adapter which are both on the way now. If those do not work, then I'll most certainly be returning this unit and buying a new one instead.I had this problem with a Bravo Ocean amp. That only has one tube. I tried about six different tubes. Several worked fine. The rest had exactly the problem you're experiencing. I haven't had this problem with my two Loxjie P20 units.
You have a circuitry problem in your amp, or you have tubes that aren't working correctly in the amp. The best test is to try a bunch of P20 compatible tube pairs that are well matched to each other. But that kinda defeats the purpose of a nice cheap P20.
Just making sure: You've double checked your setting on the Input and Output menus? Via the multi-function volume knob.Hello, everyone! Brand new poster here, and I just bought my first ever DAC+amp combo in the form of the Loxjie P20 and the SMSL Sanskrit. The Sanskrit sounds excellent on its own, but it's not as loud as I think it could be with the amp.
Cliffnotes on my issues with the Loxjie P20 amp on Day 1:
- The problem is that on top of the amp being a pre-owned unit from Amazon, I finally received some unbalanced connectors for the amp and they sound quite horrible.
- When I plug in only one of the two RCA cables into the input of the P20 amp, I get a much better soundscape, but I never get a proper output when both of the RCA cables are plugged in. Everything sounds distorted and good chunks of the sound seem to be omitted entirely.
- I got an aftermarket power supply for the Loxjie P20 amp, rated at 12V and 5A of power. Neither it nor the original power supply seem to have any influence on the problem I am experiencing.
- I wish I knew how to properly use the balanced output on the P20 amp, but have no idea whether it will work with either my Razer Blackshark headphones which I own now, or the Beyerdynamic DT 900 PRO X's I just ordered a few weeks ago for that matter.
Any advice or feedback from the regulars on this thread would be greatly appreciated! I'm still very happy with my DAC, but I am considering refunding or exchanging this amp as I suspect that it's defective but I cannot diagnosed the balanced connections so that I can be sure.
The only settings which will respond correctly are "ou2" and "in2," which would be consistent with where the unbalanced inputs and output are located on the device. I don't have anything balanced plugged into the amplifier, so I'm fairly certain I adjusted the settings correctly.Just making sure: You've double checked your setting on the Input and Output menus? Via the multi-function volume knob.
I'm asking because I've made a mess out of those settings, on my own P20, on day .