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LOXJIE P20 Full Balance Tube Amplifier Headphone Power Amplifier (Black)

4.5 4.5 out of 5 stars 677 ratings

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Brand LOXJIE
Color Black
Item Weight 1.32 Pounds

About this item

  • Military grade 6N3 electronic tubes and carefully tuned circuits.Powerful drive circuit up to 600mW at 64Ω .
  • Fully balanced headphone amplifier,including balanced input interface.
  • Hi-End volume control NJW1195 produced by JRC Japan.
  • Use relay for mute control.Humanized operation with memory function.
  • Aluminum CNC,very fine workmanship.
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**If you receive an item with the wrong color, please contact us immediately and we will process and resend a brand new product for free. We are in contact with the Amazon team and they will help us investigate and remove the wrong inventory of goods. This error will not happen again in the future, please rest assured. **Warm up for 30 minutes to get better effect Plugged in the item with the included power supply and gave the tubes time to warm up.After 30 minutes, just plugged in your headphones and perfect sound was coming out of the amp. Please feel free to contact us if there are any quality problem,we will quickly solve it for you!

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Product Description

Full Balance Tube Headphone Amplifier
Full Balance Tube Headphone Amplifier
Full Balance Tube Headphone Amplifier
Full Balance Tube Headphone Amplifier
Full Balance Tube Headphone Amplifier

Product information

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LOXJIE

LOXJIE P20 Full Balance Tube Amplifier Headphone Power Amplifier (Black)


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
677 global ratings

Customers say

Customers like the sound quality, value, durability, performance, and power of the hearing amplifier. For example, they mention that it sounds refined and detailed, it's unbelievable value for a fully balanced amp, and that it feels premium. That said, some say it works well for high impedance headphones and that the power is great.

AI-generated from the text of customer reviews

107 customers mention87 positive20 negative

Customers like the sound quality of the amplifier. They say that it developed a very pleasant sound, and everything sounds more refined and detailed. They also say that the amplifier performs well and elevates the music effectively. Customers also mention that it adds warmth to music, and has a slightly wider soundstage. They like that it likes high impedance headphones, and that it helps improve the tone and dynamics of what these lacked. Customers say that this amp is good with female vocals and harsh treble-heavy music.

"...As I stated earlier, in single ended mode the P20 sounds nice enough with efficient headphones (16 ohms - 63 ohms), however, it simply does not..." Read more

"...One thing I did seem to notice is that this amp seems to like high impedance headphones even in the lower powered unbalanced headphone mode...." Read more

"...A big reason for this was that Sennheiser HD6xx headphones sound really good with tube amps...." Read more

"...It doesn't make a stair-step noise and has dang near perfect balance. Better yet, it has a display for the volume level with a basic user interface...." Read more

47 customers mention47 positive0 negative

Customers appreciate the value of the hearing amplifier. They mention that it is an unbelievable value for a fully balanced amp, and a great deal for s balanced set up. Customers also say that the output is very clean for the price. They say it is a solid sound for short money, and that the build quality is very solid for the money.

"...This makes the P20 the lowest priced fully balanced headphone amplifier on the market at the present time...." Read more

"...I think that’s a tremendous value...." Read more

"...Build quality: 9/10: very solid for the priceFunctionality: 10/10: balanced tube amp for $99 with RCA input as well...." Read more

"...April 2019:The Loxjie P20 is currently the best bang for the buck balanced headphone amp...." Read more

43 customers mention38 positive5 negative

Customers like the durability of the hearing amplifier. They mention it has a nice build quality, with smooth edges and a good screen. It's a true balanced hybrid amp with quality components like German WIMA caps and 4 (2 per channel). The amp feels premium and has solid detail.

"...because the P20 also offers a vacuum tube input stage with quality components such as WIMA caps, for a total as shipped price of $89.99..." Read more

"...Construction quality is good but not fantastic. I'm bothered by the volume control which is loose and wiggles around...." Read more

"...Summary: while providing extremely clean sound, excellent build quality and being able to provide a balanced connection for $99 I can't help but..." Read more

"...upper range of the dial to get these level matched, but quality wise is holding its own...." Read more

40 customers mention35 positive5 negative

Customers like the performance of the hearing amplifier. They mention that it works well for their high impedance headphones, and delivers exquisite sound. The build quality is good, and it drives all very well. It works just fine on single ended input, but completely shines when taking a balanced input. It's good for efficient headphones, not power hungry headphones. It gives over.5-.6 watts, but it is amazing.

"...you'll have a great sounding headphone amp that handles high impedance headphones very well for not a lot of money...." Read more

"...This unit works just fine on single ended input, but completely shines when taking a balanced input with a sold 2+ VRMS...." Read more

"...It's incredible. Now, with that said there is a flip side. To be honest I'm not picking up much of a tube sound. If any at all...." Read more

"...The sound is musical and a joy to listen to. Nothings hyped and at high gain levels there is no noticeable distortion through the maxed out amp!..." Read more

40 customers mention28 positive12 negative

Customers like the power of the hearing amplifier. They say it's a good amp, it works well, and sounds good. Some say it has plenty of power to run high impedance headphones like Sennheiser HD 650. Overall, customers are satisfied with the power and performance of the product.

"...It has plenty of power to run high impedance headphones like my Sennheiser HD 650 (300 ohm MassDrop HD 6XX version) and HD-600's, as well as my..." Read more

"...tube amp in my opinion, adds a little bit of magic and also a good bit of power...." Read more

"...This amp is pretty darn good, from what I can tell with my setup and ears. I've tried it ONLY for unbalanced IN, from the Allo BOSS 1.2 DAC...." Read more

"...the cheap Chinese-made switching power supply is not really supplying enough amperage for this amp...." Read more

14 customers mention14 positive0 negative

Customers are satisfied with the balance of the hearing amplifier. They mention that it has a fantastic balanced input and output for the price. The sound is clear, punchy, and non-sibilant. The single ended and balanced output are a plus.

"...It doesn't make a stair-step noise and has dang near perfect balance. Better yet, it has a display for the volume level with a basic user interface...." Read more

"...What more could you ask for at this price. Heck of a deal. Single ended and balanced output. Input connections are very solid built...." Read more

"...But P20's balanced output is a plus. You may roll the tubes on the P20 to get more "tubey" sound if desired...." Read more

"...the sound has softened quite a bit and it's much more balanced...." Read more

37 customers mention22 positive15 negative

Customers are mixed about the quality of the hearing amplifier. Some mention that it has tube goodness, and is pleasant. They also say that it's a euphoric masterpiece with a high quality DAC running a balanced. However, others say that the stock tubes are poor, the quality is good but not fantastic, and the single-ended output is anemic.

"...The P20, or any tube amp in my opinion, adds a little bit of magic and also a good bit of power...." Read more

"...It ends up sounding anemic and ultimately disappointing...." Read more

"...Since the tubes are interchangeable, technically the P20 is also upgradable in the sense that you can upgrade to new tubes from other companies..." Read more

"...are designed, but this little unit adds a lot of clarity and punchiness to the raw output of anything...." Read more

23 customers mention12 positive11 negative

Customers are mixed about the warmth of the hearing amplifier. Some mention that it is clean, detailed, and slightly warm, while others say that it gets a bit hot temperature wise and the tubes are very warm.

"...With this setup of stacked 40mm cooling fans the P20 is now running much cooler and the fans are reasonable quiet, being so small...." Read more

"...not actually be an issue and is working as designed, is this thing gets VERY warm (US 120v)...." Read more

"...Despite not having a true tube sound it's still very warm and pleasant. It's s nice relaxed sound for easy listening...." Read more

"...I haven't used the P20 much because it gets rally hot after just 1 hour of use but it died anyway.April 2019:..." Read more

Excellent amplifier and sound quality, especially for the price.
5 Stars
Excellent amplifier and sound quality, especially for the price.
I recently purchased the Loxjie P20 and have owned it for several weeks now. This is my first headphone amplifier, and my first high quality headphone audio setup. I do have good experience with stereo loudspeaker hifi, as a reference point. The overall sound from this amp is great to my ears. I won't get too much into the perception of the sound though, as that's relative to each person and headphones.Setup....Source: ripped CDs to NAS storing FLAC 44.1/16-bitTransport: Raspberry Pi Model 3 B+ serving up VolumioDAC: Allo Boss 1.2 Pi DAC w/ Jameco 5v 1a regulated linear supplyLoxjie P20 ampTubes: GE JAN 5670 (matched)Headphones: Massdrop Sennheiser 6XXHeadphone cables: Periapt Type 4 Senn -> 4-pin XLR @ 7ftThis amp is pretty darn good, from what I can tell with my setup and ears. I've tried it ONLY for unbalanced IN, from the Allo BOSS 1.2 DAC. But I have tried the amp with both the AKG K240STUDIO (single ended) as well as the Massdrop Sennheiser HD6XX (AKGs returned, HD6XX is obviously a better headphone for this amp and a better headphone all round in my opinion). I've listened with the 6XX's in both single-ended and balanced xlr. At the 300ohm rating, the balanced XLR out was definitely better, as to be expected with the much greater power.I replaced the stock 6NP tubes with matched GE JAN 5670 tubes I purchased here from Amazon as well, for an average price.I have had a few issues to call out here, but none of these issues have negatively impacted the audio quality...The first is that I ended up exchanging the original P20 I received, due to some scuffs on the red finish, directly on the "Loxjie" logo on the front. Amazon quickly sent me a non-scuffed replacement without any fuss. So that was more of a final quality control issue than anything else.The second "issue" I've noticed with this is the included power supply seems suspicious. I didn't know this until I replaced the power supply, but with the stock 12v 1.67a included supply, there was a delay in startup. The amp would light up momentarily, then quickly turn off, and then back on again. Every time on startup this would occur. I replaced the included power supply with a brand new Jameco 12v 5a, 60w, regulated switching power supply (KPL-060F). Now the amp starts up without any intermittent pause or delay. It starts up and stays on the first time. I can only assume the included power supply is under too much load when first starting, causing the "blip" for lack of a better term. I don't think audio performance was impacted by the stock supply, and I have no way of testing this, but I have greater peace of mind with a better power supply giving the amp its juice.The last issue I noticed, although might not actually be an issue and is working as designed, is this thing gets VERY warm (US 120v). I added an 80mm silent cooling fan from a different project underneath the amp to blow upward onto the bottom of the chassis, and run it when the amp is on. The case is much cooler now, than without any active cooling. I speculate this amp is going to kill itself more quickly with excessive heat one day, if left as-is and uncooled.All of that said...Taking a step back, I think this was a great purchase for my first amp and doubt I could find a better price:performance for the $$$ I paid. I have room to grow into a XLR DAC source if I feel like I want to tinker down the road and get a few more performance points out of the P20. I have no plans to replace or upgrade the amplifier itself, as the music delivered to my ears from source to amp to headphones is superb. The detail, clean bass, staging, and all those other buzzwords feel like I'm getting more than my money's worth. I would absolutely recommend this amp to anyone on a relative budget, looking to get into headphone hifi or add to what they already have, even with the above "issues" I've noticed. It's a great score, and I'm glad I bought this.
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Reviewed in the United States on December 6, 2018
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Reviewed in the United States on April 16, 2019
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Top reviews from other countries

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Cliente de Amazon
5.0 out of 5 stars Buen amplificador por su precio.
Reviewed in Mexico on August 4, 2021
2 people found this helpful
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Lucas
5.0 out of 5 stars The Loxjie P20 is fine
Reviewed in the Netherlands on October 26, 2023
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Lucas
5.0 out of 5 stars The Loxjie P20 is fine
Reviewed in the Netherlands on October 26, 2023
The Loxjie works as supposed. At first it didn't seem so, due to a mistake in the added manual; nothing serious but if you follow it you end up with no sound (line 1 and 2 are mixed up). The amplifier is a reasonable good product, will be a winner with upgraded power supply, different tubes and evt. other opamps. In any case, only use balanced, otherwise the quality of sound is so so.
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Simone Garau
5.0 out of 5 stars Il piccolino ci sta un sacco
Reviewed in Italy on June 17, 2022
Cliente Amazon
3.0 out of 5 stars En general no aporta nada que no te de un buen amplificador "a transistores"
Reviewed in Spain on December 10, 2021
2 people found this helpful
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ben
5.0 out of 5 stars Excellent value, didnt expect that much quality at this price!
Reviewed in Canada on October 22, 2019
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ben
5.0 out of 5 stars Excellent value, didnt expect that much quality at this price!
Reviewed in Canada on October 22, 2019
Super happy with this unit, its paired with my DT990 pro 250ohm .. the sound is clear, it create a wide soundstage, and its enough loud for my taste. Got a pair of 6n3pe tube and a bigger power supply on the way.. cant wait to try this little beast with those mods. Overall im impressed and i recommend the Loxjie P20!!
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