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Item specifics
  • Model Number: HPA
  • Product Name: APPJ HPA
Product Description

APPJ HPA Headphone Amplifier Adapter

Note:Not include connecting cables 





This matching is widely used, can be used in 6F3 EL84 6V6 6P3 EL34 KT66 KT88 2A3 300B or the equivalent power of the single ended, combined into a headphone amplifier, strong drive ability good special effects, can drive HD800 and other high-end headphones.




Input: 4.0mm Banana Jacks
Output:High;in;low-impedanceheadphones,3.5mmand6.35mmstereo headphones,support:8ohms-600ohms all headsets
Processing power of8W +8 W
Support: 6F3 EL84 6V6 6P3 EL34 KT66 KT88 2A3 300BGewith the same power single-ended tube amp

$(KGrHqFHJEwFDU-u4J2LBQ2mVbtqBw~~60_3$T2eC16dHJH8E9qSEW80UBQ2mVfWzyQ~~60_3 (1)$T2eC16ZHJG8E9nyfoTi6BQ2mVdDLlg~~60_3

Company Information






Can you change the voltage and plug?Our voltage is 110V or 220V,and our plug is EU,US or others.
Yes,we will change the voltage and plug according to your shipping address.



Hi seller,I bought one device from your shop before,but it is broken now under warranty,can you help me repair it?

Yes,please send the defective device or wrong device to our Chinese address(please contact our salesman).
Once we received it,we will send you the new replacement or refund immediately.



I bought your product 7 years ago,but it\'s broken now,can you repair it?
Oh...Dear friend,our warranty is 1 year,would you like have a try of the newest one?



4.Shenzhen Shop

Hi,brother,I am going to Shenzhen,China,can I visit your shop?
Yes,my friend,welcome to our shop,and it would be better if you could inform us in advance,so I can prepare your expected products.

Shop address: 4F9,No.3018,Gume,Wanshang Electric City,Huaqiang north road,Futian zone.Shenzhen,China.


5.Free shipping

Hope you could read the FAQ before shopping.

If the weight of the parcel is less than 2KG,we will ship it to you via Singpore post or some other fast shipping methods.

If the weight of the parcel is more than 2KG,we will use shipping method according to your country,not 100% same as your choice.


6.Wholesale service

Dear friend,we want to buy your products in bulk,can you offer me wholesale price?

Of course,please leave us a message or send us an email,we will quote for you,email:sell(at)

Packaging Details
  • Unit Type: piece
  • Package Weight: 0.5kg (1.10lb.)
  • Package Size: 8cm x 6cm x 3cm (3.15in x 2.36in x 1.18in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.5kg (1.10lb.)
  • Package Size: 8cm x 6cm x 3cm (3.15in x 2.36in x 1.18in)
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