(Defaul packeing 12AU7 tube)

Warm up the sound NOW! 

Please read the following Message to determine which configuration of this amplifier you will need.

1.The amplifier board supports either  6 or 12 series tube, Therefore, we sell it in three tube configurations. The default Configuration of this amplifier has a 12AU7 tube. This model features a  low noise and  a smooth sound style valve. My personal  suggestion is that it is better suited for Instrumentational performances, such as Piano, Classical guitar or Violin.

We also sell for a small additional charge, a 6N11-J tube configuration and a 6922EH tube Configuration.

2.The 6N11-J tube ( ‘J” means Army use in China). It has a good Sound quality and is suitable for Vocals. When using this tube, the vocals and breath sounds are more detailed, and you can hear vocal passages very clearly because of the boost in tone frequency. A good choice if you listen to music containing a lot of singing. For  6N11 Configuration, simply add $5.00USD to the price after you have buy this item, then message me through Ebay. I will then send an invoice to you for the additional charge

3.The 6922EH Tube is an Original Russian made tube. All 3 frequency ranges( Bass, Mid, Treble) are evenly balanced. It is therefore considered Univeral in style and suited for all music styles. It will not disappoint you. For the 6922EH Configuration, simply add $10.00 USD to the price after you have buy this list , then message me through Ebay. I will then send an invoice to you for the additional charge

This headphone output power is:450mw/per channel. Now what does that mean?  To put it simply, the output power for iPhone is only 15~20mw/per channel and only suited for mini headphones, and not enough power to drive Pro headphones with big speakers in the 20-600ohm range. The solution would be to use this amplifier with its higher output and drive those Pro headphones with ease. No problem!!!

Sample guide, How to using this headphone amplifier:
1,Confirm that all cable connections are  correct.(The  input source,default is 3.5mm .If you are using RCA connectors, please switch it to RCA input. 
2,When you done connecting cables, .Plug your headphone into the amplifier output jack, turn the volume to 1/4,Turn ON the amplifier. The amplifier warm-up time is about 15 seconds, after which  you will hear  the music output. Sit back and ENJOY the beautiful music now.!!

Package included:

1 x Headphone Amplifier
1 x Peking 12AU7 tube (Basic Default package)
1 x AC power cord ( the plug depend on buyer country )
1 x Switching Power Supply Universal AC 100V-240V~1.8A / 50~60Hz to 24V DC 2A output  (Auto-Detect International Compatible,with EU/UK/US/AU plug for choice)
1 x 6.3mm to 3.5mm Gold coat earphone Jack adapter.

About shipment time:

If you are US buyer,we will ship item to you by USPS express.6-10 days arrval ,about GB,AU buyer.you can choice USPS express ship it to you.
other country buyer.this item will ship to you by register mail,with tracking number,usually 2-4 weeks arrival