This is a beautiful looking Tube Class A Headphone Amplifier with acrylic plate installed in bottom and top.
It is Pure Class A amplifier with Audiophile Performance. It brings you a powerful, dynamic and sweet TUBE SOUND from your headphone. You will be astounded at the improvement in sound quality, dynamic range, meticulous transparency, completely demonstrate its high performance and analytical ability, it can also connect with power amplifier such as a high performance pre amplifier to improve your Hi Fi system.
There is NO OP amp or IC in this circuit, which introduce unexpected distortion to the sound.
Q: This Amp only has only 1 Tube, how can I amplifier stereo signal?
A: There are 2 triode in this Tube (12AU7), It's just like dual core CPU in your PC. So both channels were get amplifiered by the Tube.
In Put Power: DC24V
Input Sensitivity: 100mV
Input Impedance: 100KOhm
Out-Put Impedance: 20~600 Ohm
Frequency response: 10Hz-60KHz +/- 0.25dB
Signal/Noise Ratio: >90dB
Dynamic range: 84.6dBA(300 ohm) 89.8dBA(33 ohm)
THD: 0.016%(300 ohm) 0.45%(33 ohm)
IMD + Noise: 0.045(300 ohm) 0.42(33ohm)
Dimension:79mm (D) X 79mm (W) X 44mm (H)not measure to tube and transformer
Shipping Weight: 600 g
What's in Package:
1 x Headphone Amplifier
1 x Brand new Shu Guang 12AU7 tube
1 x Switching Power Supply Universal AC 100V-240V / 50~60Hz to 24V DC 1A out put
(Auto-Detect International Compatible)
1 x 6.3mm to 3.5mm Gold coat earphone Jack adapter.
1 x Power cable with AC wall plug (We have 4 Standard Plugs shown in below picture. Please let us know your choice. Or we will ship the Preamp with default US plug)
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Winner bidder must respond within 2 days and finish the payment within 5 days after the auction end.
International shipping charges by AIR post. It usually takes 10-15 business days (almost 2~3 weeks)to arrive.deliver shippment fastly and seldom lost parcel.
However, package to following country may need longer time due to strict custom insepction: Italy, Brazil, Spain, France, Germany.
International order will be processed in 1 - 2 business days.
We can also provide express post by EMS(5-8 days) or DHL(4-5 days). The cost is a higher than standard postage, about $40 or higher.
Import duties, taxes and charges are not included in the item price or
shipping charges. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these
additional costs will be prior to bidding/buying.