Bravo Ocean 12AU7 A-AMP 真空管 ヘッドフォン・アンプ

SKU: FM137
価格: ¥14,000
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  • Powerful tube sound for audio players.
  • Small and powerful. Looks great as well !
  • All required input/output jacks for connection to any audio source .
  • Class A headphone amplifier with aluminum case to help dissipate heat.


This is a beautiful looking Tube Class A Headphone Amplifier with Aluminum case.
Ocean has 2 x input port:
3.5mm jack
RCA jacks

Ocean has 3 x output port :
3.5mm jack
6.35mm jack
RCA jacks


In Put Power: DC24V
Input Sensitivity: 100mV
Input Impedance: 100KOhm
Out-Put Impedance: 20~600 Ohm
Gain: 30dB
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: 115mm (D) X 82mm (W) X 78mm (H)
Shipping Weight: 850g


Bravo Ocean Head-Amp * 1
Power cable with AC wall plug  * 1
Brand new Shuguang 12AU7 tube * 1
Switching Power Supply Universal AC 100V-240V / 50~60Hz to 24V DC 1A out put * 1
(Auto-Detect International Compatible)


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.

カスタマー Q&A:


What's the tube of this item does the factory use? Regards Ford

投稿日: 14/07/07 12:41

The tube is 12AU7. Thanks

このレビューは参考になりましたか?  はい   いいえ

Which tubes i can use to replace 12AU7 tubes? Regards. Olympia

投稿日: 14/09/18 16:26

You can use tubes GE5814, ECC82 and 6189 instead of 12AU7 tube. Thanks

このレビューは参考になりましたか?  はい   いいえ

If I exchange the original tube for ECC82, can I adjust the bias on Bravo?

投稿日: 15/08/21 20:38

Hi, it don't have to adjust the bias. Thanks.

このレビューは参考になりましたか?  はい   いいえ

Hi! Can you provide for this product EU plug?Xiexie.

投稿日: 15/08/25 3:38

Yes, we can provide EU Plug. Thanks.

このレビューは参考になりましたか?  はい   いいえ

bonjour comment regler le bias merci

投稿日: 16/09/28 16:14

Hi Patrick,it just can adjust volume.Thank you.

このレビューは参考になりましたか?  はい   いいえ

la balance gauche/droite n est pas au meme niveau si volume trop faible pas de son correct a droite avez voue le service manuel pour regler le bias merci

投稿日: 16/09/28 16:35

Hi Patrick,May be a potentiometer is broken, can return to repair.Thank you.

このレビューは参考になりましたか?  はい   いいえ
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