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

Is it possible to use both the jack outputs (6.5mm and 3.5mm) at the same time, so it would play two headphones together (simultaneously)?    My friend told me he can use just one jack output at a time (the 3.5mm output will take the lead and will cut the 6.5mm one). Is that true?

投稿日: 18/08/19 10:00

Hello,it can not use both the jack output at the same time.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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