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Oriolus BA300S

Oriolus BA300S 4.4mm balanced Tube Headphone Amplifier Bile Tube Amp

$ 369.00

ORIOLUS BA300S REVIEW from Headfonics

Oriolus BA300S 4.4mm balanced Tube Headphone Amplifier Bile Tube Amp


  • 4.4mm balanced input and output, current-mode operational amplifier diffused output, using 2 micro-tubes to amplify
  • Charging for 3 hours, battery life for about 7 hours, built-in lithium polymer rechargeable battery.
  • This unit does not set the volume control, the overall gain +3DB, to improve the output amplitude of most front ends.
  • Superior battery management ensures overall performance.
  • The signal is amplified by the bile duct, which satisfies the user's different sound experience.


Frequency Response: 10Hz~50kHz(+/-0.5dB)

S/N Ratio: -111dB

THD+N: 0.02%

Tube / Op-amp Type: 6N16B


Analog Input Type: 4.4mm Balanced Standardjack

Analog Output Type: 4.4mm Balanced Standardjack

Maximum Power Output: 350mW+350mW(32ohm)

Input Impedance: 47k ohm

Output Impedance: 0.3 ohm

Headphone Impedance: 8~300 ohm

Gain: +3dB

Battery Type: Built-in Rechargeable Lithiumion Battery

Charge Time: Approx. 3 hrs

Usage Time: Approx. 7 hrs

Color: Black

Dimensions(W * H * D mm): Approx. 57*16.5*120

Weight: Approx. 165g


4.4mm to 4.4 Balanced
standard connection cable,
Usb cable, Adhesive sheet


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