1. Mini size and unique design: built-in tube makes you have a tube amplifier which can be held by one hand, convenient to carry and can enjoy HiFi music everywhere.
3. Full, delicate and soft sound: warmer than transistors, independent op amp and power supply inhance the SNR and degree of separation, less interplay and higher sound quality.
4. High-end making material and craft: using gold-plated socket, electrolytic capacitor, and precision ring resistance.
The difference between B4 and B4-X
1. B4-X is a dual-mono balanced version. Its left and right channel are amplified by independent components, and power supply, tubes, and op amp are all independent and symmetric. So the degree of sound separation is higher than B4.
2. B4-X adopts 2 groups of independent power supply(+12V and -12V) for 2 op amps, less mutual effects and can drive 300Ω headphones.
3. The circuit adopts dual op amp parallel output, with higher output power.
4. B4-X has 3.5mm and 2.5mm 2 kinds of output interface, suitable for most of balanced and standard headphones.
Tube: RAYTHEON JAN5899 x2
Lithium Battery: 12V, 1000mA
Charging time: 2-2.5 hours
Working time: 4-4.5 hours
Output power: 450mW
Voltage: AC100-240V
SNR: 105dB
Colour: Black
material: metal
Output: 2.5 balanced Jack x 1, 3.5mm Jack x 1
Size: 115 x 69 x 23 mm (LxWxD) (does not include the knob)
Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on
Package Contents:
1x headphone amplifier
1x power supply
1x 3.5mm audio cable(The style and color of the audio cable are randomly issued Do not accept designation)
2x coils (coil color random Do not accept designation)
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
CONTACT US
RETURNS POLICY
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SHIPPING
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How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
