Little Bear B4-X Valve Tube Portable Headphone Amplifier


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Estimated Delivery Date
03/05/2020 - 03/13/2020

Portable Headphone Earphone Tube Valve Amplifier!

The Little Bear B4-X Amplifier is warm sounding like a bear hug, little sized for portablity, while big in its ability to amplify! It is dual mono balanced with seperate left and right channel amplification and components thus improving separation! With replacable opamps, good battery life, and the ability to accept both 3.5mm and 2.5mm balanced inputs, the little bear is a great asset to have, be it for commuting and listening at your desk!

Availability: In stock
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Tubes/Valves: 2 x USA Raytheon JAN5899

Opamps: 2 x NE5532 (Dual Mono) , upgradable

Output Power: 450 mW

Battery: Lithium 12V 1000mA 3

Battery Life: 4 to 4.5 hours

Charging Time: 2 to 2.5 hours

Signal-to-noise ratio SNR: 105 dB

Suggested load impedence: 16-300 Ohms

Output Jack Options: 3.5mm, 2.5mm Balanced

Size of ampliier: 115mm x 69mm x 23mm (excluding gain volume knob)


Little Bear B4-X Headphone Earphone IEM Amplifier

Power Adaptor AC/DC 100-240V 50/60hHz 12.6V 1000mA

3.5mm audio cable to run between source and amplifier

2 elastic bands to hold source device and amplifier for portablity

User Manual

Manufacturer Little Bear

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