Fosi Audio Hifi Phono Preamp BOX X4 Turntable Phonograph Preamplifier With Vacuum Tube Amplifier

Note：

1.Due to limited availability of vacuum tubes, we will randomly ship either 5725W or 6J1 vacuum tubes.
2.BOX X4 is only a preamplifier, not amplifier, can not be connected with passive speakers directly, If you need connect BOX X3 with passive speakers, you need to connect it with an amplifier then connect the amplifier with your passive speakers.

Features:

Fosi Audio BOX X4 is a Hifi tube phono preamp and headphone amplifier for MM turntable that features Volume control and Bass/Treble control with DC 12V power supply. The BOX X4 supports MM turntable input, 3.5mm AUX input and 3.5mm headphone output and RCA line output for powered speakers or amplifiers for your home audio system. Compact ultra-low noise phono turntable preamp that converts phono signals to line level signals. The BOX X4 equipping with 5725W vacuum tubes stands up to the test and will provide you with serious sound performance.We offer 24-month worry-free warranty and friendly customer service.

Highlight:

Model: BOX X4

Power Adapter Output: 12V

Product Adapter Input Voltage Range: AC 100V - 240V

Output Voltage Level: 1kHz and 650mV

SNR ≥ 70dB

THD ≤ 0.1%

Frequency Response: Standard RIAA

Product Weight: 0.71 lb/320g

Product Dimensions: 3.97x4.72x1.37 inch (10.09*12*3.5 cm)

Input Mode: MM turntable input +3.5mm AUX

Output Mode: RCA output + 3.5mm headphone output

Applicable headphone types: 16 Ω - 300 Ω

Package Include:

*Box X4 Phono Preamp x1

*5725W./6J1 Vacuum Tubes x2

*12V Power Adaptor x1

*User Manual x1

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