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Fosi Audio Box X4 MM Turntable Phono Preamplifier
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Fosi Audio Box X4 MM Turntable Phono Preamplifier

Fosi Audio Box X4 MM Turntable Phono Preamplifier

  • 2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.

  • MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable.

  • Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.

  • Applicable Vacuum Tube Model: 5654W/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.

  • What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.

Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume Bass Treble Control Hi-Fi Pre Amp Fosi Audio Box X4



Specifications

Specifications Details
Model BOX X4
Applicable headphone types 16 Ω
Input Mode MM turntable + 3.5mm AUX
Output Mode RCA + 3.5mm headphone output
Output Active(powered) speakers, Amplifier, Headphones
Frequency Response Standard RIAA
THD ≤ 0.1%
SNR ≥ 70dB
Device Dimension 4.72 x 3.97 x 1.37 inches
DC Input Range 12V
Input Voltage Range AC 110V - 240V
Output Voltage Level 1kHz and 650mV
Power Supply 12V 1.5A


What‘s in the box？

Item Quantity
BOX X4 phono preamp x 1
Vacuum Tubes x 2
DC 12V power supply x 1
User's Manual x 1


Download BOX X4 User Manual
$31.50

Original: $89.99

-65%
Fosi Audio Box X4 MM Turntable Phono Preamplifier—

$89.99

$31.50

More Images

Fosi Audio Box X4 MM Turntable Phono Preamplifier - Image 2
Fosi Audio Box X4 MM Turntable Phono Preamplifier - Image 3
Fosi Audio Box X4 MM Turntable Phono Preamplifier - Image 4
Fosi Audio Box X4 MM Turntable Phono Preamplifier - Image 5
Fosi Audio Box X4 MM Turntable Phono Preamplifier - Image 6
Fosi Audio Box X4 MM Turntable Phono Preamplifier - Image 7

Fosi Audio Box X4 MM Turntable Phono Preamplifier

  • 2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.

  • MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable.

  • Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.

  • Applicable Vacuum Tube Model: 5654W/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.

  • What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.

Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume Bass Treble Control Hi-Fi Pre Amp Fosi Audio Box X4



Specifications

Specifications Details
Model BOX X4
Applicable headphone types 16 Ω
Input Mode MM turntable + 3.5mm AUX
Output Mode RCA + 3.5mm headphone output
Output Active(powered) speakers, Amplifier, Headphones
Frequency Response Standard RIAA
THD ≤ 0.1%
SNR ≥ 70dB
Device Dimension 4.72 x 3.97 x 1.37 inches
DC Input Range 12V
Input Voltage Range AC 110V - 240V
Output Voltage Level 1kHz and 650mV
Power Supply 12V 1.5A


What‘s in the box？

Item Quantity
BOX X4 phono preamp x 1
Vacuum Tubes x 2
DC 12V power supply x 1
User's Manual x 1


Download BOX X4 User Manual

Product Information

Shipping & Returns

Description

  • 2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.

  • MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable.

  • Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.

  • Applicable Vacuum Tube Model: 5654W/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.

  • What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.

Phono Preamp & Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume Bass Treble Control Hi-Fi Pre Amp Fosi Audio Box X4



Specifications

Specifications Details
Model BOX X4
Applicable headphone types 16 Ω
Input Mode MM turntable + 3.5mm AUX
Output Mode RCA + 3.5mm headphone output
Output Active(powered) speakers, Amplifier, Headphones
Frequency Response Standard RIAA
THD ≤ 0.1%
SNR ≥ 70dB
Device Dimension 4.72 x 3.97 x 1.37 inches
DC Input Range 12V
Input Voltage Range AC 110V - 240V
Output Voltage Level 1kHz and 650mV
Power Supply 12V 1.5A


What‘s in the box？

Item Quantity
BOX X4 phono preamp x 1
Vacuum Tubes x 2
DC 12V power supply x 1
User's Manual x 1


Download BOX X4 User Manual