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  • 5 VIDEOS
BOX X2-How to install Amp&Preamp tubesFosi Audio
  • Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply
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Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply

4.5 out of 5 stars 2,964 ratings
Â鶹Çø's Choice highlights highly rated, well-priced products available to ship immediately.
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Sustainability features

This product has features recognized as more sustainable by certifying organizations.
Carbon impact
Carbon emissions from the lifecycle of this product were measured, reduced and offset.
As certified by
ClimatePartner certified

ClimatePartner certified

The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reducing emissions.

Certification number

ZK5TB8
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Purchase options and add-ons

About this item

  • Tube MM Phono Preamplifier: This Fosi Audio phono preamplifier removes low-frequency noise and ensures clear sound quality by converting phono signals to line-level signals using high-quality components and low-noise integrated circuits. It is designed to safeguard your turntable thanks to its grounding post
  • 3 Switchable Gain Modes: You can switch between 3 modes: 39, 42, or 45 dB. High compatibility and customizable control are provided by the adjustable gain levels. Also, it has very good circuitry and entry-level, high-end analog sound
  • Tube Preamplifier: With a 3.5mm AUX input, it's also a tube preamp. Fosi Audio used high-quality component parts for the design and assemblage of this phono preamplifier. You can enjoy a very warm and smooth sound
  • Applicable Vacuum Tube Model: The compatible vacuum tube models are 6K4, 6J1, 6J4, GE5654, 6AK5, 66, etc. To make changes to your stereo system yourself, simply swap out the vacuum tubes. Consider that distinct tubes produce various sounds
  • Package Content: You will get 1 x Box X2 phono preamp, 2 x vacuum tubes, 1 x RCA cable, 1 x power adaptor, and 1 x user manual
› See more product details

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Product information

Technical Details

Brand ‎Fosi Audio
Manufacturer ‎Fosi Audio
Place of Business ‎ShenZhen city, Guangdong province 518000,CN
Model ‎BoxX2
Model Name ‎Fosi TB10D BT30D BT20A PRO X2 Sound Bar
Part Number ‎Box X2
Tuner Technology ‎DAB
Mounting Hardware ‎Quick Start Guide
Number of Items ‎1
Speaker surround sound channel configuration ‎5 1
Voltage ‎12 Volts (DC)
Power source type ‎AC 110V - 240V
Batteries included ‎No
Batteries Required ‎No
Connector Type ‎RCA
Mounting type ‎Freestanding
Does it contain liquid? ‎No
Includes rechargable battery ‎No
Manufacturer ‎Fosi Audio
Language ‎English
Item model number ‎BoxX2
Product Dimensions ‎11.84 x 9.78 x 3.28 cm; 308.44 g
ASIN ‎B07XNTHHBP

Additional Information

Date First Available Oct. 1 2019
Customer Reviews
4.5 out of 5 stars 2,964 ratings

4.5 out of 5 stars
Â鶹Çø Rank

Feedback

Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply

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Safety and product resources

Safety documents

Sustainability features

This product has features recognized as more sustainable by certifying organizations.

Carbon impact

Carbon emissions from the lifecycle of this product were measured, reduced and offset.

As certified by
ClimatePartner certified

From the brand

Previous page

  2. Guided by our mission of "Redefining HiFi with Unmatched Value", Fosi Audio continues to fuel its passion for the Hifi industry, ramp up R&D efforts, and co-create new HiFi equipment with users. We pledge to bring more amazing Hifi gear with high value for the price, innovative design, cutting-edge technology, and premium quality, to audiophiles worldwide.

  3. »·±£³¡¾°Í¼
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Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Fosi Audio BOX X2 Tube MM Phono Preamplifier

Merchant video
fosi

Tube MM Phono Preamplifier/Tube Preamp

With RCA and 3.5mm AUX inputs, the BOX X2 offers flexibility to connect with various audio sources, making it a versatile addition to different systems.

  • Power Adapter: 12V/1A; Adapter Input Voltage Range: AC 110V - 240V
  • Output Voltage Level: 600 Mv @3mV 1kHz
  • Frequency Response: Standard RIAA; SNR ¡Ý 98dB; THD ¡Ü 0.1%

tube phono preamp for turntable

RCA for MM Turntable Preamp

Ideal for MM cartridges, this mini preamp features precise RIAA equalization and low noise. It includes stereo RCA inputs and outputs.

tube phono preamp for turntable

AUX for Tube Preamplifier

Audiophile-grade amplification with low-noise operational preamps, plus a tube preamp and 3.5mm AUX input. Crafted from high-quality components.

tube phono preamp for turntable

Elegant Vacuum Tube Design

The visible vacuum tubes give a retro aesthetic while offering enhanced sound quality.

tube phono preamp for turntable

Circuit Board Layout

The circuitry is meticulously arranged to minimize interference and maximize sound quality.

Product Comparison

BOX X2

BOX X1

BOX X3

Buying Options

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Buying Options
Customer Reviews
4.5 out of 5 stars 2,964
4.3 out of 5 stars 1,614
—
4.2 out of 5 stars 801
4.4 out of 5 stars 153
—
3.9 out of 5 stars 30
Type
Phono Preamp with Vacumm Tubes Phono Preamp Phono Preamp with Vacumm Tubes Phono Preamp with Vacumm Tubes Phono Preamp Headphone Amp +Preamp Headphone Amp+DAC Tube Preamp
Input
RCA+3.5mm AUX RCA Bluetooth + AUX + RCA RCA+3.5mm AUX MM+MC RCA Bluetooth + RCA Bluetooth+USB+Optical+Coaxial
Output
RCA RCA + Headphone RCA RCA+3.5mm AUX RCA RCA + 3.5mm Headphone + AUX RCA + 3.5mm Headphone
Treble & Bass Control
✘ ✘ ✔ ✔ ✔ ✔ ✔
THD
¡Ü 0.1% ¡Ü 0.08% ¡Ü 0.1% ¡Ü 0.1% ¡Ü0.009% ¡Ü 0.02% £¼0.03%
SNR
¡Ý 98dB ¡Ý 70dB ¡Ý 70dB ¡Ý 70dB ¡Ý 92dB ¡Ý103»åµþ ¡Ý103»åµþ
Power Adapter
12V/1.5A 12V/1.5A 12V/1.5A 12V/1.5A AC 16V 12V/1.5A 12V/1.5A
Work Voltage
AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 16V AC 110V - 240V AC 110V - 240V

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