My turntable has a built-in phono preamp. How do I connect it to the BOX X2?

• If the turntable has a built-in phono preamp, switch it to "Line Out" mode and connect it to the 3.5mm input on the BOX X2.

Does the BOX X2 have any built-in tone control? Dose the BOX X2 have bluetooth?

No. The BOX X2 don't have bluetooth. And the BOX X2 features gain control, not tone control. For enhanced tonal shaping, consider using models like BOX X4, which includes treble and bass adjustments. For bluetooth consider using models like BOX X3.

How to connect a turntable to the BOX X2 and active speakers?

Make sure the turntable has a Phono output with an MM cartridge. Some turntables have a built-in phono preamplifier, set it to Phono switch.

Can I replace the tubes in the BOX X2?

You can substitute with 7-pin tubes such as 6AK5, 6AK5W, 6Zh1P, 6J1, and 6J1P. These can also directly replace WE-403A, WE-403B, EF95, 6A2 tubes, 5725w tubes and standard 5654 tubes.

Turntable has built-in preamp/line switch—Can I still use this instead of my built-in preamp?

Yes, deselect the preamp on your turntable.

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Description

🎵 Elevate your vinyl game with warm, customizable analog sound!

PLUG PLAY POWER - Stable 12V DC supply ensures consistent, noise-free performance every time.
TAILOR YOUR SOUND - Three gain settings let you dial in perfect volume and clarity for any vinyl vibe.
WARM ANALOG WARMTH - Tube preamp design delivers rich, smooth audio that digital just can’t match.
COMPLETE SETUP INCLUDED - Everything you need—cables, tubes, power adapter, and 18-month warranty—right out of the box.
DIY AUDIO CUSTOMIZATION - Swap vacuum tubes to craft your unique sonic signature and stand out in your audiophile circle.

The Fosi Audio Box X2 is a compact, high-fidelity tube phono preamp designed for MM turntables. Featuring three switchable gain modes (39, 42, 45 dB) and a 12V DC power supply, it delivers low-noise, warm analog sound with customizable vacuum tubes for personalized audio tuning. The package includes all necessary accessories and an 18-month warranty, making it a perfect upgrade for discerning vinyl enthusiasts.

Specifications

Item dimensions L x W x H	11.8 x 9.8 x 3.3 Centimeters
Voltage	12 Volts (DC)
Manufacturer	Fosi Audio
Maximum Supply Voltage	12 Volts
Minimum Supply Voltage	12 Volts (DC)
Mounting Type	Freestanding
Brand	Fosi Audio
Number of Channels	1
Model	BoxX2
Product Dimensions	11.84 x 9.78 x 3.28 cm; 308.44 g
Item model number	BoxX2
Tuner Technology	DAB
Mounting Hardware	1 electronic component amplifier
Number of items	1
Batteries Included	No
Batteries Required	No
Does it contain liquid?	No
Includes Rechargeable Battery	No
Country of Origin	China
Item Weight	308 g

Reviews

D**D

Excellent

Bought this after lots of research. Decided to buy after watching YouTube video of cheapaudioman.Are perfect phono preamp for enhancing sound of vinyl records. Highly satisfied with the product. My vinyls sound extremely good. Happy with the selecter switch. Can choose the sound output suitable for my ear. Also highly recommended for vinyl lovers who cannot afford high end phono preamp. This one does a perfect job. My amplifier and vinyl player has inbuilt phono preamp. This one exceeded my expectations.

1.01.2025

S**H

excellent pre-amp for MM turntable

I own marantz receiver with fluance TT.when i connected TT to phono input of the receiver the performance was good but low frequency was not as expected.After connecting this pre amp output to the aux of receiver(not to phono input) has shown excellent performance with very good amplification at all frequency ranges.A perfect preamp for turntables

3.09.2024

N**T

Great little piece of equipment

I was using an ART Pre DJ preamp foe a few years and just bought this for fun as the fosi preamp has had some great reviews. Great build quality though the tubes need a bit of care and effort to place them properly. This preamp has been a revelation in all senses. Played some of the best sounding LPs in my collection, Alan Parson iRobot MFSL and few other steely dan albums. The low end has improved significantly, great mid range and normal highs. Might try out new tubes at some point but totally satisfied currently.

11.08.2024

A**E

Good Audio Quality

Mid range is little bit weak, otherwise the package is good

28.10.2023

V**R

Good Quality

Bought the amp for my vinyl player. Does the job very well.

9.04.2024

R**Y

Nice product

I found the preamp nice even though I have just used it for about one hour. It has yet to be broken in. You get a tube signature sound in your solid state setup. I am presently using it as a aux preamp and have not tested it for phono.Good value for money.

19.11.2023

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