Fosi Audio Box X4 Phono Vorverstärker
Only 1 piece in stock at supplier
Product details
The BOX X4 Phono preamplifier from Fosi Audio supports 3.5mm AUX input and MM turntable inputs. It converts phono signals into line-level signals using low-noise integrated circuits and high-quality components, eliminating low-frequency noise to ensure clear sound quality. A grounding connection also protects your turntable. The BOX X4 can also be used as a tube headphone amplifier and preamplifier, featuring a 3.5mm headphone jack, RCA output, as well as bass and treble controls, making it extremely versatile.
Phono preamp type | Moving magnet |
Equipment | Tube preamplifier |
Item number | 68336070 |
Manufacturer | Fosi Audio |
Category | Phono preamps |
Manufacturer No. | BOX X4-12V |
Release date | 13.3.2026 |
Sales rank in Category Phono preamps | 12 of 58 |
Colour | Black |
Exact colour description | Black |
Phono preamp type | Moving magnet |
Equipment | Tube preamplifier |
Headphone jack | 3.50 mm |
CO₂ emissions | 29.26 kg |
Climate contribution | CHF 0.70 |
Width | 120 mm |
Height | 35 mm |
Depth | 101 mm |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Phono preamps» category have a defect within the first 24 months?
Source: Digitec Galaxus- Fosi AudioNot enough data
- 1.LD Systems0.3 %
- 2.Pro-Ject0.8 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- Fosi AudioNot enough data
- LD SystemsNot enough data
- Pro-JectNot enough data
Unfortunately, we don't have enough data for this category yet.
Return rate
How often is a product of this brand in the «Phono preamps» category returned?
Source: Digitec Galaxus- 1.LD Systems2.8 %
- 2.Pro-Ject5 %
- 3.Fosi Audio5.2 %