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Fosi Audio BOX X4

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Device type: preamplifier; Element base: tube; Number of channels: 2; Frequency range (Hz): 20 – 20000; Signal to noise ratio (dB): 70; Harmonic distortion coefficient (%): 0.1; RCA (pairs): 1; For acoustics: 1; On headphones: 3.5 mm (mini-Jack); Dimensions (mm): 101х120х35;
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Fosi Audio BOX X4
2025external power supply
Type:preamplifier, tube
Number of channels:2
To amplifier (Main):RCA
RCA inputs:1 steam(а)
Outputs:Pre-Amp
All specifications
Specifications BOX X4
Colour
Device typepreamplifier
Featuresinformational
Element basetube
Tubes type5654W
Amplifier parameters
Number of channels2
Frequency range20 – 20000 Hz
Signal to noise ratio70 dB
Harmonic distortion0.1 %
Channel sensitivity / impedance
Line input300 mV
50 kOhm
Preout650 mV
0.6 kOhm
Connectors
InputsPhono
To amplifier (Main)RCA
RCA1 pairs
OutputsPre-Amp
For acoustics1 шт
On headphones3.5 mm (mini-Jack)
Front panelindicators
audio input jack
headphone output
Features
Adjustmentsbass control
treble adjustment
level adjustment
More featuresММ phono stage
General
Chassis materialaluminium
Power output1 шт
PSUexternal
Power consumption100 W
Dimensions (WxDxH)101х120х35 mm
Weight0.34 kg
Official Websitefosiaudio.com
Added to E-CatalogApril 2025
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Video reviews
FOSI Audio Box X4 Preamp Quick Setup
20 May 20241 229 view
Meze Audio 109 Pro with Fosi Audio Box X4 Phono Preamp
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Transform Your Audio Setup with the Fosi Audio Box X4 – Full Review!
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Transform Your Audio Setup with the Fosi Audio Box X4 – Full Review! | by @YuriBrus
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Take a look at the Fosi Audio Box X4.
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Unboxing the Fosi Audio Box X4 MM Phono Preamp
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Review of the Fosi Box X4 MM Phono Preamp
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Fosi Audio BOX X4: The Ultimate Upgrade
28 November 2024176 view
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