Fosi Audio P4 Preamplifier

Fosi Audio P4: Motorised volume potentiometer

• The Fosi Audio P4 features a motorised volume control. As well as providing smooth volume control, this solution also reduces noise and distortion, delivering a better-defined soundstage.

 

Fosi Audio P4: Three gain level

• The Fosi Audio P4 features a gain selector, allowing you to choose from three levels of gain to suit the output levels of different sources.

Fosi Audio P4: Tone control

• Two buttons on the front of the Fosi Audio P4 allow you to adjust the bass and treble levels over a range of ±12dB. This makes it possible to adjust the output of the device to suit your system, your music and your listening style.

 

Fosi Audio P4: Tone control bypass

• If you’re not interested in the tone control offered by the Fosi Audio P4, it can be completely disabled using the bypass switch on the back of the unit. So you can enjoy the purest listening experience of the P4.

Fosi Audio P4: Pre-out

• The Fosi Audio P4 features a pre-out on a 3.5mm jack, allowing you to expand your system, in particular by adding an active subwoofer.

 

Fosi Audio P4: Aluminium alloy chassis

• The Fosi Audio P4 is housed in a compact, precision CNC-machined aluminium alloy enclosure. As well as giving the device a modern look, this limits the impact of electromagnetic interference on the signal.

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• ON-OFF / Input selection button

• Bass control

• Treble control

• Input indicator

• Volume control

• IR receiver

• Tone control bypass

• RCA inputs

• RCA output

• Jack 3.5mm pre-out

• Jack DC 12V power input

• Gain switch
  

• ON-OFF button

• Volume +

• Input button

• Mute

• Volume –

• P4 mode activation button

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SPECIFICATIONS

Product type    

• Preamplifier

Channels           

• Stereo (2.0)

Inputs  

• 3x Stereo RCA

Outputs              

• 1x Stereo RCA
• 1x Jack 3.5mm pre-out

SNR      

• ≥ 110dB

Dynamic range

• ≥ 110dB

THD+N

• ≤ 0.003%

Crosstalk           

• ≥ 103dB

Noise floor        

• ≤ 9µV

Tone control (bass / treble)       

• ±12dB

Frequency response    

• 20Hz – 20kHz (±0.1dB)

GENERAL

Supply voltage

• 12VDC 1.5A

Color   

• Black

Weight

• 470g

Dimensions     

• 114 x 162 x 43mm

Package             

• 1x Fosi Audio P4
• 1x Remote control

• 1x Power supply