FOSI AUDIO P4 Preamplifier

Preamplifiers & Volume Controllers

Reference 20518

Bon à savoir

The Fosi Audio P4 preamplifier is a compact and versatile solution. With its three stereo RCA inputs, volume control with motorised potentiometer, tone control, gain selection and neat design, it offers a high-quality sound experience.
€99.00Tax incl.

Including €0.05 for ecotax


2 years warranty

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  • Expédié et facturé depuis la France
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Fosi Audio P4 Preamplifier

Fosi Audio P4: Front view


The Fosi Audio P4 preamplifier is a compact and versatile solution. With its three stereo RCA inputs, volume control with motorised potentiometer, tone control, gain selection and neat design, it offers a high-quality sound experience.

Fosi Audio P4: Key features
Fosi Audio P4: Motorised potentiometer

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: Gain selector
Fosi Audio P4: Tone control

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: Tone control bypass switch
Fosi Audio P4: Pre-out

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.

Fosi Audio P4: Aluminum alloy case

Overview of the Fosi Audio P4

Fosi Audio P4 : Schéma de présentation
1 ON-OFF / Input selection button
2 Bass control
3 Treble control
4 Input indicator
5 Volume control
6 IR receiver
7 Tone control bypass
8 RCA inputs
9 RCA output
10 Jack 3.5mm pre-out
11 Jack DC 12V power input
12 Gain switch



Fosi Audio P4 remote control overview

Fosi Audio P4 : Schéma télécommande
1 ON-OFF button
2 Volume +
3 Input button
4 Mute
5 Volume -
6 P4 mode activation button

Buttons with no indication are not assigned.

Fosi Audio P4: Measurement and performance

Test du FOSI AUDIO P4 par Audio Science Review

"The Fosi P4 surprises with incredibly low cost while providing features such as motorized volume control and excellent performance. It simply has no weak point, other than absence of trigger. I am happy to recommend the Fosi P4 to many of you who need to switch between multiple unbalanced/RCA sources."
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Technical characteristics

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

Data sheet

Condition New

Avis

Comments (3)
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€99.00FOSI AUDIO P4 Preamplifier