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        P4 Pre Amplifier

        Fosi Audio P4 Pre Amplifier

        €99,95

        10+ In stock

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        Fosi Audio P4 Pre Amplifier

        7 reviews
        5 from 5
        7 reviews
        5 stars
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        Brand: Fosi Audio
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        P4 Pre Amplifier
        € 82,60€ 99,95 10+ In stock
        • -5% Purchase 4 for only € 94,95 per piece
        € 99,95
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        • Ordered now, shipped on Monday
        • At least two years warranty
        • 45-day cooling-off period to return
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        P4 Pre Amplifier
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        P4 Pre Amplifier

        Pros and cons

        According to our specialists
        • Nois floor ≤ 9μV
        • Tone Adjustment Gain ±12dB

        Product description Fosi Audio P4 Pre Amplifier

        The Fosi Audio P4 is a compact stereo preamplifier with three RCA inputs, tone control, three-level gain adjustment and remote operation, designed as a flexible control hub for a clean and convenient Hi-Fi setup.

        Highlights of the Fosi Audio P4

        • Three RCA inputs for connecting multiple analog audio sources
        • Bass and treble control with bypass function for a pure signal path
        • High-precision motorized analog potentiometer for smooth volume adjustment
        • Three-level gain adjustment to match different source output levels
        • RCA output and pre-out for system expansion with powered speakers or subwoofers

        Product details Fosi Audio P4

        Fosi Audio P4 Mini Preamplifier

        The Fosi Audio P4 is built as a compact control center for a home audio system. With three RCA inputs, it lets you connect sources such as CD players, streamers, DACs, cassette decks and turntables with a built-in phono preamp, then switch between them easily from one central unit.


        For fine-tuning your listening setup, the P4 offers volume control, bass and treble adjustment, and a three-level gain setting. The bypass function lets you remove the tone control circuit from the signal path when you want the cleanest possible high-fidelity playback, while the gain control helps match different source output levels.


        The high-precision motorized analog potentiometer gives the P4 smooth and precise volume adjustment while helping to reduce noise and distortion. When using the remote control, the motorized control follows the physical volume knob, making operation intuitive from your listening position.


        System integration is straightforward: connect your sources to the P4, then run RCA cables to an amplifier or use the pre-out for powered speakers, a powered subwoofer or additional amplification. With an SNR of at least 110 dB, THD+N of no more than 0.003% and a 20 Hz to 20 kHz frequency response within ±0.1 dB, the P4 is designed for clean, accurate stereo performance in a space-saving enclosure.

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        Specifications

        Article number
        Fosi-P4
        EAN
        6976136960607
        Signal-to-noise ratio (SNR)
        ≥ 110 dB
        Distortion
        ≤ 0.003%
        Frequency response
        20 - 20.000 Hz
        Subwoofer output channel
        Yes
        Analog in/out
        In/out
        RCA in/out
        in (3 x)/out (1 x)
        Subwoofer pre-out
        Yes
        Remote control
        Yes

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        Reviews

        7 reviews
        Review this product
        5 of 5
        Tolles Gerät für diesen Preis! Ich verwende den P4 als Vorverstärker zu einem Röhrenverstärker der nur einen Input hat und keine Fernbedienung. Der Unterschied mit und ohne P4 im Signalweg ist für mich nahezu nicht zu hören. Dafür habe ich jetzt 3 Inputs für Streamer, CD Player und Plattenspieler und eine Lautstärkeregelung über Fernbedienung und das alles für 100,- €. Super!
        By Uwe on 7 July 2026
        5 of 5
        Goed aanbod, faire prijzen en snel geleverd
        By Willem on 2 July 2026
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        P4 Pre Amplifier
        € 82,60
        € 99,95
        P4 Pre Amplifier
        10+ In stock
        Add to cart
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