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        SoundImpress PU400-1CH Mono Amplifier | 425WPC | Eigentakt | Powered by Purifi

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        € 1.074,34€ 1.299,95 4 In stock: .

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        • Ordered now, shipped on Monday
        • Five-year warranty
        • 45-day cooling-off period to return
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        Product description

        This High-end class-D mono amplifier, based on the Eigentakt technology from Purifi Audio, offers its users a powerful 425W channel. Making this SoundImpress amplifier very capable and higlhy affordable. The SoundImpress brand stands for outstanding quality, timeless designs, and Dutch craftsmanship. This amplifier is built to last as it is extensively tested and manually assembled to ensure every last detail is checked.



        • Powered by state-of-the-art Purifi Eigentakt technology  
        • Up to 1 x 400 Watt at 2 ohm load
        • Efficiency up to 94%, further reducing power consumption
        • High quality aluminum chassis to even increase further heat dissipation capacity
        • Unprecedentedly low distortion over frequency and power range
        • Balanced analog inputs (XLR)
        • Banana-plug speaker connectors
        • High quality aluminum chassis to offer extra heat dissipation capacity
        • Dimmable LED
        • Assembled by hand in the Netherlands
        • 5 year Warranty


        Product details

        SoundImpress PU400 Mono Amplifier | 1 x 400W | Eigentakt | Powered by Purifi


        The SoundImpress PU400 mono amplifier is made by audio enthusiasts for audiophiles. It is known that this mono amplifier has one of the biggest impacts on how the music sounds. Even high-end woofers from superb brands such as Scan-Speak hold back on their true potential when connected to an inferior amplifier. This state-of-the-art Class-D amplifier from SoundImpress ensures that you squeeze the absolute maximum out of your speakers!


        State of the art class-D amplifier by SoundImpress

        Thanks to high precision parts such as op-amps, high voltage gate drivers and high current MOSFETs, this amplifier can power almost any speaker. Be it a single subwoofer or your sophisticated 3-way tower. Thanks to the efficiency a high loop gain can be obtained, creating an unparalleled performance.


        The Eigentakt implementation from Purifi is one the best amplifier technologies available. This class-D technology meets high standards and gives super performance at any playback level, regardless of load. This results in a stable, dynamic and realistic sound image, at any music genre. This amplifier will squeeze (with a proper music source and proper pre-amplification) all the dynamics out of your music without distortion, and at any volume.


        Minimalistic but powerfull

        Packed within a minimalastic high quality aluminum chassis, this is more than just another powerful amplifier. Gone are the days of needing to have a massive heavy weighted mono power amplifier to have excellent sound and achieve some volume. The amplifier can deliver all its power from as low as 2 ohm impedance combined with low idle loss, very low distortion and noise levels! 


        In addition, this amplifier has a nice appearance, an imposing look that takes away all the attention from your other home audio devices. A minimalistic design without compromising on performance or additions of cooling elements. Every amplifier comes with our own stamp of approval, our iconic “S”-logo, on the front plate. This branding ensures that you own a piece of real quality, that is built to last. A small (dimmable) LED displays is implemented to show when the device is on or off.


        But not only the case is puristic; the mono amplifier features the input and outputs your speaker set-up deserves. The amplifier features XLR balanced inputs. Convenient banana-plug speaker connectors have been chosen as outputs.


        This 400 watt mono class-D amplifier is ready to bring new life to any system!


        Whats In The Box

        • SoundImpress PU400-1CH Mono Amplifier
        • IEC C13 power cable (UK/EU/US) 
        • SoundImpress manual

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        Article number
        Rated power output (RMS)

        1 x 450 watts at 2 ohms

        1 x 425 watts at 4 ohms

        1 x 227 watts at 8 ohms

        Minimum load
        2 ohms
        Signal-to-noise ratio (SNR)
        131 dB
        0.00017 % THD+N (20 Hz - 20 kHz, 4 ohms, 100 watts)
        > 94%
        Frequency response
        0 - 60,000 Hz
        Input impedance
        4.4k ohms (14 dB) / 10.2k ohms (27 dB)
        Circuit Topology
        Amplifier classification
        Class D
        Speaker output channels
        XLR in/out
        Banana plug compatible
        Power requirements
        110 / 230 VAC
        Power inlet connector
        IEC C14
        Dimensions (D x W x H)
        325mm x 250mm x 90mm (size incl feet, excl connectors)
        Case material

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        PU400-1CH Mono Amplifier | 425WPC | Eigentakt | Powered by Purifi
        € 1.074,34
        € 1.299,95
        PU400-1CH Mono Amplifier | 425WPC | Eigentakt | Powered by Purifi
        4 In stock: .
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