Moving Coil & Moving Magnet Phono Preamp

Duo

MM / MC 唱头放大器连耳扩

What hi-Fi 5 stars Duo

Duo

MM / MC 唱头放大器连耳扩

从您的黑胶唱片集中采出每一寸的细节。这就是我们最高品质的 MM / MC 唱头放大器连耳扩 ; Duo 唱头放大器。

Duo

MM / MC 唱头放大器连耳扩

从您的黑胶唱片集中采出每一寸的细节。这就是我们最高品质的 MM / MC 唱头放大器连耳扩 ; Duo 唱头放大器。

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HK$2,400
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  • major hi-fi logo

    "Few other options out there can match this kind of listening experience"

    - September 2018
  • What Hi-Fi 5 Stars Logo

    "It's a well-specified, full-bodied, dynamic performer, as classy as a matinée idol in a smoking jacket. You really can't go wrong"

    - April 2018
    Alva Duo Moving Coil & Moving Magnet Phono Preamp detail

    Vinyl as it's Supposed to Sound

    Whether you’re dusting off your record collection or embracing analogue through the vinyl revival, there’s a unique experience to be had from the moment you drop the needle on your favourite album. To preserve the unique warmth of the vinyl sound, the Duo phono preamplifier has been carefully designed with a state-of-the-art switch mode power supply and a new surface mounted circuit board layout to reduce unwanted noise.

    Alva Duo Moving Coil & Moving Magnet Phono Preamp rear detail

    Why Choose a Dedicated Phono Preamplifier?

    Due to the low-level signals created by a turntable, not all hi-fi amplifiers will let you connect directly to a record player. The phono preamplifier boosts this signal to something a power amplifier can work with. The challenge at this stage though is that noise can easily be added.

    This is why we’ve designed the Duo around exceptional components that deliver the warm and detailed sound that’s synonymous with vinyl, all without distorting the signal from your moving magnet cartridge turntable. The switch mode power supply improves performance by switching outside of audible frequency to drastically reduce hum and new circuit board layout uses surface-mount components to reduce noise.

    Alva Duo Moving Coil & Moving Magnet Phono Preamp headphone port

    Vinyl. Just for You

    Enjoy the warmth of vinyl privately thanks to Duo’s integrated headphone output. Uniquely, we integrated a 6.35mm headphone jack directly into the phono stage, so you can still enjoy your records when there’s no option to play out loud.

    The integrated headphone output also means no need to turn on your amplifier just to power your headphones, resulting in a more eco-friendly listening experience.

    Alva Duo Moving Coil & Moving Magnet Phono Preamp Inside Detail

    Attention to Detail

    If some records in your collection are a little worse for wear, the subsonic filter will help to eliminate low frequency rumbles that can be caused by imperfections within your vinyl. Combine this with the balance control for handling potential cartridge imbalances in your record player (that can cause a difference between the left and right channels) and the result is a detailed experience with accurate soundstage.

    Alva Duo Moving Coil & Moving Magnet Phono Preamp
    Eco Friendly

    The Duo phono preamplifier is green at heart with less than half a watt standby power consumption and auto power down feature if the unit isn’t used after a 20 minute period. This in turn gives the unit the same worldwide voltage for compatibility wherever you are in the world.

    Customer Reviews

    细节

    最大功耗

    10W

    唱头支援

    动磁式 (MM) / 动圈式 (MC)

    1KHZ 时的增益

    MM: 39dB | MC: 60dB

    标称输出

    300mV

    标称输出的灵敏度

    MM: 3.35mV | MC: 305uV

    EQUIVALENT INPUT NOISE (A-WEIGHTED)

    MM: ~0.09uV | MC: ~0.08uV

    RIAA 曲线准确度

    +/- 0.3dB 30Hz-50Hz

    接地输入的讯噪比 (20Hz-20kHz BW)

    MM: >90dB | MC: >70dB

    THD+N 1kHz (20-20kHz BW)

    MM: <0.0025% | MC: <0.20%

    输入阻抗

    MM: 47k Ohms | MC: 100 Ohms

    输入电容

    100pF

    过载余量

    >30dB

    10KHZ 时的串扰

    MM: >85dB | MC: 75dB

    尺寸(宽X高X深)

    48 x 215 x 159 mm (1.9 x 8.5 x 6.2")

    重量

    0.95kg (2.1lbs)