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發表於 2019-8-15 11:31:10
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ifi iDSD Black Label Amp/DAC has been a popular performer in recent years, and today we’re taking a look at the little sibling to that unit, the rather verbosely named Nano iDSD Black Label.
The Nano iDSD has been around for a few years, a smaller version of the full iDSD, and is finally getting its own Black Label treatment. I’ve heard the larger Black Label iDSD several times before and have always found it to be a surprising performer for its price and size. It has a very dynamic and lively sound, making up for a lack of detail and true transparency with a very tastefully done warm colouration. I say this as someone who normally dislikes ‘fun’ colourations, so take that for what it’s worth.
Owing most likely to its smaller size and I suspect the intention for it to be a truly portable unit, the Nano trades the original Black Label’s single for two 3.5mm TRRS units that can be run either single-ended or balanced, if you have balanced 3.5mm cables. While ifi’s S-balanced design is technically dual-mono single-ended, they claim the design provides crosstalk-separation by eliminating the second, inverted channel amplifier and instead using a negative wire per-channel into a ground. The output impedances are listed as approximately one ohm for the headphone out and four ohms for the IEMatch out. The Amplifier is an all-discrete design without coupling capacitors and has about 235mw per-channel of power into a 30 ohm load.
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