In my opinion it is worth extra money.It provides more balanced sound while M1 dac has anomalies in high freqeuncies responce.This is the cause why so many used of them appears on ebay. But for the price it is good dac.
A recent side by side comparison by a local publication pitted the M2Tech Young against the M1 DAC - the reviewer clearly preferred the Young to the M1, let me see if i can find the review and post a link here, not so sure about the Bryston though.
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