Spark Live could have been aimed squarely at electric guitar players, but Positive Grid wants to go further and offer a live and practice solution for bassists, vocalists and acoustic guitarists too.
Guitar World on MSN
I've been using Positive Grid's Spark Neo guitar amp headphones for weeks – and it's got me playing a lot more regularly
Guitar-specific headphones meet a wireless transmitter, and it's all tied together with Positive Grid's Spark app ...
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