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I also tried with an ipod, and just connecting it alone does an amazing job of improving sound quality and bass.
Overall, I was really pleased with the ZO and can highly recommend it to any consumer looking to invigorate his or her audio.
The bass gets as deep and full as I want without sounding muddy: detail is maintained across the entire frequency range.
I bought the Zo2 14 months ago and have used it casually with my headphones and, on occasion, with my speakers at home. Read morePublished 5 months ago by m peterson
This is the only nit of its kind I have ever tried. It is awesome! I use it with reg headphones or my Bose Quiet comfort and it rocks. It does enhance th sound and amplify it. Read morePublished 8 months ago by Matthew Bell
These are not designed to produce loud bass. My iPad has an app that boosts even more bass that the digizoid ZO2 on max bass settings without distortion. Read morePublished 12 months ago by Brian
This device is simply astonishing... I have a pair of the new Marshall headphones (a mid-grade set of headphones) and listening to music through my iPhone and the ZO2 sounds like a... Read morePublished 12 months ago by Jeremy Freund
This device is everything it's stated to be: it will turn any pair of (decent quality) headphones into high quality bass thumping phones. Read morePublished 14 months ago by Matthew
I love my Digizoid ZO 2 :D
The only thing that kept me from giving it 5/5 stars is the jack socket. Read more
Bought my unit a year ago. Couple of months ago the battery started to fail. I contected DigiZ and they told me I could replace it and that instructions are on-line. Read morePublished 16 months ago by M. Guyder
Whatever the smartvektor technology is, it works. The bass sounds more full and it makes me feel like the music is close to me, not distant (if that makes sense) . Read morePublished 16 months ago by FirstIpodCaseUser
Got this portable headphone amp from the Depotdealz seller here at Amazon. It is second only to Objective2 in terms of sound quality and first overall since the Objective2 can't... Read morePublished 16 months ago by Mike from Jersey