The Good The ZVOX SoundBase 670 is well-built and will hold TVs up to 70 inches in size. Its dialogue mode really improves intelligibility, which can be a real savior for the hard of hearing. Movies sound good, and the base has plenty of inputs.
The Bad The cheaper Pioneer Sound Base has better overall sound, especially for music. It has uninspiring looks, the bass is set too high in default modes, and the faux-surround modes can't be completely turned off.
The Bottom Line The Zvox SoundBase 670 is a well-built speaker base that is great at boosting the intelligibility of TV broadcasts, but it's not the best value.
Great speaker for boosting dialogue
As Zvox will gladly tell you, the company started the sound base movement back in 2003, and it's taken till 2014 for the mainstream to catch up. A sound base is designed to sit under a TV and improve its typically terrible sonics.
The SoundBase 670 is Zvox's newest sound base and is designed to accommodate larger televisions (up to 70 inches). It offers the usual features -- Bluetooth, Dolby Digital decoding -- plus a large number of inputs. The No. 1 thing it's good at? Making dialogue more intelligible with its AccuVoice mode.
If you're looking for something that's an all-rounder, though -- which is foreseeable due to the high number of inputs this speaker accepts -- then you'll be disappointed. Music is subjected to an automatic "wide" mode and movies lack the punch of the much cheaper, currently our favorite of the breed.