The first guitar amp with Wife Acceptance Factor?
A concept hybrid that looks pretty

The Z-Amp is a rather cool-looking concept guitar amplifier designed by Aki Hirota. By casing it in a curved piece of coloured ply-wood he's inadvertently coined the phrase Wife Acceptance Factor (WAF).
Because it looks nice, your disapproving wife won't mind it taking up space in the living room, we presume. No, that's not a sexist point of view at all.
Regardless, if WAF is a priority, those protruding tubes will have to go so 'er indoors will be fooled into thinking you've brought the world's most expensive footrest.
(Via: Yanko Design)
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Tom Porter worked on MusicRadar from its mid-2007 launch date to 2011, covering a range of music and music making topics, across features, gear news, reviews, interviews and more. A regular NAMM-goer back in the day, Tom now resides permanently in Los Angeles, where he's doing rather well at the Internet Movie Database (IMDB).
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