Japanese electronics and effects giant Roland has an enviable reputation for high quality products that dont assault the wallet. Recent marketing campaigns have informed us that the company has sold its 10 millionth BOSS compact effect pedal a phenomenal achievement by anyones standards. But it would be a mistake to think that effects pedals are Rolands only guitarbased success story. The Cube series of electric guitar amps has also proved very popular. However, this new offering, the AC-90 Acoustic Chorus amplifier, seeks to cater for gigging acoustic players as well as home strummers and enthusiasts.