Anyone who’s attempted One by Metallica on Guitar Hero 3, will be aware of the awesomeness of Kirk Hammett’s guitar mastery. So when he puts his name to a range of amps they’re probably not to be sniffed at. Surprisingly, the first amp the Battery axe man has endorsed is a small 15 watt practice model, the Randall KH15. However, the bedroom amp is no tinny transistor. Its all-tube pre-amp and 6.5in Jaguar driver ensure a powerful sound ideal for perfecting your tapping, plus a 3-band EQ and overdrive knobs for some squealing feedback. All for £60. There’s a CD input for playing along with your chosen track and headphone jack to spare your neighbours the fiftieth rendition of Master of Puppets. When you’re ready to take to the stage, there’s a bigger brother to the KH15, the half stack KH120 (£550), giving you 120 watts of meaty chugs. Altogether now: ‘YEEAH – YEEAH!’.