Foxrox Octron 2 review By MusicRadar published 13 February 08 $299 Up and down octaves in one analogue stompbox
MXR M-228 Bass Octave Deluxe review By Roger Newell published 12 April 10 £239 Superior octave sounds for double the fun
Burford Electronics The Reefer review By Music Radar Team published 11 December 07 £69 An electric sitar simulator from UK boutique builder
Jim Dunlop Heil Talk Box review By Total Guitar published 3 June 08 £209 $308.43 Prepare to enter the Twilight Tone Zone...
Darkglass Duality Dual Fuzz Engine review By Mike Brooks published 11 January 17 £190 €235 $299.95 Getting downright dirty with a double dose of fuzz
TC Electronic Mimiq Doubler review By Ed Mitchell published 15 December 16 £129 €122 $194 Go forth and multiply (your guitar parts)
Electro-Harmonix Pitch Fork review By Michael Brown published 11 April 15 £113 €130 $175 EHX puts in a shift
Fishman Platinum Pro EQ review By Dave Burrluck published 1 March 15 £289 €354 $399 A multi-function acoustic preamp