Bassmachine Posted May 6, 2016 Share Posted May 6, 2016 Hi mates I have some years this awesome preamp and i m wondering if anyone knows when this preamp made. There is no date inside or anywhere else only this sticker Thanks Steve Quote Link to comment Share on other sites More sharing options...
markorbit Posted May 6, 2016 Share Posted May 6, 2016 Looks like a Mk V. Think I bought one of these in about 1990. Quote Link to comment Share on other sites More sharing options...
Bassmachine Posted May 6, 2016 Author Share Posted May 6, 2016 It's a Mkv But I don't know the year of made Quote Link to comment Share on other sites More sharing options...
Dad3353 Posted May 6, 2016 Share Posted May 6, 2016 Isn't mid-late '80s close enough..? Does it make a difference..? Just curious. Quote Link to comment Share on other sites More sharing options...
Bassmachine Posted May 6, 2016 Author Share Posted May 6, 2016 Ι don't know to be honest Quote Link to comment Share on other sites More sharing options...
Grand Wazoo Posted May 6, 2016 Share Posted May 6, 2016 Late 80's. This model was upgraded in 1991 with the inclusion of their popular dual compressor on the right hand side of the panel Quote Link to comment Share on other sites More sharing options...
ahpook Posted May 6, 2016 Share Posted May 6, 2016 Any clues on the back panel ? Quote Link to comment Share on other sites More sharing options...
VTypeV4 Posted May 7, 2016 Share Posted May 7, 2016 I think the series 6 models came in '89 and I'm sure I've seen an old advert in a copy of guitarist from about '86 saying 'next generation' with a number of MK5 series amps so I'd have thought your GP11 would be between those dates.. As a foot note, series 6 and all following (SMX etc) went to 12 band EQ from 11 band with addition of the 30Hz slider. Quote Link to comment Share on other sites More sharing options...
verb Posted May 7, 2016 Share Posted May 7, 2016 The GP11 MKV wiring schematic I have is dated 2.12.86 Quote Link to comment Share on other sites More sharing options...
TrevorR Posted May 8, 2016 Share Posted May 8, 2016 (edited) [quote name='VTypeV4' timestamp='1462580422' post='3044220'] I think the series 6 models came in '89 and I'm sure I've seen an old advert in a copy of guitarist from about '86 saying 'next generation' with a number of MK5 series amps so I'd have thought your GP11 would be between those dates.. As a foot note, series 6 and all following (SMX etc) went to 12 band EQ from 11 band with addition of the 30Hz slider. [/quote] I bought my Series 6 in 1988 or 89 when they first came out so pre that by a few years. Edited May 8, 2016 by TrevorR Quote Link to comment Share on other sites More sharing options...
TheGreek Posted May 9, 2016 Share Posted May 9, 2016 I've found them very helpful: [email protected] Quote Link to comment Share on other sites More sharing options...
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