What about the current 1960 cabs? Are they constructed the same as the JCM900's? Specifically do the 2011 cabs have particle board for the cloth risers, particle board for logo mounting wood and the nasty black tolex adhesive?Scumback Speakers wrote:Um, not quite.harddriver wrote:All 1960A/B and 1982A/B cabs JCM800 thru JCM900 up till today feature the same construction methods as the mid to late 70's cabs 13 ply marine grade birch using a particle board back as the late 70's cabs did.
The JCM 900 cabs did use a nastier black tolex adhesive not clear like the JCM800 or older cabs.
Still a great value though, I picked up a JCM900 for $300 ans sold the speakers for $200.
Cab sounds as good as my 70's cabs.
Yes I had a JCM900 2x12 MDF cab it really sucked IMHO!
They use 11 ply 5/8 baltic birch plywood. Nothing I've ever seen has led me to believe it's marine grade. It's most likely standard or cabinet grade (BB1 or BB2).
The 800's had less particle board in them as used for raising the grill cloth off the baffle (baltic birch baffle, also 5/8 11 ply). The 72 cabs through the early 81 time frame had particle board back panels. The JCM 800's had particle board back panels plus logo mounting wood was particle board. The JCM 900 cabs had particle board cloth risers, logo mounting blocks and back panels.
They all had 5/8 11 ply sides.
The 800's had a clear glue used for tolex, the 900's had a VERY NASTY black glue that is totally a PITA to get off.
The 70's cabs had more/better slant baffle bracing than the 800's and 900's, with the sound post getting cut down to 2" in 73/74. Before that it was the big sound post size (2x4 or just larger) like my 69 spec or George's True Replica cabs.
Get an 800 cab if at all possible, the 900 would be a distant second choice. If you want a slant, I have one in storage that I put basketweave cloth on, but shipping from LA to you won't be cheap, probably around $190 with packing.
http://www.marshallamps.com/product_ran ... RangeId=15