I have a new love.
- Aug 25, 2011
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If you want to build 1 ??? And you want a No Compromise Kit ??? To the Specs of a Metro GMP45 ??? Which is a reverse engineered copy of a 1966 JTM45
Go to Valvestorm. They even have NOS Mustard Caps and all the other NOS thingies. Lemco's, PEC pots.
You can als ask what stuff Metro uses on their Limited Edition Series amp. Like Mine. I also believe Mallory and the New "Vintage" SOZOs are what are also available.
Their kits are second to none and the only difference in 1 of these and a Metro is that a Metro is of course put together and burned in by George himself.
Other than that if youre good enough ect you can build the best JTM45 money can buy regardless of cost, if a true to spec JTM45 is what is really wanted.
Short of going back in time, the Valvestorm kits with the Heyboer/Metro Spec transformers/Choke and NOS parts, is as close as humanly possible you can get to an original 1966 JTM45.
I believe the Best kit with the Mustard Caps ect. The GMP45 kit... With a Head Cabinet is $1300. Or somewhere around that.
I myself like the later 1966 version of the JTM45, no Tremolo, and a clone is about the only way to get 1.
Not saying it better either. Just different, The Metro GMP45 is 1 of the FEW that you can find that has the Drake type transformers and KT66s.
The Marshalls, Germinos, Wallace, and others are based on the Earlier Cleaner, Radiospares Transformers. The earlier models are a little cleaner and 8 watts less. 30 vs 38 watts. The later 1's have a bit more of a very low gain NKT275 germanium fuzz face grit when pushed into OD.
Much of the never went back deal, IMHO, was because of the quest for more power and to compete with drummers ect. Everyone in the bands when these amps were being designed, were fighting for more more more.
But with great PA's now, you can use almost anything
I guarantee though that a 30-38 watt JTM45 with 2 x 4 x 12 of some Hemp coned JBL E120s will scare many a 100 Watt Marshall with 8 x 12 original Pulsonic coned G12M 30 watt 55hz cone Celestions.
My 38 watt amp with 2 E120s is very loud. 103db x 1/w x 1/m, 300 watts worth of speakers for a 38 watt amp. Even 1 speaker is very loud and clean. Its still a 150 watt speaker 103db efficiency speaker and 38 watt amp. 18lbs magnet and 4 inch voice coil.
But then again you can take the same 100 watt amp and add the same speakers and compete with jet airplanes. 2 E120's in a small place cranked with a 100 watt amp is brutal.
I myself like the KT66 JTM45 and the KT66 JTM45/100 as my favorite amps. After that it would be either the 10,000 or 12,000 series..67-68 Plexi and the 1986 for a 50 watter.
Under 50 watt amp and I like the KT66 JTM45 /GMP45 head. I like KT66s ( Real Ones ) better than EL34's or 6550's.
I also like to run my GMP45 with a 2 x 1 x 12 cabinets with hemp coned JBL E120s. I can scare 100 watt amps. I also have some Pulsonic cone celaestions but 1 x 12s are easy to carry around, very loud and I like JBLs.
Ive got all NOS tubes in it. 2 1956 Marconi Osram KT66s. 2 Mullard Master series 10M Gold pins in v1 x v2. NOS 1956 Mu Mullard Sq Getter, Long Plate in V3 and a 1961 Mullard Fat Base GZ34/5AR4 Rectifier.
Its all but dead quiet at full volume.
You can get the same parts as shown in my amp below from Valvestorm. Also the Metro Spec Transformers and Choke.
In the photo below that also a Blackfaced 69 Dual Showman Reverb with a Dumble ODS mod on the 1st channel. The Bright Switch engages the OD Mod.
Im running the Metro in 1 cab and the Fender through the other. Running the Showman at 8 ohms cuts it back to around 55 watts and makes it a great match for the Metro.
I have so much stuff in this room I cant hardly move. But its what I have at the moment.
I also have a Sound City 4 x 12 Cabinet loaded with 4 x 12 Pulsonic Coned Fane 100 Watt Cresendos. in here, a 2 x 15 Carvin cabinet loaded with Altec Lansing 418H. A 4 x 12 Mather 1982 Oversized TVB cabinet with EC Collins Bluesbreaker cloth and 4 1972 Pulsonic coned Celestion G12M's 25 watt 75hz cones. A Fender Cybertwin and 3 times more speakers in the Attic.
Ive found the 1 x 12's and multiple 1 x 12's a breath of fresh air compared to even lugging around 2 x 12 cabinets.
Lots of good stuff here.. thanks