MV JMP Owners Club
- Thread starter YJM_Rocks
- Start date
jerryjg
PinkElephantologist
Re: MV JMP Owners Club
Hello YJM. I started marshalling when I was 20 years old. At first I just did occasionanlly and socially. Soon however I began too do marshall alone alone and before long I was Marshalling heavey and constantly. i would even wwake up in the middle of the night to Marshall.
Long story short, I am a complate marshallholic and , to be honest, i dont think Ill ever quit.
My Marshall JMP is a 1977 JMP 100 Watt MKII master Volume lead 2 vertcal Inputs.
The condition is all origiaal excellent condition, and has had the EL34 conversion along with haveing been recapped with black JJ Caps.
It also has the ubiquitous bright cap clip mod and one other simple clipped mod(diode?).Tubes are Im not sure..JJ's I think.Be nice to egt some NOS stock US made tubes in there. I do run old stock Telefunken preamp tubes in it tho!
I prefer running it through original Celestion GT-65's in a 4x12 1060A JCM800 cabinet.
Hello YJM. I started marshalling when I was 20 years old. At first I just did occasionanlly and socially. Soon however I began too do marshall alone alone and before long I was Marshalling heavey and constantly. i would even wwake up in the middle of the night to Marshall.
Long story short, I am a complate marshallholic and , to be honest, i dont think Ill ever quit.
My Marshall JMP is a 1977 JMP 100 Watt MKII master Volume lead 2 vertcal Inputs.
The condition is all origiaal excellent condition, and has had the EL34 conversion along with haveing been recapped with black JJ Caps.
It also has the ubiquitous bright cap clip mod and one other simple clipped mod(diode?).Tubes are Im not sure..JJ's I think.Be nice to egt some NOS stock US made tubes in there. I do run old stock Telefunken preamp tubes in it tho!
I prefer running it through original Celestion GT-65's in a 4x12 1060A JCM800 cabinet.
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Rich_S
HomeGrownToneBrewologist
Re: MV JMP Owners Club
Do JMP Owners pro-tem count?
My rig circa 1982. One head's a 100-watt 2203, the other's a 50-watt 2204. I can't tell which is which in the photo.
I bought the 2203 new from Manny's in New York. It had 6550's in it.
The 2204 probably had 6550's, too. I didn't play it much, it was my backup. IIRC, I obtained it along with the cabinet in a trade for a Hiwatt head and pair of Ampeg V4 cabs.
What followed was a confused period of swapping and selling, which ended up with the 2203 chassis mounted in a Marshall 2x12 combo cab with a pair of EVM12Ls, and everything else sold off. That mutt combo amp was a monster, and it served me well for several years of club gigs until it was stolen.
JMP's are IMO, the pinnacle.
Do JMP Owners pro-tem count?
My rig circa 1982. One head's a 100-watt 2203, the other's a 50-watt 2204. I can't tell which is which in the photo.
I bought the 2203 new from Manny's in New York. It had 6550's in it.
The 2204 probably had 6550's, too. I didn't play it much, it was my backup. IIRC, I obtained it along with the cabinet in a trade for a Hiwatt head and pair of Ampeg V4 cabs.
What followed was a confused period of swapping and selling, which ended up with the 2203 chassis mounted in a Marshall 2x12 combo cab with a pair of EVM12Ls, and everything else sold off. That mutt combo amp was a monster, and it served me well for several years of club gigs until it was stolen.
JMP's are IMO, the pinnacle.
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The Golden Boy
Fleecy Sweaterologist
Re: MV JMP Owners Club
I've got to dig up some old Pics...
There's my 78 50w 2204. The cabinet has housed several amps. I first got it as a 100w 2203. Someone had blocked up the vent on the top to make it look like a 50w... ?? I traded guts for another 100w amp- and somehow I ended up trading a couple of guts and ended up switching 50w guts... The back panel doesn't belong to the amp- I have no idea where it came from... like someone fabricated a 100w back panel, and didn't put the grating on... Anyway- It's ugly, but this is the best sounding of the bunch that I've had.
It's pretty much stock- no mods. It's still got the pull and turn impedance selector and hard wired power cable. It's got Svetlana 6550s. There's a Mullard 12ax-7 in the v1 spot- and I believe Sovteks in the other spots. This amp doesn't seem to be so dependent on that V-1 spot. I had a full set of old Mullards in there, and it didn't sound any different than the Sovteks or Mazdas I had been using. Go figure.
It's pretty much my favorite amp.
Then there's the 1981 Park. Model 1206 (I believe) 50w MV. One of the very last "real" Parks.
For those that don't know- in 1968ish or so, when Marshall got their distribution deal with Rose/Morris, it cut out a chain of stores that had a good relationship with Marshall. As a result the Park off brand was created. Over the years, Parks were pretty much just Marshalls with changed cosmetics.
My Park is pretty much the same amp as my 50w Marshall- except like the newer version with the dial impedance selector, the standard power cord... Just like a late series JMP. it uses the same board as the Marshall, some parts may be changed... I do know "some" work has been done to the head- I assume an effects send/return. And the dillweed drilled the holes into the chassis- and made them 'off.' Way to go.
If you can't tell from the pics, it is green tolex. In the pics I have some blue Tesla EL-34s- I don't think they make those any more. Right now, I think I've got some mismatched EL-34s (electrically matched- don't know about the brands). The V-1 and V-2 spots have old Mullard 12ax-7s, and I believe a Sovtek in V-3. This amp IS very dependent on the tube in the V-1 spot. I really didn't use to like this amp. I'd done a preamp tube swap on my Marshall with a bunch of different tubes- and nothing really made a big difference. The Park was pretty... gritty. The Mullard in V-1 smoothed it out amazingly. It's now a very good sounding amp.
(note the screw hole where the 100w chassis would mount to)
I've got to dig up some old Pics...
There's my 78 50w 2204. The cabinet has housed several amps. I first got it as a 100w 2203. Someone had blocked up the vent on the top to make it look like a 50w... ?? I traded guts for another 100w amp- and somehow I ended up trading a couple of guts and ended up switching 50w guts... The back panel doesn't belong to the amp- I have no idea where it came from... like someone fabricated a 100w back panel, and didn't put the grating on... Anyway- It's ugly, but this is the best sounding of the bunch that I've had.
It's pretty much stock- no mods. It's still got the pull and turn impedance selector and hard wired power cable. It's got Svetlana 6550s. There's a Mullard 12ax-7 in the v1 spot- and I believe Sovteks in the other spots. This amp doesn't seem to be so dependent on that V-1 spot. I had a full set of old Mullards in there, and it didn't sound any different than the Sovteks or Mazdas I had been using. Go figure.
It's pretty much my favorite amp.
Then there's the 1981 Park. Model 1206 (I believe) 50w MV. One of the very last "real" Parks.
For those that don't know- in 1968ish or so, when Marshall got their distribution deal with Rose/Morris, it cut out a chain of stores that had a good relationship with Marshall. As a result the Park off brand was created. Over the years, Parks were pretty much just Marshalls with changed cosmetics.
My Park is pretty much the same amp as my 50w Marshall- except like the newer version with the dial impedance selector, the standard power cord... Just like a late series JMP. it uses the same board as the Marshall, some parts may be changed... I do know "some" work has been done to the head- I assume an effects send/return. And the dillweed drilled the holes into the chassis- and made them 'off.' Way to go.
If you can't tell from the pics, it is green tolex. In the pics I have some blue Tesla EL-34s- I don't think they make those any more. Right now, I think I've got some mismatched EL-34s (electrically matched- don't know about the brands). The V-1 and V-2 spots have old Mullard 12ax-7s, and I believe a Sovtek in V-3. This amp IS very dependent on the tube in the V-1 spot. I really didn't use to like this amp. I'd done a preamp tube swap on my Marshall with a bunch of different tubes- and nothing really made a big difference. The Park was pretty... gritty. The Mullard in V-1 smoothed it out amazingly. It's now a very good sounding amp.
(note the screw hole where the 100w chassis would mount to)
The Golden Boy
Fleecy Sweaterologist
Re: MV JMP Owners Club
Did I mention they're pretty much the same?
Did I mention they're pretty much the same?
kjrocks
New member
BTW I didnt knock, I let myself in.
Re: MV JMP Owners Club
Hi, my name is Brandon, and I'm an addict. I play my Dragon all day, but every now and then I'll drag this sucker out and be floored. It's so ANGRY. I think it's a 1981. 100w with I-don't-know tubes as I've never had the back off, and I'm pretty sure the chickenhead knobs aren't original, but that's the only change.
Hi, my name is Brandon, and I'm an addict. I play my Dragon all day, but every now and then I'll drag this sucker out and be floored. It's so ANGRY. I think it's a 1981. 100w with I-don't-know tubes as I've never had the back off, and I'm pretty sure the chickenhead knobs aren't original, but that's the only change.
