Jcm 800 Vs. Jmp

wareagle · 10-26-2008, 10:28 AM

hi! im a new member here, i have an opprotunity to buy a new amp but have found these 2 as my favs

JCM 800, 1984, 2204, head.
OR
JMP 100 watt, 1978, Super Lead Plexi, MKII, combo.

Just before u guys help me decide, is there any diff between a jcm 800 and a jcm800 mkII? are all jcm 800s mkII's? btw i play classic rock, and loads of ozzy. i dont like too much distortion ala jcm 900, jcm 2000...ect, i dont like the reissue's heard they fall apart, but tone wise are ok. lets also say they are the same price so price isnt a factor. i hate when the sound fades also. i like sustain. also assume that the jmp is coming with a distortion pedal and a overdrive, and the jcm with an overdrive. any suggestions?

HOT TUBES 70 · 10-26-2008, 05:27 PM

i would go with the JCM 800 , its more the sound your looking for , not that a JMP
could not do it , but the 800 is the sound of the 80's rock , also that JCM 800 is
a great amp to mod if you wish in the future. i also seldom use a pedal in front of
my amps , it thins the tone ...... IMO.

wareagle · 10-26-2008, 11:24 PM

ye thts true. is ther any diff between a combo and a head, being both are the same model and all tht?

pinto79 · 10-27-2008, 04:50 PM

From the description, it sounds to me like the 800 is a MV and the JMP is not... two different worlds.

wareagle · 10-27-2008, 06:00 PM

whats a MV?

steelhorse · 10-27-2008, 07:40 PM

Master Volume

wareagle · 10-27-2008, 08:14 PM

nope. not a master volume, its the single channel non master volume one. i think...it has presenance, treble, bass, middle, normal, and pre amp, thats it.

wareagle · 10-28-2008, 09:12 AM

is mv good or bad?

steelhorse · 10-28-2008, 12:59 PM

imo it's a good thing though I'm sure others may feel differently for certain reasons.

wareagle · 10-28-2008, 04:38 PM

does it mess with tone, i heard that somewhere. i also find i dont like the sustain on the 800. it fades fast. idk if it needs new tubes but it just fades, the jmp doesnt.

G.A.S Man · 10-29-2008, 02:22 AM

Hey there, i actually have both amps, i have a 1979 master volume JMP 100 watt superlead head with a 1960a classic 4x12 cab, I also have a 1985 2204 JCM800 head (vert inputs toggle power and standby switches) with the matching jcm 800 cab. Lemme tell ya to my ears BIG difference, if your not playing huge venues the 100watt jmp is not a great choice, even though its a master volume to get the angus young spank you have to go past nuts and into insane on the volume! I believe ive killed squirrels and small dogs with the damn thing. To be the 800 is the perfect beast awesome response and you can get it pushed without blowing eardrums, im actually thinking of selling my jmp and getting another 800. But thats my views and ive been know to be wrong.

steelhorse · 10-29-2008, 03:16 AM

If you dig Zakk & Ozzy the JCM 800 is definitely the one. As far as sustain goes I believe Zakk uses 6550's in his 800's and of course the highly touted Zakk OD pedal which he claims gives him lots of sustain.

wareagle · 10-29-2008, 07:47 AM

hmm...o btw neither amps are master volumes. what im gona do is go back to both shops, try the jmp with a distortion and overdrive and the jcm with some overdrives and see.

steelhorse · 10-29-2008, 12:58 PM

or you could buy my brand new DSL100

With a set of KT77's in there it will get that crunch and vibe.

Doomhawk · 10-29-2008, 01:41 PM

actually both amps are Master Volume. if it has a pre amp knob its master volume. and maybe you need to think more along the lines do you need a 50w or a 100w. the jmp is 100w (2203) the 800 is a 50W (2204). the 50w will break up faster and get you to that creamy overdrive faster. both amps will be really loud. so my advise is to just turn them both up and rock and then see which one you like. try not to use a pedal in front. because if you going to use distortion pedals for your sound, you should just buy another amp all together.

steelhorse · 10-29-2008, 02:21 PM

I agree about the pedal thing Doomhawk, but a few folks think I'm nuts when I suggest that.

wareagle · 10-29-2008, 03:11 PM

i was going to with the jmp, its in a small store, the jcm is in sam ash.... the jmp isnt a master, i saw it. it had 2 volumes, no preamp. the jcm 800 didnt have a master unless the "normal" which is the only volume knob is it. both single channel, both rockin. im gona try both again thursday.

Chadman · 10-29-2008, 04:19 PM

Quote:

Originally Posted by wareagle

hi! im a new member here, i have an opprotunity to buy a new amp but have found these 2 as my favs

JCM 800, 1984, 2204, head.
OR
JMP 100 watt, 1978, Super Lead Plexi, MKII, combo.

Just before u guys help me decide, is there any diff between a jcm 800 and a jcm800 mkII? are all jcm 800s mkII's? btw i play classic rock, and loads of ozzy. i dont like too much distortion ala jcm 900, jcm 2000...ect, i dont like the reissue's heard they fall apart, but tone wise are ok. lets also say they are the same price so price isnt a factor. i hate when the sound fades also. i like sustain. also assume that the jmp is coming with a distortion pedal and a overdrive, and the jcm with an overdrive. any suggestions?

I have a Reissue JCM 800 (2203) it's very solid and sounds great!

mmorse · 10-30-2008, 02:22 PM

Quote:

Originally Posted by wareagle

i was going to with the jmp, its in a small store, the jcm is in sam ash.... the jmp isnt a master, i saw it. it had 2 volumes, no preamp. the jcm 800 didnt have a master unless the "normal" which is the only volume knob is it. both single channel, both rockin. im gona try both again thursday.

If the JCM 800 doesn't have a master, than it is NOT a 2204. How many inputs does it have 2 or 4? Here's a pic of a 2204:

http://insideamplifiers.com/wp-conte...3022008006.jpg

This one is pre 1984 as it has vertical inputs. If the head you are looking at has 4 inputs and is 50 watts, then it's a 1987. Model number not the year. Those are pretty rare. Most JCM800s are the MV types. Something to think about.

wareagle · 10-30-2008, 06:11 PM

ye thts it. 2 inputs, side by side. it has normal and preamp. is normal master? im guessing master is the only volume control. the jmp is definatly non master. they didnt even make master volumes until the 80s right?

Doomhawk · 10-30-2008, 06:23 PM

the made them in the 70's as well. if it is a jmp with 2 inputs its master volume. the pre amp knob is your gain. the volume is well...volume. hope this helps. both amps are completely awesome by the way. which ever one you get if you decide on one, will be a great amp and a good investment.

mmorse · 10-30-2008, 06:26 PM

Quote:

Originally Posted by wareagle

ye thts it. 2 inputs, side by side. it has normal and preamp. is normal master? im guessing master is the only volume control. the jmp is definatly non master. they didnt even make master volumes until the 80s right?

They should be labeled Master and Pre amp. You can see a diagram of the front panel here:
Marshall Amps :: Heritage

The first MV Marshalls were JMPs and showed up late '75 with the first full production year being '76.

wareagle · 10-30-2008, 06:53 PM

the jmp is clean, 4 imputs, non master.

wareagle · 10-31-2008, 11:26 PM

what about this? jcm 800 the one i was talkin about, vs. a slp reissue? is ther a reason the slp's are so good?

10-26-2008, 10:28 AM	#1 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Jcm 800 Vs. Jmp hi! im a new member here, i have an opprotunity to buy a new amp but have found these 2 as my favs JCM 800, 1984, 2204, head. OR JMP 100 watt, 1978, Super Lead Plexi, MKII, combo. Just before u guys help me decide, is there any diff between a jcm 800 and a jcm800 mkII? are all jcm 800s mkII's? btw i play classic rock, and loads of ozzy. i dont like too much distortion ala jcm 900, jcm 2000...ect, i dont like the reissue's heard they fall apart, but tone wise are ok. lets also say they are the same price so price isnt a factor. i hate when the sound fades also. i like sustain. also assume that the jmp is coming with a distortion pedal and a overdrive, and the jcm with an overdrive. any suggestions?

10-26-2008, 05:27 PM	#2 (permalink)
HOT TUBES 70 Senior Member Join Date: Oct 2008 Location: SASKATOON Posts: 1,675	Re: Jcm 800 Vs. Jmp i would go with the JCM 800 , its more the sound your looking for , not that a JMP could not do it , but the 800 is the sound of the 80's rock , also that JCM 800 is a great amp to mod if you wish in the future. i also seldom use a pedal in front of my amps , it thins the tone ...... IMO.

10-26-2008, 11:24 PM	#3 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp ye thts true. is ther any diff between a combo and a head, being both are the same model and all tht?

10-27-2008, 04:50 PM	#4 (permalink)
pinto79 Senior Member Join Date: Aug 2008 Location: Delta, B.C., Canada Posts: 131	Re: Jcm 800 Vs. Jmp From the description, it sounds to me like the 800 is a MV and the JMP is not... two different worlds.

10-27-2008, 06:00 PM	#5 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp whats a MV?

10-27-2008, 07:40 PM	#6 (permalink)
steelhorse Senior Member Join Date: May 2008 Posts: 3,888	Re: Jcm 800 Vs. Jmp Master Volume __________________ www.ricojronline.com 760-956-6619 Garmopat Pedal Mods "I wouldn't mind hearing your head smash through a glass door. That would be cool..." luekmeyer

10-27-2008, 08:14 PM	#7 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp nope. not a master volume, its the single channel non master volume one. i think...it has presenance, treble, bass, middle, normal, and pre amp, thats it.

10-28-2008, 09:12 AM	#8 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp is mv good or bad?

10-28-2008, 12:59 PM	#9 (permalink)
steelhorse Senior Member Join Date: May 2008 Posts: 3,888	Re: Jcm 800 Vs. Jmp imo it's a good thing though I'm sure others may feel differently for certain reasons. __________________ www.ricojronline.com 760-956-6619 Garmopat Pedal Mods "I wouldn't mind hearing your head smash through a glass door. That would be cool..." luekmeyer

10-28-2008, 04:38 PM	#10 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp does it mess with tone, i heard that somewhere. i also find i dont like the sustain on the 800. it fades fast. idk if it needs new tubes but it just fades, the jmp doesnt.

10-29-2008, 02:22 AM	#11 (permalink)
G.A.S Man Junior Member Join Date: Oct 2008 Location: Kingston Ontario Posts: 1	Re: Jcm 800 Vs. Jmp Hey there, i actually have both amps, i have a 1979 master volume JMP 100 watt superlead head with a 1960a classic 4x12 cab, I also have a 1985 2204 JCM800 head (vert inputs toggle power and standby switches) with the matching jcm 800 cab. Lemme tell ya to my ears BIG difference, if your not playing huge venues the 100watt jmp is not a great choice, even though its a master volume to get the angus young spank you have to go past nuts and into insane on the volume! I believe ive killed squirrels and small dogs with the damn thing. To be the 800 is the perfect beast awesome response and you can get it pushed without blowing eardrums, im actually thinking of selling my jmp and getting another 800. But thats my views and ive been know to be wrong.

10-29-2008, 03:16 AM	#12 (permalink)
steelhorse Senior Member Join Date: May 2008 Posts: 3,888	Re: Jcm 800 Vs. Jmp If you dig Zakk & Ozzy the JCM 800 is definitely the one. As far as sustain goes I believe Zakk uses 6550's in his 800's and of course the highly touted Zakk OD pedal which he claims gives him lots of sustain. __________________ www.ricojronline.com 760-956-6619 Garmopat Pedal Mods "I wouldn't mind hearing your head smash through a glass door. That would be cool..." luekmeyer

10-29-2008, 07:47 AM	#13 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp hmm...o btw neither amps are master volumes. what im gona do is go back to both shops, try the jmp with a distortion and overdrive and the jcm with some overdrives and see.

10-29-2008, 12:58 PM	#14 (permalink)
steelhorse Senior Member Join Date: May 2008 Posts: 3,888	Re: Jcm 800 Vs. Jmp or you could buy my brand new DSL100 With a set of KT77's in there it will get that crunch and vibe. __________________ www.ricojronline.com 760-956-6619 Garmopat Pedal Mods "I wouldn't mind hearing your head smash through a glass door. That would be cool..." luekmeyer

10-29-2008, 01:41 PM	#15 (permalink)
Doomhawk Senior Member Join Date: Aug 2008 Location: New York Posts: 133	Re: Jcm 800 Vs. Jmp actually both amps are Master Volume. if it has a pre amp knob its master volume. and maybe you need to think more along the lines do you need a 50w or a 100w. the jmp is 100w (2203) the 800 is a 50W (2204). the 50w will break up faster and get you to that creamy overdrive faster. both amps will be really loud. so my advise is to just turn them both up and rock and then see which one you like. try not to use a pedal in front. because if you going to use distortion pedals for your sound, you should just buy another amp all together.

10-29-2008, 02:21 PM	#16 (permalink)
steelhorse Senior Member Join Date: May 2008 Posts: 3,888	Re: Jcm 800 Vs. Jmp I agree about the pedal thing Doomhawk, but a few folks think I'm nuts when I suggest that. __________________ www.ricojronline.com 760-956-6619 Garmopat Pedal Mods "I wouldn't mind hearing your head smash through a glass door. That would be cool..." luekmeyer

10-29-2008, 03:11 PM	#17 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp i was going to with the jmp, its in a small store, the jcm is in sam ash.... the jmp isnt a master, i saw it. it had 2 volumes, no preamp. the jcm 800 didnt have a master unless the "normal" which is the only volume knob is it. both single channel, both rockin. im gona try both again thursday.

10-30-2008, 06:11 PM	#20 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp ye thts it. 2 inputs, side by side. it has normal and preamp. is normal master? im guessing master is the only volume control. the jmp is definatly non master. they didnt even make master volumes until the 80s right?

10-30-2008, 06:23 PM	#21 (permalink)
Doomhawk Senior Member Join Date: Aug 2008 Location: New York Posts: 133	Re: Jcm 800 Vs. Jmp the made them in the 70's as well. if it is a jmp with 2 inputs its master volume. the pre amp knob is your gain. the volume is well...volume. hope this helps. both amps are completely awesome by the way. which ever one you get if you decide on one, will be a great amp and a good investment.

10-30-2008, 06:53 PM	#23 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp the jmp is clean, 4 imputs, non master.

10-31-2008, 11:26 PM	#24 (permalink)
wareagle Senior Member Join Date: Oct 2008 Location: new york Posts: 323	Re: Jcm 800 Vs. Jmp what about this? jcm 800 the one i was talkin about, vs. a slp reissue? is ther a reason the slp's are so good?

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