Ok, now Im confused: JCM900 Dual Reverb with SLX board?

Clockworkmike

Clockworkmike

Ambassador of STACKS in WV SHACKS
Country flag
Earlier this year, i took an amp to the gentleman in this video to get some repair work done and have followed him a good bit since.

Yesterday he uploaded a video repair of a JCM900 Dual Reverb 5881 but he refers to it as an SLX. In the video, the board IS actually listed with the serial numbers of an SLX. But ive actually owned both of these amps and still have the SLX and they are worlds apart in every sense of the word, namely a dual channel reverb vs a single channel hi gain master volume non reverb.

Does anyone have any info on this? Because this confused the hell out of me lol

 
Clockworkmike said:
Earlier this year, i took an amp to the gentleman in this video to get some repair work done and have followed him a good bit since.

Yesterday he uploaded a video repair of a JCM900 Dual Reverb 5881 but he refers to it as an SLX. In the video, the board IS actually listed with the serial numbers of an SLX. But ive actually owned both of these amps and still have the SLX and they are worlds apart in every sense of the word, namely a dual channel reverb vs a single channel hi gain master volume non reverb.

Does anyone have any info on this? Because this confused the hell out of me lol

Click to expand...
I'm not sure what you are asking.
What do you want to know?
 
67plexi said:
I thought the guy was straight froward, confused how ??
Click to expand...
Amp Mad Scientist said:
I'm not sure what you are asking.
What do you want to know?
Click to expand...
Confused as to how that amp in the video is a SLX. For all i have ever seen and owned , its a 4100 Dual Reverb which is a different amplifier. The name even says it right on the front panel, the controls are clearly split channels with reverb. Thats not any SLX i ever heard of or seen, unless i missed something and Marshall produced some elusive amplifier under the radar.

Or is this some conversion done beforehand? But id imagine that took a lot more work than one would think and judging by how clean the amp is, id say that is a low possibility

Exhibits A and B: compare these to the amp in the videorzju0rsgigsqkor9wfdi.jpg
tspwzeyaus1lzxdtb7hl.jpgrzju0rsgigsqkor9wfdi.jpg
 
Last edited:
Clockworkmike said:
Confused as to how that amp in the video is a SLX. For all i have ever seen and owned , its a 4100 Dual Reverb which is a different amplifier. The name even says it right on the front panel, the controls are clearly split channels with reverb. Thats not any SLX i ever heard of or seen, unless i missed something and Marshall produced some elusive amplifier under the radar.

Or is this some conversion done beforehand? But id imagine that took a lot more work than one would think and judging by how clean the amp is, id say that is a low possibility

Exhibits A and B: compare these to the amp in the videoView attachment 51209
View attachment 51208View attachment 51209
Click to expand...
Throughout the years Marshall has produced a number of "crossover" models (also called transition models)
which combine features of old and new amplifiers.
They also did the same thing when they produced the first 800 series - which was essentially a 1959 Super Lead in a JCM 800 chassis without a master volume.
There are a number of these transition models out there, although they are not super common. We see them pop up once in a while.
So don't be confused, it's just how Marshall makes the crossover between older and newer - they use up the remaining older parts in the newer chassis....etc etc...
 
Amp Mad Scientist said:
Throughout the years Marshall has produced a number of "crossover" models (also called transition models)
which combine features of old and new amplifiers.
They also did the same thing when they produced the first 800 series - which was essentially a 1959 Super Lead in a JCM 800 chassis without a master volume.
There are a number of these transition models out there, although they are not super common. We see them pop up once in a while.
So don't be confused, it's just how Marshall makes the crossover between older and newer - they use up the remaining older parts in the newer chassis....etc etc...
Click to expand...
Ok i can buy that. And thanks for clearing this up! Thats what was confusing me.

Seems though that they would attempted this with the MKIII frame vs the Dual Reverb, due to layout, design features and the namesake itself ( Hi Gain Master Volume) with the MK3 being virtually indistinguishable to the SLX cosmetically and much closer to its circuitry. I know by 1993, the SLX was the only other 900 option besides the Dual Reverb as they ended production in late 1992 on the MK3
 
eSGEe said:
THe best way to repair a Marshall.....is simple.
Send it to me.
Go and purchase a new amp-- and forget about the broken one you sent here ....I will dispose of it properly ;)
Click to expand...
the plans were foiled to retire. thought we would be jamming the swamps up by now , with you & hack. Think a new plan is in the works..but it involves a house in a 55+ community in Sebring for part time residence..what the hell am i going to do in there...lol...its a middle unit. The worlds bestes ISO box will be built..might have to come find you guys to unleash the volume !! Mrs will want to stay..i will be going nutz to get back to the gear room in PA
 
You must log in or register to reply here.
Back
Top