Not much to say more than the previous owner, except that it came forth in 1987 the Silver Jubille original, and this new edition date of 96-97.
I bought a year ago and a half in a small shop that had nine years (a client tried from time to time and that's it). 4500 nine F, without the 4 * 12.
There is a "nice" imitation snakeskin bag to protect it from dust.
The output that was set to 4 ohms, it potentially allows to connect 4 bowls of 16ohms ... I never tried.
Personally, I play almost always 50Watts (I have used 100 watts in a room de1000 + people).
Simple, effective. One thing: the line-out is really rotten (useless).

UTILIZATION

With this amp, the sound was at once: two buttons you turn and go.
This is an amp "old", not a gas plant: presence, 3 band EQ, master volume, channel volume, input gain. That's it. No reverb.

SOUNDS

I had a JCM2000 DSL, I use jcm 600, 800, and 900 quite often: the Slash / Jubilee is my favorite (the 800 is very good too).
I play it with a Gibson LP Studio '95 and a '97 Gibson SG-I.

OVERALL OPINION

This is the kind of amp that you do not resell. I have it forever (unless I was starving).
One problem with: the sudden drop and come back any way - some welds were sold (recurrent problem in Marshall). A short tour in the technician everything back in order.
I love it so much that if I found a combo, or the format of short chassis Silver I buy it.