Re: For Slash fans.....long post.
I'll copy and paste what the guy wrote in the thread from the LPF
Tim Caswell modded Marshall (Slash, Appetite for Destruction related topic continued)
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You might recall my recent posting on this topic - if not, check it out, so that the rest of this posting makes sense:
http://www.lespaulforum.com/forum/s...ead.php?t=86985
A couple of recent developments that have occurred since my last posting:
First of all, I was lucky enought to track down Tim Caswell's friend Bryan (Tim considers the modification he performed on Bryan's ’70s Mark II PCB model Marshall head to be his personal favorite - see my previous posting).
In order to make ends meet, Bryan was playing country music (of all things), in Las Vegas (of all places). To make a long story short, since Bryan had no use for the Marshall anymore, and, frankly, could use the cash, he reluctantly agreed to sell it to me for $1,200. As a friend of Tim and a huge fan of George Lynch (I could tell from our conversations), it was obvious that Bryan had a hard time letting the amp go, but as we all know, money talks.
When I received the amp, and opened the box, I was (initially) extremely disappointed by the cosmetic condition of the amp. It looked (and even smelled) like someone had used it as both an ash tray and a stepping stool for a urinal in a public restroom for about a decade, and then threw it off the back of a speeding pickup truck. Literally. (By the way, all this stuff was due to wear and tear by Bryan over the years - Tim's mod is actually extremely low-profile and neat in appearance - the one toggle switch is the only external noticeable difference...)
In the box, Bryan included two new (apparently unmatched) EL34's (he only ever ran the amp at 50W), and a new set of four pre-amp tubes. Yes, that's right, *four* pre-amp tubes. Part of Tim's mod is the addition of a fourth pre-amp tube where one never existed before.
So, I put the tubes in, and went down to the basement and plugged the Marshall into a stock '87 Silver Jubilee 4x12 cabinet. I flicked the mod's toggle switch into (what I believed was) the "on" position. With my trusty #1 Lester on my knee, I let an open A chord ring out.
The result was stock, ho-hum, late-'70s Marshall tone - nothing exceptional or unique by any standard. In that instant, I was absolutely crestfallen. As the A chord continued to ring out, I flicked the toggle switch to the other position, just to make sure I actually had the mod "on"...
And then Tim's mod kicked in!
It's hard to use words to actually describe the next few minutes of playing that took place between me and this Marshall. "Revelation," "extasy," and "giddy" come to mind...
I can't even begin to describe the tone of this amp. It's like trying to describe the color "blue" to someone who has only seen "red" and "yellow" in his life. I *will* say that I've never heard anything like it, in person, in my life, ever. And seriously, I've owned, and played through, many Marshalls over the years.
Have you ever taken a couple of prescription painkillers (pursuant to a legitimate medical condition and doctor's prescription, of course) and, a few minutes later, felt that tingling pleasure melt through your body? That's literally how I feel when I play this amp. There's this sensation in the center of my back between my shoulder blades, and it just resonates from there, giving pleasure to my body and soul.