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Lead channel right? I get that too, especially with lots of gain. I *think* it's alright.

Nice review. Thanks Shredd.

Yeah, that's a sign of overheating. Time to replace it. Btw, on the subject of using KT77 on a Mark IV, have you read Rabies's post about it?He too fried one of his KT77s. http://forum.grailtone.com/viewtopic.php?t=23664&highlight=bias Not suggesting that KT77 doesn't work, just throwing in...

Replace the fuse. If it keeps blowing then your power tubes are shot. BTW, ONLY slo blo.

In the midst of my smoking Mark IV episode I decided to take a stroll into several local music shops. Good experience to make me reflect on what a Mark IV really is. Tried a Rectoverb in there, and spent about 30 minutes. Not sure whether it's a series 1 or 2. Not really surprising compared to...

Ok, I was playing the amp for a few minutes, then I put it on stand by as I had to ease myself. When I returned there was smoke coming out of the chassis. The LEDs on the facia were blinking, and there was a loud hum coming out from the step down transformer (I'm using 220V and the amp is 110V)...

Quite an inspiring read. If you haven't already: http://www.musicianshotline.com/archive/interviews/mesaboogie_rsmith.htm

In the world of NOS 12ax7s, does long plate structure equates to microphonic?

A very interesting read. What do you think? http://www.vacuumtubes.com/6BG6.html

What tube do you guys have for V1? What do you like about it? What else have you tried? Let's hear em.

Hi all, I'm planning to buy some tubes from Doug for my IV. Just to check with you guys who have bought from him, what were the plate current he wrote on your tubes? Better yet, can you give me a suggestion what kind of plate current I should specify? I've read he'll take care of those sort...

Why not modify the wiring so that it could be switchable? You can buy the backplate for mesa cab and retrofit it in the cab. I'm not sure how the wiring would be, but it should be easy. ~trem

Hi there, I get flubby bass on R2 and lead. With R2, dialing the bass to 0 helps, but not enough. Plus on this channel it sounds like there's this annoying octave-like thingy that goes with the notes. Similar to Blackmore's rhythm tone on Speed King. Other than that, I'm beginning to like this...

Dear All, My IV A has been giving me headaches. Lately the reverb hasn't been working. When I turn up the reverb level, what I get is an overdriven sound, and a nasty one at that, even when I am on the clean channel. Tube swaps didnt help. What can I do short of going to a tech? I don't trust...

Ok guys, I found some great Stiletto clips on youtube, just in case you haven't heard them already. http://www.youtube.com/watch?v=mjpnRjI3llk http://www.youtube.com/watch?v=rtbwr_KMnWA http://www.youtube.com/watch?v=06zeDFVOq_E If you guys have better ones, please post them. I haven't found...

Not that it's needed, but was just wondering whether this is possible or not. On paper should be pretty simple no? I know that there may not be enough space on the facia to drill another two holes, but what the heck. Your thoughts? ~trem

http://www.youtube.com/watch?v=ZmcZ9C1-w1s Possible? :shock: Aw shucks. I bought the wrong amp. :lol: ~trem

I'm not particularly interested in Duncans, but I'd like to know the answer to this also. Have you tried calling them? ~trem

Hi there, I just found out that my MIV combo has a SUS-4 sticker on the inside near the speaker. How can you tell whether your Boogie combo is really equipped with a SUS-4? Do all MIV combo come standard with this feature? Thanks. ~trem

Hi all... First and foremost, I don't mean this post as a troll. Now that it's stated, I've never heard of any good/excellent high-gain lead tones from anyone using Rectos or Road Kings. I've heard a bunch of good ones using Marks (I-IV), but no Rectos, and there's a lot of record to prove it...