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Hey folks. I took my Mark V to the shop after a total power failure and smoke smell, the whole deal. He thought it was going to be a specific diode issue that he’s seen in various Mark Vs, but it turned out to be an intermittent rectifier tube. He replaced it with a NOS Westinghouse 5U4GB and...

So I assume you guys are removing the entire chassis just to change out one preamp tube? I spoke to Mesa and they basically say to do that, or take it in to an authorized tech. REALLY? There's no way I'm going to line those little pins up without seeing them.

I love love love my Mark V. But I figured out exactly what could be better about it, and I’m wondering if tubes could make it happen. I find that the weakness of the V is that the transition to clip is a bit sudden. Compared to my Lonestar, Cali Tweed or King Snake, I find that it gets dirty...

Hey all, I finally got my hands on the rack rig that made me drool in the ‘90s, the Triaxis/2:ninety combination. Early version, SN T0126, no mods, version 2 software. It even came with a fantastic-sounding cab. BUT! I have questions… (1.) I’m hearing some clipping late in the chain, and it’s...

I’m in love with my Mark V, and I pretty much agree with the ‘It’s You’ thread. However, after a solid year and a half of working with the V, there’s one important tone I’m about to give up on trying to dial in. It’s that vintage low-gain, smooth transition into breakup, clear upper mids...

Hey Mark V people! I see there are various tube swaps out there for getting huge lead tones, but I'm looking for a specific effect: I've noticed that the Mark V channels 2 and 3 seem to go right from 'almost off' to 'distortion' without a smooth transition phase in between for those 'dirty...

I have found that Edge mode is the most useful mode on my Mark V! This weird revelation came as I realized I was looking for a ‘natural breakup’ mode for classic low-gain rhythm sounds and bluesy leads. I was shocked how much this mode liked humbuckers and singles, how well it took overdrive and...

My first time looking for tubes, please point me in the right direction for good 12AT7s. I know the market is constantly shifting because of supply. Here’s one I found: http://www.thetubestore.com/Tubes/12AT7-ECC81-Tube-Types/JAN-Philips-12AT7WC

I'm thinking of going the RJM Mini Amp Gizmo route to integrate the amp with my other gear. They sell a special cable just for using it with the Mark V. Looks like a great setup, just wondering if any of you are using it and how it's working.

I'm about to order the Mesa 2x12 vertical slant cab loaded with Vintage 30s. Any experiences with this cab? I'm a non-metal player, going for the more vintage-friendly side of the Mark V. Thanks!

OK, so I originally had a tech do a 'foot-switchable drive' mod on my LSS, announced it to you guys, and then you actually figured out how do do it yourselves and posted a how-to on this board. Nice! You are better men than I. Effectively this made the LSS into a 3-channel amp, or at least...

Huge speaker question for you V gurus... I've been renting MK V amps for awhile for sessions and I think I'm in love. The only thing is, I'm not 100% v30s are going to work for me. I'm looking for deep, glassy cleans on Channel 1 (think Lonestar, Silverface Fenders etc), great bluesy rhythm and...

I've heard many times about the compatibility of the LSS and Celestion Gold speakers, but I've never had the chance to plug in and try one out. A few questions for those of you who have... (1.) How would you describe/compare the sound, specifically against the stock Black Shadow (which I...

I'm thinking of getting a Mark V. The tones I'm into are decidedly old-school - Twins, Ac30s, Matchless, Bluesbreakers etc... In other words, the opposite of Dream Theater's super heavy vs. ultra clean vibe. I rented the amp for a week and found I could get almost anything out of it...

I had my first day with the Mk V yesterday and was generally blown away. I am not really a high gain player and was surprised to get tons of vintage-approved medium gain sounds from the amp that simply kicked ***. The only one that left me scratching my head was the Mk I mode on channel 2. I...

I'm wondering if there's a switch (Mesa or not) that will control ALL controllable things about a Lonestar: - Channel Switching - Boost - Reverb - Drive (yes, I did the Drive mod) I realize that there will probably be indicator light issues, etc, but I'd love to get it all down to one compact...

Geeks only! Anybody around here know... (1.) What exactly is happening to the circuit when you change the reverb switch between 'warm' and 'bright'? Is it filtering what goes to the reverb or the reverb itself? Etc. (2.) What exactly is happening with the 'Thick' and 'Thicker' settings? I can...

I posted this in another thread, but I thought I'd give it its own thread since I've found it so beneficial as an LSS owner: "Well, 3 years in and loving it more than ever, my experience is this: TURN THE MIDS OFF. Yup, all the way down. Mids at zero. Your settings will look stupid, and your...

Anybody else irritated by the way the reverb drops out when you switch between channels or engage the Drive control? I assume this has something to do with having a reverb level control for each channel, but I would gladly sacrifice that feature to have a smooth transition when I switch. Is it...

The 'Drive' control on channel 2 is now foot-switchable! Now I don't need an overdrive pedal........