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Hi there guys, I'm planning on buying a Rectifier 1x12 Mini Cab to pair it with my Mark IV Combo. My question is how can I hook it up to the combo? Is it possible to use them both at the same time? Thanks

PM me your offers.. I also accept an empty cab.. I have a celestion vintage lying around ready to fire hehe..

nice make over.. whats the height of the head?

please click link for the thread.. thanks!.. :D http://forum.grailtone.com/viewtopic.php?f=6&t=55627

i've experienced this with my mark iv-a.. same problem.. just brought my amp to my local amp tech and he just cleaned the switching matrix.. he did remove it and scrape maybe dust from the contacts?.. then boom! back to normal :D

nice footswitch.. im currently finding a schematic for my mark iv. I would like to diy a footswitch so that i can control the CLASS A/SIMUL CLASS external switching. would you mind posting your schematics? thanks

ok.. so now i bought a keeley ts9dx to boost my LD channel to achieve JP's tone.. i dialed in his TS9DX settings seen in the gear page. so my setup is Guitar -> Keeley TS9DX -> Mark IV -> (Nova System loop).. Guitar is an Ibanez Prestige 1527 loaded with CL7 + LF7 combo.. it came close to his...

you can see them on the gear page of JP's site.. browse for the old gear pics.. :D

here it is.. :D http://www.youtube.com/watch?v=Ot-zal0DAu4 http://www.youtube.com/watch?v=VQEG1HqCrnE&feature=related

ok.. so i just watched the mesa boogie video again and reviewed his systematic chaos rig settings.. and here's what i have found.. - his 1st head has a setting of drive at 10.. I think this is his main head for his CRUNCH. - the 2nd head has a setting of drive at 7.5.. I think he dialed in his...

the crunch tone of petrucci in this song is very MARK IV'ish to me.. am i correct? Very close to my mark iv settings that are set based on JPS's settings for the BCSL tour Mark IV rig pic. :lol:

Im planning on doing a DIY 1 x 12 Rectifier Cab made of Mahogany Hardwood for my Mark IV Combo. Can anybody here help me by showing the internals of the cab? and the thickness of the wood used?.. I think the thickness of the wood used is 3/4+3/8 glued together? am i right?.. How about the...

I've been researching his amp and noticed the Lead1 Lead2 sticker infront and at the back of his amp. The class a external footswitch has been labeled Lead1/2. By watching his mesaboogie rig video of his mark iv, he said that his lead has more gain than his crunch channel and the + on his pedal...

Yeah! My mark iv is in great condition again. My tech checked all the LDR and all are working just fine. The problem seem to came from the switching matrix. My tech just pulled the 2 small thingy's out and cleaned the contact parts.. and it was good to go.. my tech told me that if there was...

I see. I hope thats the case. Just waiting for my tech's call. Thanks so much GD_NC

This!!.. thats all the symptoms!..and in proper order which i've experienced haha.. will bring it tomorrow to my local amp tech.. does Mesa sell those LDR's for my mark iv?.. I also remembered changing my speakers to a vintage 30. I thought that was the culprit but i think is far off to be the...

While I was playing this morning, i noticed my lead channel drop its power and LED light seem to die. And now. when Im on Channel 1 or 2. THe Lead channel's LED light is still lit on. Btw when i turn on the amp once in awhile my footswitch for the LEAD+EQ channel doesnt work but I here a boosted...

Mine is silent. My lead gain is on 8.. i think your amp needs a visit with your tech..

i've experienced this with my DC-3.. i think it has to do with the amp's LDRs..

Just reviving an old thread. Do anyone have any other high res pics of jp's rig with his mark iv?.. im trying to dial in some of his settings.. thanks a lot.