This is the 1st Boogie Squire is seen with. This is a Mark III (simul-class). The simul-class means that you can switch from (class A) to (class AB). Again the switching is from 60w to 100w. These amps are, like the twin reverb, classed as vintage. Again we have another valve amp. They stopped making them round about the early to mid 90's I think. My one (pictured left) was made in 1986. Mesa Boogie had now become Squire's main source of sound. He would use this amp along with his other twin/s to get an awesome, massive sound. Unlike the twin, the boogie can give an overdriven clean sound at slightly lower volumes. Although mesa amps can't really be played low. The mesa has a slightly darker tone compared to the twin, so you could get a great sounding spread having both amps mic'ed up. I have played venues where the capacity is a couple of thousand and I've never had the master volume past 2.5!! Unlike the amp above, this boogie also has a rhythm 2 channel for overdrive. As before the seperate lead channel gain and master controls are the same as the mk II. This would enable Squire to get the clean sound he wanted and then set his lead channel accordingly. I don't think he really used the rhythm 2 channel.more
> Mesa Boogie evolved out of Randall Smith's experiments modding Fender amps in late '60s California. In the '70s, the Mark series of Boogie combos set a standard for high-end, high-wattage guitar amps that continues to present day. 1985 marked the start of the Mark III era which saw a few revisions. It introduced a third channel, a "crunch" rhythm sound right in between the rhythm and lead channels. This amp has a dual footswitch system: one footswitch alternates between the current rhythm mode and the lead mode, and the other selects either the clean rhythm mode or the crunch rhythm mode. The two rhythm modes share all of their controls, while the lead mode only shares the rhythm modes' , featuring independent gain and master volume controls. All Mark III's contain five 12AX7 tubes in the pre-amp section, including reverb as well. Nils' Mark III combo works, but lead drive when pulled tends to screech. It could use some love in that regard. We recommend this amp be serviced and are therefore listing it in poor condition.more
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