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The Mk II also has replicated the black rubber bumpers found in the original amps that allowed them to be temporarily set upright for shows and were big enough to prevent the model from being damaged during setup at concerts. As an homage to the original, the Mk II includes U-shaped siderails, a unique feature that provided strength and durability when the original amps were used on the road. The MC3500 Mk II is both modern and retro in its design. All the vacuum tubes are located behind the power and output transformers and are covered by a 12-gauge stainless steel wire cage.
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The MC3500 Mk II has a fully balanced driver section that utilizes three 12AX7A and one 12AT7 vacuum tube, while the output is powered by eight EL509S high-power output vacuum tubes specifically chosen due to the similarity to the 6LQ6 “sweep tubes” found in the original MC3500.
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As in the original, the MC3500 Mk II uses McIntosh’s Unity Coupled Circuit™ output transformer, allowing the full 350 Watts to be safely delivered to virtually any speaker. The reimagined McIntosh MC3500 Mk II Vacuum Tube Power Amplifier boasts 350 watts of power. The iconic McIntosh MC3500 (1968-1971) monoblock amp was recreated by McIntosh’s expert team of engineers and designers to include modern upgrades so it can be used with today’s audio components. McIntosh has updated the amplifier originally used to power the sound system for Woodstock in 1969 amongst other formative music events. I definitely saw something at the factory that made me wonder but I didn’t want to ask Mark Christensen or Charlie Randall for the details if it wasn’t really going to happen. The industrial design is definitely a mixture of old and new and it’s not something that will sit very long at dealers. The media was all excited last week about Jerry Garcia’s McIntosh amplifier being sold and the reintroduction of the McIntosh MC3500 MK II Vacuum Tube Power Amplifier is going to make the cult lose its collective minds. How some of the most celebrated McIntosh products of the past are making a comeback. I think replacing the RCA input jacks would probably fix this.Īnyway I've had this amp for a long time, and hopefully someone out there can give it a good new home.If you read between of the lines of our McIntosh Factory Tour article from last week, there are some hints about this. Sometimes the left channel goes seems like it's not working, but twisting the input cable in the RCA jack a little bit brings it back. There's scratches and wear on the paint but the chrome looks good. But if you're getting into audio and are looking for a good amp to start with, or you're looking to build a fun second system, this is a great deal! It's in good working order and I've been using it for about 18 months but knowing what I know now, I could have done a neater job on the repairs!Īnyhow, if you're looking for a museum quality vintage McIntosh, this is one not for you. This was the early pandemic, I needed music in my work space, and there was nobody around to repair my old MC-250 except myself! I ended up replacing a faulty pre-amp transistor, running new leads to the input PCB (the old connections were brittle and snapped when I removed the board) and replacing all the old electrolytic capacitors except for the big 9300 mfd ones up top.
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I'm selling this for a low price because I made some repairs on it when I was first learning how to work on this stuff.