Lincoln Aspect 375 AC/DC TIG Ready-Pak K3946-2

Saw this welder being demonstrated at Fabtech 2014. Purchased ours in July 2015.Aluminum welding: Does okay, lots of settings. Once dialed in it does produce nice welds, but some of our welders still prefer the older Precision Tig for aluminum.Steel, Stainless Steel: If you like pedal control stay far away from this welder. Has a very noticeable delay that is not worth getting used to. Took us over a year of going back and forth with Lincoln for a rep at Fabtech 2016 to finally admit there is an issue (that they do not have a fix for). It makes an odd high pitch noise while welding steel. Overall it just doesn't seem to weld steel as nice as any other welder in the shop.Longevity: Well today 2 months after the warranty expired, it fails start and smells like burnt electronics. Sending it in for service but I'm sure it's going to be like our Invertec and the part will cost as much as a new machine. We have hardly used this welder and have been trying to get our local distributor to take it in as a trade, but they don't even want it either.

An okay welder for aluminum, but awful for anything else. If you're gonna be doing steel stay away. My trade school has over 20 different welders and the aspect is the worst of the bunch.

Updated Review:After using the machine for 1-1/2 years, it still performs fairly well. Had three issues with the machine not working properly so I had to have it sent out to be serviced. Issues were the cooler stopped working and both the wired and wireless foot pedals stopped working. After sending the machine out twice, the control board was replaced. Thankfully it was still under warranty. Haven’t had a problem with the cooler or the wired foot pedal since, but the wireless foot pedal still doesn’t work. Bought a second wireless foot pedal which worked for a short time, but then stopped working. Overall, still pleased with the welder.Original Review:This machine has surpassed any other TIG welding machine I've ever used. I've been welding for many years and this is by far the best TIG welding machine I've ever used! In the past I've always used old transformer machines, so I was worried about switching to an inverter welder. Since I'm a Miller advocate, I decided to compare this machine to the Miller Dynasty 350. After testing both machines for several weeks, both gave me identical results. Sure the Miller has more memory settings and the Lincoln has 25 more amps plus an automatic high freq setting for aluminum, but those features had absolute no influence on my decision. What it boiled down to was the price. Both machines are excellent quality, but that $3000 price difference (rough number) was not worth spending to have a Miller machine.Also, not sure about the other review on here, but this machine works awesome with all metals - stainless, aluminum, & carbon! It's possible the other reviewer hasn't been welding very long or doesn't understand this machine or the settings. Once you learn the settings and how to control your weld you'll love!The only con of this machine is not knowing the longevity. It's an inverter machine and I've read they don't last that long, so I'll post an update after using this machine for quite some time.Machine tested on 3 Phase 220V.

I'm a professional Welder that has run most machines out there. As far as tig welding goes these are the worst tig machine I have ever run. Do yourself a favor and get the miller dynasty 350 if you want to get this grade of tig welder. They run way better and they are cheaper.