If you're referring to the 2204 JMP, I've seen a few in good condition sell for around $1,800 to $2,000
For what it’s worth, and it’s probably not much, I’ve been seeing asking prices anywhere from 2 to 3k. I have no idea what they sell/sold for soooo,.... I guess I was right,...it’s not worth much.
Welcome to the forum My 2104 was the same amp but a 2-12 combo, I have no idea what the actual worth is , but they are great amps !!! Cheers Mitch
There's a few on Reverb. $2-3k range asking price - just got to find someone who wants to pay that. Marshall JMP 2204 Master Model Mk2 Lead 50-Watt Guitar Amp Head 1975 - 1981 | Reverb
Given the artificial displacement of our normal way of life and the real derailment of the supply chain, there is a market upheaval for used amps, pedals, guitars, etc. that may not apply to the unemployed guy selling on craigslist who needs to cover rent in 2 weeks, so there is a lack of uniformity, but the one thing one can say with authority is that prices are consistently inconsistent.
People are asking crazy prices for JMPs and JCM 800s. I think there’s still a 2204 on my local CL for 2400!
I did not say I paid those prices, but that I've recently seen a few being sold around those amounts. So someone has been willing to go that high. I bought my '79 JMP 2203 for $750 in 1991
I also own a 1979 JMP 2104 (2204 combo). The 2204 Heads seem to sell for a few hundred dollars more than the Combos. In my experience and location prices per below: Heads $1500 - $1900 Combos $1400 - $1600
Hate to break it to you guys, but the market has been long overdue on a correction. 2203x sells for $3,149 and is not the same as the original 800, much less the JMP. Take a late-‘70 Norlin era Gibson and compare it to its ‘21 cousin. The Norlin is generally as much, if not significantly more notwithstanding the bad rep for that time period. This was the (second) golden age of Marshalls. Get used to JMPs jumping out of the $2k market and JCMs starting to jump in.