What is a 100 Watt Marshall REALLY Like?

What is a 100-watt Marshall REALLY like to play? I've borrowed a 1979 Marshall JMP 100-watt Master Volume, from the guys at Coda, to find out! I'm much more accustomed to the earlier Marshall JTM45s, so this is a chance to explore a different side of the classic Marshall sound. And, of course, there's the big question: just how loud does a 100-watt Marshall actually have to be? Armed with a decibel meter, I put the master volume to the test to see whether this legendary rock amp could actually work at home. This particular amplifier started life as a JMP 2103 combo before finding its way into a head cabinet, giving us that classic 100-watt master-volume Marshall circuit. So, is 100 watts just ridiculous? Or is there something rather magical about these old Marshalls? Grab a coffee and enjoy! Let me know in the comments: have you ever owned or played one of these old JMPs? And would you choose a 100-watt Marshall over a 50-watter? Follow me on Insta @james_on_guitar Time Stamps: 0:00 Intro 1:15 Whole Lotta Something 1:41 So Harmonic 2:01 Playing 2:39 Master Volume 3:38 MV Test 5:00 Perfect Bedroom Amp? 5:45 Lower Gain Stuff? 6:17 Lower Gain Demo 6:34 Bright Cap 7:10 with Drive Pedal 7:49 Does it do that JTM thing? 8:19 Happier when Cranked? 9:27 Who Played These? 10:00 I Believe In A Thing 10:12 Beautiful Cleans? 10:55 My OK Cleans 11:58 F'ing Awesome 12:45 One Last Blast