The headshell is from Bogner, but this is likely a "Lee Jackson" modified Marshall. (Although the possibility of Bogner's involvement isn't zero.) * Works well * Body only * AC115V specification * Power tubes: 6550 (KT88) * 1977 Marshall Please refer to the following as a reference for Lee Jackson modified Marshalls: [https://reverb.com/item/25429589-1977-marshall-jmp-2203-lee-jackson-metaltronix-mod](https://reverb.com/item/25429589-1977-marshall-jmp-2203-lee-jackson-metaltronix-mod) **[Purchase History]** I purchased this from a shop called Sound Spirits in Aomori several years ago. The shop owner said, "This is definitely a Bogner creation, based on the JMP's age, the mod details, and the sound." However, I received comments from experts pointing out that it might not be a Bogner creation. (Crying) **[About the Sound]** * It has a unique, crisp high-gain sound that I haven't heard from other amps. * It has been modified to 2 inputs, with the upper input being high impedance and the lower input being low impedance. * A 6-position click switch changes the sound from crisp to juicy. (It seems the FREQ ADJ switch changes the mid-range frequency.) * The red knob on the back is an attenuator. (Pulling it turns the attenuator ON.) **[Notes]** * The power lamp sometimes doesn't light up. (Even if it doesn't light up, it powers on and works properly.) * One washer for the back panel screws is missing. Please understand that this is a used item. Thank you.