Documents, presets, manuals Marshall DSL50 - Audiofanzine. Tube Guitar Amp Head from Marshall belonging to the JCM2000 DSL series. Marshall Amplification JCM 2000 DSL50. Manuals and User Guides for Marshall Amplification JCM 2000 DSL50. We found 1 manuals for free downloads: User manual User manual. View the manual for the Marshall JCM 2000 here, for free. This manual comes under the category Guitar Amplifiers and has been rated by 1 people With cover, manual & footswitch. - £450.00. FOR SALE! Marshall jcm 2000 dsl50 dual super lead head. Includes Marshall cover, footswitch and manual.JCM 2000. DSL50 & DSL100. Heads. Handbook. 1. Marshall Amplification plc. Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England. Tel: (01908) 375411. A JCM 900, and a JCM 2000 DSL 50. Somewhat surprised to not be able to find some PDF files of the manuals on the marshall website.