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JCM900
SL-X 2100
SL-X 2500
&
Master Volume Models
&
4100, 4500, 4101, 4102, 4501 & 4502
Dual Reverb Models
Marshall Amplification plc
Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England
Tel: (01908) 375411
Fax: (01908) 376118
Web Site - http://www.marshallamps.com
Whilst the information contained herein is correct at the time of publication,
due to our policy of constant improvement and development, Marshall
Amplification plc reserve the right to alter specifications without prior notice.
Nov '98
Handbook
1
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Summary of Contents for Marshall Amplification JCM900 SL-X 2100
- Page 1 & Master Volume Models & 4100, 4500, 4101, 4102, 4501 & 4502 Dual Reverb Models Marshall Amplification plc Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England Tel: (01908) 375411 Fax: (01908) 376118 Web Site - http://www.marshallamps.com Whilst the information contained herein is correct at the time of publication, due to our policy of constant improvement and development, Marshall Amplification plc reserve the right to alter specifications without prior notice.
- Page 2 WARNING! PLEASE READ THE FOLLOWING LIST CAREFULLY A. ALWAYS fit a good quality mains plug conforming to the latest B.S.I. standards (UK only). B. ALWAYS wire the plug in accordance with the colour code attached to the mains lead (UK only). C.
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Page 3: Hi Gain Master Volume Sl-X
HI GAIN MASTER VOLUME SL-X The latest innovation from our valve designers involves the use of an extra ECC83 pre-amp valve in the gain stage of the Master Volume SL-X models. This gives a gain soaked front end that is the most extreme yet produced by Marshall and is controlled by twin gain controls, the first (item 2), from 0-10, the second (item 3), from 10-20! Combinations of these two controls can take you from classic Marshall crunch in lower positions, to pure overdriven outrage on maximum. - Page 4 NOTE: Combinations of the two gain controls (items 2 and 3) provide a wide range of clean, crunch and overdrive possibilities. Experimentation will reveal the optimum settings for each. 4 & 5. Master Volume “A” Master Volume “B” Twin footswitchable Master Volume Controls. Master “B” controls the overall volume exclusively when a footswitch is not connected.
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Page 5: Rear Panel Functions
REAR PANEL FUNCTIONS 10. Valve Failure Fuse Operates in the event of an output valve failure and The Hi Gain Master Volume SL-X and Dual prevents any internal damage to the amplifier. Reverb models feature comprehensive connection NOTE: and control facilities on the rear panel which are common to both ranges. -
Page 6: Front Panel
DO NOT USE WITHOUT CONNECTING SPEAKER LOAD Fire & Shock Hazard: Do not expose this unit to rain or moisture. HIGH COMPENSATED SEE MANUAL FOR CORRECT OPERATION AND RATING Marshall Amplification plc, LOOP Bletchley, Milton Keynes. LEVEL 9 10 11 12 13...