User manual MARSHALL JCM 2000 DSL 201

[. . . ] ENGLISH From Jim Marshall I would like to personally thank you for selecting one of our JCM 2000 Dual Super Lead valve amplifiers. Since I started Marshall Amplification in 1962 I have witnessed some incredible breakthroughs and advances in amplifier design technology, such as master volume amps, switchable channels, reverb, MIDI technology, speaker emulation and digital effects processing, to name just a few. These may seem like every day features nowadays but this certainly wasn't always the case. However, the same values that were present in the first Marshalls are still here today. [. . . ] Note: the difference between OD1 and OD2 (DSL401 only) is approx 20dB more gain on OD2. The DSL201 is preset to the gain levels of OD2 and does not have the OD1 facility. User Hint - Due to the immense amount of gain and saturation available on the preamp of the DSL401, particularly when using high output humbucker pick-ups, the 20dB difference between OD1 and OD2 may become less apparent. In this case, back off the settings of the gain control slightly until the difference becomes more useable again. User Hint - One of the beauties of using a lower power amp is that it makes the power amp distortion more easy to use and by lowering the input gain control and bringing up the channel volume control will give you a whole new load of tones to play with, as well as making the amp run quieter, especially if you use the ability of the `master volume' to emulate a lower powered amp. 3. User Hint - These controls are early on in the amplifier chain and as such not only control the tone of the Clean channel, but also how the clean channel reacts `gain' wise. For instance, if the mid control is advanced (especially with higher gain control settings) the sound will become more `singing' in a blues/traditional rock kind of way. But if the mid control is backed off towards (or even) zero the gain emphasis is placed on the treble and bass controls and gives more to work on, especially on cleaner, lower gain settings, as would be the case for country, jazz, or good old chord strumming. A good starting point is to set these three controls to their `midway' position and by experimenting with the `feel' of how they interact with the amp, build up a wide palette of tones for future use. 4. Channel Switching The channels of your DSL201 or DSL401 can either be switched from the front panel, or via an external footswitch - connection of the footswitch is described later. DSL201 - The front panel switching arrangement consists of two LEDs and a single pushswitch, to switch between either the clean (Green LED) or Overdrive channels (Red LED). DSL401 - Here the front panel switching arrangement consists of three LEDs (Green = Clean, Yellow = OD1, Red = OD2) and two pushswitches, marked CLN/OD and OD1/OD2. To select Clean the switch marked CLN/OD must be released to its out position (Green LED will be on). To select either OD1 or OD2, push the CLN/OD switch in and select either OD1 or OD2 by pushing or releasing the switch marked OD1/OD2 and the appropriate Yellow or Red LED will illuminate. Do not worry, you do not have to go through OD1 to reach OD2, these channels can be pre-selected. Remember that plugging the footswitch into the amp will override the front panel pushswitches. 6. Overdrive Volume This control adjusts the level of sound coming out of the overdrive preamp channel and allows you to balance it against the Clean channel. User Hint - To achieve the normal Marshall style heavy rock `punch & crunch' especially at lower volume levels, this control should be used to keep the volume down and the output Master Volume should be kept higher. Remember to do these two simple rules and your valves will love you for it and should last an awful lot longer before replacement is needed. ESPAÑOL 9. Master Reverb This controls the level of the internal spring reverb circuitry from a slight shimmer to a cavernous depth. DSL401 only - the reverb has the facility of being footswitchable via the rear panel socket and optional PEDL-10013 footswitch. 12. Power Switch This turns the mains electricity that feeds your amp on and off. [. . . ] By being a parallel loop, this means that the direct signal is kept within the DSL's circuit and therefore your tone is not degraded by sending it outside the amp. To use the loop connect your effects processor (rack type units are better at this job) as described earlier, turn the effects units direct signal path off (the FX units manual will tell you how to do this), set up the unit to give you the effect you require and then balance your direct sound and effected sound using the FX MIX control on the front of your amp. Floor type effects stomp boxes are designed to work in between a guitar and the input of an amp and should not be used in a parallel loop, otherwise some very weird and undesired effects could occur. For their best use, use them where they are designed to go. LOUDSPEAKER SYSTEMS The DSL201 and DSL401 combo amps are each fitted with a Marshall designed 12" loudspeaker, each one developed to work with your amp to produce the great tone that you expect from a Marshall amp. [. . . ]