pickups will require extra bass and middle to give the sound more body, but humbuckers may well require less middle and extra treble to cut through.

Vintage Overdrive

Switch to the Overdrive channel which is indicated by the Red L.E.D. Again pickups will obviously influence settings but you will probably find that gain settings of around 5 or 6 are quite adequate, the key however is to increase the master volume level. As our vintage amps didn’t really have a lot of pre-amp gain guitarists used to crank the volume up to be heard which resulted in the natural classic Marshall overdrive roar. Alternatively the Clean Channel with its volume on maximum gives a very satisfying vintage type overdrive.

As far as tone settings go we would suggest that you start with the tone controls set at about 5 and then adjust to taste from there. The selection of tone settings for single coil or humbucking pickups will follow the same general pattern as for the clean sound.

Modern Hi-Gain

Switch to the Overdrive channel indicated by the Red L.E.D.

Turn the gain up to full and set the volume for the desired level. Tone controls are set to taste, though probably with the Middle control lower than the Bass and Treble controls particularly to maintain the definition when using humbucking pickups.

The best advice we could really offer is to simply experiment and above all enjoy the pure valve tone of your Marshall JCM 600 amplifier.

JCM 601, 602 & JCM600 Head

Front Panel Functions

 

1) Footswitch Jack

7) Treble Control

Jack socket for connection of P801 Footpedal

Controls the upper or treble frequencies in the

for channel switching.

tone of the Clean channel.

ENGLISH

2) Push Channel Switch

Push switch for panel switching of the channel. The push switch is inoperative when the footswitch is connected.

3) Input Jack

Jack socket for the input of the guitar.

4) Volume Control

Controls the Volume of the Clean channel.

5) Bass Control

Controls the lower frequencies or bottom end in the tone of the Clean channel.

6) Middle Control

Controls the middle frequencies and fatness of the tone of the Clean channel.

8) L.E.D.

Indicates channel. Green-Clean. Red- Overdrive.

9) Gain Control

Controls the amount of Gain on the Overdrive channel.

10) Volume Control

Controls the volume of the Overdrive channel.

11) Bass Control

Controls the low end frequencies in the tone of the Overdrive channel.

12) Middle Control

Controls the middle frequencies in the tone of the Overdrive channel.

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Marshall Amplification JCM600 manual Front Panel Functions
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JCM600 specifications

Marshall Amplification is renowned in the world of music for producing iconic amplifiers that have shaped the sound of rock and roll for decades. One of their standout models is the JCM600, which combines modern technology with classic Marshall tones.

The JCM600 is a versatile tube amplifier designed for guitarists seeking a powerful performance with a variety of tonal options. This amp utilizes Marshall's renowned EL34 power tubes, delivering that signature warm, rich sound that the brand is famous for. With its robust construction and thoughtful engineering, the JCM600 can handle the demands of both studio and live performances.

One of the key features of the JCM600 is its dual-channel design. This allows musicians to switch between clean and overdriven sounds seamlessly. The clean channel maintains clarity and definition, making it ideal for chords and intricate playing. In contrast, the overdrive channel offers a rich, saturated tone that can be adjusted for everything from classic rock rhythms to higher gain sounds that suit heavier genres.

The amplifier includes a range of tonal shaping options. The presence and resonance controls allow players to fine-tune the high and low frequencies, respectively. Additionally, the JCM600 is designed with a three-band EQ—bass, middle, and treble—enabling musicians to sculpt their tone to perfection. This level of control makes it a favorite among guitarists who are particular about their sound.

The JCM600 also integrates modern technology with features such as a built-in digital reverb, adding depth to the overall tone. This reverb can be adjusted to suit the player's preference, whether they desire a subtle ambiance or a more pronounced effect.

Moreover, the amplifier is built with durability in mind, featuring a rugged chassis and high-quality components meant to endure the rigors of touring musicians. The cooling system is engineered to prevent overheating, ensuring reliable performance in even the most demanding environments.

In essence, the Marshall JCM600 encapsulates what guitarists have come to expect from the brand: powerful performance, incredible tonal versatility, and robust durability. Whether on stage or in the studio, this amplifier ensures that musicians can express their creativity and achieve their desired sound with ease.
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