User manual MARSHALL EFFECT PEDAL JH-1 JACKHAMMER

[. . . ] For over 40 years the Marshall name has been synonymous with the greatest guitar tones in music. We have worked hand in hand with guitarists from all levels throughout the world to maintain and improve that special ingredient, `The Marshall Sound. ' WARNING Do not expose the apparatus to rain or moisture. Do not expose the apparatus to dripping or splashing. No objects filled with liquids should be placed on or near the apparatus. [. . . ] The Jackhammer features two modes; Overdrive and Distortion. Overdrive delivers an open crunch for that classic Marshall roar, whereas Distortion gives you a smooth and singing compressed high gain tone. The Jackhammer features a passive bypass for the main signal path, to ensure complete tonal integrity and has a quality of tone matched only by its versatility. Here follows a complete run down of the Jackhammer's features for your information. We have also enclosed a number of suggested settings to help guide you. It should be remembered that these are only suggested settings and you should experiment as much as possible. If you take the time to explore the many different overdrive and distortion characters of the Jackhammer, you won't be disappointed. Setting Up Always use good quality shielded leads. Always use 9V regulated DC supply with centre negative. Although it may seem obvious the first action in achieving a good effected sound (be it duration / compression etc. ) is to find the perfect bypassed sound. This will then allow the correct level to be set with the effect unit to allow a cut or boost in volume and a realistic tone. On clean channels it is advisable to set the gain (or volume) to a setting of no less than one quarter maximum so as not to get unrealistic results due to any volume dependent tonal shaping on the amplifier preamp. Features 1. Jack Socket This is the output of the Jackhammer and is for connection to the amplifier or to another effects pedal. 2. Mode Allows for selection of the Jackhammer's two modes; Overdrive and Distortion. Overdrive gives you traditional Marshall open roar, similar to JCM 800 style Master Volume models with more bite and dynamics. Distortion Mode delivers a more saturated high gain compressed tone, similar to the high gain channels on JCM 2000 models. 3. Gain This increases the amount of distortion, taking you from vintage 2 3 ENGLISH breakup, ideal for big crunchy chords, sweet singing blues and classic rock on Crunch mode; and from powerful overdrive to full on high gain distortion and compressed super saturation on the Lead mode. Trouble Shooting CHECK PEDAL CONTROLS CHECK GUITAR 4. Volume CHECK BATTERY CHECK LEADS Adjusts the volume of the Jackhammer, allowing you to set the pedal for a boost or cut in volume when in operation, should you so wish. 5. DC Input For input of a 9V DC adaptor (as detailed previously) should you not wish to use batteries WHAT IF NO OUTPUT NOISE IN BYPASS INDICATOR LED NOT ON SOUND TOO TREBLY OR FIZZY SOUND TOO MUSHY OR BASSY UNUSUAL FEEDBACK 6. LED Indicates when the Jackhammer is in operation. 7. Treble Adjusts the Treble frequencies in your tone. INPUT LEAD 8. [. . . ] BASS FEEDBACK PICKUPS MAY BE VIBRATING 12. Foot Switch For switching the Jackhammer on and off. 4 5 ENGLISH Battery Replacement 1. To replace the battery, open the easily accessed coin screw battery cover plate by loosening screw as shown, then disconnect the battery connector lead. Use PP3 or equivalent battery (for improved battery life use alkaline type) 3. [. . . ]