Mesa/Boogie Mark IV Amplifier manual Mark IV Table of Contents

Models: Mark IV Amplifier

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MARK IV Table of Contents

PRECAUTIONS

OVERVIEW _____________________________ 1

FRONT PANEL:

POWER-UP ____________________________ 2

CONTROLS:

RHYTHM 1 GAIN ________________________

3

PULL BRIGHT __________________________

3

R 1 TREBLE ____________________________

3

R 1 + R 2 BASS and R 1 + R 2 MID _________

3

R 1 PRESENCE _________________________

4

R 1 MASTER ___________________________

3

RHYTHM 2 GAIN & FAT __________________

4

R 1 + R 2 BASS and R1 + R 2 MID __________ 4

R 2 TREBLE ____________________________ 5

R 2 PRESENCE _________________________ 5

R 2 MASTER ___________________________ 5

SETTING THE LEAD MODE:

LEAD GAIN _________________________ 5 & 6

LEAD TREBLE __________________________

6

LEAD BASS & LEAD MID _________________

6

LEAD DRIVE ___________________________

6

LEAD BRIGHT __________________________

7

LEAD PRESENCE & LEAD MASTER ________ 7

GRAPHIC EQ ________________________ 7 & 8

OUTPUT LEVEL _________________________

8

SILENT RECORDING (Pull Switch) _________

8

STANDBY ______________________________

8

POWER (Full & Tweed Power) _____________

8

REAR PANEL:

A.C. RECEPTACLE _______________________ 9

FUSE __________________________________ 9

REVERB & REVERB FOOTSWITCH ________ 10

EQ ROCKER SWITCH ____________________ 10

SATELLITE CONTROL: EQ & SEND JACK __ 10 EFFECTS LOOP SECTION ____________ 10 & 11

RECORDING OUT _______________________ 11

SLAVE OUT (D.I.) ________________________ 11

TRIODE & PENTODE SWITCH _____________ 11

SIMUL-CLASS & CLASS A SWITCH ________ 12

HARMONICS & MID GAIN SWITCH _________ 12

POWER TUBE SUBSTITUTION ________ 12 & 13

SPEAKER JACKS _______________________ 13

MODE SELECTOR SWITCH _______________ 13

EXTERNAL SWITCHING JACK ____________ 14

GOING STEREO ________________________ 14

FACTORY SAMPLE SETTINGS ____________ 15

PERSONAL SETTINGS PAGE _____________ 16

TUBE TASK CHART _____________________ 17

TUBE NOISE & MICROPHONICS ___________ 18

DIAGNOSING PRE-AMP TUBES PROBLEMS _ 19 BIAS ADJUSTMENT ______________ 20,21 & 22

PARTS SHEET __________________________ 23

NOTE: Do to the sophistication and advanced layout of this amplifier, we strongly urge you to read and understand the workings and how to's of your new MARK IV...doing so will save time and increase your enjoyment.

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Mesa/Boogie Mark IV Amplifier manual Mark IV Table of Contents

Mark IV Amplifier specifications

The Mesa/Boogie Mark IV amplifier stands as a landmark in the world of guitar amplification, boasting a rich history that intertwines with the evolution of rock music. Launched in the 1990s, the Mark IV embodies the hallmark traits of Mesa/Boogie’s innovative spirit, delivering versatility, power, and an extensive range of tonal options.

At the core of the Mark IV is its three-channel configuration, which includes Clean, Rhythm, and Lead channels. Each channel offers varying degrees of distortion and gain that can be tailored to the player's distinct preferences. The Clean channel produces a pristine sound, ideal for jazz or blues, while the Rhythm channel steps up with a compelling crunch for rock tones. The Lead channel takes it further, providing a high-gain saturation, perfect for heavier genres. The ability to switch seamlessly between these channels enables musicians to transition effortlessly during performances.

One notable feature of the Mark IV is the onboard graphic equalizer. This 5-band EQ allows guitarists to sculpt their sound intricately, enhancing or attenuating frequencies to achieve a desired tone. Coupled with its patent-pending Gain structure, the amp provides an unparalleled range of tonal shaping ability, making it a favorite among professionals and hobbyists alike.

The Mark IV also benefits from the innovative Dyna-Watt technology. This feature ensures that players can harness full power from the amp, regardless of volume levels. Dyna-Watt adjusts the output stage to produce dynamic responsiveness, allowing for a richness of sound that stands out without needing excessive volume. This feature is particularly useful for studio recording and smaller venues, where loud amplification can be an issue.

Mesa/Boogie amplifiers are renowned for their build quality, and the Mark IV is no exception. Crafted with precision, it features a rugged chassis and high-quality components designed to withstand the rigors of touring. The amp’s tube-driven design, utilizing powerful 6L6 or EL34 tubes, contributes to its warm tone and dynamic response, appealing to a wide array of musicians.

In conclusion, the Mesa/Boogie Mark IV amplifier is a cornerstone piece of gear for guitarists seeking a powerful, versatile, and richly infused tonal experience. With its three-channel architecture, graphic equalizer, Dyna-Watt technology, and robust construction, it meets and exceeds the demands of contemporary musicians across genres. Whether on stage or in the studio, the Mark IV remains a potent tool for expression, earning its place in the pantheon of iconic amplifiers.