Mesa/Boogie Mark IV Amplifier manual Front View Mark

Page 27

FRONT VIEW: MARK IV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ pt#

588535

 

LED pt#

 

 

 

KNOBS

 

 

 

 

 

 

 

 

 

 

 

KNOBS

 

 

 

KNOB

 

 

 

LED pt#

pt#

 

 

 

 

 

 

 

 

 

 

 

 

pt#

 

 

 

 

KNOB pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pt#

408538

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SILENT

EQ

LOOP

 

POT pt#

POT pt#

 

 

POT pt#

 

POT pt#

POT pt#

POT pt#

 

 

POT pt#

POT pt#

 

POT pt#

 

 

 

 

 

RECORDING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(PULL)

 

 

 

PULLBRIGHT

 

FATPULL

 

 

 

 

 

 

 

 

PRESENCE

CONTROLS

 

SHIFTPULL

SHIFTPULL

 

 

 

 

 

 

 

FULL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POT pt#

 

 

 

RHY1 GAIN

RHY2 GAIN

 

R1 TREBLE

R1+R2 BASS

R1+R2 MID

R2 TREBLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1

R2

 

LD

 

 

 

 

 

 

 

 

 

INPUT

LEAD GAIN

 

LEAD TREBLE

 

LEAD BASS

LEAD MID

LEAD DRIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRIGHTPULL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INSTRUMENT

POT pt#

FATPULL

 

POT pt#

 

 

POT pt#

POT pt#

POT pt#

MASTERS

POT pt#

POT pt#

 

POT pt#

 

 

 

 

 

 

 

TWEED

 

 

 

 

 

 

 

 

 

OUTPUT LEVEL

STANDBY

POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

80

240

750

2200

6600

 

 

 

 

 

 

 

 

 

 

 

 

 

MARK IV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT JACK

 

 

 

 

 

 

 

LED

 

 

 

 

 

 

LED

 

 

 

 

 

EQ SWITCH

 

 

 

 

 

 

 

 

 

pt#

 

 

 

 

 

 

pt#

 

 

 

 

 

pt#

 

POWER

JACK pt# 610110

 

 

 

 

 

 

 

 

 

LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pt#

601073

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JACK

 

 

 

 

 

 

 

 

 

JACK pt#

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PAGE

REAR VIEW: MARK IV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pt#

 

 

 

 

 

 

 

 

JACK pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCHES

 

 

KNOB

SWITCHES

KNOB

 

 

 

 

 

 

FUSE HOLDER

 

KNOB

 

pt#

 

 

 

JACK pt#

 

 

 

 

 

ALL 3 pt#

 

 

pt#

 

 

 

 

pt#

 

 

 

pt#

 

 

 

 

 

 

ALL 3 pt#

 

pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REVERB FTSW.

FX LOOP ON

AUTO

AUTO

 

 

 

TRIODE

 

SIMUL-CLASS

HARMONICS

 

 

 

 

CLASS A/ SIMUL

FX LOOP

EQ

 

 

 

 

 

 

 

 

 

RHY 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FULL TIME

RHY 2

RECORDING

 

POWERAMP

 

VOICING

 

 

RHY 2

 

 

 

 

 

 

 

 

REVERB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUSE

 

POT pt#

 

 

 

 

 

 

POT pt#

 

 

RHY 1

 

LEAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FT SW

POT pt#

EX SW

 

 

 

 

 

3A SB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SATELLITE

 

FX LOOP

RHY 2

LEAD

 

 

 

PENTODE

 

CLASS A

MID GAIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GROUND

GRAPHIC EQ

 

 

 

SWITCHING

AUTO ASSIGN SWITCHES

 

 

 

 

 

 

 

 

 

 

 

EXTERNAL SWITCHING JACKS

 

 

 

 

 

LEFT

 

RIGHT

 

 

LEVEL

OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

117 VOLTS

 

 

 

 

SATELLITE EQ

(STEREO)

 

(MONO)

 

 

 

SPEAKERS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODE SELECT

 

 

 

 

 

50-60 HZ

 

 

 

 

 

 

 

 

(D.I.)

 

 

 

 

 

 

 

 

 

200 WATTS MAX.

 

 

 

 

SIG.

 

 

 

POT pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PATH

 

FX SEND

 

SLAVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A OFF

B

ON / OFF AUTO R2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RETURN

 

RETURN

 

8 OHM

4 OHM

4 OHM

HANDBUILT IN PETALUMA CALIFORNIA

RHYTHM 1

RHYTHM 2

LEAD

 

 

 

 

REMOTE

SATELLITE SEND

 

 

 

 

 

 

 

 

 

 

 

 

JACK

 

SPK. JACKS

 

 

 

 

 

 

 

JACK pt#

SWITCH

 

 

 

 

 

JACK pt#

 

 

pt#

 

 

 

 

ALL 3 pt#

 

 

 

 

 

 

 

 

pt#

 

 

 

 

 

 

 

JACK

 

 

 

 

 

 

 

 

 

 

 

 

JACK pt#

 

 

 

 

 

 

 

 

 

 

KNOB

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

pt#

 

 

JACK pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pt#

 

 

 

 

 

JACK

 

 

pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JACK pt#

 

 

 

 

 

 

 

 

 

 

 

 

JACK pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pt#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 27
Contents Mark Hello from the Tone Farm Mark IV Table of Contents USE Common Sense and Always Observe These Precautions Markk Front Panel R1 + R2 Bass & R1 + R2 MID Rhythm 1 GainPull Bright Rhythm 1 TrebleR1 Presence R1 MasterRhythm 2 Gain & FAT R2 Master Setting the Lead Mode Lead GainRhythm 2 Treble R2 PresenceLead Drive Lead GainLead Treble Lead Bass & Lead MIDLead Bright Lead Presence & Lead MasterGraphic EQ Standby Silent Recording Pull SwitchGraphic EQ Output LevelReceptacle Internal circuitryFuse Due to cable length or impedance mismatching Reverb & Reverb FootswitchEQ Rocker Switch Satellite Control EQ & Send JackRecording OUT Recording OUT when feeding a p.a. boardTriode / Pentode Switch Effects Loop SectionSIMUL-CLASS / Class a Switch Harmonics / MID Gain SwitchPower Tube Substitution Power Tube Substitution Speaker JacksSide while pulling gently downward Going Stereo External Switching JacksMark Mark IV Personal Settings Power Tube Substitution Diagnosing Power Tube Failures Tube Noise & MicrophonicsTube Noise Diagnosing PRE-AMP Tube Problems Here’s a question we often hear Bias Adjustment Cheers Randall Smith Designer & President Front View Mark Mesa Boogie 707 778-6565 FAX no

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.