Mesa/Boogie Mark IV Amplifier Owner's Manual
Mesa/boogie mark iv amplifier owner's manual
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Also See for Mark IV Amplifier:
- Owner's manual (54 pages) ,
- Operating instructions manual (24 pages) ,
- Owner operating instructions (11 pages)
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Summary of Contents for Mesa/Boogie Mark IV Amplifier
- Page 1 OOGIE Owner’s Manual The Spirit of Art in Technology 1317 Ross Street Petaluma, CA 94954...
- Page 2 MESA/Boogie circuits that led to the refinement of your new instrument. Feel confident, as we do, this amp will inspire many hours of musical satisfaction and lasting enjoyment.
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Page 3: Table Of Contents
MARK IV 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 &... - Page 4 Your MESA/Boogie Amplifier is a professional instrument. Please treat it with respect and operate it properly. USE COMMON SENSE AND ALWAYS OBSERVE THESE PRECAUTIONS: Do not expose amplifier to moisture, rain or water, direct sunlight or extremely high temperatures. Always insure that amplifier is properly grounded.
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Page 5: Mark Iv
Congratulations for choosing the MARK IV as your new musical voice. You have purchased a handbuilt instrument of the finest quality and craftsmanship. In 1984 Mesa/Boogie introduced the world’s first “Tri-Modal amplifier - the MARK lll - with separate modes for Clean Rhythm, Crunch Rhythm and Lead Overdrive. Now the MARK IV concentrates six years of intervening design experience into a masterful new instrument which promises years of musical enjoyment. -
Page 6: Front Panel
FRONT PANEL: First familiarize yourself with the layout of the Front Panel and plug in the FU-3 footswitch which is located on the underside of the chassis towards the middle and about mid way forward of the Rear Panel. It’s not necessary to unplug the footswitch after use, simply use the handy fasteners on the left and right side of the cabinet and attach the unit for storage and/or transport. -
Page 7: Controls
CONTROLS: RHYTHM 1 GAIN: Setting the RHYTHM 1 mode adjusts the input sensitivity for the clean RHYTHM mode. With most guitars, this mode stays clean until around 8 where it begins to overdrive. Use the R1 MASTER to control loudness if you want slight overdrive at low volumes. This mode was very carefully designed to provide great rhythm sounds, from the best of vintage, Fender-type (clean or solo) to a more modern, shimmering “funk rhythm”... -
Page 8: R1 Presence
CONTROLS: (Continued) R1 PRESENCE: This control adjusts frequencies higher than those found on the TREBLE control. There are so many different sounds that RHYTHM 1 can produce, you must experiment using your guitar and your ears. Try settings such as low on the TREBLE control, high on the PRESENCE control...and the opposite...as an experiment, both with and without the BRIGHT switch. -
Page 9: R2 Treble
CONTROLS: (Continued) RHYTHM 2 TREBLE: This control along with RHYTHM 2’s PRESENCE control should be worked with together to produce the desired gain and brightness of the mode. Setting the TREBLE higher, as always, increases the gain of the mode and allows increased distortion and sustain. Lower settings allow the MID and BASS controls to become more dominant adding warmth to the sound. -
Page 10: Lead Treble
CONTROLS: (Continued) LEAD GAIN: (Continued) There are also some great singing, slightly distorted sounds that come from low settings of Gain and Drive with FAT pushed in. “Onset of Clip” and “threshold of distortion” are phrases often used to describe these sounds, which reveal the true blue beauty of the MARK IV’s all-tube lineage (see the traditional blues setting on the Sample Settings sheet further back in this manual). -
Page 11: Lead Bright
CONTROLS: (Continued) LEAD BRIGHT: The importance of this switch is a must to understand. At low to medium playing volumes, the LEAD BRIGHT adds desirable sizzle, and gain in the highs to the overdrive sound and contributes to a “big easy feeling” as well. At high volumes the LEAD BRIGHT can cause real problems, such as excess squealing and noise. -
Page 12: Output Level
CONTROLS: (Continued) GRAPHIC EQ: (Continued) EQ back out of the circuit, the straight tone sounds to flat. Don’t worry! It’s just “hearing hangover”. All the MARK IV’s modes were developed without using the EQ so that it could be an accessory - not a necessity. OUTPUT LEVEL: This control adjusts the playing loudness of all three modes equally. -
Page 13: Rear Panel
REST AREA REAR PANEL MKIV REV FTSW. FUSE 3A SB 117 VOLTS SATELLITE EQ 60 HZ 4 AMPS ON OFFAUTO R2 REMOTE SATELLITE SEND A.C. RECEPTACLE: The MARK IV uses a removable I.E.C. type power cord to supply the A.C. power. The power cord supplied with your unit should be used whenever possible as we chose it for its snug fit. -
Page 14: Reverb & Reverb Footswitch
SATELLITE CONTROL: EQ & Send Jack Mesa/Boogie offers two different Satellite companion amplifers that enable you to either reinforce your already amazing tone, or split and process the signal using the Effects Loop. A simple 60 watt version called the Satellite Sixty, as well as a 75 watt Simul-Class with REV FTSW. -
Page 15: Recording Out
REAR VIEW MKIV (Continued) EFFECTS LOOP SECTION: (Continued) be able to footswitch in the effects mid-way through a LEAD mode solo, for example. Remember that the MASTERS double as effects send controls and the OUTPUT LEVEL also works as an Effects Return control. RECORDING OUT: Following the enormous success of this feature in the Quad and Studio Preamps, where they’ve been used on numerous professional - and countless home recordings, this proven recording circuitry has been included into your new MARK IV. -
Page 16: Simul-Class & Class A Switch
POWER TUBE SUBSTITUTION: This procedure is in keeping with Mesa/Boogie’s quest for ultimate versatility. As you know, different tubes offer different sounds and playing characteristics and your new MARK IV offers four choices: FIRST: the standard four 6L6’s which produce by far the best all- around performance. -
Page 17: Speaker Jacks
POWER TUBE SUBSTITUTION: (Continued) ohm speaker should be plugged into the 4 ohm jack. However, please note that Mesa/Boogie cannot accept responsibility for any blown 6V6’s incurred during such usage! Proper operation depends totally on the correct setting of the aforementioned switches and this will be impossible to verify for warranty tube coverage. -
Page 18: External Switching Jack
Boogie combo amp and your stereo effects. The drawings below illustrate a simple hook-up procedure for going stereo. Check with your Mesa/Boogie Pro Center or call us direct for more information if you need it, we’re always more than happy to assist you, our new family member. -
Page 19: Factory Sample Settings
Clean / Crunch / Lead PULL PULL R1 TREBLE R1+R2 BASS RHY1 GAIN RHY2 GAIN INPUT LEAD GAIN LEAD TREBLE LEAD BASS PULL Vintage Clean / Clip / Howl PULL R1 TREBLE R1+R2 BASS RHY2 GAIN RHY1 GAIN INPUT LEAD GAIN LEAD TREBLE LEAD BASS PULL... -
Page 20: Personal Settings Page
R1 TREBLE R1+R2 BASS RHY2 GAIN RHY1 GAIN INPUT LEAD GAIN LEAD TREBLE LEAD BASS R1 TREBLE R1+R2 BASS RHY1 GAIN RHY2 GAIN INPUT LEAD GAIN LEAD TREBLE LEAD BASS R1 TREBLE R1+R2 BASS RHY2 GAIN RHY1 GAIN INPUT LEAD GAIN LEAD TREBLE LEAD BASS R1 TREBLE... -
Page 21: Tube Task Chart
Power Tube Substitution: 6V6's in Tweed & Simul-Class in all 4 sockets. 5881's in all 4 or Class A Sockets. EL-34's in Class A sockets only. Description of Tube Functions V1A= Input Stage V1B= Tone Recovery Stage (post tone controls) V2A= Third Gain Stage (Rhythm Modes) and Fifth Lead Gain Stage V2B= FX Return Stage... -
Page 22: Tube Noise & Microphonics
TUBE NOISE & MICROPHONICS You may occasionally experience some form of tube noise or microphonics. Certainly no cause for alarm, this quirky behavior comes with the territory and the Tone. Much like changing a light bulb, you don’t need a technician to cure these types of minor user serviceable annoyances and in fact, you’ll be amazed at how easy it is to cure tube problems...by simply swapping out a pre-amp or power tube! First may we suggest that you set the amplifier up on something so that you can get to the tubes comfortably without having to bend... -
Page 23: Diagnosing Pre-Amp Tubes Problems
DIAGNOSING PRE-AMP TUBE PROBLEMS: Because your amplifier is an all tube design, it is quite possible that you will at some point experience minor pre-amp tube noise. Rest assured - this is no cause for alarm and you can take care of the problem yourself in a matter of minutes by simply swapping tubes. Let us begin by saying;... - Page 24 BIAS ADJUSTMENT: (Part of a continuous series) NOTE: An article written by Randall Smith that we thought you might find interesting. Here’s a question we often hear: “Why doesn’t Mesa put bias adjustments in their amplifiers?” Well, there’s a short answer and a long answer to this question. The short answer is that during my 12 years of repairing Fenders, one of the most frequent problems I saw was bias controls that were either set wrong or that had wandered out of adjustment due to vibration.
- Page 25 BIAS ADJUSTMENT (Continued) And that’s right. Tubes don’t effect the bias setting, but the bias setting does effect how the tubes work. But how it effects the tubes is difficult to measure. When you set the bias (whether it’s by selecting the right resistors, as we do, or adjusting a trimmer — which is quicker) what you are doing is establishing the correct amount of idle CURRENT that flows through the power tubes.
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Page 26: Bias Adjustment
How much money and trouble that has saved Mesa/Boogie players you couldn’t estimate. Our rigorously tested and hand selected tubes are available at your nearest Mesa/Boogie Pro Center or from us directly. Nobody offers better price, quality or warranty than we do ... so why swerve? Next time we’ll talk about our part in developing the great Sylvania STR 415 type 6 6 and how we’re on the verge of seeing something... -
Page 27: Parts Sheet
MARK IV FRONT VIEW: KNOBS POT pt# POT pt# POT pt# POT pt# R1 TREBLE R1+R2 BASS RHY1 GAIN RHY2 GAIN INPUT LEAD GAIN LEAD TREBLE LEAD BASS POT pt# POT pt# POT pt# INPUT JACK JACK pt# 610110 MARK IV REAR VIEW: JACK FUSE HOLDER... - Page 28 OOGIE The Spirit of Art in Technology Thank you for trusting MESA/Boogie to be your amplifier company and we wish you many years of toneful enjoyment from this handbuilt all tube instrument.
- Page 29 The Spirit of Art in Technology (707) 778-6565 FAX NO. (707) 765-1503 1317 Ross Street Petaluma, CA 94954...