Mesa/Boogie Boogie Owner's Manual

Owner’s Manual

PAGE 6FrONT PANeL: CO N T r O L S & Fe A T u r e S (Continued)MID: The MID control is responsible for the blend of midrange frequencies in

PAGE 7FrONT PANeL: CO N T r O L S & Fe A T u r e S (Continued)MASTER: This control is the master feed from the end of the pre-amp to the dri

PAGE 8FrONT PANeL: CO N T r O L S & Fe A T u r e S (Continued)CONTOUR: (Cont.) maximum, the EQ effect becomes extreme and a realm of sound

PAGE 9reAr PANeL: CO N T r O L S & Fe A T u r e SEXTERNAL SWITCHING: These four ¼ “ jacks trigger the Channels, REVERB and CONTOUR feature of

PAGE 10reAr PANeL: CO N T r O L S & Fe A T u r e S (Continued)POWER SELECT: As mentioned in the OVERVIEW, your Express features our patented

PAGE 11reAr PANeL: CO N T r O L S & Fe A T u r e S (Continued)SPEAKERS: These jacks handle the output to speaker cabinets or the internal com

PAGE 12FACTORY SAMPLE SETTINGSRoots Clean / Texas LeadPushed Clean / Thick CrunchAlternative Clean / Huge CrunchSpankin’ Clean / Vocal LeadTight Crunc

PAGE 13PERSONAL SETTINGS

PAGE 14TUBE NOISE & MICROPHONICS: You may occasionally experience some form of tube noise or microphonics. Certainly no cause for alarm, this qu

PAGE 15DIAGNOSING PRE-AMP TUBE PROBLEMS: Because your amplifier is an all tube design, it is quite possible that you will at some point experience mi

Hello from the Tone Farm...You, smart player and intuitive human, have put your trust in us to be your amplifier company. This is something we do not t

PAGE 16BIAS ADJUSTMENT: (Part of a continuing series)An Article written by Randall Smith thatwe thought you might find interesting.Here’s a question w

PAGE 17BIAS ADJUSTMENT: (Continued) control grids. Voltage and current are NOT the same. Current is the AMOUNT of electricity, the “quantity” — and

PAGE 18BIAS ADJUSTMENT: (Continued) Again, this has some merit .. but it’s still not as good as using tubes that are matched in the first place becau

PAGE 19SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE:IMPEDANCE: Wiring up speakers to provide the most effective load and making sure that all of t

PAGE 20SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE: (Continued)PARALLEL: When wiring in parallel, the resistance of the speakers decreases. Two

PAGE 2112544 Ohm Cabinet38 OHM 4 OHM 4 OHMPartial back view of some Mesa amp8 Ohm CabinetSAFE MISMATCH WIRING SCHEMES...Amplifier to Speaker Cabin

PAGE 228 OHM 4 OHM 4 OHMPartial back view of amplifier8 Ohm Cabinet8 Ohm Cabinet68 Ohm Cabinet16 Ohm Cabinet84 OHM 4 OHM 8 OHMPartial back vie

PAGE 234 OHM 4 OHM 8 OHMPartial back view of amplifier8 Ohm Cabinet8 Ohm CabinetSERIES BOX16 Ohm8 Ohm8 Ohm8 Ohm Cabinet10SAFE MISMATCH124 OHM 4

PAGE 244 OHM 4 OHM 8 OHMPartial back view of amplifier8 Ohm Cabinet8 Ohm CabinetSERIES BOX16 Ohm8 Ohm8 Ohm16 Ohm Cabinet13SAFE MISMATCH WIRING S

PAGE 25ON TRIODES, PENTODES & IRISHMEN:With apologies to Friends and Relatives from the Emerald Isle - who will make their appearance soon enough

READ AND FOLLOW INSTRUCTIONS OF PROPER USAGE.IMPORTANT SAFETY INSTRUCTIONSRead these instructions.Keep these instructions.Heed all warnings.Follow all

PAGE 26ON TRIODES, PENTODES & IRISHMEN: (Continued) Thus a diode tube - one with a cathode and an anode - is mostly used to rectify alternating

PAGE 27PENTODES: (Continued) Thus the proper cocktail waitress - visible through the louvers - is scantily clad so as to be all the more effective

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PAGE 30ALL KNOBSPT# 408015590739 590148 590736 590150 590151 590738590739 590738 590737 590739 590151 590148590740590740JACKpt# 610120SWITCHpt# 607231

PAGE 31ALL KNOBSPT# 408015590739590148590736590150590151590738590739590738 590737590739590151590148590740590740JACKpt# 610120SWITCHpt# 607231LEDpt# 39

NOTES

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®09/14/09

Precautions _______________________________________________________________________________ 0Overview ________________________________________________

PAGE 1Ov e r v i e w :Congratulations on choosing one of the Express models as your amplifier and welcome to the MESA Family! These amplifiers rep-rese

PAGE 2Ov e r v i e w : (Continued)synonymous with huge guitar sounds and this CONTOUR feature puts all the authentic power of this circuit into one ea

PAGE 3THe MODeSCHANNEL 1CLEAN: This is the lowest gain of the four modes in your Express and it is voiced to deliver beautiful sparkling and warm cl

PAGE 4CHANNEL 2BLUES: Channel 2 is aimed more at single note soloing, although both of the modes contained in this channel work well for rhythm play

PAGE 5GAIN: As with all tube amplifiers, especially those with higher GAIN circuits, the GAIN control is by far the most powerful control in the ampl