Mesa/Boogie Rectifier Stereo 2:One Hundred Owner's Manual
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Mesa/Boogie Rectifier Stereo 2:One Hundred Owner's Manual

Mesa/boogie rectifier stereo owner's manual
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Summary of Contents for Mesa/Boogie Rectifier Stereo 2:One Hundred

  • Page 1 OOGIE Owner's Manual...
  • Page 2 2:100. Bred of fine all tube amp heritage...benefiting from the many patented pioneering MESA/Boogie circuits that led to the refinement of your new instrument. Feel confident, as we do, this product will inspire many hours of musical satisfaction and lasting enjoyment.

  • Page 3: Table Of Contents

    Precautions OVERVIEW FRONT PANEL CONTROLS & SWITCHES LEVEL CONTROLS PRESENCE POWER ON STANDBY MODERN REAR PANEL - SWITCHES & JACKS INPUTS A / B BIAS SWITCH GROUND LIFT SPEAKER JACKS TUBE BAY DRIVER TUBES 12AX7A AC RECEPTACLE LINE FUSE TUBE MAINTENANCE DIAGNOSING POWER TUBE FAILURE DIAGNOSING PRE-AMP TUBE FAILURES &...
  • Page 4 PRECAUTIONS & WARNINGS 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: WARNING: EU: permission from the Supply Authority is needed before connection. WARNING: Vacuum tube amplifiers generate heat. To insure proper ventilation always make certain there is at least four inches (100mm) of space behind the rear of the amplifier cabinet.

  • Page 5: Overview

    Congratulations on your choice of the RECTIFIER STEREO 2:100 as your power amplifier and welcome to the MESA/Boogie Family. This 2 rack space unit is born of legendary stock and traces its lineage to the mighty Dual Rectifier Solo Head. Here the stunning performance of the Dual is faithfully recreated in a stereo format that duplicates the power section exactly when the Dual is set to its Silicon Diode rectifier setting.

  • Page 6: Front Panel Controls & Switches

    Overview: (Continued) most commanding sounds in rack-mount history as Recto power goes stereo for the first time in this amazing package. NOTE: BEFORE YOU MOUNT THE 2:100 IN YOUR RACK! This is an extremely aggressive and powerful amplifier intended for use with one of the above mentioned MESA preamplifiers in large venues.

  • Page 7: Power On

    FRONT PANEL CONTROLS: POWER SWITCH & POWER UP: necting the A.C. cord to a power receptacle. E N G I N E E R I N G VEL A MODERN ENCE POWER STANDBY neglected by the user.) But ignoring this procedure everytime the amplifier is used will shorten the tubes toneful life. Never remove any of the power cords terminals.

  • Page 8: Inputs A / B

    REAR PANEL FEATURES: 2:100 REAR VIEW: WARNING To reduce risk of fire or WARNING To reduce risk of fire or electric electric shock, replace fuse with shock, Do not remove cover. No user- same type and rating only. Do not serviceable parts inside.

  • Page 9: Ground Lift

    4 Ohm total load.) Mismatching of speaker impedance will not cause damage or severe loss of power. (Extreme mis-matches CHAN. A will decrease tube life, however.) MESA/Boogie 4x12 and 4x10 cabinets come SPEAKERS standard wired to 8 Ohms and are wired in series-parallel.

  • Page 10: Speaker Jacks

    TUBE BAY: The power tubes used in the 2:100 are MESA/Boogie STR-430 type 6L6 GC’s. These tubes have been tested in the amplifier during several “burn-in” periods before leaving the factory. You can expect 6 months to 2 years (or more) of outstanding performance from your MESA/Boogie power tubes, depending on use.

  • Page 11: Ac Receptacle

    This style of power cord will make tear-downs and cable routing a lot easier and save you time as well. If you should ever need a replacement, just call and we’ll be happy to send you another one for a nominal charge or visit your nearest MESA/Boogie Pro Center. LINE FUSE: This is the 2:100’s A.C.’s ( Alternating Current ) main fuse and provides protection from outside A.C.

  • Page 12: Diagnosing Power Tube Failure

    You may occasionally experience some form of tube noise or microphonics. Certainly no TUBE NOISE & MICROPHONICS 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 13: Diagnosing Pre-Amp Tube Failures & 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.

  • Page 14: Feature Article By Randall Smith On Bias Adjustment

    BIAS ADJUSTMENT: part of a continuing series An Article written by Randall Smith 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 15 BIAS ADJUSTMENT: (Continued) Voltage and current are NOT the same. Current is the AMOUNT of electricity, the “quantity” — and is measured in amperes. Voltage is the degree of electric charge — like the “pressure” to use the old water analogy. Let me illustrate how different voltage and current are: When you scrape your feet across a carpetted floor in dry, wintery conditions, your body can become charged with 50,000 to 100,000 volts of static electricity.
  • Page 16 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 6L6 and how we’re on the verge of seeing something...

  • Page 17: Speaker Hook-Up Guide & Impedance Matching

    MESA/Boogie amplifiers can handle 4 and 8 ohms effectively. Never run below 4 Ohms in a tube amplifier unless you are absolutely certain that the system can handle it properly; this can cause damage to the Output transformer. A few amplifiers can handle 2 Ohms effectively without damaging them ( for example the MESA’S Bass 400+ ).

  • Page 18: Speaker A Speaker B

    SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE: PARALLEL: When wiring in parallel, the resistance of the speakers decreases. Two 8 Ohm speakers wired in ( hooked-up ) Parallel results in a 4 Ohm load. It’s easy to calculate the effect of a resistive load when all the speakers are all the same resistance. It is really not suggested to wire different resistive load values in Parallel ( 8 and 4, 16 and 8 etc.

  • Page 19: Possible Hook-Up Schemes - Amplifier To Speaker Cabinets

    WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier 8 OHM 4 OHM 4 OHM 8 Ohm Cabinet 8 Ohm Cabinet 4 Ohm Cabinet Partial back view of amplifier 4 OHM 8 OHM 16 OHM 16 Ohm Cabinet Partial back view of some Mesa amp 8 OHM 4 OHM...
  • Page 20 WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier 8 OHM 4 OHM 8 Ohm Cabinet CORRECT MATCH Partial back view of amplifier 8 OHM 4 OHM 8 Ohm SERIES BOX 4 Ohm 4 Ohm 4 Ohm Cabinet 4 OHM 8 Ohm Cabinet 8 Ohm Cabinet 4 OHM...
  • Page 21 WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier 16 Ohm 4 OHM 4 OHM 8 OHM SERIES BOX 8 Ohm 8 Ohm 8 Ohm Cabinet 8 Ohm Cabinet 8 Ohm Cabinet SAFE MISMATCH Partial back view of amp Partial back view of amplifier CORRECT MATCH 8 OHM...
  • Page 22 WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier 16 Ohm 4 OHM 4 OHM 8 OHM SERIES BOX 8 Ohm 8 Ohm 8 Ohm Cabinet 8 Ohm Cabinet 16 Ohm Cabinet SAFE MISMATCH Partial back view of amplifier 8 OHM 4 OHM 4 OHM...

  • Page 23: Wiring Examples Using The Simul-Class 2:100

    MODERN CHAN. B 8 OHM SPEAKERS 4 OHM UN-SHIELDED CABLE RING SLEEVE RETURN - R LEFT RIGHT MAIN 2:100 NORMAL RECTO INPUTS CHAN. A 8 OHM SPEAKERS 4 OHM PAGE19 Mesa/Boogie all tube Formula Pre-Amplifier ALL TUBE STEREO POWER AMPLIFIER...
  • Page 24 SUGGESTED WIRING #2 CLEAN BRIGHT BRIT INPUT GAIN FT.SW. -3DB VINT MODERN WARNING To reduce risk of fire or electric shock, replace fuse with same type and rating only. Do not expose this unit to rain or moisture. ECTO REAMP ALL TUBE RECORDING AMPLIFIER NORMAL...

  • Page 25: Feature Article By Randall Smith On How Tubes Work

    ON TRIODES, PENTODES & IRISHMEN: A look into the inner workings of the Vacumm Tube With apologies to Friends and Relatives from the Emerald Isle - who will make their appearance soon enough - the humor which follows is dedicated to the memories of Spec McAuliff and Fae (Rafael) McNally, two of the True Greats. As their numerical references suggest, the terms Diode, Triode and Pentode indicate the number of elements within the vacuum tube i.e.
  • Page 26 ON TRIODES, PENTODES & IRISHMEN: ( Continued ) Thus a diode tube - one with a cathode and an anode - is mostly used to rectify alternating current into direct current by passing it without a cathode and an anode - is mostly used to rectify alternating current into direct current by passing it without restriction, but in one direction only.
  • Page 27 ON TRIODES, PENTODES & IRISHMEN: ( Continued ) PENTODES: (Continued) stopping them. The influence of the plate takes over and - being solid metal and of the highest positive attraction - it is at this final destination that the electrons congregate. Thus the proper cocktail waitress - visible through the louvers - is scantily clad so as to be all the more effective at reinforcing the attractive influence of her bar and by being located in between the door and the bar, she serves as bait to lure customers past the door’s negative influence.
  • 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...

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