Mesa/Boogie pmn Owner's Manual
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Mesa/Boogie pmn Owner's Manual

Mesa/Boogie pmn Owner's Manual

Series 2
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ESA
OOGIE
Series 2
Owner's Manual

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  • Page 1 OOGIE Series 2 Owner's Manual...
  • Page 2 Hello from the Tone Farm ...You, smart player and all around intuitive human, have put your trust in us to be your amplifier company. This is something we do not take lightly. By purchasing and choosing this unit to be a part of your musical voice, you have become part of the MESA family...WELCOME! Our goal is to never let you down.

  • Page 3: Table Of Contents

    Precautions OVERVIEW INSTANT GRATIFICATION (2 DEMONSTRATION SETTINGS) CHANNEL / MODE SELECT CHANNEL 1: CLEAN & PUSHED CHANNEL 2: RAW, VINTAGE & MODERN CONTROLS GAIN TREBLE MIDDLE BASS PRESENCE REVERB (Rect-o-Verb Combo & Heads only) MASTER OUTPUT CONTROL SOLO CONTROL TOGGLE SWITCHES STANDBY POWER REAR PANEL CONTROLS, SWITCHES &...

  • Page 4: Precautions And Warnings

    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: Operating Instructions

    VERVIEW Congratulations on your choice of the SINGLE RECTIFIER 50 Series 2 amplifier.You have purchased a handbuilt instrument of the finest quality and craftsmanship. A unique blend of yesteryears’ black magic power section design combined with our race-shop approach to finely tuned, high gain pre-amp circuitry leaves the RECT-O 50 Series 2 for vintage status.

  • Page 6: Front Panel

    FRONT PANEL: First familiarize yourself with the layout of the Front Panel. Next, remove the footswitch from the transport pouch located inside the cabinet ( combo ) and connect it to the proper jack. RECT-O-VERB Series 2 amplifiers use a DIN jack located on the underside of the chassis’s outer edge.

  • Page 7: Channel / Mode Select

    CHANNEL / MODE SELECT: Each channel of your amplifier contains different modes of operation that may be selected depending on your application. In this way you may decide to use the channels for their most obvious sounds or with the flick of a switch - invert the channels for the opposite sound style.

  • Page 8: Controls

    CHANNEL / MODE SELECT: (Continued) MODERN: Aggressive. This is the word that best describes the menacing power of the RECT-OS’ most rebellious of all modes. A take no prisoners, crushing assault of top end cut and lightning fast response creates a sound of unparalleled aggression that has set a new standard for hard core sounds.

  • Page 9: Treble

    CONTROLS: (Continued) 2.) GAIN - In conjunction with theTone Controls - Basically, a simple rule applies...as the Gain is increased the Tone control string has less and less effect on the signal until at 5:00 the signal is so saturated that you are getting mostly Gain and very little Tone. Again, this is the reason we suggest using the GAIN Control in its middle region.

  • Page 10: Bass

    CONTROLS: (Continued) As Channel 1’s MIDDLE Control is swept past 1:00, it quickly starts to add gain in these midrange frequencies adding cut and punch. As the top end of the control is reached, ( 3:00 - 5:00 ) it becomes an additional gain control capable of taking both CLEAN and PUSHED modes to extremes.

  • Page 11: Master

    CONTROLS: (Continued) MASTER: This control is the master feed from the end of the pre-amp to the driver stage and the Effects Loop. As you can see each Channel is fitted with its own MASTER Control, enabling the two channels relative volumes to be matched regardless of their extremely different sound styles and gain signatures.

  • Page 12: Solo Control

    CONTROLS: (Continued) SOLO: This control can only be activated if the correct Footswitch is connected to the Footswitch DIN jack. SOLO is an additional final output level control wired in parallel with the OUTPUT Control. It is capable of a setting above that of the OUTPUT Control and can not be set below.The amount of apparent boost also depends on that of the OUTPUT Control - in that if the amplifier is at either the extreme low or extreme high levels of the OUTPUT, its effectiveness is minimized.

  • Page 13: Rear Panel

    REAR PANEL: SINGLE RECTIFIER SERIES 2 SOLO HEAD ALL TUBE AMPLIFIER HANDMADE IN PETALUMA, CALIF USA SPEAKERS SLAVE BIAS SWITCH 4 OHM 4 OHM 8 OHM CAUTION (TO EXT. PWR AMP) SWITCH MUST MATCH TUBES IN USE REAR VIEW - HEAD VERSION SLAVE OUT: This 1/4”...

  • Page 14: Fx Loop: Send & Return

    REAR PANEL: BIAS SELECT: (Continued) chording or soloing, to an all out high gain crunch or lead sound. Players that use mostly these types of sounds may prefer the EL34 clip to the 6L6’s that come standard in the new RECT-O 50 amplifiers. If you need a variety of sounds and rely on a clean chording sound much of the time, you will likely prefer the stock compliment of 6L6’s that both of these two versions are fitted with.

  • Page 15: Channel Select Toggle

    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. PAGE 11 MESA/Boogie Pro Center.

  • Page 16: Factory Sample Settings

    Sparkling Clean SAMPLE 1 MASTER SOLO OUTPUT Pushed Bluesy Rhythm / Solo: Both Channels SAMPLE 2 MASTER SOLO OUTPUT Blues Lead: Both Channels SAMPLE 3 MASTER SOLO OUTPUT High Gain Lead / Crunch: Both Channels SAMPLE 4 MASTER OUTPUT SOLO FACTORY SAMPLE SETTINGS FACTORY SAMPLE SETTINGS HEAD VERSION SHOWN...
  • Page 17 Sparkling Clean SAMPLE 1 CLEAN PUSHED GAIN INPUT MODERN Pushed Bluesy Rhythm / Solo: Both Channels SAMPLE 2 CLEAN PUSHED GAIN INPUT MODERN Blues Lead: Both Channels SAMPLE 3 CLEAN PUSHED GAIN INPUT MODERN High Gain Lead / Crunch: Both Channels SAMPLE 4 CLEAN PUSHED...

  • Page 18: Personal Settings Page

    SOUND 1 MASTER OUTPUT SOLO SOUND 2 MASTER SOLO OUTPUT SOUND 3 MASTER SOLO OUTPUT SOUND 4 MASTER SOLO OUTPUT PERSONAL SETTINGS PAGE HEAD VERSION SHOWN PRESENCE BASS PRESENCE BASS PRESENCE BASS PRESENCE BASS PAGE 14 CLEAN PUSHED GAIN TREBLE MODERN CLEAN PUSHED...
  • Page 19 SOUND 1 CLEAN PUSHED GAIN INPUT MODERN SOUND 2 CLEAN PUSHED GAIN INPUT MODERN SOUND 3 CLEAN PUSHED GAIN INPUT MODERN SOUND 4 CLEAN PUSHED GAIN INPUT MODERN PERSONAL SETTINGS PAGE COMBO VERSION SHOWN TREBLE BASS TREBLE BASS TREBLE BASS TREBLE BASS PAGE 15...

  • Page 20: Tube Description & Task Charts

    PAGE 16...

  • Page 21: Speaker Impedance Matching & Hook-Up Guide

    MESA/Boogie amplifiers can handle 4 and 8 ohms effectively. Never run below 4 ohms in a tube amplifier unless you are absolutely MESA/Boogie amplifiers can handle 4 and 8 ohms effectively. Never run below 4 ohms in a tube amplifier unless you are absolutely MESA/Boogie certain that the system can handle it properly;...

  • Page 22: 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 23 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 24 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 25 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 26 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 27: Tube Noise & Microphonics

    TUBE NOISE & MICROPHONICS: 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 down.

  • Page 28: Diagnosing Pre-Amp Tube 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 29: Bias Adjustment: A Feature Article By Randall Smith

    BIAS ADJUSTMENT: (Part of a continuing series) 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 Mesa put bias adjustments Mesa in their amplifiers?” Well, there’s a short answer and a long answer to this question.
  • Page 30 BIAS ADJUSTMENT: (Continued) control grids. 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 carpeted floor in dry, wintery conditions, your body can become charged with 50,000 to 100,000 volts of static electricity.
  • Page 31 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 32: Triodes, Pentodes & Irishmen: A Feature Article By Randall Smith

    ON TRIODES, PENTODES & IRISHMEN: 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 33 ON TRIODES, PENTODES & IRISHMEN: rectify alternating current into direct current by passing it without restriction, but in one direction only. This also explains why closing time is strictly enforced at Irish pubs: During normal operation, the traffic flow is similarly unimpeded and uni-directional toward the bar and this process rectifies the work-day negativity.
  • Page 34 PENTODES: (Continued) 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 35: Part Sheet

    PAGE 31...
  • Page 37 Th ank you Th ank you Th ank you for trusting MESA/Boogie to be your amplifi er company. for trusting MESA/Boogie to be your amplifi er company. We wish you many years of toneful enjoyment from this handbuilt all tube instrument.
  • Page 38 The Spirit of Art in Technology 1317 Ross Street Petaluma, CA 94954 Phone: (707) 778-6565 Fax: (707) 765-1503 09/18/06...

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Rectifier rect-o-verb 50

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