Mesa/Boogie Rectifier RECT-O-VERB 50 Owner's Manual
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Mesa/Boogie Rectifier RECT-O-VERB 50 Owner's Manual

Mesa/Boogie Rectifier RECT-O-VERB 50 Owner's Manual

Mesa/boogie owner's manual amplifier solo 50/rect-o-verb 50
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See also: Owner's Manual , Operating Instructions
B
M
ESA
OOGIE
Owner's Manual
The Spirit of Art in Technology
1317 Ross Street Petaluma, CA 94954
USA

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Summary of Contents for Mesa/Boogie Rectifier RECT-O-VERB 50

  • Page 1 OOGIE Owner's Manual The Spirit of Art in Technology 1317 Ross Street Petaluma, CA 94954...
  • Page 2 Mesa/Boogie circuits. Feel confident, as we do, this amp will inspire many hours of musical satisfaction and lasting enjoyment. It was built with you in mind, by players who know the value of a fine musical instrument and the commitment it takes to make great music.

  • Page 3: Table Of Contents

    Table of Contents PRECAUTIONS: OVERVIEW: ____________________________________________________________________________ 1 INSTANT GRATIFICATION (3 DEMONSTRATION SETTINGS) __________________________________________________________ 2 CHANNEL / MODE SELECT: RHYTHM CHANNEL: CLEAN & PUSHED ___________________________________________________ 3 LEAD CHANNEL: VINTAGE & MODERN ____________________________________________________ 3 CONTROLS: GAIN __________________________________________________________________________________ 3 TREBLE _______________________________________________________________________________ 4 MIDDLE _______________________________________________________________________________ 4 BASS _________________________________________________________________________________ 4 PRESENCE ____________________________________________________________________________ 5 MASTER _______________________________________________________________________________ 5...
  • 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.

  • Page 5: Overview

    REAR VIEW - HEAD VERSION FRONT VIEW COMBO VERSION: CLEAN PUSHED GAIN TREBLE VINTAGE INPUT MODERN RECT-O-VERB 50 REAR VIEW COMBO VERSION: WARNING: Unplug power before replacing fuse or removing SPEAKERS bolts mounting chassis. SLAVE FT.SW...

  • Page 6: Instant Gratification (3 Demonstration Settings)

    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-VERBS use a DIN jack located on the rear of the chassis directly behind the label FOOTSWITCH.

  • Page 7: Channel / Mode Select

    CHANNEL / MODE SELECT: Each channel of your amplifier contains two 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: Treble

    CONTROLS: (Continued) TREBLE : As with most guitar amplifiers, the TREBLE control is the strongest of the three rotary tone controls. Its setting on the RECT-O 50 determines the blend and strength of the MIDDLE and BASS controls. Set high, it is the dominant control, thus minimizing the amount of Mid and Bass that would be possible in the mix.

  • Page 9: Presence

    CONTROLS: (Continued) PRESENCE: These are controls that work in the power section to reduce attack and brightness. They work on a different frequency than the TREBLE control, and depending on the mode chosen and the amount of Gain dialed up, can sound higher or lower than the Treble frequency.

  • Page 10: Output Control

    CONTROLS: (Continued) OUTPUT: This control determines the overall output volume level of the amplifier. After the GAIN controls have been set for the desired sound style and the two channels levels have been balanced with the channel MASTER controls, the OUTPUT control allows you to change the playing level by adjusting a single control.

  • Page 11: Standby

    CONTROLS: (Continued) SOLO: (Continued) SOLO, a pre-settable boost in overall levels is possible on the fly...giving you some control over your levels when it’s time to step out. Engineers may give you a bit of a frown the first time you use it...but isn’t it time you heard yourself. It might even prevent them from punishing you with the dreaded monitor or sidefill version of your tone.

  • Page 12: Back Panel: 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. POWER FUSE 120 V~ 2.5 A...

  • Page 13: Speakers

    SPEAKERS: Sensitivity to speaker mismatching in regards to ohmage differences is low, hence no damage to the amplifier will occur. However, very low ohmage loads will cause the power tubes to wear faster. The RECT-O 50 (combo only) is equipped with a Celestion Custom 90 single 12 inch - 8 Ohm speaker, but as you can see, other speaker configurations may be SPEAKERS used.

  • Page 14: Factory Sample Settings Page

    FACTORY SAMPLE SETTINGS Sparkling Clean SAMPLE 1 RHYTHM MASTER SOLO OUTPUT LEAD Pushed Bluesy Rhythm / Solo: Both Channels SAMPLE 2 RHYTHM MASTER SOLO OUTPUT LEAD Blues Lead: Both Channels SAMPLE 3 RHYTHM MASTER SOLO OUTPUT LEAD High Gain Lead / Crunch: Both Channels SAMPLE 4 RHYTHM MASTER...
  • Page 15 FACTORY SAMPLE SETTINGS Sparkling Clean SAMPLE 1 CLEAN PUSHED GAIN VINTAGE INPUT MODERN Pushed Bluesy Rhythm / Solo: Both Channels SAMPLE 2 CLEAN PUSHED GAIN VINTAGE INPUT MODERN Blues Lead: Both Channels SAMPLE 3 CLEAN PUSHED GAIN VINTAGE INPUT MODERN High Gain Lead / Crunch: Both Channels SAMPLE 4 CLEAN...

  • Page 16: Personal Setting Page

    PERSONAL SETTINGS PAGE SOUND 1 RHYTHM MASTER OUTPUT SOLO LEAD SOUND 2 RHYTHM MASTER OUTPUT SOLO LEAD SOUND 3 RHYTHM MASTER OUTPUT SOLO LEAD SOUND 4 RHYTHM MASTER SOLO OUTPUT LEAD HEAD VERSION SHOWN PRESENCE BASS PRESENCE BASS PRESENCE BASS PRESENCE BASS PAGE 12...
  • Page 17 PERSONAL SETTINGS PAGE SOUND 1 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 2 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 3 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 4 CLEAN PUSHED GAIN VINTAGE INPUT MODERN COMBO VERSION SHOWN TREBLE BASS TREBLE BASS TREBLE...

  • Page 18: Tube Task Chart

    PERSONAL SETTINGS PAGE SOUND 1 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 2 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 3 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 4 CLEAN PUSHED GAIN VINTAGE INPUT MODERN COMBO VERSION SHOWN TREBLE BASS TREBLE BASS TREBLE...

  • Page 19: Tube Maintenance

    PERSONAL SETTINGS PAGE SOUND 1 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 2 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 3 CLEAN PUSHED GAIN VINTAGE INPUT MODERN SOUND 4 CLEAN PUSHED GAIN VINTAGE INPUT MODERN COMBO VERSION SHOWN TREBLE BASS TREBLE BASS TREBLE...
  • Page 20 PAGE 16...
  • Page 21 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 22: Special Article Regarding Tube Biasing By Randall Smith

    DIAGNOSING POWER TUBE FAILURES: 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 23 DIAGNOSING PRE-AMP TUBE PROBLEMS: 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 24: Parts Sheet

    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 25 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 26 FRONT VIEW HEAD VERSION: BOTH SWITCHES LIGHT RECEPTACLE pt # 601073 pt # 703822 POWER STANDBY LIGHT BULB pt # 703047 RED LENS pt # 703782 REVERB CONTROLS pt # 591050 RECT-O-VERB and COMBO 50 ONLY REAR VIEW HEAD VERSION: SET TO RHYTHM WHEN USING FOOTSWITCH...
  • Page 27 OOGIE The Spirit of Art in Technology Thank you for trusting MESA/Boogie to be your amplifier company. We wish you many years of toneful enjoyment from this handbuilt all tube instrument.
  • Page 28 The Spirit of Art in Technology 1317 Ross Street Petaluma, CA 94954 Phone: (707) 778-6565 FAX: (707) 765-1503...

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