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B
M
ESA
OOGIE
O
M
wner's
anual
The Spirit of Art in Technology
1317 Ross Street Petaluma, CA 94954
USA

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Summary of Contents for Mesa/Boogie Dual Rectifier Blue Angel

  • Page 1 OOGIE wner’s anual 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 in- strument. Feel confident, as we do, this amp will inspire many hours of musical satisfaction and lasting enjoyment.
  • Page 3: Table Of Contents

    Table of Contents Precautions FRONT PANEL: Description & Usage ____________________________________________________ 1 Power-Up ____________________________________________________________________________ 2 Inputs _______________________________________________________________________________ 2 Volum _______________________________________________________________________________ 2 Treble _______________________________________________________________________________ 3 Mid _________________________________________________________________________________ 3 Bass ________________________________________________________________________________ 3 Reverb ______________________________________________________________________________ 4 Progressive Linkage __________________________________________________________________ 4 Toggle Switches: On / Standby and Power _______________________________________________ 5 REAR PANEL: Description &...
  • Page 4 Your Mesa/Boogie Amplifier is a professional instrument. Please treat it with respect and operate it properly. Do not expose amplifier to moisture, rain or water, direct sunlight or extremely high temperatures. Always insure that amplifier is properly grounded. Always unplug A.C. power cord before changing fuse or any tubes When replacing fuse, use only same type and rating Avoid direct contact with heated tubes.
  • Page 5: Inputs

    Operating Instructions OVERVIEW: The BLUE ANGEL is a sophisticated and extremely versatile single channel amplifier that focuses on the lower to medium gain requirements of todays blues and roots music. The simple control layout pays tribute to the classics of yester- year, while the addition of a new concept in power design, PROGRESSIVE LINKAGE, elevates the BLUE ANGEL to a class all its own.
  • Page 6: Power-Up

    FRONT PANEL: POWER-UP: Connect your favorite guitar to the instrument input jack. Flip the power switch “ON” while leaving the STANDBY switch set to “STANDBY”. (It’s always a good idea to practice this start up procedure) as at least 30 seconds of warm-up time lessens the shock on cold power tubes, thus prolonging their life substantially.
  • Page 7 CONTROLS: (Continued) TREBLE: As with most guitar amplifiers, the TREBLE control is the strongest of the three rotary tone controls. Its setting on the BLUE ANGEL determines the blend and strength of the MIDDLE and BASS controls. Set high, it is the dominant control minimizing the amount of MID and BASS that would be possible in the mix.
  • Page 8 CONTROLS: (Continued) With the BLUE ANGELS’ REVERB control, different amounts of the rich ALL TUBE REVERB can be mixed with REVERB: the dry signal. It is normal for extreme settings of the REVERB control to slightly alter the sound character of the amplifier as the voicing of the REVERB circuit becomes more dominant in the mix.
  • Page 9 Perfect for set breaks... this toggle switch also serves an even more important purpose. In the STANDBY position the tubes are at idle so that during power up they may warm up before being put to use. Before TOGGLE SWITCHES Power is switched on make sure the STANDBY switch is in the STANDBY position.
  • Page 10 8 ohms. They have four 8 ohm speakers wired in series-parallel. Some cabinets other than Mesa/Boogie, may be 4, 8 or 16 ohms; To confirm how your cabinet may be wired and the imped- ance rating of your speakers, you may need to remove the back panel to verify this information in regards to proper speaker matching.
  • Page 11 SUGGESTED SAMPLE SETTINGS Sparkling Clean Most Pickups SAMPLE 1 4 X EL-84 2 X 6V6 SIMUL- BRIGHT LINK POWER STANDBY PROGRESSIVE TREBLE BASS INPUTS VOLUME REVERB LINKAGE LASS OWER Pushed Bluesy Rhythm/Solo SAMPLE 2 Neck Single Coil 4 X EL-84 2 X 6V6 SIMUL- BRIGHT...
  • Page 12: Personal Sample Settings Page

    PERSONAL SETTINGS PAGE 4 X EL-84 2 X 6V6 SIMUL- BRIGHT LINK POWER STANDBY PROGRESSIVE TREBLE BASS INPUTS VOLUME REVERB LINKAGE LASS OWER 4 X EL-84 2 X 6V6 SIMUL- BRIGHT LINK POWER STANDBY PROGRESSIVE TREBLE BASS INPUTS VOLUME REVERB LINKAGE LASS OWER...
  • Page 13: Tube Noise & Microphonics

    with proper impedance loads...i.e. an 8 ohm speaker connected to an 8 ohm jack. Always insure that a speaker load of some kind is connected when using the amplifier. 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.
  • Page 14: Diagnosing Pre-Amp Tube Problems

    technician who will basically perform the same simple tests. If the tubes are still within their six-month warranty period, we will happily send you a replacement. Just note the color designation on the tube label so that we can send you the appropriate match. 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.
  • Page 15: Bias Adjustment

    NOTE: It is normal to hear a slight metallic ringing sound when tapping on the preamp tubes. As long as the tube does not break into oscillation or start crackling or any other form of bizzare noise, it is considered normal and functional. BIAS ADJUSTMENT: (Part of a continuous series) BEAM- CONFINING...
  • Page 16 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 BIAS ADJUSTMENT: (Continued) doing is establishing the correct amount of idle CURRENT that flows through the power tubes. But you can’t adjust the current directly, you can only change it by adjusting the amount of bias VOLTAGE that goes onto the tubes’...
  • Page 17 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 18 BLUE ANGEL FRONT VIEW SWITCH pt# 601073 703184 610120 BLUE LEN pt# JACK pt# 703047 PILOT LIGHT pt# SWITCH pt# 610110 601073 JACK pt# 703900 LIGHT HOLDER pt# 408010 KNOB pt# (all knobs) 4 X EL-84 2X6V6 SIMUL- BRIGHT LINK POWER STANDBY PROGRESSIVE...
  • Page 19 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 20 The Spirit of Art in Technology 1317 Ross Street Petaluma, CA 94954...

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