Mesa/Boogie M-pulse Simul State Bass Amplifier Owner's Manual
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Summary of Contents for Mesa/Boogie M-pulse Simul State Bass Amplifier
- Page 1 OOGIE Owner's Manual...
- Page 2 Greetings from the Home of Tone Congratulations on your choice of the M-PULSE as your Bass amplifier and welcome to the MESA/Boogie family! As a discriminating player you probably know that you have purchased the most comprehensive instrument for amplifying Bass that is available.
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Page 3: Table Of Contents
Table of Contents Precautions Overview Instant Gratification Helpful Hints FRONT PANEL: Instrument Inputs: ACTIVE & PASSIVE GAIN BASS TREBLE PARAMETRIC EQUALIZER GAIN CONTROL: Parametric EQ FREQUENCY CONTROLS: Parametric EQ COMPRESSOR THRESHOLD RATIO MAIN Output SOLO Output POWER SWITCH REAR PANEL: FUSE A.C. -
Page 4: Precautions
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: 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
OVERVIEW: Congratulations on your choice of the M-PULSE as your Bass amplifier. This latest offering is our most comprehensive amplifier for electric bass and it brings together both new and old technology, solid state and vacuum tube design to create an instrument of unparalleled performance and soulful sound. -
Page 6: Instant Gratification
OVERVIEW: Continued This power is interfaced to you via a pair of Output controls that serve as overall MASTER VOLUMES. These are MAIN and SOLO and the two astound bassists much as they did when we began including them on our guitar amplifiers. The logic is in their names MAIN and SOLO. -
Page 7: Helpful Hints
HELPFUL HINTS: 1. Connect your A.C. Power Cable to a grounded outlet. Avoid ground lifts (3 to 2 prong adapter) whenever possible. 2. The optimum speaker load for your M-PULSE is 4 Ohms. You may use a cabinet (s) of a higher rating safely (8 Ohm) with no degradation in tone, however the amplifier will not produce its full rated wattage. -
Page 8: Front Panel
FRONT PANEL: INSTRUMENT INPUTS: ACTIVE / PASSIVE These are the Instrument Input jacks and between them you can match the signal output level of virtually any instrument. The ACTIVE Input is padded down for greater input stage headroom and this works well with basses that use an on-board pre-amp with an active tone control circuit. -
Page 9: Bass
FRONT PANEL CONTROLS: (Continued) BASS: This control is responsible for the basic mix of low frequencies in the tube pre-amp. As mentioned earlier in the Helpful Hints section, the BASS control is an active shelving type control as opposed to a passive style control. This means that a center Q point has been chosen and this control allows you to either boost or cut that frequency. -
Page 10: Treble
FRONT PANEL CONTROLS: (Continued) TREBLE: retaining all the necessary cut and focus associated with a traditional passive TREBLE control. Continued As the control is dialed below 12:00, it begins a 6db per octave cut from 3.2Khz to the shelving point at 723Hz, where it continues to attenuate all frequencies above 723Hz until - 20db is reached where cut gain remains constant until the control reaches 7:30 (off). -
Page 11: Frequency Controls: Parametric Eq
FRONT PANEL CONTROLS: (Continued) GAIN CONTROLS: Parametric EQ expect to have a great sound. Make small moves and then allow your ears Continued time to adjust to the difference. With controls this powerful, EQ Hangover is a part of the buzz. Don’t be surprised if after tweaking for an hour with the PARAMETRIC, you go back to your starting point and think the amp is broken...it’s not...your ears are suffering from an overdose of EQ. -
Page 12: Compressor
FRONT PANEL CONTROLS: (Continued) COMPRESSION: This section of your M-PULSE controls the processing of dynamics and this in turn, feeds the SIMUL- STATE power section. It is another powerful tool that should be used with taste as it also has the power to be easily misused resulting in an unnatural sound with slaughtered dynamics. -
Page 13: Ratio
FRONT PANEL CONTROLS: (Continued) RATIO: From 12:00 on up to the maximum setting of “00” (Infinity) is reached at 5:30, an extremely powerful compres- Continued sion effect is produced - at which point the signal is fully compressed. There are very few times you will ever need this much compression, but if you ever do, it is all here in this upper range. -
Page 14: Rear Panel
REAR PANEL CONTROLS: CAUTION Unplug power M-PULSE TM SIMUL STATE BASS AMPLIFIER SLAVE OUT LEVEL DIRECT OUT EFFECTS before removing fuse or TUBE DRIVEN-MOSFET POWER bolts holding chassis HANDBUILT IN PETALUMA, CALIFORNIA LEVEL F.S. POST 100% TUNER FOOT GROUND SPEAKER OUTPUT OUTPUT SWITCH RETURN... -
Page 15: Slave Out
REAR PANEL CONTROLS: (Continued SLAVE OUT: This 1/4" jack and control provide a signal derived from the speaker jack. Perfect for using the M-PULSE as a master pre-amp, or slaving to additional power amps for more power when needed. Some players use the SLAVE to derive an FX Send Signal and go to other amps for their wet sound. -
Page 16: Effects: Send, Return, Mix And Progran Switch
Feel free to contact us directly and we’ll be happy to send you out another one for a nominal charge plus shipping or visit your local Mesa/Boogie Pro Center. Well, that pretty much does it for the features except for the most exciting feature of all...TONE. Now that you have a grasp of all the M-PULSE can do, the only thing left is to plug in and play. -
Page 17: Factory Sample Settings
FACTORY SAMPLE SETTING Huge & Round (Parametric EQ Optional) ACTIVE SIMUL STATE POWER 0 db INSTRUMENT INPUTS 40 Hz 1.4K GAIN BASS TREBLE THRESHOLD RATIO MAIN SOLO PASSIVE FOUR - STAGE VACUMM TUBE PREAMPLIFIER SEMI - PARAMETRIC EQUALIZER COMPRESSION MASTER VOLUMES POWER Scooped R &... -
Page 18: Factory Sample Settings
FACTORY SAMPLE SETTING Super Push (Parametric EQ Optional) ACTIVE SIMUL STATE POWER 0 db INSTRUMENT INPUTS 40 Hz 1.4K GAIN BASS TREBLE THRESHOLD RATIO MAIN SOLO PASSIVE FOUR - STAGE VACUMM TUBE PREAMPLIFIER SEMI - PARAMETRIC EQUALIZER COMPRESSION MASTER VOLUMES POWER Punch ACTIVE... -
Page 19: Tube Noise & Diagnosing Pre-Amp Tube Problems
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 20: Personal Setting Pages
PERSONAL SETTINGS PAGE ACTIVE SIMUL STATE POWER 0 db INSTRUMENT INPUTS 40 Hz 1.4K GAIN BASS TREBLE THRESHOLD RATIO MAIN SOLO PASSIVE FOUR - STAGE VACUMM TUBE PREAMPLIFIER SEMI - PARAMETRIC EQUALIZER COMPRESSION MASTER VOLUMES POWER ACTIVE SIMUL STATE POWER 0 db INSTRUMENT INPUTS... - Page 21 PERSONAL SETTINGS PAGE ACTIVE SIMUL STATE POWER 0 db INSTRUMENT INPUTS 40 Hz 1.4K GAIN BASS TREBLE THRESHOLD RATIO MAIN SOLO PASSIVE FOUR - STAGE VACUMM TUBE PREAMPLIFIER SEMI - PARAMETRIC EQUALIZER POWER COMPRESSION MASTER VOLUMES ACTIVE SIMUL STATE POWER 0 db INSTRUMENT INPUTS...
- Page 23 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 24 The Spirit of Art in Technology (707) 778-6565 FAX NO. (707) 765-1503 1317 Ross Street Petaluma, CA 94954...