Mesa/Boogie 45, 100, 55 owner manual CH1

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The Controls: (Continued)

GAIN : This control adjusts the predominant gain stage in each channels’ circuit with the function and taper being optimized for each individual channel. Remember that your Nomad is really three separate dual mode amplifiers built onto one chassis, so though each channel looks identical, the GAIN Control for each channel comes in a different place and adjusts a

Brightest

Most Balanced

different point in that channels circuit.

Warmer

 

 

CH1

 

GAIN

INPUT

TREBLE

In most guitar amplifiers, and especially in all-tube circuits, the GAIN Control is the most powerful control in the preamp. It shapes the overall style and character of the sound and is responsible for whether the sound is clean, overdriven or anywhere in between. In your Nomad, the GAIN Control is even more powerful. It not only determines the amount of drive, but also acts as an integral part of the tone control string as well.

To simplify the GAIN Controls’ role in shaping the overall tone of the sound we will look at it in two ways - 1; alone and 2; in conjunction with the tone controls.

1) By itself the GAIN Control has basically three tonal regions -

Low ( 7:00 - 11:00 ) provides the cleanest, least saturated sounds and in this region the sound will be brighter and contain more upper harmonics lending a three dimensional character to the sound.

Middle ( 11:15 - 2:00 ) enhances the saturation and replaces some of the upper harmonics with a richer, warmer quality and a fuller bottom end response. Not yet fully saturated, this region is the easiest place to get a great sound in all three channels. This region contains many of the Nomads’ best sounds...especially for soloing due to the crucial blend of an expressive attack combined with ample sustain.

High ( 2:15 - 5:00 ) saturates the signal and enhances low and low mid frequencies. While this region provides the maximum saturation and therefor sustain, it also compresses and softens the attack characteristics. For this reason we suggest using this higher region of the GAIN Control sparingly and only when maximum sustain is needed.

NOTE: Due to the Nomads’ extreme gain potential, the highest regions of the GAIN Control may possibly push the pre-amp tubes past what they can handle, producing microphonic squealing. While we screen and test the tubes your amplifier was shipped with and the tubes in your amp passed our rigourous test, we can’t predict how the tubes will respond over time exposed to extreme gain settings. Your tubes are warrantied for a period of 6 months under normal use, but you can save yourself the present and future inconvenience of having to deal with annoying microphonic tube problems by simply using a little common sense...Don’t turn the Gain all the way up!

If you must for a specific part or at very low volumes, back down the TREBLE and PRESENCE Controls. Your Nomad was designed to provide amazing gain and tone at less than extreme settings removing the need for you to crank everything all the way up. If you are not able to achieve the sound you want at sensible settings on any or all of the controls, your problem may lie elsewhere in the signal chain, i.e. pick-ups, cabinetry, processing etc. Keep in mind you can always call on one of our product specialist Monday through Thursday and seek some advice should you find yourself struggling to get the sound you want.

2.) GAIN - In conjunction with the Tone 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. Here the Tone control string is very active and provides maximum shaping power - allowing you to dial virtually any sound you desire.

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Contents Spirit of Art in Technology Page USE Common Sense and Always Observe These Precautions Table of Contents Overview Nomad Showing all 3 ChannelsModels 45, 55 OverviewFront Panel Nomad Tips for the Desert Rear View NomadTips for the Desert Quick Demo Settings ControlsCH1 CH1 Gain Trol is set low these two controls become dominant Channel 1 Normal / Pushed Channel Modes Channel 2 Normal / ModernSounds...especially overdrive sounds Front Panel Controls OutputRest Area Rear Panel Controls & Connections Rear Panel Controls & Connections Output onlyThese steps Without having to look at them CH2CH1 Reverb Channel 1 Factory Sample Setting Channel 1 Warm & Round Channel 1 Agro Crunch Channel 2 Factory Sample Setting Channel 2- Rotundo Channel 3 Factory Sample Setting Channel 3 Flat Out Nomad 45 Tube Task Chart Nomad 55 Tube Task Chart Nomad 100 Tube Task Chart Page Page Bias Adjustment Part of a continuous series Page Cheers Randall Smith Designer & President Speaker Impedance Matching & HOOK-UP Guide Speaker Impedance Matching & HOOK-UP Guide PositiveWiring SCHEMES...Amplifier to Speaker Cabinets Wiring SCHEMES...Amplifier to Speaker Cabinets Wiring SCHEMES...Amplifier to Speaker Cabinets 16 Ohm On TRIODES, Pentodes & Irishmen On TRIODES, Pentodes & Irishmen Page ALL Knobs Rear Panel Nomad Front Panel Nomad Mesa Boogie 707 778-6565 FAX no

45, 55, 100 specifications

Mesa/Boogie, a name synonymous with innovation in the guitar amplification world, has carved out a niche in the hearts of musicians with its formidable lineup of amplifiers. Among these, the Mark series stands out, particularly with models like the Mark 100, 55, and 45. Each model brings its unique flavor and versatility, allowing players to craft their sound with precision.

The Mesa/Boogie Mark 100 is a powerhouse in the 100-watt category. It boasts multiple channels, allowing guitarists to switch between clean, crunchy, and high-gain tones effortlessly. One of its standout features is the onboard EQ, which facilitates fine-tuning for different guitars, pickups, and musical styles. The Mark 100 is engineered with Mesa's signature Dyna-Watt technology, providing a dynamic response at various volume levels without sacrificing tonal quality. This responsiveness makes it ideal for both live performance and studio recording, as it yields rich harmonic overtones and a wide dynamic range.

Moving to the Mark 55, this model offers a refined approach with 55 watts of power. It retains many features present in the Mark 100 but is more accessible for players who prefer a slightly lower wattage. The Mark 55 excels in mid-gain settings and is popular among blues and rock guitarists. Its Dual Rectifier circuitry can dial in everything from smooth, bluesy overdrive to tight, aggressive rock tones. The amp also incorporates a versatile effects loop, providing seamless integration with pedals and processors, making it a favorite among pedal enthusiasts.

The Mark 45, perhaps the most compact of the trio, brings 45 watts of power to the table, making it a versatile choice for players seeking portability without compromising tone. It retains critical features such as multiple channels and a powerful EQ section while being lighter and easier to transport. The Mark 45's sweet spot is found in its ability to deliver rich, saturated tones at manageable volume levels. Often favored for intimate gigs and home recordings, its versatility allows players to explore genres from jazz to metal with equal flair.

All three Mesa/Boogie amplifiers utilize high-quality components designed for durability and peak performance. Their construction is robust, ensuring reliability on stage or in the studio. With advanced features such as power scaling and tube rectification options, musicians can tailor their sound precisely.

In summary, the Mesa/Boogie Mark 100, 55, and 45 each present guitarists with distinctive tonal characteristics and features that enhance playability and sound. From the powerful performance of the 100 to the compact yet versatile 45, these amplifiers deliver the high-quality, rich tones that Mesa/Boogie is renowned for, catering to the diverse needs of players across genres.
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