SPKR ON / SPKR MUTE:

REAR PANEL CONTROLS & CONNECTIONS: (Continued)

RECORDING OUT : This 1/4” jack captures the sound of your Nomads’ pre-amp and shapes the sound, enabling direct insertion into a console for both recording and live reinforcement applications. It produces a mono signal and can send a level that should be adequate, if not optimum, for most mixing consoles. The level of each Channel is dependant on the Channels’

CH2

CH3

MASTER Control. Less saturated sounds will produce greater dynamics and therefor a stronger sig-

CH1

FTSW

nal at this Output with Channel 1 “Normal” producing the potentially hottest level. It is always good

 

 

practice to start with the consoles’ Input attenuator off and bring the level up slowly - to avoid damage

 

 

to playback monitors in case you have inadvertantly dialed up an extreme signal level.

FUSE

Brightness and upper harmonics may be adjusted by the PRESENCE Control to balance the three sounds and is especially important to great solo sounds in Channels 2 & 3.

3 A SB

FOOTSWITCH

 

 

Also, remember to use the BASS Control with care when using the Recording Output to interface to a

 

 

SOCKET

 

RECORDING

console. Extreme settings can potentially cause damage to your playback monitors.

BELOW

 

 

 

 

This two position mini-toggle mutes the signal at the driver stage to allow direct recording late at night or any time the sound of the speaker(s) is not apropriate. SPKR ON (up) allows the power section to receive signal and produce sound.

SPKR MUTE ( down ) stops the signal at the driver stage - sending it to the RECORDING

 

FUSE

 

 

 

SPKR ON

Output only.

 

 

 

 

 

 

 

 

 

 

3 A SB

 

 

 

 

 

NOTE: For personal monitoring of your Nomad without any sound from the speaker the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FOOTSWITCH

 

 

 

SPKR MUTE

Recording Output may also be used to drive a pair of heaphones. Extreme caution should

 

SOCKET

 

 

 

 

 

 

RECORDING

be used to avoid damaging your ears or the headphones since the level is optimized for

 

BELOW

 

 

 

 

 

 

 

 

 

consoles ...making it a bit hot for the headphone application. Start with the Channel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MASTER Controls off and slowly increase to the desired level.

 

BIAS SELECT - Nomad 55 & 100 Models:

Nomad 55 and 100 models incorporate a Bias select switch to enable you to use the

stock compliment of 6L6 power pentodes or switch safely to one ( or two ) pair of EL34 type tubes. Switching from the stock 6L6 harness

 

 

 

 

 

 

 

 

will revoice the entire amplifier with a distinct emphasis on upper harmonics and a top

 

 

 

 

 

 

 

 

end spread that may be preferred for certain styles. The 6L6‘s provide the most bal-

CH2

 

CH3

CAUTION !

 

anced response across the wide spectrum of sounds possible in the three channels,

CH1

 

SWITCH MUST MATCH TUBES

 

FTSW

 

 

 

 

 

but some amazing and different sounds are possible with the EL34’s and at some

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

point we suggest experimenting with these tubes...especially in the studio! The multi-

 

 

 

 

 

 

 

 

 

 

 

6L6

BIAS EL34

track domain puts less emphasis on channel switching versatility and more on spe-

FUSE

 

 

 

 

 

 

 

cific, identifiable sounds so that any global compromise is not a problem. The EL34’s

 

 

 

 

 

 

 

tend to work best in all three channels when they are used in conjuntion with lower

 

 

 

SPKR ON

3 A SB

 

 

GAIN and higher MASTER or OUTPUT Control settings...turning up the power amp

 

 

 

 

 

 

 

FOOTSWITCH

 

 

SPKR MUTE

showcases their classic response best . Channel 1 in both modes is our favorite atti-

 

 

RECORDING

 

 

 

 

tude adjustment, with low GAIN Control settings in Channels 2 & 3 following close

BELOW

 

 

 

 

 

SOCKET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

behind due to slightly decreased focus - as compared with the 6L6’s.

 

 

 

 

 

 

 

 

NOTE: The BIAS SELECT MUST BE SET TO MATCH THE TUBES IN USE ! Failure to check this switch could result in damage to your amplifier. ALWAYS CHECK THE BIAS SELECT WHEN SWAPPING TUBE TYPES !

PAGE 15

Page 19
Image 19
Mesa/Boogie 45, 100, 55 owner manual Rear Panel Controls & Connections, Output only

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.