GO for the Gusto | Mesa/Boogie II instruction

Your amplifier is equipped with a metal shield that clamps in under the preamp tubes, to protect them from vibration, flying footswitches, and other hazards. To gain access to the preamp tubes, merely release the barbed nylon catches and the aluminum plate will fold down on concealed hinges. Changing preamp tubes is easier if you first remove one or both of the larger power tubes. Make certain you have all the tube pins aligned properly before pushing them in.

If rough handling of the amp has occurred, or when replacing tubes, make certain that the tubes are plugged all the way into their sockets and are centered within the metal holes of the chassis sheet metal. A tube that is leaning over in its socket can vibrate and buzz against the metal chassis, causing annoying noises. Or even worse, a crooked power tube can cause a reduction in available clean power, and break-up similar to that caused by a bad speaker. Should this occur, make certain that the power tubes are seated squarely in their sockets.

ENJOY! Most of all… enjoy your .50 Caliber Plus. We think you'll find it's a great sounding amplifier, built to satisfy professional demands for performance and reliability. And it should last a lifetime with only moderate care and maintenance. It's extremely “user-friendly” and there's almost nothing you can do to damage it, short of an accident or outright abuse. We've put ourbest into the design of the

.50 Caliber Plus, so you can get the most out of your playing. We've intentionally given it a real “spongy”feel with plenty of “give”, so it helps your playing and evensmooths over your little mistakes! (Or as one good player said, "It makes my sloppiness sound like expressiveness… I love it!")

So remember - when all's said and done,het essence of music is PLAYING! So grab your guitar and

GO FOR THE GUSTO!

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II specifications

Mesa/Boogie II stands as a landmark in the history of electric guitar amplification, known for its exceptional sound quality and versatility. Originally conceived in the late 1960s by Randall Smith, the brand quickly gained traction among musicians seeking a sonic upgrade from traditional amplifiers. The Mesa/Boogie II, introduced in the mid-1980s, captured audiences with its unique features and technologies tailored to professional performers.

One of the standout attributes of the Mesa/Boogie II is its dual-channel design, allowing players to switch between clean, articulate tones and high-gain distortion with the press of a footswitch. The amplifier offers a remarkable range of tonal possibilities, from sparkling cleans suited for jazz and pop to saturated leads that can cut through a mix in rock or metal contexts. This versatility is enhanced by the addition of a three-band EQ, enabling finer tuning of the frequency response to suit various playing styles and preferences.

Technologically, the Mesa/Boogie II incorporates several innovative features. The inclusion of the "Simul-Class" power amp design allows for an exceptional blend of tube saturation and solid-state reliability. This design marries the warmth of tube amplification with the punchiness of solid-state, resulting in rich, dynamic sound that is both powerful and responsive. Additionally, the Mesa/Boogie II utilizes the "Graphic EQ" option, offering a 5-band equalizer for even more extensive control over the amp's tone.

The construction quality of the Mesa/Boogie II is another hallmark of the brand. Built with durable materials and attention to detail, these amplifiers are designed to withstand the rigors of touring and live performances. The rugged chassis and premium components contribute to its reliability and longevity, making it a favored choice among professional musicians.

In terms of aesthetics, the Mesa/Boogie II features a sleek, robust design, often adorned with retro-inspired graphics and high-quality knobs. This not only makes the amplifier visually appealing but also reflects the brand's commitment to craftsmanship.

Overall, the Mesa/Boogie II remains a legendary amplifier that has solidified its status among guitarists. With its exceptional sound quality, innovative technologies, and meticulous build, it continues to inspire a new generation of players who seek the perfect blend of power and versatility in their musical expression. Whether on stage or in the studio, the Mesa/Boogie II is an enduring icon in the world of guitar amplification.