Important Information About Tubes and Tube Products:

A Brief History Of The Tube:

In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Years later, in 1905, Fleming expanded on Edison's discovery and creat- ed the "Fleming Valve". Then, in 1907, Dr. Lee de Forest added a third component – the grid – to the "Fleming's Valve" and the vacuum tube was a fact of life. The door to electronic amplifi- cation was now open.

During World War II, data gleaned from their intensive research on the detectors used in radar systems led Bell Telephone Laboratories to the invention of the transistor. This reliable little device gained quick support as the new component for amplification. The death of the vacuum tube seemed imminent as designers, scientists, and engineers reveled in the idea of replacing large, fragile glass tubes with these small, solid-state devices.

However, there were (and still are) many serious listeners who realized that the sound produced by a "transistor" amplifier is significantly different from that produced by a tube amplifier with identical design specifications. They considered the sound produced by these new solid-state devices to be hard, brittle, and lifeless. It was determined that solid-state devices produced a less musical set of harmonics than tubes. When pushed past their limits, they tend to mute the tone and emphasize the distortion.

Tubes, on the other hand, produce a more musical set of harmonics, the intensity of which can be controlled by the player. This characteristic adds warmth and definition to the sound which has become the hallmark of tube amplifiers. When tubes are driven into clipping, the harmonic overtones can be both sweet and pleasing or intense and penetrating, depending on the musi- cian’s musical taste and playing technique.

Over the years, application engineers have designed a number of outstanding solid-state ampli- fiers that sound very, very good. Some use special circuitry which enables them to simulate the distortion characteristics of a tube amplifier. However, the tube amplifier, still held in the highest esteem by many musicians, offers a classic "vintage" sound in a contemporary market.

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Ampeg B-200R manual Important Information About Tubes and Tube Products, Brief History Of The Tube
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B-200R specifications

The Ampeg B-200R is a standout model in the realm of bass amplification, particularly known for its rich tone and exceptional versatility. This combo amplifier is designed for bassists who seek a reliable and powerful sound, whether practicing at home, jamming with friends, or performing on stage.

One of the most prominent features of the B-200R is its 200-watt RMS power output, providing ample volume to cut through any mix. The amp is equipped with a 15-inch custom speaker, which delivers deep, resonant bass tones, ensuring that low-end frequencies are well represented. The combination of the substantial power and the large speaker allows for an impressive dynamic range that caters to various musical styles.

The Ampeg B-200R boasts several innovative technologies that enhance its usability. The built-in preamp utilizes Ampeg’s advanced circuitry, granting musicians a broad palette of tones. The amp features a three-band EQ, consisting of bass, midrange, and treble controls, allowing players to sculpt their sound with precision. Additionally, the midrange frequency can be adjusted via a midrange knob, providing even greater flexibility for shaping the tonal characteristics of the instrument.

Another significant feature is the ultra-hi and ultra-lo switches that can be engaged to boost specific frequencies, ensuring the bass can stand out in a mix or deliver a more subdued presentation when desired. This versatility makes the B-200R suitable for a wide array of musical genres, from rock and pop to jazz and funk.

In terms of connectivity, the B-200R comes with an XLR direct output for easy integration with PA systems or recording equipment, allowing musicians to easily capture their tone without compromising sound quality. It also features a headphone output, perfect for silent practice sessions.

The overall build quality of the B-200R is another characteristic that stands out. It features a rugged, roadworthy design that ensures durability during transport and performance. Its classic look, complemented by the signature Ampeg diamond grille and a stylish vinyl covering, appeals to bassists who appreciate both aesthetics and sound quality.

In summary, the Ampeg B-200R is a powerful, versatile bass amplifier that combines modern features with trusted Ampeg tradition, making it an excellent choice for bass players at any level. Its robust construction, superior tone shaping capabilities, and convenient connectivity options provide a reliable solution for all bassists looking to enhance their sound.
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