Adcom GFA-555 (555)

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Brand: Adcom

The Adcom GFA-555 (also known simply as the GFA-555 or the model 555) is a high-performance stereo amplifier that was first introduced by Adcom in the late 1980s. It quickly gained a reputation as one of the most popular and highly-regarded amplifiers in its class due to its exceptional sound quality, versatility, and reliability.At its core, the GFA-555 is a high-current, class-AB design that delivers engaging, dynamic, and detailed audio reproduction. It uses carefully selected components, such as oversized power transformers, heavy-duty filter capacitors, and high-quality audio op-amps, to ensure precise and flat frequency response, low distortion, and wide dynamic range. Its output power is rated at 150 watts per channel into 8 ohms and 300 watts per channel into 4 ohms, making it suitable for a wide variety of speakers and room sizes.One of the most distinctive features of the Adcom GFA-555 is its flexibility and versatility. It supports a wide range of inputs and output configurations, including single-ended RCA, balanced XLR, and tape loop connectivity, as well as speaker select and bridged mode operation. It also offers adjustable bass and treble tone controls, a stereo balance control, and a front-panel headphone jack with its own dedicated headphone amplifier.Another benefit of the Adcom GFA-555 is its ease of use and setup. It features a classic analog meter display and intuitive front-panel controls that are simple and intuitive to operate. The amplifier is also incredibly well-built and durable, with a robust aluminum chassis, heavy-duty aluminum faceplate, and high-quality components that are designed to last for many years of trouble-free use.Overall, the Adcom GFA-555 (555) is an excellent choice for audiophiles and music lovers who demand exceptional sound quality, flexibility, and reliability in their stereo amplifier. With its powerful and versatile design, rich heritage, and passionate community of users, it remains a popular and highly-regarded amplifier today, more than 30 years after its initial release.

Power Output: 200W into 8Ω (stereo), 600W (mono)
Frequency Response: 10Hz to 20kHz
Distortion: 0.09%
Damping Factor: 800
Speaker Impedance:
Input Sensitivity: 1.75V
Signal to Noise Ratio: 110dB
Dimensions: 185 x 432 x 310 mm
Weight: 16 kg
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