United States

Adcom is a brand that specializes in producing high-fidelity audio equipment.

Adcom

The Adcom GTP-500II is a versatile preamplifier/processor that supports audiophiles in achieving high-quality sound reproduction. Designed with a robust and user-friendly interface, it features two gold-plated variable RCA outputs labeled 'Lab' and 'Norm,' offering flexibility in connectivity and sound customization. The unit has a frequency response range of 5Hz to 65kHz, which contributes to its ability to deliver precise audio quality over a wide spectrum. With dimensions of 17" width, 3.25" height, and 11.375" depth, it fits conveniently into most audio racks. The GTP-500II is noted for its superior phono section, making it an excellent choice for vinyl enthusiasts. However, it is important to verify the functionality of the FM tuner section, as issues have been reported with this component in older units. The product typically comes with a non-OEM remote control that provides basic operation of the device. Many users appreciate its sound quality and the value it offers for those looking to enhance their audio experience without significant financial investment.

GTP-500

The Adcom GFA-555 is a stereo power amplifier manufactured by Adcom, a company known for producing high-quality audio equipment. It was first introduced in the late 1980s and is still highly regarded among audiophiles today. The GFA-555 features a solid-state design with a power output of 200 watts per channel into 8 ohms. It uses a unique patented balanced bridged configuration to deliver exceptional sound quality with low distortion and high power capability. The amplifier has gained a reputation for its strong build quality, reliability, and transparent sound reproduction.

GFA-555

The Adcom GFA-555 II is a stereo power amplifier that was first introduced in the late 1980s. It has a power output of 200 watts per channel into 8 ohms. The design features a large toroidal transformer for power supply and high-quality components for optimal sound quality.

GFA-555 II

The Adcom GFA-535 is a dual-mono power amplifier designed to deliver high-quality audio performance at an affordable price point. Originally introduced in the late 1980s and early 1990s, it was priced around $300 and offered a power output of 60 watts per channel into 8 ohms. This model features separate power supplies for each channel, a design principle aimed at minimizing crosstalk and enhancing sound clarity. The GFA-535 was engineered by Nelson Pass, a prominent figure in audio amplifier design, and its construction includes a high-current power supply and substantial heat sinking for reliable operation. The amplifier's specifications also reveal its capability to output up to 95 watts per channel into 8 ohms and 145 watts per channel into 4 ohms when modified with upgraded components. The unit features dual pairs of output transistors, which can be upgraded to accommodate a third pair for improved performance when heavily modified. Overall, the GFA-535 is known for delivering a robust sound and reliable performance, making it a popular choice among audiophiles.

Adcom

GTP-500

GFA-555

GFA-555 II

GFA-535

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