Home Audio Power Amps

 

 

GFA-5400

 

GFA-5500

 

GFA-5802

 

 

 

 

 

 

 

Number of channels

 

2

 

2

 

2

Watts per channel into 8 ohms

125

200

300

 

 

 

 

Watts per channel into 4 ohms

 

200

 

350

 

450

Bridged power @ 8 ohms

 

n/a

 

n/a

 

n/a

Rated THD

0.018%

0.018%

0.018%

THD + noise at full power into

 

 

 

 

 

 

8ohms/4ohms typical

 

 

 

 

 

 

20Hz

0.018% / 0.018%

0.018% / 0.018%

0.015% / 0.025%

1kHz

0.020% / 0.020%

0.020% / 0.020%

0.020% / 0.025%

20kHz

0.140% / 0.165%

0.130% / 0.160%

0.150% / 0.150%

 

 

 

 

 

 

 

Input required for 1 watt output

 

0.1 volt

 

0.1 volt

 

0.1 volt

Input required for rated output

 

1.125 volts

 

1.4 volts

 

1.7 volts

 

 

 

 

 

 

 

Dynamic headroom into 4 ohms

 

1.7dB

 

1.7dB

 

2.3dB

IM distortion CCIF full power any

 

 

 

 

 

 

combination 4kHz to 20kHz

<0.035%

<0.035%

<0.075%

 

 

 

 

 

 

 

Frequency Response

 

 

 

 

 

 

 

 

 

 

 

 

 

20Hz to 20kHZ

 

+0, -0.25dB

 

+0, -0.25dB

 

+0, -0.25dB

Power bandwidth (-3dB)

 

3Hz to 130kHz

 

3Hz to 130kHz

 

3Hz to 130kHz

 

 

 

 

 

 

 

Gain

 

29dB

 

29dB

 

29dB

Input impedance: Unbalanced

 

49.9k ohms

 

49.9k ohms

 

105k ohms

 

 

 

 

 

 

 

Input impedence: Balanced

 

n/a

 

n/a

 

10k ohms

Signal to noise ratio "A" weighted at

 

 

 

 

 

 

rated power into 8 ohms

 

>100dB

 

>100dB

 

>105dB

 

 

 

 

 

 

 

Power consumption

 

 

 

 

 

 

(all channels driven)

 

 

 

 

 

 

 

 

 

 

 

 

 

Quiescent

 

150VA

 

192VA

 

540VA

Maximum

 

960VA

 

1440VA

 

1140VA

Dimensions (inches) HxWxD

 

 

 

 

 

 

Chassis

 

5 x 17 x 11½

 

7 x 17 x 13

 

14 x 17 x 8

Maximum

 

5½ x 17 x 12½

 

7º x 17 x 14

 

15½ x 17 x 8º

 

 

 

 

 

 

 

Weight (lbs)

 

 

 

 

 

 

 

 

 

 

Net

 

26.0

 

44.0

 

48.0

Packed

 

30.0

 

50.0

 

55.0

 

 

 

 

 

 

 

ADCOM, LLC

 

Tel: 480.607.2277

8541 East Anderson Drive

 

Fax: 480.348.9876

Scottsdale, AZ 85255

Home Audio Power Amps

Email: infoadcom@adcom.com

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Adcom GFA-5802, GFA-5500 manual Home Audio Power Amps

GFA-5802, GFA-5500 specifications

The Adcom GFA-5500 is a robust power amplifier renowned for delivering high-quality audio performance in a range of home audio systems. As a part of Adcom's legacy, it reflects the brand's commitment to creating reliable and efficient audio equipment favored by audiophiles and music enthusiasts alike.

One of the standout features of the GFA-5500 is its impressive power output. The amplifier boasts a dual-channel design, capable of delivering 200 watts per channel into 8 ohms, and an even greater 300 watts per channel into 4 ohms. This power ensures that it can drive a variety of speakers with ease, regardless of their impedance. The GFA-5500 is particularly noted for its ability to maintain dynamic range without distortion, even at high volume levels.

In addition to its raw power, the GFA-5500 incorporates advanced technologies that enhance sound quality and reliability. It employs a high-current output stage that provides better transient response, contributing to the overall clarity and detail of the audio. The amplifier features a patented DC Servo circuit that maintains accurate DC balance, preventing any unwanted DC signals from reaching the speakers. This technology helps protect the speakers while ensuring a clean power supply for high-fidelity audio.

The GFA-5500 is designed with versatility in mind, featuring multiple input options including RCA connections, which make it compatible with a wide range of audio sources. The amplifier also includes a bridgeable design, allowing users to combine both channels into a single output for pushing larger speakers or subwoofers that demand more power.

Another notable characteristic of the GFA-5500 is its thermal management system. The amplifier incorporates large heat sinks that ensure efficient dissipation of heat, allowing for continuous operation without overheating. This reliability makes the GFA-5500 ideal for extended listening sessions.

Aesthetically, the GFA-5500 boasts a sleek and professional design, characterized by its solid build quality and a minimalist front panel that clearly communicates its functionality. The use of high-quality components in its construction ensures durability and longevity, making it a worthy investment for any audio enthusiast.

In summary, the Adcom GFA-5500 is a powerful and reliable amplifier that combines advanced technologies with user-friendly features. Its impressive power output, clarity, and thermal management make it a top choice for anyone looking to elevate their audio experience. Whether used in a casual listening environment or a dedicated home theater system, the GFA-5500 stands out for its performance and craftsmanship.