Adcom GFA GFA-5500 Leaflet

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

Home Audio Power Amps

ADCOM, LLC
8541 East Anderson Drive
Scottsdale, AZ 85255

Home Audio Power Amps

Tel: 480.607.2277

Fax: 480.348.9876

Email: infoadcom@adcom.com