Adcom GFA-535 specifications

Category : Power amplifiers

Brand : Adcom

Tech nical Data:

• Product Type: High End Power Amplifier
• Type: Transistor Amplifier
• Brand: Adcom
• Country: America / Arizona
• Audio Inputs: Stereo L/R RCA
• Number of Channels: 2
• Model: GFA-535
• Price: about 500,- dollars (1996)

• Output power
  • 60W into 8 ohms (17.8dBW)
  • 100W into 4 ohms
• Input sensitivity:
  • 970mV RMS < /li>
• Input Impedance:
  • 100k ohms.
• Voltage
  • 220/240 VAC 50-60 Hz.

• 60W into 8 ohms (17.8dBW)
• 100W into 4 ohms

970mV RMS

• 100k ohms.

• 220/240 VAC 50-60 Hz.

• Dimensions (W x H x D)
  • approx. 430 x 82 x 300 mm
• Weight
  • 8.6 kg

• approx. 430 x 82 x 300 mm

• 8,6 kg

• Excerpt from published test report:
• After the GFA-535 so excited me, the question arose how good are the other models.
• The interest was mainly for the GFA-545, so I bought one.
• The structure of the boards and the components used are similar.
• As far as I know, the 545 was the template for the 535. However, the 535 was designed as a double mono power amplifier.
• The sound comparison of the two power amplifiers was simple, a decision could be made quickly and clearly.
• The ADC OM GFA-535 is an exceptional power amplifier, the purest high-end.
• The sound is rousing and enchanted, the room illustration is realistic and full of music (live character).
• In comparison, the GFA-545 only makes sounds without body and space.
• There is a lack of homogeneity in the frequency response, especially in the lower midrange, so that the right "sound" is not created.
• It was only after a good hour with "over room volume" that the 545 was able to approach the 535,
• but without achieving its lightness and joy of playing.
• The GFA-535 will be a random product and a stroke of luck and is unique for the money.

• Design suitable for the ADCOM GTP-400 power amplifier
• Especially the GFA-535 is considered the tonal highlight of this series and is therefore rarely found on the used market.

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