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Amplifier for keyboard instrument

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Vermes

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It is a design of amplifier for keyboard instrument, which is based on kit AVT2180. Housing was made of 22mm thick chipboard. Supply transformer 2x25V. Output power is approximately 2x50W RMS. One of the advantages of such solution is small size of device: 50x50x25cm. Above the woofers there are dome tweeters. Grids from computer fans were screwed to them in order to protect the domes. Chips were screwed to the tunnel heat sink from Fischer, which was equipped with a fan switching when the temperature of the heat sink reaches 70 degrees Celsius. The amplifier weighs 23,5kg.

Speakers:
  • subwoofers: 8” from Beyma
  • tweeters: Monacor DT 300



Link to original thread - Piecyk pod instrument klawiszowy.
 

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