• Item: 100W Chip amp  
  • Type: retro-thermionic - “Cello”  
  • Posted: 21 May 2021  
  • Builder: mwhouston  
  • Country: Australia  
  • Comments: 0  

100W chip amp

Chips for power amps are continually improving. The TDA7293 is capable for 120W in my configuration this amp will produce 100W. The kit comes with all components, PCB, heat sink etc. The PS is onboard and all that is required is a 30-0-30V tranni. I used a 300VAC toroid because I had it on hand.

The enclosure is two tone steel and Al and is very solid. Solid brass gold plated speaker binding posts with quality RCAs. Hookup wire is all Cat5 twisted pair with no shielded wire. Not required. The enclosure is earthed and fused. The sound is extremely balanced and very engaging to listen to. Bass is very extended and well controlled. At low to medium volumes THD is 0.001%

The overall sound is very dynamic and challengers my more powerful amps which cost three times the price. The amp module kit is $A15 delivered. Hard to beat. Of course the main cost is the tranni and enclosure. Very impressed.


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