TDA7294 based Sub amp - experience/feedback? - diyAudio
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Old 3rd April 2014, 03:31 AM   #1
dskum is offline dskum  Canada
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Default TDA7294 based Sub amp - experience/feedback?

Have been a reader here for a while. Just wanted to get a quickie sub amp for a passive sub.

came across the following in eBay for 100w.
100W Mono Audio Power Amplifier Board TDA7294 Ind | eBay
Tda7294 based
Has pre amp stage
Has speaker protection

Already have a nice transformer 32-0-32 and a large enough heat sink sitting around. Thought will buy the above board and replace to tda7293 and might have a nice decent amp. Looks nice for the price. Just thought if any one has bought one and to have any feedback?

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Old 3rd April 2014, 04:27 AM   #2
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Location: Toronto
That's about +/-45v after rectification. Even with an 8Ohms sub your chip won't last long

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Old 3rd April 2014, 07:14 PM   #3
dskum is offline dskum  Canada
diyAudio Member
Join Date: Apr 2014
Thanks for the reply, yes 45v without load. With load would think would be around 40-42 vdc. Also Td7293 is capable of max 60vdc. So thought its well under specs provided the heat is taken care of. Anyways its not going to be driven full load all the time.

planning to get as kit so i can get 7293 in board instead of 7294.

Any further thoughts.
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