Remember that with a bridge circuit you cannot use 25V, you will easily exceed the dissipation of the chip. The bridge circuit is rated for a maximum of 16V rails (from a 12V transformer) and only into a rated impedance of 8 ohms. The ST chips are exceedingly fragile and if you exceed SOA you have a fried chip, so you have been warned.
In fact, my future plan was to build bridge for sub. Then, I will not be able to use single trafo for two chips. And if single trafo, should be 12-0-12 only.
Short story, I build several chips but still not settled.
1. TDA1554Q Build=Easy, Mute=Yes, Loudness=Poor, Price=Expensive
2. TDA2030 Build=Very Easy, Mute=No, Loudness=Poor, Price=Very Cheap
3. TDA2050 Build=Very Easy, Mute=No, Loudness=Good, Price=Cheap
4. LM3886 Build=Easy, Mute=Yes, Loudness=Very Good, Price=Very-Very Expensive
5. TDA7294 Build=Not Easy, Mute=Yes, Loudness=Very Good, Price=Very Expensive
5. TDA7265 Mute=Yes, Loudness=Don't know, Price=Cheap Rs.48 per chip
You have written in another thread, when +- voltage properly balanced then tda2030,2050 does not POP, but practically not possible to me.
By suppling the 12-0-12 trafo to TDA7265 and the loudness is equal to tda2030 then my purpose does not solve. Only advantage is MUTE.
What to do ?
Today, I have purchased everything required to tda7265 (easily available to local indian mkt) and going to build.
Thank you & Best Regards.