IRD MB-100 amps - replacing the TDA7294

Hello, I just recently purchased a pair of monoblock IRD MD-100 amps for $200 locally from a girl that just wanted to get rid of them and couldn’t demo, but said she could refund me if I ran into any problems.

I brought them home and I realized no sound on one amp and the audio device was completely blown. It appears the circuitry is very simple on this and I figured it to just be a bad TDA7294.

I plan to replace it but curious if this is a direct replacement and if I would need to replace on both amps to match. Any other upgrades or modifications I could do?

The girl did offer to give me $100 back for my troubles.