Matching 2SC2922 & 2SA1216 Outputs In 8000P

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I'm fixing a relatives Audiolab 8000P amp with 2 Pairs of these outputs per Channel. It was overheated do to being too enclosed. Sound was extremely distorted before it died. A few outputs are bad.

I purchased 10 ea (less Expensive @ 10+) of Sanken 2SC2922 with all being 93Y & Sanken 2SA1216 with all being 03Y.

Being all Y's is this close enough matching?

One should replace in pairs right?

Is it best to replace all with theses pairs so they match better?

Is there anything else I should check?

Thanks very much in advance!

Randy
 
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