Can't you use a learning remote if you have the codes?
Is the Audio-gd NFB-6 the least liked Audio-gd product? - Page 3
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Kingwa emailed me the codes but more significantly he sent me two replacement remotes for the very reasonable cost of just $5 US. The replacement remotes work OK but have to be aimed directly at the front of the amp to transmit the signal. (Better than nothing.)