SAE A502 Bridged with 4 ohm speakers? Safe?

Anyone have any advice/insight. I want to run 4ohm speakers in bridged mode with this amp. The back of the amp states 8 ohms bridged. No mention of 4 ohms. Will I damage the amp running speakers with less resistance?
C10e20df 26e9 4dfb bf09 d59d063cfd57c421c