I’m looking for some speaker advice. I found this cool little 1970’s Tempo amp. I believe it’s related to the Univox amps of the time. It sounds pretty cool but the speaker is on its last legs. It starts to break up really early and is crackly. I’m looking to replace the speaker but want to maintain the quirky character of the amp. It’s a 20cm (8inch) 10 watt 8 ohm speaker. Can anyone suggest a replacement or at least a place to look for replacement speakers. Thanks in advance.