I am using this with my FT 991A. I find the audio quality is worse than the internal speaker. I was a little dissapointed. However it looks good and matches the radio.
Note that this is reviewed from my personal experience.
works ok but very very small speaker insert but seem to work ok for my needs
this speaker is ok for most users but had a very small flat speaker element costing about 2 or 3 pounds so yo are paying over 100 pounds for a very nice looking box.. jeff..
The SP10 speaker is a well made and matching my Yaesu FT 991.
With me being a little hard of hearing i find the quality of sound from the speaker enhances the audio from the radio.