[Ron Ramirez]

Yes, the 89 uses either a K-7 or a K-21 speaker. The field coil and pot of the K series speakers are larger than those of the S-7, but the field coils of both the K-7/K-21 and S-7 are rated at 65 mA. The K-7/K-21 will produce a bit more bass due to the larger field.

Remember, the model 60 was a cheaper radio than the 89, so it had a cheaper speaker with a smaller field and pot.

Don't forget Rich Stamer in NJ if you decide to have one of those speakers reconed...

https://ammonlabstrainingacademy.com/soundremedynj/

Some of us here on the Phorum have used Rich's services in the past and I'm not aware of anyone who has had a single bad experience with his work.