[Elecraft] K2 crystal filter upgrade

[Mike Maiorana]

I have an early K2 that has the original type crystals in both the CW and
SSB IF filters (marked with ECS 4.91-20). If I am not going to increase the
bandwidth of the SSB filter, is there any reason to replace the old
crystals with the new units from Elecraft? Will the new crystals improve
performance?

Thanks for any feedback.
Mike M.
KU4QO