thanks for the info Mark. i have been in touch with Richard. i
will be receiving 3 filters in about 3-4 weeks. he found me
the XTAL2.4. and i ordered a few others. haven't had a chance to
peek in side yet. like my new R8B, the 7030+ is my retirement
gifts to myself. i'm sure i would not spend this kind of money
after i retire. looking forward to many years use...
Drifter...

by the way. AOR UK and Japan have the best service i have ever used...