A bell is two or more sine waves combined in a ring modulator, usually modulating a high frequency with a low. Even simple addition of only two will give a good bell sound. The CA3080 amp (and others) can be used as an RM mixer for two sine waves from DACs. An ISD sound recorder would be OK, but the HF response of these is not good. Might just do for a big bell but not anything tinkly. Jinx