Another option is to insert an inexpensive passive attenuator between the phono stage and the preamp, such as the balanced version of the Rothwell 10db attenuators.
I'd be very surprised if the input stage of any reasonably designed line-level preamp would be overloaded by the output of a nominally 0.6mv cartridge amplified by 40db (corresponding to the IO's minimum gain setting of 50db, with a 10db attenuator between phono stage and preamp).
The Calypso, however, has a relatively high gain, which could still result in your having to use its volume control at undesirably low settings. In that case, another passive attenuator could be inserted between preamp and power amp.
Regards,
-- Al
I'd be very surprised if the input stage of any reasonably designed line-level preamp would be overloaded by the output of a nominally 0.6mv cartridge amplified by 40db (corresponding to the IO's minimum gain setting of 50db, with a 10db attenuator between phono stage and preamp).
The Calypso, however, has a relatively high gain, which could still result in your having to use its volume control at undesirably low settings. In that case, another passive attenuator could be inserted between preamp and power amp.
Regards,
-- Al