Agree with Zd542
The disappointment from lack of system synergy is likely much more than just a quick cable swap.
The Marantz as your source would be my first suggestion.
The JMRs and YBA are very good gear respectively that I have heard personally. A step-up to a high-end CDP or a high-end DAC to audition and re-evaluate would be my first step.
YBA recommends their own cables and JMR work well with Crimson. These are important but only as the next incremental step after assessing a need for step-up in source at the front -end.
The disappointment from lack of system synergy is likely much more than just a quick cable swap.
The Marantz as your source would be my first suggestion.
The JMRs and YBA are very good gear respectively that I have heard personally. A step-up to a high-end CDP or a high-end DAC to audition and re-evaluate would be my first step.
YBA recommends their own cables and JMR work well with Crimson. These are important but only as the next incremental step after assessing a need for step-up in source at the front -end.