Rega DAC: Cable suggestions

just got a Rega dac. I am pretty happy with the dac but it is a little bassy. From reseach some people have found this dac bassy while others have not. Depends on system.

I originally had a best buy digital cord which was very bad with bass conrol. I then purchased a cheap Blue Jean Cable which was much impproved.

I really need better bass control and I am looking for suggestions for for a Digital Cable, Interconnects, and power cord up grade.

I would like to keep the budget for each cord from $100-150 new or used. I know not much $$$ but the primary goal is bass control or improved bass. The soundstage is good of course if I could find a cable/cords that could help the bass and expand the soundstage it would be a plus.

also if I need to exceed my buget I will and just buy one cable at a time.

System: Marantz 5004 CDP -transport to Rega Dac- Feed into an Exposure XV Super Intergrated- Speakers are System Audio Mantra 10.

Currently using stock rega power cord, blue Jeans digital cords. Unknown interconnect given to me by friend.

I also really want to avoid bright cables or a bright sound. That is why I went with the Rega. Any direct experience with a Rega Dac would by extremely helpful.