If you're not getting a full sound with bass, I would look into upgrading your speakers rather than try to produce bass in a limited range speaker
by trying to find cables that will produce bass in a speaker that doesn't
produce that much bass. Next, once you find a full range speaker, you'll need the correct amplifier to produce the best bass response. Cables cannot produce amplification and they cannot produce bass in a limited
range speaker. Enjoy your system like it is and save your money for your
next speaker and amplifier upgrade.
by trying to find cables that will produce bass in a speaker that doesn't
produce that much bass. Next, once you find a full range speaker, you'll need the correct amplifier to produce the best bass response. Cables cannot produce amplification and they cannot produce bass in a limited
range speaker. Enjoy your system like it is and save your money for your
next speaker and amplifier upgrade.