the X is the warmer one versus the X3. Still very good with the taut bass delivery , though at times can sound dry compared with the likes of harmonic technology. For somewhere under $150 , go for the truthlinks. ANother similar cable should be the acoustic zen's w . Do not go back to blue heaven, it will sound "thin" in the lower end and is not as emphatic in midrange delivery as the emerald Xs. I am taking a comparative analysis for cables under the $150. If you can go any higher to $200, look for the likes of maple audio ambiance, JPS ultra's and the lower model of the RSA Poiema's, mse2.