If you know which aspects of sound reproduction are most important to you and/or know areas in your system you'd like to improve, read some reviews to see which cables seem to excel in those areas. When you find one or two that seem interesting, just buy some used cables and give them a shot. If not a big improvement over your BJC you can likely sell them at little or no loss and move on. Some usual suspects would be Acoustic Zen, Audioquest, Synergistic, etc.
Another route would be to try those manufacturers who sell direct and offer in-home trial periods. Morrow, Triode Wire Labs, Grover Huffman, etc.
Hope this helps and best of luck.
Another route would be to try those manufacturers who sell direct and offer in-home trial periods. Morrow, Triode Wire Labs, Grover Huffman, etc.
Hope this helps and best of luck.