I agree with the Anaysis Plus Oval Nines which I now use instead of AQ Midnights on my els's. While the AQ Type 4 you currently have is a good cable for the money, you may want to consider other used AQ cables if you like the sound. I have seen Midnight, Forest and Argent at attractive prices on Audiogon.
Greatest sonic impact: cables or ICs
I have reasonable equipment (thiel and classe) and am looking at upgrading my speaker cables (20 ft audioquest type 4) and interconnects (musical concept superconnects). However, the cost can quickly get out of hand. Which has the greater impact on sound speaker cables or interconnects?