No worries, dude. As you can see, the internal construction and materials used are different with each cable, and therefore explain the differences in cost

Judging by the 'sound-per-pound value' I've heard so far, with the entry-level 428 Phono, I'd expect the SPD-4 (for example, at £440), sonically, to perform far in excess of its cost, which is why Andy has already commented that it's even better than his usual Nordost tonearm cable, costing £1229!

Indeed, the 428 Phono (at £124) sounds as good as many other tonearm cables I've heard at twice the price and more, which augurs well in terms of what the 423.5 Phono will be capable of, and thus so far, ably demonstrates the 'giant-killing' potential of the cables that Yannis produces.

Marco.