Should invest some money on speakers cables. Best bet is Monster Cable, maybe $200 300 HKD a pair. 512 strands cooper wire (orig model). They have extra thick ones, 1024 strands, but not necessary. Good specs for the money. If you been using cheap嘢, you will notice the sound improvements.
Additional info. This is done by Nelson Pass of Pass Labs (Founder of Pass Labs, 1991. Hi End gear manufacture) of some speakers wire's measurements. Monster Cable is best for your bucks where Fulton is best on the average. Fulton cost over 10X of monster cable and low resistance was the key. Sliver, gold..etc. don't matter if the measurements are low...sound difference is very minimal. No reason why pay 幾十萬 or even 幾萬 for dam cables.. because of advertisements and so call influenced hi fi reviewers' work.