Thank you All for your responses. The information I've got from you is very important for me and is very useful. As I can see there is not much difference (if there is any) in regular and expensive cables. And I will stay with my 14 Gauge Home Depot cables.
But what about Subwoofer cable? It shouldn't be more thicker than the front and surround ones? And what is the best setup: If I have the subs far from my components (10-12 feet far) is it better to leave the SA-3 Amp on the component rack and hook it up to the receiver with say 3 Feet cable, then run the 12 or 14 gauge cables from that Amp to the subs for about 10-12 feet, or the other way bring the Amp closer to the subs having that 12 or 14 gauge speaker cables connected from amp to sub for about 2 feet but run the connection cable 10-12 feet back to the main receiver? Which cable is losing more signal the RCA digital 75 Ohm one which runs from the receiver to the amp or the regular 12-14 gauge ones that connecting the amp to the subs?
Right now I can hear sometimes distorted bass from my subs when the volume gows up and they start making annoying sound like BRRR-BRRR-BRRR... When the volume of the receiver is low, I can get clean and tight bass. What is causing this? Not he wrong Amp>Receiver connecion, or AMP>Subs cables? Or the wrong location of subs? Currently I stock both subs on top of each other. Should I separate them far from each other? One more thing: The subs even at lowe volume are late responsive, like there is a delay between actual real time bass which I see on the TV and the sound come out from subs. All this problems of the Bass are not an issue of cables and connection wires? Or may be proper placements of saubs?
Once again, I deeply Appreciate to everyone for helping me and spending your valuable time to write here.
But what about Subwoofer cable? It shouldn't be more thicker than the front and surround ones? And what is the best setup: If I have the subs far from my components (10-12 feet far) is it better to leave the SA-3 Amp on the component rack and hook it up to the receiver with say 3 Feet cable, then run the 12 or 14 gauge cables from that Amp to the subs for about 10-12 feet, or the other way bring the Amp closer to the subs having that 12 or 14 gauge speaker cables connected from amp to sub for about 2 feet but run the connection cable 10-12 feet back to the main receiver? Which cable is losing more signal the RCA digital 75 Ohm one which runs from the receiver to the amp or the regular 12-14 gauge ones that connecting the amp to the subs?
Right now I can hear sometimes distorted bass from my subs when the volume gows up and they start making annoying sound like BRRR-BRRR-BRRR... When the volume of the receiver is low, I can get clean and tight bass. What is causing this? Not he wrong Amp>Receiver connecion, or AMP>Subs cables? Or the wrong location of subs? Currently I stock both subs on top of each other. Should I separate them far from each other? One more thing: The subs even at lowe volume are late responsive, like there is a delay between actual real time bass which I see on the TV and the sound come out from subs. All this problems of the Bass are not an issue of cables and connection wires? Or may be proper placements of saubs?
Once again, I deeply Appreciate to everyone for helping me and spending your valuable time to write here.