What Power Cords for Rel S510 Subs?

For that frequency, power cables do not matter much.

For higher frequencies though, the lower inductance, the better.  Call the manufacturer before purchasing. They measure that. They will know what you are getting at.  But nobody publishes it. 

Hello,

I thought the same thing about power cords on subs. I have only listened to different pc on my JL Audio F110 subs. I had nice 14 GA Puritan Classic Plus  cables but on each of the two subs. It did make an improvement over stock. It could be the gauge over the stock 16 ga wire. I bought some Straightwire Black Thunder pc for my  DAC and Preamp. I put them on the Subs to break them in. I noticed an immediate difference in the bass. It was more powerful than before. Also, It was cleaner and faster or more detailed especially keeping up with my front speakers. These are 10 ga equivalent wire from six strands. I think the strands make a difference over solid core. All that mattered to me was it sounded better. Lets say 25% better than before. I did turn the gain down to match the room again. Even after turning them down it sounds like the low bass is enveloped in the room. I cannot tell it’s coming from the subs even at high levels. After that I played around with other things on the subs like putting them on IKEA cutting boards which made things even better for $20 a sub. I left the Straightwire Black Thunder on the subs too good to take off. 

@nyev From REL

"In our experience your REL will perform best when using the stock power cord that is supplied with it, though you are welcome to experiment with aftermarket power cords. As long as the replacement one at minimum matches the spec of the stock cord (18 AWG wire, three prong including a ground prong) then it will not damage the subwoofer, and from there any potential performance improvements will be up to your ears to determine."

@ronboco , I tested many different speaker cables and power cords, mid to top end, from Audioquest, Shunyata, Transparent, and Nordost.  Nothing came close to the Nordost Valhalla 2’s for the speaker cables.  Didn’t like the Nordost power cords, but cords from other brands were all good, with varying presentation styles.

@1971gto455ho lol, glad you are having fun…

@retiredfarmer

My dear friend are you jealous or just ill-informed ? I shall help you, my GTO is one of 79 made it is mechanically modified all original parts retained. It is a convertible with no roll cage so quarter-mile time is a guess. I do enjoy 700+HP and it drives with modern comfort. Don’t know where you are financially you may or may not be able to afford it should I decide to sell it. Let’s stay friends and stick to the Audio perhaps there would be conversation worth listening to. I do have other more conventional transportation High speed etc. should you be interested . Thank you for your continued interest.

Cheers