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Power Cables on Subwoofers do Matter

I read an opinion somewhere on this site that swapping the power cable on a subwoofer has a minimal effect and may not be worth it. I have a very different opinion. Power cables can completely transform a subwoofer’s performance.

I have an SVS SB-2000 powered sub and my preferred power cable, a Zavfino Fina, has made it sound like a different animal altogether. It has much more punch, freq response linearity, and liveliness. The manufacturer included power cable makes it sound slow, bloated, and almost out of tune just because it’s sloppy, in comparison. The only drawback to the Fina is that slam below 30-40 hz is a little recessed but it’s not major and is still clearly my choice. I also compared five other aftermarket power cables from other components in my system and they ALL had a different effect on the sub. For testing, I used various crossover points and most of the testing was with the loudspeakers off in order to isolate the sub for critical listening.

Cheers!

128x128gladmo
oldhvymec
5,101 posts
 

This is a servo plate amp, LOOK at what you really need to do it right along with complete speaker decoupling from the entire room. A Turntable delight right down to a flat as a pancake 20hz or lower sub responce. NO woofer pumping AT ALL ever..

Plug a crap PC into this amp, you'll hear it.. 

Normaly when manufactures make a statement like couple the sub to the floor or power cables make no difference, that type of sub manufacture/owner likes to FEEL the sub through their bottoms, feet, and that type of thing.. They kind of loose the plot when it comes to TOTAL distortion and distructive harmonics and effects on all the other gear, not just "their" sub..

It's very districtive to super clean MB, mids and high drivers too. Vibration is vibration.. It dosn't mater what it's rattling. It also delivers a delayed responce way out of time with the actual drivers and the rooms reflected responce.

I like a ground UP approch other than TAME an issue after the fact. Plates falling off the walls, kitchen cabinets rattling.. I know glue them to the wall. ALL FIXED. :-)

Regards

lanx0003
672 posts
 

So i see the price of the power cables that were found having significant impact could range from $200 ish all the way to $2000.  Could someone with more technical background / expertise provide justifications on the price difference in terms of their physical properties such as conductivity, impedance, insulation, etc. AND, most importantly, how these properties affect the sound.  The venders of these "high end" cable seems hardly publishing those technical data.  

nlitworld
57 posts
 

@gladmo which power cables did you try before settling on the Zavfino?

bigkidz
3,322 posts
 

As always, each amplifier is different and obviously may not produce the same results as yours.  Upgraded the capacitors and resistors would probably make a bigger improvement then the power cable.

 

Happy Listening

pr
50 posts
 

Furutech 3ts762 (max power) with my svs sb-4000, really better than my gigawatt evo mk3, o2a quintessence, nordost red dawn etc...

Bass very fast with my focal electra 907be speakers, this is the best combination!

All others mentioned doesn't keep the bass speed of my speakers!

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