Cable and amplifier matching

Last night, I decided I wanted to swap cables between my two amps, The VAC PA 35.35, which was connected with Synergistic Research Kalidescope I/C's, Synergistic Research Master Reference AC Power Coupling, and Synergistic Research Resolution Reference FX speaker cables. The Plinius SA 100 Mk III was connected with Audio Metallury AG-OC i/c, DIY 12 gauge Belden power cord, and DIY Supra Classic 6 speaker cable with rhodium Furutech locking bananas.

I determined it was actually easier to swap places with the amps, even though they both weigh in at around 80 pounds, than it was to swap out the cables. So after much grunting, the Plinius was in the bottom of the rack, and the VAC was on the amp stand between the speakers.

I first tried the VAC, which was still connected to my custom Tannoy HPD 315's. It actually sounded better I thought, than it had with the high-priced cables.

Then came the Plinius. Holy crap, I was not prepared for the improvement in the sound of this amp. I first played the 24 Karat Gold cd of "Breaking Silence", by Janis Ian. This is a great sounding cd, and I never heard it this well played before. "Ragpickers Dream", from Mark Knopfler, sounded superb as well, and last was "Everything Must Go", by Steely Dan, the multi-channel SACD. This too, sounded phenominal, better than I've ever heard.

While I haven't done much cable-swapping, and I used to be a real skeptic about the benefits of different cable designs, this at least points out to me that cable matching is very important in getting the most out of what your system is capable of. I come at this as an audiophile only, having no background in electronics. just a lifetime in the hobby, and learning things the hard way, through time and trial-and-error. I'm sure glad my curiosity led me to do this swap, it turned out to be well worth the effort of my 64 year-old body to do the grunt work. I love it when things work out.

Best regards,

Dan Thomason 

Discussion started by Dan Thomason , on 857 days ago
Dave Clark
A great post... but how is the back?
857 days ago
 
Acoustic Insight
Interesting post.

Now as a double-check try this:
1. Arrange the system so you can easily swap the cables rather than the amps.
2. Get someone else to swap the cables so you can't tell yourself which is swapped in.
3. Try and see if you can reliably tell which cable is being used with any one amp

This is the ultmate test. Please post results - we will all be very interested.

Kevin
856 days ago
 
Dan Thomason
Hi Kevin, all. I will be reluctant to swap cables out, as the reason for swapping the amps is due to the complexity of the active shielding on all of those cables mentoned. It would be a massive undertaking, requiring me to move many components, the extra power outlets and Mini-Power Couplings. It was actually much easier to just move two rather massive amps, than to go through all that. My back hurts just thinking about it. I am satisfied with the results of this exercise, and will be standing pat..

Regards to all,
Dan
856 days ago
 
Gavin Fish
This was a fun post to read Dan. Bruce Brisson has told me that the term 'Speaker Cable' is actually incorrect. According to him they really should be called 'Amplifier Cables' because it's the amplifier that is taken most into consideration when designing the cable. This is not to say that the loudspeaker is not considered at all. I don't pretend to understand most of these things, but it was interesting to me when he said it nonetheless.
850 days ago
 
Dan Thomason
Gavin, that makes a lot of sense. The amplifier sees a load that is constantly changing, not to mention the back EMF created by the drivers.
850 days ago
 
JA FANT
You are a lucjy man, Dan. I wish I could listen to those Synergistic Research cables...
769 days ago
 
Hi Fi Spicoli
I had a similar experience. I had a pair of Welborne Labs Apollo Monoblocks (high output 300B tubes) with AlphaCore Goertz Micro Purl RCA interconnects that was a great combination.
I then changed my system to a pair of Aesthetix Atlas Monoblocks (hybrid) and the the AlphaCore cables were horrible...so bad we almost sent the amps back thinking we had a defective pair.
When I changed the interconnects to a pair of Nordst Heimdal Balanced the sound improved considerably.
RCA versus Balanced...Shielding...who knows...could be a number of things...regardless...my point is that YOU MUST MATCH THE CABLES TO YOUR SYSTEM.
592 days ago
 
JA FANT
Agreed, Spicoli. It amazes me the differences involved w/ cables & cords. Yes, one must match the cable/cord(s) to one's system!
592 days ago
 
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