Discovery Cables Plus Four vs Essence: Is there an audible difference?

I recently added a Plus 4 phono cable and I have some 12" lengths of Plus 4 inside my power amps connecting the input jacks to the first tube.  I have been very impressed with the sound of Plus 4 particularly the smooth, even tonal balance.  It has a very neutral sound.  It is hard to compare phono cables since I use a continuous run from cartridge clips to RCA plugs (the Discovery cable has a joint where the Plus 4 is connected to the tonearm wiring).  But in my power amps I have tried all sorts of connecting wires including Duelund silver ribbon and Neotech silver, and I like Plus 4 the best.

In years past I had an Essence interconnect and I have to say I was not as pleased with it.  It always seemed to add too much warmth and it was a little soft on leading edge transients.  I have never compared the Essence and Plus 4 head to head so I can't say for sure but I think the Plus 4 may actually have a more neutral tonal balance.

I've had Essence and Essential for several years now. It replaced Signature IC and 123 Speaker Cable. 
The upgrade was great but expensive as I bought new from Joe. 
Im driving a Simaudio Amp into Focal Sopra#2 speakers. 
The combination sounds sweet. 
I'm using balanced ICs now but the RCA sounded great too. 

Owned both and replaced +4 with Essence so I think there is a worthwhile difference, but it's not a large difference.  It's mostly at the frequency extremes -- deeper, tighter and smoother.  My systems were all fully balanced.

Definitely a worthwhile difference. I've been using Essence and Essential for years. I also have the Plus Four that I now use for home theater. The Essence and Essential are great values...