I could as I've heard the Carbon 7's quite a few times ... but you probably wouldn't be interested in my thoughts since I'm a bit biased 
On the contrary,while a bland X is better than Y won't be of much value, the fact that you have a keen ear and an analytical mind allows you to point out to people WHERE to look for the differences that exist between X and Y.
Example, one time in the 1970s a customer was considering buying either the feature laden Radford
http://www.audiocostruzioni.com/r_s/pre/radford-zd22-zd50/radford%20zd22.jpg pre-amp versus the very spartan Quintessance
http://www.blackswampaudio.com/Inventory/Full_Description.php?recordID=1261 (no relation to current brand) which was 20% less expensive. The Radford was the better sounding unit, but the customer needs to be able to notice that. So I asked him to choose a record, he picked a Ry Cooder LP. Great choice. We listen to one cut on both pre-amps. I noticed that the greatest sonic difference was in the mandolin, so being quite confident I asked him, "Did you notice the difference in the mandolin?". I thought that was a good way for him to appreciate the difference without me being prejudicial. Unfortunately he replied, "What's a mandolin?".........
Ken