How noisy is my line? Audio Prism Noise Sniffer

@larryi  Thanks. It's interesting to me that these tools are nearly never mentioned when discussions of conditioners, etc. are flying around.

@thecarpathian Yes, I'm still very impressed and satisfied with the Ascend ELX towers. They are the equal of a bunch of other speakers I've heard -- to my tastes -- including Wilson, YG, and others. Their synergy with my Quicksilver mono 60s and Pass XA is excellent. I'm still wishing I had kept the Fritz Carbon 7's but that may be a second speaker at some point.

@mahgister 

Thanks to posters about the meter. Yes, it's crude. It's probably enough for me to get a very general impression of my various lines. The idea that I need a much more elaborate meter is based on uses I have not contemplated and are likely irrelevant.

@thecarpathian 

I got rid of the Quicksilver Pre in favor of a DIY based around the DeHavilland Ultraverve III. 6SN7 tubes are preferable to my ear.

I like the Carbon7 better than the Salks, not least because of the Be tweeter in the Salks. The Carbons have a really gentle and musical (that word!) touch. I have noticed a couple video reviews on the Carbon 7 recently.

Brief report.

Electrical Experiments using Entech Sniffer

Interesting experiment: 
1. Put noise sniffer into raw outlet usually occupied by my Audience Adept and rest of gear.
2. Positioned laptop next to meter with live zoom feed to my phone.
3. Went to nearly every single thing on the same line as that outlet and plugged and unplugged it. Watched zoom feed on from my laptop on my phone.
4. Some things had no effect on reading. Some made it noiser by 3-5 increments; some made it quieter by 3-7 increments.

Interim hypothesis: leaving those things on upstairs might make my audio background quieter. Hmmm.  But since that's not how I listen, I plugged everything back in.

Trying again, this time with everything into my strip, with the Entech in there, too. 

5. Plugged in Audience and rest of rig. Plugged sniffer into the power strip they are plugged into (which has a Venom Defender in there, too.)
6. Repeated all the pluggings and unpluggings listed above in (3.)

Result: no change made any difference at all. None.

Ultimately, my Audience Adept r2r makes a difference according to this sniffer. The Audience drops the reading by 30 points so and adding the the Venom Defender into the strip drops it another 12%.