John Curl's Blowtorch preamplifier part III

[Evenharmonics]

The retailers go out of business but the consumer is to blame for only buying the lowest cost.... comparing prices. Instead of comparing performance, reliability, quality, etc.

If low cost amp for example, sounds indistinguishable from expensive amp without peeking, then what is consumer losing really?

 

[john curl]

That just shows that blind testing is bogus.

 

[Evenharmonics]

What about listening test with peeking?

 

[31697B]

That just shows that blind testing is bogus.

🙂 😎
-RNM

If low cost amp for example, sounds indistinguishable from expensive amp without peeking, then what is consumer losing really?

Bogus argument. 🙁
-RNM

 

[Chris Hornbeck]

Home audio systems, including those tied into an outdoor cable/antenna/whatever requiring safety Earthing before entering the building, don't really need anything special to control safety ground interference loops. Everybody plugs into the same AC power strip, making all their safety ground loops local and negligibly small. The shield of the cable/antenna/whatever is also connected to the power strip's safety ground. Small local loop and can be reasonably lossless for signal.

All good fortune,
Chris

 

[scottjoplin]

That just shows that blind testing is bogus.

At least that only contains one negative instead of four 🙄

 

[31697B]

Last version of Monster HTPS-7000 with bal/unbal transformer switch and GFI outlets.

Grounding and surge for CATV coax and telephone also shown (as per Chris H. comments).



THx-RNMarsh

 

[indra1]

What about listening test with peeking?

Bob Carver successfully did indistinguishable enough a couple of times.

 

[TNT]

Most forms of isolation aren't.

Kind of turn me on 😉

//

 

[scottjoplin]

YouTube

 

[gpauk]

Well that takes me back. I remember a Hawkwind gig in Dunstable, looong time ago, where at the end there was a guy totally zonked out asleep with his head in one of the bass bins! The roadies used to come round before the band came on handing out joss sticks!

 

[Evenharmonics]

Bogus argument. 🙁

Only to those who sell expensive audio electronics.

 

[31697B]

Only to those who sell expensive audio electronics.

You wish


-RNM

 

[Evenharmonics]

You wish

Not a wish but an observed pattern. However, you wish otherwise.

 

[31697B]

YouTube

🙂 😎

Nice


-RNM

 

[john curl]

Evenharmonics is being 'Sophomoric' again. Let's move on.

 

[Evenharmonics]

Audio business posters are making shill posts again.

 

[hhoyt]

...I note that HDMI to single mode converter pairs start at around $140. Wrong point in the chain for many of us, but might be of interest for those with home theatre rigs.

I had a lightning event which started at my TV, followed both HDMI and ethernet cables into my house networks and wiped out a metric $#!tton of stuff. My TV is now isolated via both optical HDMI:
https://www.amazon.com/AV-Access-Fiber-Extender-4K60Hz/dp/B073QLRJDR/ref=sr_1_3?keywords=fiber+hdmi+extender&qid=1570309994&sr=8-3
and optical Ethernet:
Fiber to Ethernet Media Converter | FS Fiberstore

I rest a tiny bit easier...

Howie

YouTube

Funny but great reference! I wonder if Reich was an audiophile? Anyway such a great band...we almost got Nik Turner's Space Ritual here for ProgDay...but apparently US Customs frown on admitting people with drug raps...

Cheers!
Howie

 

[billshurv]

I rest a tiny bit easier...

Howie

But does it improve the sound ...

 

[scott wurcer]

Audio business posters are making shill posts again.

What else is new, back to sleep.

YouTube