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Audible Illusions L3A on/off switch...

68.35.202.52
Posted on February 11, 2016 at 12:13:22
rwiley
Audiophile

Posts: 1050
Location: Southeast
Joined: February 20, 2001
 As a long term owner of several versions of Audible Illusions preamps, I'm glad to note (see review) that they've decided to put an on/off switch on the L3A (and I assume the M3A as well?). I think this is a good move and will help owners extend tube life. In spite of claims that they've seen tubes last 20 years, that certainly hasn't been my experience with my Audible preamps. And leaving the heaters fully powered 24/7/365 has never made much sense to me.

I've thought seriously of adding an on/off power switch but have hesitated thinking it might devalue the unit. No longer.

 

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RE: Audible Illusions L3A on/off switch..., posted on February 11, 2016 at 15:10:55
Awe-d-o-file
Dealer

Posts: 21037
Location: 50 miles west of DC
Joined: January 10, 2004
 Finally. Besides the tubes the heat also serves to dry out caps.

ET
ET

"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936

 

I plug my Mod 3 PS into a switched AC outlet. Serves the same purpose. /nt\, posted on February 11, 2016 at 18:07:49
Opus 33 1/3
Audiophile

Posts: 4184
Location: D.C. Area
Joined: February 19, 2014




Opus 33 1/3

 

It is my understanding (says so in the article as well), posted on February 14, 2016 at 15:41:21
kavakidd
Audiophile

Posts: 20316
Location: Upstate NY
Joined: April 15, 2004
 That the heaters are not full on but much reduced when in standby. I have been running a Modulus 3 and then a 3a for over 20-years. Never had a tube failure. I DO replace them every so often - probably more because I am a bit anal that due to actual need.

Only ever turned off to change tubes......
"Man is the only animal that blushes - or needs to" Mark Twain

 

RE: It is my understanding (says so in the article as well), posted on February 14, 2016 at 16:29:30
rwiley
Audiophile

Posts: 1050
Location: Southeast
Joined: February 20, 2001
 The heaters are fully powered in standby (plate voltage reduced). The on/off switch will permit them to be easily turned off.

 

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