Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Audio and Video Talk
Valves / Vacuum Tubes
Valve amps On, no Speakers connected
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support AVForums:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="MusicMan_ZA" data-source="post: 1020870" data-attributes="member: 14924"><p>Some advice please, esteemed Forum members and valve fundis:</p><p></p><p>I have read / heard numerous times that a valve amp should not be on when there are no speakers connected.</p><p>And I would not want to do that anyway.</p><p></p><p>However, I would like to know - should this happen - does it mean "while there is an input signal"</p><p>(as in something playing "into" the amp), or NO-NEVER, not even when there is nothing connected to the input?</p><p></p><p>The reason I am asking: last night I went into the lounge, at about 11pm, and saw that my two valve mono blocks were on!</p><p>No input connected, and no speakers connected.</p><p>All transformers were warm/hot (as they would be after about 4-6 hours playing).</p><p></p><p>This was completely my fault, as I unplugged everything from the amps, and switched the power off at the wall.</p><p>But I left the amps plugged into the PDU!</p><p>My cleaner vacuumed in the room early yesterday morning, and must have plugged the Hoover into the same PDU,</p><p>and switched it on at the wall. And left it on.</p><p></p><p>I reconnected my TT and pre-amp this morning, and played music using the valve mono blocks for about 2 hours.</p><p>Everything seems ok, and everything sounds right, so I am hoping there is no issue - just a few extra hours of valve use.</p><p></p><p>Is this correct, based on the info provided, or should I be worried?</p><p>Should I check anything else?</p><p></p><p>Thanks,</p><p>Johan</p></blockquote><p></p>
[QUOTE="MusicMan_ZA, post: 1020870, member: 14924"] Some advice please, esteemed Forum members and valve fundis: I have read / heard numerous times that a valve amp should not be on when there are no speakers connected. And I would not want to do that anyway. However, I would like to know - should this happen - does it mean "while there is an input signal" (as in something playing "into" the amp), or NO-NEVER, not even when there is nothing connected to the input? The reason I am asking: last night I went into the lounge, at about 11pm, and saw that my two valve mono blocks were on! No input connected, and no speakers connected. All transformers were warm/hot (as they would be after about 4-6 hours playing). This was completely my fault, as I unplugged everything from the amps, and switched the power off at the wall. But I left the amps plugged into the PDU! My cleaner vacuumed in the room early yesterday morning, and must have plugged the Hoover into the same PDU, and switched it on at the wall. And left it on. I reconnected my TT and pre-amp this morning, and played music using the valve mono blocks for about 2 hours. Everything seems ok, and everything sounds right, so I am hoping there is no issue - just a few extra hours of valve use. Is this correct, based on the info provided, or should I be worried? Should I check anything else? Thanks, Johan [/QUOTE]
Insert quotes…
Verification
Post reply
Audio and Video Talk
Valves / Vacuum Tubes
Valve amps On, no Speakers connected
Top