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Rogue 88 problems

I bought an used Rogue 88(not magnum). I met couple of problems, hope somebody could help me out.
1. The fan gives rather big noise. My listening room is small (13X12), and it's really annoying. The seller told me the amp is about a year old. Is it about time to change the fan?
2. I hear sparks from the speaker in the first 20 mins when I turn 88 on. What could be the cause of this?
3. This one is not really a problem. When I switch from UL to triode, the volume of sound dosen't change. I am expecting the sound to go down, because the output is half of UL.

Thanks in advance.
pren
precbsed
49 posts
 
Scottht makes a good point. Cleaning the tube sockets did not eliminate the arcing right away but it did stop sometime thereafter so that may have had nothing to do with the problem. After reading Scottht's post however it did occur to me that at the time of the arcing I was using a fairly high-end power cord that was somewhat inflexible and didn't seem to connect as securely as the stock cord. I believe it may have been after going back to stock power cord that I no longer noticed the arcing.
marakanetz's avatar
marakanetz
5,473 posts
 
My information comes from not once heard complains about performance(not meaning a sound) of Rogue amps and preamps. I've never looked inside these units but I can assume that they're using high bias circuitry that makes a tube life short so freequent retubing may be neccessary.

I happen to see that in listening room with magnum M120 having a same described hiss and noise.

I guess that some models are built good and some of them aren't.

I'd perform overall look onto the solder joints but after one year it realy shouldn't be an issue in any electronic device.
finfinder
73 posts
 
The performance, reliability and responsiveness of Rogue Audio is well documented in this and other forums across the internet. Let the reputation they've earned speak for them.

The internet is a big place and bad news travels fast. If their were reliability issues , you would have heard of them by now.

I've never had reliability issues with my Rogue stuff and I've always had emails answered promptly when I asked questions. Many companies do not treat their customer like this and we have to give fair praise to the few that do.

Email Rogue.
pren OP
3 posts
 
Thank you all guys. Scottht and Precbsed, you are right about the power cord. I'd found the original dosen't connect securely, but didn't realize that gives the arc. I changed the power cord, no problem now. Also, Scottht, besides the characteristic of sound, did you observe volume change when you shift from triode to UL?
natnic
33 posts
 
Why make comments thaat are not true. I ran a Rogue 88 for over a year with the fAN DISCONECTED.
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