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Calling Vandersteen Subwoofer Users

I have a pair of 2Wqs that I absolutely love. There is a small amount of low frequency hum in my system, though. When I plugged in my components to a PS Audio Quintet, the hum was vastly reduced. So I was thinking that I should plug my 2Wqs into something similar. I think that, since the subs are connected to my amp, that power filtering for them might reduce the hum in my system even more. Can I plug the pair of 2Wqs into one PS Audio Duet without compromising performance? All replies appreciated.
bondmanp

Showing 7 responses by audioconnection

audioconnection
1,271 posts
 
AVR? 2WQs
what brand? and do you have Pre amp out and main In?
Bhaaf good advise disconnect the CATV as well
Jr
audioconnection
1,271 posts
 
Make sure the whole system is on the Same Phase leg
if this is hard to understand
Just take one power strip plug it in to one ac outlet and plus the (( whole system Everything)) into the strip to see if the hum is gone. If you have Cable TV in the system indirectly connected then disconnect the Cable TV at the wall and let us know what happens.
Johnnyr
audioconnection
1,271 posts
 
try this temporarily to see if the hum goes away
then we can get it sorted
Best Johnnyr
audioconnection
1,271 posts
 
Howd ya make out with the power strip with the whole system?
and Dont break off any grounds..
audioconnection
1,271 posts
 
Ig316b
Did you try all of the above?
I will assume yes
The Grado unshielded cartriges can hum in a Rega table
more so when cart is over the moter.
You can also try a ground wire from your pre amp to the 2WQs ground post
best johnnyr
audioconnection
1,271 posts
 
Greetings Bonmapp
you dont need to borrow a duet
just plug everything into even a cheap hedgeclipper extension cord with a few extra outlets to be on the same phase leg.......... Try a basic ground wire from pre amp chassis ground to Subs ground lug
Ig316b are you sure you havent been ordering from web jockies? sorry to be the messenger again
Grados and VPIs also hum together.
Best Johnnyr

audioconnection
1,271 posts
 
OK
This is starting to make sense
First try unpluging any inputs into the 2WQs and see if you have hum.
If the hum is gone without anything pluged into the subs you have a ground loop in the system
Passive pre amps can have a high output imp this could be the source
you can try to ground the shell of the passive pre amp to the subs ground lug with a simple ground wire
Please let me know how you made out.
Cheers Johnnyr
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