Hooper; are you describing an 'electrical buzz' (a kind of hum) or a 'vibration buzz' (something loose that rattles)?
i assume that you have turned off the subwoofer and the noise went away to isolate the noise to a subwoffer issue. btw, i get zero transformer noise unless i actually put my ear on the back plate. i'm sitting about 10 feet away (plus the depth of the speaker)....my room is dead quiet.
one of my VR9's did have that transformer nut you mention not fully torqued down; which i was not able to diagnose until i had resolved some other issues. at first i thought it may have been a bad subwoofer driver. i finally was able to play a 25hz tone continually and then push on the amplifier cover plate and the noise disappeared. so i disassembled the amp module, torqued down the bolt, and all has been perfect since.....and these speakers are regularly challenged with very low frequency music.
i would see if while playing a test tone that causes the noise, you push hard on that amp cover plate (which the transformer rests against) to see the effect. you may not have torqued down that nut a sufficient amount.
as you already know; it is quite easy to do this fix yourself.
one could criticize VSA but after seeing how much i needed to torque down the bolt to stop the vibration; it is understandable that it likely seemed to be ok at the factory. mine were fine for the first month or so.....and i was playing torture tracks 24/7 for breakin......in fact; i may have caused my problem by getting carried away with the break-in. i would never listen at anywhere like the volume i used at breakin for more than a brief moment.
Hooper's VR9's were within the first three or four sets built and mine were about the fifth set built.....so the feedback on these speakers was limited at that point.
i assume that you have turned off the subwoofer and the noise went away to isolate the noise to a subwoffer issue. btw, i get zero transformer noise unless i actually put my ear on the back plate. i'm sitting about 10 feet away (plus the depth of the speaker)....my room is dead quiet.
one of my VR9's did have that transformer nut you mention not fully torqued down; which i was not able to diagnose until i had resolved some other issues. at first i thought it may have been a bad subwoofer driver. i finally was able to play a 25hz tone continually and then push on the amplifier cover plate and the noise disappeared. so i disassembled the amp module, torqued down the bolt, and all has been perfect since.....and these speakers are regularly challenged with very low frequency music.
i would see if while playing a test tone that causes the noise, you push hard on that amp cover plate (which the transformer rests against) to see the effect. you may not have torqued down that nut a sufficient amount.
as you already know; it is quite easy to do this fix yourself.
one could criticize VSA but after seeing how much i needed to torque down the bolt to stop the vibration; it is understandable that it likely seemed to be ok at the factory. mine were fine for the first month or so.....and i was playing torture tracks 24/7 for breakin......in fact; i may have caused my problem by getting carried away with the break-in. i would never listen at anywhere like the volume i used at breakin for more than a brief moment.
Hooper's VR9's were within the first three or four sets built and mine were about the fifth set built.....so the feedback on these speakers was limited at that point.