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Major Problems with Aleph Ono

I have an Aleph Ono on loan I am considering purchasing. The rest of my set up consists of a Clearaudio Virt. Wood MM, VPI MkIII/PT 6, ARC LS15, ARC VT 200, Vandy 3A Sig's.

The Ono sounds great, much better than the Creek unit I currently use, the problem is, when I turn the volume up to even moderate levels, the woofers in the speakers ossilate and the tonearm starts hopping off the record! I have the jumpers in for the lowest output (60 db) and am using the recommended settings for the cartridge.

I have tried different loading, resistance, cables, balanced and single-ended outputs, I even borrowed a friends pre-amp and took the LS 15 out. Nothing has changed.

Obviously this is not good. I have talked to Pass (not the Ono), the guy selling it (as baffled as I), and someone I consider an experience Vinylphile who told me to move on and buy a different stage (maybe a PH3).

My question is this. Has anyone had the problem and does anyone know how to fix it?
jmcdermott
mwilson
430 posts
 
You're getting subsonic feedback. There is an archived thread with some informative and fun commentary on the subject:

Learn > Forums > Analog > 1033049624 or
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1033049624&openfrom&11&4#11

Best of luck in defeating the wubba-wubbas.
Mike
Ag insider logo xs@2x
ivanj
35 posts
 
This precisely why I have my TT and Ono in a separate room from my music system. I run a balanced line to the X1 in the music room. Slightly inconvenient, but enjoyable.
bigtee
803 posts
 
Put the dust cover down and see if the feedback goes away. Then you will know for sure that it is feedback. If it does go away, you will have to mount the turntable in a different location. It can be air borne or vibration borne(through the floor) Isolation is the only answer. It's not your electronics.
thorman
1,262 posts
 
I had similar problems way back and ended up moving the t/table further away and settled on mounting it on a turntable wall shelf. This got rid of the floor vibrations.
also try using the proper amount ( by weight ) of "Vibrapods" which work very well for this type of preoblem......Good luck
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