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GCE
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Last seen: 2 months 6 days ago
Joined: 31/01/2011 - 15:32
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Sub B & W 610: hummm problem

By attaching this sub to the secondary power outputs (spk Dirol of the amp I hear a great continuous "ummm", I think at 50 Hz, when the amp is switched off or when amp is on but with the spk B outputs turned off , to hear only spk A; hearing the music, with spk A and B togheter, all right; connecting sub with low-level input (signal) it's ok: is it normal, what can I do? Thank you!

Marantz PM 6004 amp / B&W 603 S2 / B&W 610 sub / Philips CD 624 /  Dual CS 506 gira / Shure M 97XE TT / Panasonic PX 70 EA plasma /  FLORENCE, IT 
GCE
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Last seen: 2 months 6 days ago
Joined: 31/01/2011 - 15:32
Posts: 206
RE: Sub B & W 610: hummm problem

No idea to solve this problem? thanks

Marantz PM 6004 amp / B&W 603 S2 / B&W 610 sub / Philips CD 624 /  Dual CS 506 gira / Shure M 97XE TT / Panasonic PX 70 EA plasma /  FLORENCE, IT 
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