Hi, I have an audio system at my apartment and whenever its in working mode and any other power appliances like lamp, fan, are switched ON, I used to hear a short bump noise. Yesterday I heared the same noise when another main switch which is outside my apartment ie in the parking area was pulled ON. Is this related to improper grounding in the apartment or the audio system's susceptibility to noise? and how is it possible for the second case to happen, is it so sensitive. regards Hariharan R Voice: +91-80-22171435 FAX: +91-80-23333415 Mail: hariharan@xxxxxxxxxxx <mailto:hariharan@xxxxxxxxxxx> *******Confidentiality Statement******* The information contained in this message is confidential and may be legally privileged. The message is intended solely for the addressee(s). If you are not the intended recipient, please contact the sender by return e-mail, delete and destroy all copies of the original message. If you are not the intended recipient, you are hereby notified that any use, dissemination, or reproduction is strictly prohibited and may be unlawful. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu