Planned test procedure

Posted by Terry P on September 1, 2016 at 11:10:02

In Reply to: Speaker (?) problem posted by Terry P on August 31, 2016 at 18:44:36:

Thanks to everyone for your suggestions! There are some reasons why apparently simple tasks, such as swap speakers or testing cable continuity are listed last. The speakers are 60+ pound beasts with a high WAF really nice cabinet and are on hardwood floors and I'm an old guy so I don't want to swap them if I don't need to. The cable is 26 feet long under a room sized area rug so it means moving furniture, rolling the rug up and pulling the cable ends together so my multi-meter can reach both ends to do a continuity test. So that step is last as well.

Here's my planned test procedure. Comments and advice are much appreciated!

Here's my planned test procedure:

Prerequisite - Ensure complete isolation of speaker HF and LF sections by doing a resistance test between the speaker cable binding posts LF pos to HF pos, and LF neg to HF neg. If not infinite resistance, then skip steps 3 and 4.

Steps:
1- swap L and R speaker cables at the amp. See if problem moves. If it does it's cable or amp related.
2- put cables back into original config and swap pos and neg at amp for L speaker only. If improvement, that cable is entirely mis-wired or the speaker is entirely mis-wired. Problem solved.
3- if no improvement, swap pos and neg for high connections at the L speaker only. If improvement, either the cable is mis-wired on the speaker biwire high end side or the speaker itself is mis-wired on the high end driver side. Problem solved.
4- if no improvement, return cables to original config and do step 3 for the low end bi-wire connection at the L speaker only. If improvement now, same diagnosis as step 3 only this time it's the low end side of the speaker cable or the speaker itself that is mis-wired.
5- if no improvement, swap speakers and do a continuity check of the speaker cable.
6- if no improvement, and cable continuity is okay, then the problem is due to poor room acoustics and I'm SOL.

EDIT: Add test prerequisite.

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - Speaker (?) problem - Terry P 18:44:36 08/31/16 (21)

This is a good excuse to invest in some basic measuring tools (nt) - Dave_K 12:39:49 09/2/16 (0)

Planned test procedure - Terry P 09/1/1611:10:02 09/1/16 (0)

possibilities - Awe-d-o-file 09:34:52 09/1/16 (2)

RE: possibilities - Terry P 10:29:19 09/1/16 (1)

RE: possibilities - Awe-d-o-file 10:54:13 09/1/16 (0)

RE: Speaker (?) problem - cloudwalker 20:32:16 08/31/16 (15)

RE: Speaker (?) problem - Terry P 10:08:35 09/1/16 (2)

RE: Speaker (?) problem - BCR 10:40:16 09/1/16 (1)

RE: Speaker (?) problem - Terry P 11:02:05 09/1/16 (0)

I'm with you - E-Stat 06:01:10 09/1/16 (11)

RE: I'm with you - Terry P 10:35:25 09/1/16 (0)

If, after switching speakers the problem persists, then... - Mr. Dick Hertz 08:27:00 09/1/16 (9)

RE: If, after switching speakers the problem persists, then... - Terry P 10:43:33 09/1/16 (8)

RE: If, after switching speakers the problem persists, then... - Awe-d-o-file 11:05:32 09/1/16 (0)

RE: If, after switching speakers the problem persists, then... - BCR 10:54:12 09/1/16 (6)

RE: If, after switching speakers the problem persists, then... - Awe-d-o-file 10:58:46 09/1/16 (5)

RE: If, after switching speakers the problem persists, then... - Terry P 11:20:15 09/1/16 (4)

RE: If, after switching speakers the problem persists, then... - BCR 11:42:20 09/1/16 (3)

RE: If, after switching speakers the problem persists, then... - Terry P 11:57:14 09/1/16 (2)

RE: If, after switching speakers the problem persists, then... - reuben 06:17:09 09/2/16 (0)

RE: If, after switching speakers the problem persists, then... - Awe-d-o-file 14:55:27 09/1/16 (0)

Follow Ups

Planned test procedure - Terry P 09/1/1611:10:02 09/1/16 (0)

Planned test procedure

Post a Message!