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#10371 - 05/15/07 04:21 AM Hum/Ground Loop Issues
AvFan Offline
Desperado

Registered: 09/12/05
Posts: 619
Loc: El Cajon, California
I suggest creating a separate saloon, a one-stop-shop, to collect questions and solutions regarding hum and ground loop problems. This would allow those with a hum issue to research how others have dealt with the problem and share their own solutions.

These problems crop up fairly often and range from easy to very difficult to diagnose. We've discussed in this forum everything from cable TV induced ground loops to the oddities of having a wind powered generator as part of your electrical system! Just my 2 cents, but I think the collective experience of the Gunslingers on this topic in a single location would help a lot of folks.
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AvFan
Outlaw 976 | ATI 2005 | M&K 850s Left, Center & Right, Surround-55s, MX-70B Sub | Harmony 950 remote | Panamax 5100 | OPPO UDP-203 | LG OLED55B7

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#10372 - 05/15/07 12:01 PM Re: Hum/Ground Loop Issues
gonk Offline
Desperado

Registered: 03/21/01
Posts: 14054
Loc: Memphis, TN USA
This is a pretty interesting idea, AvFan. It could be a good resource.
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gonk
HT Basics | HDMI FAQ | Pics | Remote Files | Art Show
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#10373 - 05/15/07 12:29 PM Re: Hum/Ground Loop Issues
nfaguys Offline
Desperado

Registered: 04/09/05
Posts: 500
Loc: Maine
An excellent idea. Perhaps the outlaws would not only create such a saloon...but..it would be helpful to those with hum if previous posts dealing with it could be moved there.
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Living Room:
5.1 Surround and 4channel inline room
990/7700/6-KEF-107s/LFM1 x 2/ SMS Awaiting Trinnov
Millenium dts decoder;Digital Director
Players: Tascam CD01U/SonyCX455 x 3/DV955/BDP83
Old Sony 60" SXRD TV
Zone 2 (also liv-Room: listening to music while Mrs watches TV): Crown SL2 preamp/D40 Amp/Stax Headphones



My "Man-cave":
4 channel-only inline room. No TV (thank heaven)!!!
990/755/4-KEF 107s
Tascam CD01U/dts decoder/digital director
Alesis 16x4x2 mixer
Recorders Alesis HD24/ML9600/Crown CX844s/SonyDAT/Tascam DA38
Ham Radio Shack (KB1STH) ICOM/Yaesu/Drakes x 3

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#10374 - 06/28/07 05:41 PM Re: Hum/Ground Loop Issues
Westlake HR1 Offline
Deputy Gunslinger

Registered: 06/27/07
Posts: 5
GL problems can be a nightmare that's for sure. Many use cheater plugs or filters as a quick fix. Not a good idea. Find the source or sources.

For you HT types, your cable tv input could be the source.

All my equipment use balanced ins and outs . I make my own interconnects using Canare bi-wire cable and drop pin 1 at the input of each amp or signal processor (called telescoping interconnects). This is a common practice in recording studio wiring schematics.

Make sure the whole system is plugged into the same power source (outlet). A 20-30 amp dedicated line is great.

If you use balanced lines and do the above your system will be dead silent (depending on the quality of your components).

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