a2-300 strange hum, Help - Blu-ray Forum

skatinkamel · 08-07-2010, 04:56 PM

Just got my a2 300 yesterday and have been playing around with the settings. I put my volume at about half way and my LPF all the way up. I put my phase at 0. After doing this I calibrated with audyssey. What concerns me is this low hum that is constantly coming from the sub. Has anyone else heard this? As i turn down the LPF and volume it goes away. Any suggestions?

progers13 · 08-07-2010, 05:02 PM

Quote:

Originally Posted by skatinkamel

Just got my a2 300 yesterday and have been playing around with the settings. I put my volume at about half way and my LPF all the way up. I put my phase at 0. After doing this I calibrated with audyssey. What concerns me is this low hum that is constantly coming from the sub. Has anyone else heard this? As i turn down the LPF and volume it goes away. Any suggestions?

Most likely it is a ground loop hum. These can be tricky to eliminate, and usually the source is a cable box (or equivalent satellite box).

Many people have had success using a 3-prong into 2-prong adapter. These can be picked up for a few bucks at your local Home Depot.

There's a sticky out there somewhere that talks about this problem, but I can't seem to locate it. I'll revise my post if I can find it. You could also PM Big Daddy, as he may be able to provide you with more help. In the meantime, I would try the 3-into-2 adapter and see if that solves your problem.

Edit: Still can't find the sticky, but read through THIS page on the eD sub owner's thread, where a couple of members were talking about the ground loop problem.

Edit 2: Found the sticky. Read through it here: https://forum.blu-ray.com/home-theat...isolators.html

crazyBLUE · 08-07-2010, 05:05 PM

https://forum.blu-ray.com/home-theat...isolators.html

progers13 · 08-07-2010, 05:10 PM

Quote:

Originally Posted by crazyBLUE

https://forum.blu-ray.com/home-theat...isolators.html

Thanks Brent!

crazyBLUE · 08-07-2010, 05:12 PM

Quote:

Originally Posted by progers13

Thanks Brent!

Looked like you needed a little help there Paul

progers13 · 08-07-2010, 05:14 PM

Quote:

Originally Posted by crazyBLUE

Looked like you needed a little help there Paul

I was trying to help a fellow eD brother out, but man I just couldn't find that sticky!

crazyBLUE · 08-07-2010, 05:18 PM

Quote:

Originally Posted by progers13

I was trying to help a fellow eD brother out, but man I just couldn't find that sticky!

It was in Home Theater General Discussion !

Hope he solves it . Back to cleaning

See you later on

skatinkamel · 08-07-2010, 06:26 PM

Thanks for the sticky. Its very helpful. I swear that guy has a sticky for everything hometheater! but i still cant reduce the hum. There is no cable box connected to my reciever nor is there a pc connected. I also dont have the cables anywhere close to each other. I dont know what to do. Im beginning to think it may have somthing to do with the reciever im using.

progers13 · 08-07-2010, 09:23 PM

Quote:

Originally Posted by skatinkamel

Thanks for the sticky. Its very helpful. I swear that guy has a sticky for everything hometheater! but i still cant reduce the hum. There is no cable box connected to my reciever nor is there a pc connected. I also dont have the cables anywhere close to each other. I dont know what to do. Im beginning to think it may have somthing to do with the reciever im using.

Have you tried plugging it into a different outlet and see if it stills does it? Also, try the 3-prong into 2-prong adapter and see if that takes care of it. If not, call eD as they might be able to walk you through some other options.

MrFattBill · 08-07-2010, 09:34 PM

Any dimmer switches in the room?

Bill

skatinkamel · 08-08-2010, 01:05 AM

ive fixed it...finally. it was the cable. thanks everyone for all the help. I was wondering has anyone gotten a popping sound from their a2 300 before it occurs mostly in games. i cant really figure it out it occurs at low levels too.

skatinkamel · 08-09-2010, 01:11 AM

if anyone was curious as to what the popping was i found out after speaking with someone in the eD tech department. It was the dust cap flapping. It was caused by a loose spot in the cone of the speaker. I dont know how that happened.

but the good part is they are sending me some of their adhesive so i can re attach the loose part in the cone of the speaker. They offered to replace the speaker, but this seemed easier.

08-07-2010, 04:56 PM	#1
skatinkamel Active Member Member since:Jan 2009 Location:Lynchburg, VA Blu-ray collection:119 Trading Score:2	a2-300 strange hum, Help Just got my a2 300 yesterday and have been playing around with the settings. I put my volume at about half way and my LPF all the way up. I put my phase at 0. After doing this I calibrated with audyssey. What concerns me is this low hum that is constantly coming from the sub. Has anyone else heard this? As i turn down the LPF and volume it goes away. Any suggestions?

08-07-2010, 05:05 PM	#3
crazyBLUE Moderator Top ranked HT gallery Top contributor Member since:Aug 2008 Location:Pacific Northwest Home Theater Gallery:89 Blu-ray collection:479 DVD collection:1 Blu-ray reviews: 38 Trading Score:30	https://forum.blu-ray.com/home-theat...isolators.html

08-07-2010, 06:26 PM	#8
skatinkamel Active Member Member since:Jan 2009 Location:Lynchburg, VA Blu-ray collection:119 Trading Score:2	Thanks for the sticky. Its very helpful. I swear that guy has a sticky for everything hometheater! but i still cant reduce the hum. There is no cable box connected to my reciever nor is there a pc connected. I also dont have the cables anywhere close to each other. I dont know what to do. Im beginning to think it may have somthing to do with the reciever im using.

08-07-2010, 09:34 PM	#10
MrFattBill Blu-ray Ninja Top ranked HT gallery Top contributor Member since:Aug 2009 Location:jO-hio Home Theater Gallery:206 Blu-ray collection:578 Trading Score:5	Any dimmer switches in the room? Bill

08-08-2010, 01:05 AM	#11
skatinkamel Active Member Member since:Jan 2009 Location:Lynchburg, VA Blu-ray collection:119 Trading Score:2	ive fixed it...finally. it was the cable. thanks everyone for all the help. I was wondering has anyone gotten a popping sound from their a2 300 before it occurs mostly in games. i cant really figure it out it occurs at low levels too.

08-09-2010, 01:11 AM	#12
skatinkamel Active Member Member since:Jan 2009 Location:Lynchburg, VA Blu-ray collection:119 Trading Score:2	if anyone was curious as to what the popping was i found out after speaking with someone in the eD tech department. It was the dust cap flapping. It was caused by a loose spot in the cone of the speaker. I dont know how that happened. but the good part is they are sending me some of their adhesive so i can re attach the loose part in the cone of the speaker. They offered to replace the speaker, but this seemed easier.

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