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My Oppo 105 has stoped out putting to my sub...

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Posted on May 4, 2017 at 21:01:06
ABliss
Audiophile

Posts: 1482
Joined: March 16, 2001
Contributor
  Since: August 3, 2002
 I have been watching a few movies lately and noticed the sub was not turning on when switched to HT mode. I checked all the cables, checked the set up in the 105 set up. All chanels responded fine with the test tone, except the sub. Almost nothing from the sum.

If I manually turn the sub on, I just get a low buzz with the test tone.
The sub is fine when played in 2.1 from my preamp.

Could it be a software issue or will I have to send it to Oppo for service.

AB.

 

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RE: My Oppo 105 has stoped out putting to my sub..., posted on May 6, 2017 at 19:42:41
Rod M
Web Geek

Posts: 16242
Location: So. California
Joined: March 1, 1999
Contributor
  Since: March 1, 1999
 How is the sub wired? Mine runs off the second outputs from the preamp and I just set up the HT to have no sub and full range speakers and run the main outputs from the HT processor to the preamp. Then I setup the sub to integrate.

What preamp are you using?


-Rod

 

RE: My Oppo 105 has stoped out putting to my sub..., posted on May 7, 2017 at 21:04:43
ABliss
Audiophile

Posts: 1482
Joined: March 16, 2001
Contributor
  Since: August 3, 2002
 Well, your way is exactly how I have had to go now. I am using a McIntosh c48, and usually use the second set of output to the sub, just for 2.1 listening. For HT I would turn off that second output as the sub output from the Oppo feeds directly to the sub on separate inputs.

It was working fine until the last couple movies I noticed things sounded kind of light in the bass. So I looked and noticed the sub light was not turning green in the auto mode. I then checked all cables, and did the tone test in the Oppo setup to confirm the problem.

I have since tried the setup you describe and found it works well, although I did not change the setting in the Oppo to no sub, I have the fronts as large but never thought the Oppo sent so much bass to the fronts when you select yes for a sub. So I guess I could continue to use it this way, but I would still like to fix it.

Now that I am thinking about it, I wonder if my 2.1 setup been back feeding into the Oppo and fried the Oppo output ?? I have had the Oppo for years and the sub was just for HT strictly. I just recently bought a new sub with balanced and unbalanced inputs and decided to go 2.1 also. Although the Oppo is always off when I play 2.1
The sub is a HSU ULS 15 mk2, I would have to check with them if it's posible for the balanced input to feed back through the unbalanced one.

Well thanks for your thoughts.

AB.

 

RE: My Oppo 105 has stoped out putting to my sub..., posted on May 8, 2017 at 19:12:58
Rod M
Web Geek

Posts: 16242
Location: So. California
Joined: March 1, 1999
Contributor
  Since: March 1, 1999
 Just setting the Oppo to no sub seems like the easy way out and just run everything via the second preamp output.

-Rod

 

RE: My Oppo 105 has stoped out putting to my sub..., posted on May 9, 2017 at 09:09:59
ABliss
Audiophile

Posts: 1482
Joined: March 16, 2001
Contributor
  Since: August 3, 2002
 Yes, you are correct, I am not going to worry about it. That will also eliminate one set of cables, as I am certainly not changing for the 205 any time soon.

AB.

 

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