No sound from right speaker.
Oct 8, 2014 at 8:49 PM Thread Starter Post #1 of 12
Ali89

Ali89

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I have a 2.1 setup. Well, more like 1.1. The right speaker does not produce any sound.

The bookshelf speakers are connected to an amp that had speaker output, 3.5mm input, and rca input. In order to connect my computer and sub, I use a 3.5mm y splitter. One of the splitter ends goes to the amp, the other goes to the sub. But when the sound system is connected this way, there's no sound coming from the right speaker. There's only sound coming from the left speaker and the sub.

If I only plug in the amp, both speakers will work. Is there anyway I can work this out so there's sound from both bookshelf speakers and the sub? Thanks.

http://www.newegg.com/Product/Product.aspx?Item=N82E16886948004

http://www.newegg.com/Product/Product.aspx?Item=N82E16886948002

http://www.amazon.com/Lepai-LP-2020A-Tripath-Class-T-Amplifier/dp/B0049P6OTI/
 
Oct 9, 2014 at 1:03 PM Post #2 of 12
ali89 said:
I have a 2.1 setup. Well, more like 1.1. The right speaker does not produce any sound.

The bookshelf speakers are connected to an amp that had speaker output, 3.5mm input, and rca input. In order to connect my computer and sub, I use a 3.5mm y splitter. One of the splitter ends goes to the amp, the other goes to the sub. But when the sound system is connected this way, there's no sound coming from the right speaker. There's only sound coming from the left speaker and the sub.

If I only plug in the amp, both speakers will work. Is there anyway I can work this out so there's sound from both bookshelf speakers and the sub? Thanks.
Click to expand...

 
Why not just hook up the amp's speaker outputs to the crossover inputs on the sub, then run a cable from that output to the speakers with a high pass filter likely applied already.
 
The problem is that your 3.5mm Y-splitter might not be wired like a headphone splitter cable that allows two people to listen, but splits Left and Right, hence you are actually plugging the Right input into the sub, while the 3.5mm you plug into the amp only has the contact for the left channel wired up.
 
Oct 9, 2014 at 1:09 PM Post #3 of 12
protegemaniac said:
Why not just hook up the amp's speaker outputs to the crossover inputs on the sub, then run a cable from that output to the speakers with a high pass filter likely applied already.
Click to expand...


I agree with this method of wiring things up. However, most likely there is no high pass filter applied to the outgoing speaker level signal. I have yet to find a budget home audio sub that has a high pass filter on the speaker level outputs.
 
Oct 10, 2014 at 12:40 AM Post #6 of 12
But the splitter I currently have is labeled as a head phone splitter.

http://www.amazon.com/gp/aw/d/B000067RC4?cache=d0fe454ab40a5d872151795daa2ee39a&pi=SX200_QL40&qid=1412915987&sr=8-1#ref=mp_s_a_1_1
 
Oct 10, 2014 at 3:55 AM Post #8 of 12
ali89 said:
But the splitter I currently have is labeled as a head phone splitter.

http://www.amazon.com/gp/aw/d/B000067RC4?cache=d0fe454ab40a5d872151795daa2ee39a&pi=SX200_QL40&qid=1412915987&sr=8-1#ref=mp_s_a_1_1
Click to expand...

 
Actually it is labelled "Speaker and Headphone Splitter". I know it may be confusing, but most likely it is as others already stated: it just offers two mono connections for left and right channels (that's what one would want for speakers). The type of cable used would suggest that too.
 
As PM stated above you can test that by plugging headphones into it - if this is what you need, you will hear nice stereo sound.
 
This splitter should work.
 
Oct 10, 2014 at 1:43 PM Post #9 of 12
So I tried out a combination of speaker and headphone setup into the 3.5mm y splitter.
 
Headphone + Headphone + Splitter = Works but in a mono setting, not stereo. No separate channels.
Headphone + Speakers + Splitter = Works Perfectly
Headphone + Splitter = Works Perfectly
Speaker  + Splitter = Works Perfectly
 
Could it still be the splitter that causes the issue with the Sub + Speaker combination?
 
This guy seems to have a setup that works.
 
https://www.youtube.com/watch?v=mGRDgo_tyJE
 
At 7:50 you can see how he connects the sub and computer to the amp while keeping both speakers functional. Though it seems a bit overboard with the amount of paraphernalia he uses.
 
Oct 10, 2014 at 7:26 PM Post #10 of 12
It looks like your sub is causing the trouble, but there's one confusing element in this.
I wouldn't be surprised if the sub accepts mono input, or combines L+R signal into one. Since the Y-splitter provides galvanic connection, the result would be that the amp receives mono signal as well.
But from what you describe it seems that the sub uses only one of the channels and the other is muted (i.e. connected to ground).
Can you confirm that when you unplug the sub both speakers play correctly, and as soon as it's plugged in one channel is muted?
 
Oct 10, 2014 at 10:53 PM Post #11 of 12
ali89 said:
  So I tried out a combination of speaker and headphone setup into the 3.5mm y splitter.
 
Headphone + Headphone + Splitter = Works but in a mono setting, not stereo. No separate channels.
Headphone + Speakers + Splitter = Works Perfectly
Headphone + Splitter = Works Perfectly
Speaker  + Splitter = Works Perfectly
 
Could it still be the splitter that causes the issue with the Sub + Speaker combination?
 
This guy seems to have a setup that works.
 
https://www.youtube.com/watch?v=mGRDgo_tyJE
 
At 7:50 you can see how he connects the sub and computer to the amp while keeping both speakers functional. Though it seems a bit overboard with the amount of paraphernalia he uses.
Click to expand...

 
The sub might be causing the issue. Why not just run speaker cables from the amp to the sub, then from there to the stereo speakers?
 
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