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Old 02-29-2012, 05:13 AM
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YamahaFreak YamahaFreak is offline
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Question RCA Adapter Question

I am looking for a specific adapter to do a specific job, and Google searches are sketchy. I need an adapter that will take a stereo (2x RCA) cable and make it a mono (1x RCA) without removing either channel. A combiner, effectively. I basically need a way to run a stereo source into a mono amp/speaker without losing anything. If someone could point me in the direction of the cheapest way to do this, I would be most appreciative.
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Old 02-29-2012, 05:19 AM
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one of these should do it ..
rca splitter ..




or one of these ...
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Old 02-29-2012, 05:50 AM
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Search for Y cables
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Old 02-29-2012, 07:11 AM
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Thank you!

petehall, were there supposed to be links in your post?

After browsing more of this board, I fear I may have posted in the wrong area.
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Old 03-24-2012, 01:41 PM
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Is it this simple? I thought you needed some type of electronics or circuit to sum the L and R channel.
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Old 03-24-2012, 06:15 PM
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Quote:
Originally Posted by ilusndweller View Post
Is it this simple? I thought you needed some type of electronics or circuit to sum the L and R channel.
+2, thought a y-cable was to split one signal into two identical signals. You're not going to get a mono signal from hooking the left and right together, surely?
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Old 03-24-2012, 06:49 PM
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Quote:
Originally Posted by YamahaFreak View Post
I need an adapter that will take a stereo (2x RCA) cable and make it a mono (1x RCA) without removing either channel. A combiner, effectively.
I'd call that a short!
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Old 03-24-2012, 10:49 PM
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Not as bad as you might think, but not the best solution. If both outputs are from the same line level device they share a common ground, so usually the voltages will sum just fine and result in a mono signal. The output impedance, however, will be lower since both will be in parallel. Usually there will be a buffer following the sum to set the output impedance, but you won't get that out of a cable.
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Old 04-19-2012, 02:29 PM
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><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º>`·.¸¸.·´¯ `· .¸.·´¯`·...¸><((((º>‏

In fact I read, Art Dudley recommended two Y adapters connected at the (combined) single end tail side to sum a Stereo feed to dual Mono feed as a cheap and simple way to enjoy Mono recordings on a Stereo system.

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Old 07-11-2012, 03:35 AM
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It may have been a good idea to elaborate on why I needed this done. x3

I have an old Webcor 4905 two-way amplified speaker (vacuum tube amp) and want to use it with stereo sources. It's got one 'LO' input and one 'HI' input, both a single mono RCA jack. I need to sum the two (stereo) RCA cables from my stereo sources into the single (mono) input on the amp, without losing anything. So far, I am using a generic 2-to-1 RCA adapter cable, and it seems right, but the sound is off a bit, and I just can't put my finger on why. Both channels DO seem to be there...
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Old 07-11-2012, 06:20 AM
stu49 stu49 is offline
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I made one using the lead from an old set of headphones. Worked perfectly for years feeding mono vcr into stereo amp.
Much easier to buy 2rca male -1 rca male. They are readily available.

cheers
Stu
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