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Stereo to Mono Conversion: Difference between revisions

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;Can I connect a stereo output to a mono input on a Bose Portable PA Product?
:There are [https://www.amazon.com/slp/stereo-to-mono-adapter/pxpkk2fgdtrd4ts cables and simple converters] that claim to do this. ''We recommend that you don't'' use them (see [[{{PAGENAME}}#Introduction|details below]] about why you shouldn't). Do one of the following:
:*The L1 Pro, {{S1}}, {{S1 Pro+}} and {{Compact}} have stereo 1/8-inch (3.5 mm) Tip-Ring-Sleeve  Aux inputs. Use those stereo inputs.
:*Split the stereo signal to two mono signals and connect to two separate mono inputs <br>[[File:18TRSto2x14TS.png|200px|Hosa CMP159 Stereo Breakout, 3.5 mm TRS to Dual 1/4 in TS, 10-Feet ]]
:*Convert the signal to mono at the source and use a simple Tip-Sleeve connector to the Bose Portable PA device. See:[[IOS Mono]], [[Android Mono]], [https://www.howtogeek.com/333367/how-to-make-your-windows-10-pc-use-mono-audio-so-you-can-wear-one-earbud/ Windows Mono]
:*Convert the signal to mono and if the output is balanced, use a 1/4 inch (6.3 mm) Tip-Ring-Sleeve or XLR to 1/4 inch (6.3 mm) Tip-Ring-Sleeve cable
:*Use a stereo to mono converter. Here are some examples: [http://www.radialeng.com/product/mix-21 Radial 2:1] or [https://www.amazon.com/Galaxy-Audio-JIBR-RCA-Combiner/dp/B005GJCA6M?ref_=fsclp_pl_dp_8 Galazy Audio JIBR RCA Combiner] or [https://www.google.com/search?client=firefox-b-d&q=DIY+stereo+to+mono+adapter build your own]
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The following is an excerpt from [https://www.prosoundweb.com/rane-note-why-not-wye-or-y-for-that-matter/ Why Not Wye]


[http://www.rane.com/note109.html Why Not Wye]
===Introduction===
 
Wye-connectors (or "Y"-connectors, if you prefer) should never have been created.
 
Anything that can be hooked-up wrong, will be. You-know-who said that, and she was right. A wye-connector used to split a signal into two lines is being used properly; a wye-connector used to mix two signals into one is being abused and may even damage the equipment involved.
 
:'''{{Why Not Wye Explanation}}'''
 
 
;Subwoofers: Monoing Your Low End
 
One of the most common examples of tying two outputs together is in "monoing" the low end of multiway active crossover systems. This combined signal is then used to drive a sub-woofer system.
 
Since low frequencies below about 100Hz have such long wavelengths (several feet), it is very difficult to tell where they are coming from (like some of your friends). They are just there -- everywhere. Due to this phenomenon, a single sub-woofer system is a popular cost-effective way to add low frequency energy to small systems.
 
So the question arises as how best to do the monoing, or summing, of the two signals? It is done very easily by tying the two low frequency outputs of your crossovers together using the resistive networks described below. You do not do it with a wye-cord.
 
 
Download the full article: [[Media:Why Not Wye.pdf|Why Not Wye.pdf]]
 
=== L1 Pro ===
{{L1 Pro icon}}
{{Why Not Wye Explanation}}
 
All of the following images apply to the L1 Pro models as well as ToneMatch mixers.
 
[[Image:TRSfromStereoRCAT4ST8S.png|600px]]
 
[[Image:TRSfromStereo14T4ST8S.png|600px]]
 
[[Image:18trsto14trsT4ST8S.png|600px]]
 
[[Image:XLR Female x2 to 14trs.jpg|600px]]
 
=== Compact ===
{{Why Not Wye Explanation}}
 
* If your source has RCA outputs, use a standard RCA-RCA cable to connect to Compact Channel 2 RCA inputs.
* If your source has a 1/8" stereo output, use a 1/8" Tip-Ring-Sleeve cable to connect to the Compact Channel 2 1/8" input.
 
 
[[Image:TRSfromStereoRCACompact2.png|600px]]
 
[[Image:TRSfromStereo14Compact2.png|600px]]
 
=== S1 Pro system ===
{{Why Not Wye Explanation}}
 
* If your source has RCA outputs, use a standard RCA to 1/8 inch Tip-Ring-Sleeve
* If your source has a 1/8" stereo output, use a 1/8" Tip-Ring-Sleeve cable to connect to the S1 Pro Aux 1/8" input.
 
 
[[Image:TRSfromStereoRCAS1Pro.png|600px]]
 
[[Image:TRSfromStereo14S1Pro.png|600px]]
 
=== Model 1S ===
{{Why Not Wye Explanation}}
 
[[Image:TRSfromStereoRCAModel1S.png|600px]]
 
[[Image:TRSfromStereo14Model1S.png|600px]]
 
=== Model II ===
{{Why Not Wye Explanation}}
 
[[Image:TRSfromStereoRCAModelII.png|600px]]
 
[[Image:TRSfromStereo14ModelII.png|600px]]
 
=== {{T1 nl}} ===
{{Why Not Wye Explanation}}
 
[[Image:TRSfromStereoRCAT1.png|600px]]
 
[[Image:TRSfromStereo14T1.png|600px]]
 
[[Image:18trsto14trsT1.png|600px]]
 
 
 
=== T4S/T8S ToneMatch Mixers ===
 
{{Why Not Wye Explanation}}
 
[[Image:TRSfromStereoRCAT4ST8S.png|600px]]
 
[[Image:TRSfromStereo14T4ST8S.png|600px]]
 
[[Image:18trsto14trsT4ST8S.png|600px]]
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