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#1
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Ancient Topic: Stereo > Mono "Switch"
EUREKA!!
Some of you may remember me bringing up how to build one of these in a thread that goes back almost to last December. Well, it seems I discovered a "quick n' dirty" method of building a S2M switch right into a pair of RCA cables: Take two stereo cables(3', 6'), and place a "Y" adaptor on both the red and white(R & L) cables of the first cable. Barrel one branch of each Y into the red and white males of the second cable. Now: leave the remaining "Y" branches open - Stereo. Barrel 'em together: MONO!! Only catch - Should I figger on how to put some type o' resistor on that mono thingie?? Or just insert so the negative(outer shield) is not closed?? -ChrisCoaster "PS going to mono like that is a good test of phase balance for stereo and older Pro Logic systems" |
#2
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Ancient Topic: Stereo > Mono "Switch"
ChrisCoaster wrote:
EUREKA!! Some of you may remember me bringing up how to build one of these in a thread that goes back almost to last December. Well, it seems I discovered a "quick n' dirty" method of building a S2M switch right into a pair of RCA cables: Take two stereo cables(3', 6'), and place a "Y" adaptor on both the red and white(R & L) cables of the first cable. Barrel one branch of each Y into the red and white males of the second cable. Now: leave the remaining "Y" branches open - Stereo. Barrel 'em together: MONO!! Only catch - Should I figger on how to put some type o' resistor on that mono thingie?? Or just insert so the negative(outer shield) is not closed?? Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. -ChrisCoaster "PS going to mono like that is a good test of phase balance for stereo and older Pro Logic systems" -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#3
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Ancient Topic: Stereo > Mono "Switch"
ChrisCoaster wrote:
EUREKA!! Some of you may remember me bringing up how to build one of these in a thread that goes back almost to last December. Well, it seems I discovered a "quick n' dirty" method of building a S2M switch right into a pair of RCA cables: Take two stereo cables(3', 6'), and place a "Y" adaptor on both the red and white(R & L) cables of the first cable. Barrel one branch of each Y into the red and white males of the second cable. Now: leave the remaining "Y" branches open - Stereo. Barrel 'em together: MONO!! Only catch - Should I figger on how to put some type o' resistor on that mono thingie?? Or just insert so the negative(outer shield) is not closed?? Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. -ChrisCoaster "PS going to mono like that is a good test of phase balance for stereo and older Pro Logic systems" -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#4
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Ancient Topic: Stereo > Mono "Switch"
ChrisCoaster wrote:
EUREKA!! Some of you may remember me bringing up how to build one of these in a thread that goes back almost to last December. Well, it seems I discovered a "quick n' dirty" method of building a S2M switch right into a pair of RCA cables: Take two stereo cables(3', 6'), and place a "Y" adaptor on both the red and white(R & L) cables of the first cable. Barrel one branch of each Y into the red and white males of the second cable. Now: leave the remaining "Y" branches open - Stereo. Barrel 'em together: MONO!! Only catch - Should I figger on how to put some type o' resistor on that mono thingie?? Or just insert so the negative(outer shield) is not closed?? Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. -ChrisCoaster "PS going to mono like that is a good test of phase balance for stereo and older Pro Logic systems" -- ************************************************** ************* * \\\\\\\ Quality Ascii handcrafted by Peter Larsen /////// * * \\\\\\\ My site is at: http://www.muyiovatki.dk /////// * ************************************************** ******* |
#5
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Ancient Topic: Stereo > Mono "Switch"
Peter Larsen wrote in message ...
Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. _____________ What if no resistors used?? I only mono it briefly. -CC |
#6
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Ancient Topic: Stereo > Mono "Switch"
Peter Larsen wrote in message ...
Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. _____________ What if no resistors used?? I only mono it briefly. -CC |
#7
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Ancient Topic: Stereo > Mono "Switch"
Peter Larsen wrote in message ...
Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. _____________ What if no resistors used?? I only mono it briefly. -CC |
#8
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Ancient Topic: Stereo > Mono "Switch"
ChrisCoaster wrote:
Peter Larsen wrote in message ... Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. What if no resistors used?? I only mono it briefly. Bets begin to go "off" because it gets too easy for signal to flow between the outputs you sum. I'll leave it to more knowledgeable guys to explain what is more probable ... just attenuation or increased distortion due to incorrect signal entering the feedback loop or frequency response issues due to unlinear output impedance or "all of the above", but those are my instinctive worries. -CC Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#9
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Ancient Topic: Stereo > Mono "Switch"
ChrisCoaster wrote:
Peter Larsen wrote in message ... Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. What if no resistors used?? I only mono it briefly. Bets begin to go "off" because it gets too easy for signal to flow between the outputs you sum. I'll leave it to more knowledgeable guys to explain what is more probable ... just attenuation or increased distortion due to incorrect signal entering the feedback loop or frequency response issues due to unlinear output impedance or "all of the above", but those are my instinctive worries. -CC Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#10
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Ancient Topic: Stereo > Mono "Switch"
ChrisCoaster wrote:
Peter Larsen wrote in message ... Yes, using say a 1 kOhm series resistor in each channel prior to the mono-combiner is well behaved. What if no resistors used?? I only mono it briefly. Bets begin to go "off" because it gets too easy for signal to flow between the outputs you sum. I'll leave it to more knowledgeable guys to explain what is more probable ... just attenuation or increased distortion due to incorrect signal entering the feedback loop or frequency response issues due to unlinear output impedance or "all of the above", but those are my instinctive worries. -CC Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
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