ririt
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Posts: 12
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Post by ririt on Jun 20, 2020 9:55:56 GMT -5
Since I am envisaging to get a XMC-2 and associate it with a combo of Hypex and Purifi class D power amplifiers, I would like to know what is its maximum voltage? The idea behind this question is to check whether or not it matches well with the input voltage of these class D amps between 1.6 and 2.5V depending on the model selected. Any feedback on this would be also greatly appreciated! Thanks in advance for your support.
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Post by ttocs on Jun 20, 2020 13:00:59 GMT -5
I haven't measured my XMC-2, but I recall the XMC-1 was somewhere around 5V RMS output. When I made the switch I didn't notice any difference. Maybe I'll measure that tomorrow just for fun.
edit: From the XMC-1 manual:
Maximum Output Level (Analog)
Balanced Outputs: 11 VRMS
Unbalanced Outputs: 5.5 VRMS
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ririt
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Posts: 12
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Post by ririt on Jun 21, 2020 1:49:10 GMT -5
It would be great if you would be able to provide accurate data. Not only for fun but to inform potential future XMc-2 users like me.
I am eager to see the results!
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Post by bluescale on Jun 21, 2020 3:06:06 GMT -5
I'm not sure about maximum output, but I know ASR tested at 4V.
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Post by ttocs on Jun 21, 2020 9:19:48 GMT -5
^^^^^^
And there ya go.
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ririt
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Posts: 12
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Post by ririt on Jun 21, 2020 9:50:38 GMT -5
ASR tested RMC1 not XMC 2. Not sure that both share the same max output.
Moreover, any though regarding optimal compatibility with amp input voltage?
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Post by AudioHTIT on Jun 21, 2020 10:02:06 GMT -5
ASR tested RMC1 not XMC 2. Not sure that both share the same max output. Moreover, any though regarding optimal compatibility with amp input voltage? The specs between the units should be very comparable. The voltage requirements of your amps are also very typical of modern equipment, none of the processors should have any difficulty driving them. |
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ririt
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Posts: 12
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Post by ririt on Jun 21, 2020 10:27:08 GMT -5
ASR tested RMC1 not XMC 2. Not sure that both share the same max output. Moreover, any though regarding optimal compatibility with amp input voltage? The specs between the units should be very comparable. The voltage requirements of your amps are also very typical of modern equipment, none of the processors should have any difficulty driving them. Thanks good to know that xmc 2 should drive them easily |
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ririt
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Posts: 12
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Post by ririt on Jun 24, 2020 11:03:45 GMT -5
I haven't measured my XMC-2, but I recall the XMC-1 was somewhere around 5V RMS output. When I made the switch I didn't notice any difference. Maybe I'll measure that tomorrow just for fun. edit: From the XMC-1 manual: Maximum Output Level (Analog) Balanced Outputs: 11 VRMS Unbalanced Outputs: 5.5 VRMS Did you find the time to measure the output voltage? |
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Post by ttocs on Jun 24, 2020 12:33:10 GMT -5
I haven't measured my XMC-2, but I recall the XMC-1 was somewhere around 5V RMS output. When I made the switch I didn't notice any difference. Maybe I'll measure that tomorrow just for fun. edit: From the XMC-1 manual: Maximum Output Level (Analog) Balanced Outputs: 11 VRMS Unbalanced Outputs: 5.5 VRMS Did you find the time to measure the output voltage? Sorry, no. I figure that if ASR measured 4V with the high dollar equipment he's got, then that should be correct. See a few posts above. |
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ririt
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Posts: 12
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Post by ririt on Jun 24, 2020 14:03:55 GMT -5
Did you find the time to measure the output voltage? Sorry, no. I figure that if ASR measured 4V with the high dollar equipment he's got, then that should be correct. See a few posts above. Ok Thanks let’s consider 4V as the right figure |
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Post by Gary Cook on Jun 24, 2020 21:26:41 GMT -5
My answer would be it doesn't matter, it's almost irrelevant. The output voltage varies with volume, so it varies from 0 volts to some maximum that hardly anyone ever uses because it's TOO LOUD for ears and for speakers to handle.
In a matching sense of far more importance is the output impedance of the preamp and the input impedance of the power amp.
Cheers
Gary
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ririt
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Post by ririt on Jun 25, 2020 1:12:14 GMT -5
My answer would be it doesn't matter, it's almost irrelevant. The output voltage varies with volume, so it varies from 0 volts to some maximum that hardly anyone ever uses because it's TOO LOUD for ears and for speakers to handle. In a matching sense of far more importance is the output impedance of the preamp and the input impedance of the power amp. Cheers Gary Gary, thanks to raised the importance of matching output and input impedance. The power amps I am envisaging to use with a XMC2 display input impedances of either 47 kOhms or 100kOhms. Since I cannot find any value regarding the output impedance of XMC2, it is difficult for me to see if there is a good match. thanks in advance to provide me with your insights |
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Post by garbulky on Jun 25, 2020 9:01:46 GMT -5
My answer would be it doesn't matter, it's almost irrelevant. The output voltage varies with volume, so it varies from 0 volts to some maximum that hardly anyone ever uses because it's TOO LOUD for ears and for speakers to handle. In a matching sense of far more importance is the output impedance of the preamp and the input impedance of the power amp. Cheers Gary Gary, thanks to raised the importance of matching output and input impedance. The power amps I am envisaging to use with a XMC2 display input impedances of either 47 kOhms or 100kOhms. Since I cannot find any value regarding the output impedance of XMC2, it is difficult for me to see if there is a good match. thanks in advance to provide me with your insights Most power amps will have a gain of between 27-34 db gain settings. 4V is more than enough to drive them to clipping - or its max output. For instance my XPA-1 gen 2 has a 29 db gain and outputs 1000 watts @ 4 ohms doesn't require anything past the max output of my gear to get to clipping. Unless you have a niche amp with 14 db gain I don't think the drive would be an issue. I Hope that helps. |
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Post by megash0n on Jun 25, 2020 9:29:12 GMT -5
Gary, thanks to raised the importance of matching output and input impedance. The power amps I am envisaging to use with a XMC2 display input impedances of either 47 kOhms or 100kOhms. Since I cannot find any value regarding the output impedance of XMC2, it is difficult for me to see if there is a good match. thanks in advance to provide me with your insights Most power amps will have a gain of between 27-34 db gain settings. 4V is more than enough to drive them to clipping - or its max output. For instance my XPA-1 gen 2 has a 29 db gain and outputs 1000 watts @ 4 ohms doesn't require anything past the max output of my gear to get to clipping. Unless you have a niche amp with 14 db gain I don't think the drive would be an issue. I Hope that helps. I just read some posts from 2016 you contributed to that discuss this at great length. It was pretty informative for me. Appreciate it. |
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ririt
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Posts: 12
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Post by ririt on Jun 25, 2020 10:12:56 GMT -5
Most power amps will have a gain of between 27-34 db gain settings. 4V is more than enough to drive them to clipping - or its max output. For instance my XPA-1 gen 2 has a 29 db gain and outputs 1000 watts @ 4 ohms doesn't require anything past the max output of my gear to get to clipping. Unless you have a niche amp with 14 db gain I don't think the drive would be an issue. I Hope that helps. I just read some posts from 2016 you contributed to that discuss this at great length. It was pretty informative for me. Appreciate it. Can you please share the links? Thanks |
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Post by megash0n on Jun 25, 2020 11:30:12 GMT -5
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ririt
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Posts: 12
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Post by ririt on Jun 26, 2020 10:11:10 GMT -5
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