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Ayre A new dimension of musical enjoyment

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Old 10-17-2016, 06:31 AM
Biggar Biggar is offline
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Default Newbie Question Ahead

Okay, so this is a newbie question about Ayre amps. My speakers are rated at 4 ohms. My V5xe amp is rated at 150 watts per channel into 8 ohms and 300 watts per channel into 4 ohms. Because there are no discrete outputs to 8 or 4 ohm loads, does the amplifier automatically 'know' which load it is carrying? What about if my load is 6ohms, will the amplifier default to 150 or 300 watt output or does it vary its output to something between 150 and 300?
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Old 10-17-2016, 06:51 AM
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tdelahanty tdelahanty is online now
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Don't worry, your amp knows what to do, no adjustment necessary. Amps which use an output transformer or an auto former (Mac) are a different story and require selection of the proper tap.
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Old 10-17-2016, 08:51 AM
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Here's a quick primer on how power delivery works with conventional (non-transformer coupled) solid state amps. Power is calculated as voltage times current. The amp essentially delivers a stable voltage output dependent upon the signal level, but lower impedance speakers draw additional current. So for example a 4 ohm speaker draws twice as much current as an 8 ohm speaker which effectively doubles the power output. This is the ideal situation if the amp's power supply can source adequate power, if not the amp may reach its current limitation sooner such that the power cannot double as you halve the load impedance. Hope this helps!
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Old 10-17-2016, 09:43 AM
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Quote:
Originally Posted by audio bill View Post
Here's a quick primer on how power delivery works with conventional (non-transformer coupled) solid state amps. Power is calculated as voltage times current. The amp essentially delivers a stable voltage output dependent upon the signal level, but lower impedance speakers draw additional current. So for example a 4 ohm speaker draws twice as much current as an 8 ohm speaker which effectively doubles the power output. This is the ideal situation if the amp's power supply can source adequate power, if not the amp may reach its current limitation sooner such that the power cannot double as you halve the load impedance. Hope this helps!
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Old 10-17-2016, 10:58 AM
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Btw, there's no need to concern yourself with asking any questions around here no matter how basic you may think they are. That's the best way for members to share knowledge and help each other learn. None of us (at least I certainly don't) claim to have all the answers.
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Old 10-19-2016, 07:53 AM
ctsooner ctsooner is offline
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Bill, that was great. Seriously, that was so easy to read and understand. Made me think about my old Quicksilver amp with multiple taps. I knew and understood a bit, but I never even think about this now that I have the Ayre. Thanks....I really like this forum a lot.
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Old 10-19-2016, 08:22 AM
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Quote:
Originally Posted by audio bill View Post
Here's a quick primer on how power delivery works with conventional (non-transformer coupled) solid state amps. Power is calculated as voltage times current. The amp essentially delivers a stable voltage output dependent upon the signal level, but lower impedance speakers draw additional current. So for example a 4 ohm speaker draws twice as much current as an 8 ohm speaker which effectively doubles the power output. This is the ideal situation if the amp's power supply can source adequate power, if not the amp may reach its current limitation sooner such that the power cannot double as you halve the load impedance. Hope this helps!
Great explanation!!!! Very clear and concise!
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Old 03-23-2017, 06:10 AM
Biggar Biggar is offline
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Sorry to be so late in saying thanks. Thanks, Bill. Yours was a very helpful answer.
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Old 03-24-2017, 09:00 AM
ctsooner ctsooner is offline
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Yes, Bill has a way of making much of the tech easier for us to understand. I've been listening and talking to folks in this hobby since I was 9, however I'm not the tech guy and still am learning so much. Thanks.
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