Yes, that is all. Just in case you don't fully understand, they mean only at one end. You can either reverse the speaker wires at the amplifier end, or at the speaker end (same result).
Connect my amp out of phase?
My new preamp, AES / Ary AE-3 DJH says "connect your amplifier out of phase when using this preamp. The output of the AE-3 is inverting. Connect your speaker wire out of phase (+) to (-) and (-) to (+)." Is the only thing that I need to connect differently, the speaker cable?
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There are a number of threads on reversing polarity. There is something called Woods Effect that some hear when polarity is reversed. Many people don't hear it. Whether a component (this is not unique to pre-amps -- amps, DACs, etc can reverse polarity, and things can be recorded with reversed polarity) reverses polarity just has to do with how the circuitry is implemented. |
Your preamp is of a simple design, although unconventional, not something exotic. Most amplifying devices (tubes, transistors) change the polarity of the input signal. In order to provide the correct polarity at the preamp output, another gain stage (tube, transistor, or transformer) has to be added, which means more wires, devices and $$$. The extra gain stage is found in most all "conventional" preamps. |
For [email protected] The design of many amplifier stages result in inverting the polarity. Your common everyday "op-amp" is most likely inverting. A preamp may have several stages - and if it has an odd number of inverting phases - then the preamp as a whole will be inverting. Nothing really unusual about the AES preamp in question here - except that the manufacturer leaves it to the user to correct the polarity - rather than reverse wiring some connnection themselves. Dr. Gregory Greenman Physicist |