Greetings!
I've a question regarding modifying default speaker impedance on my AVR, Yamaha RX-V583.
The thing is that US models have selector for 6 and 8 ohms, and I guess almost everybody would use them in 8 ohms position to allow higher voltage supply to an amplifier.
The problem is that my model does not have a selector at all and by default Yamaha has chosen to enable only 6 ohms (maybe to guarantee an amplifier will not be overloaded).
Below is a screenshot from service manual showing "RY226" impedance selector relay:
Of course I'm not going to do any soldering job there. I just thought, due to the fact that relay function is disabled by software and it is stuck switched to AC_BL low voltage line, what if I remove wires from 5 & 6 pins (AC_BH) of CB222 connector, corresponding to the higher voltage line (I suppose that's 8 ohms position), and connect them instead of 1 & 2 pins?
I don't know exactly what those voltages represent in pink color.
I just want to use all the clean power what this amp has without limitations, it should be up to the user to notice the distortion and attenuate the volume regardless of speakers being used, doesn't it?
Let me also tell you that I haven't opened my receiver yet and I'm not sure if all those 6 wires are present at CB222 conenctor. I just took this from SM and suppose if it was different in other models they should have made a remark (as it is on other sections, like 120 or 230 volts selector).
Any suggestions, thoughts, recommendations - much appreciated!
I've a question regarding modifying default speaker impedance on my AVR, Yamaha RX-V583.
The thing is that US models have selector for 6 and 8 ohms, and I guess almost everybody would use them in 8 ohms position to allow higher voltage supply to an amplifier.
The problem is that my model does not have a selector at all and by default Yamaha has chosen to enable only 6 ohms (maybe to guarantee an amplifier will not be overloaded).
Below is a screenshot from service manual showing "RY226" impedance selector relay:
Of course I'm not going to do any soldering job there. I just thought, due to the fact that relay function is disabled by software and it is stuck switched to AC_BL low voltage line, what if I remove wires from 5 & 6 pins (AC_BH) of CB222 connector, corresponding to the higher voltage line (I suppose that's 8 ohms position), and connect them instead of 1 & 2 pins?
I don't know exactly what those voltages represent in pink color.
I just want to use all the clean power what this amp has without limitations, it should be up to the user to notice the distortion and attenuate the volume regardless of speakers being used, doesn't it?
Let me also tell you that I haven't opened my receiver yet and I'm not sure if all those 6 wires are present at CB222 conenctor. I just took this from SM and suppose if it was different in other models they should have made a remark (as it is on other sections, like 120 or 230 volts selector).
Any suggestions, thoughts, recommendations - much appreciated!
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