I'm a newbie so please bear with me here.
I have a Sony surround sound amp. I wanted to improve the quality of sound when listening to music so I built a set of speakers. I have two drivers per enclosure wired in parallel, they are 4 ohm drivers. It occurred to me this makes the load impedance 2 ohms. Should I put a 2 ohm resistor in there to bring the load back up to 4 ohms? Would it be better to wire the drivers in series, or would that not work properly? Thanks.
I have a Sony surround sound amp. I wanted to improve the quality of sound when listening to music so I built a set of speakers. I have two drivers per enclosure wired in parallel, they are 4 ohm drivers. It occurred to me this makes the load impedance 2 ohms. Should I put a 2 ohm resistor in there to bring the load back up to 4 ohms? Would it be better to wire the drivers in series, or would that not work properly? Thanks.
given the choice of serial connection or parallel+resistor connection :
1. If you do connect in parallel+2 ohm resistor, your resistor will dissipate a lot of power and should be rated accordingly (watts) ,plus you will lose 50% or more power in that resistor. without the resistor the load will be to hard for amp to drive. meaning not good for amplifier life.
2. I agree with Cal Weldon, I also recommend series connection.
1. If you do connect in parallel+2 ohm resistor, your resistor will dissipate a lot of power and should be rated accordingly (watts) ,plus you will lose 50% or more power in that resistor. without the resistor the load will be to hard for amp to drive. meaning not good for amplifier life.
2. I agree with Cal Weldon, I also recommend series connection.
Cal Weldon said:I would try running them in series.
Hartono said:given the choice of serial connection or parallel+resistor connection :
1. If you do connect in parallel+2 ohm resistor, your resistor will dissipate a lot of power and should be rated accordingly (watts) ,plus you will lose 50% or more power in that resistor. without the resistor the load will be to hard for amp to drive. meaning not good for amplifier life.
2. I agree with Cal Weldon, I also recommend series connection.
Thanks for the replies.
I rewired them from parallel to series and they sound just as good. Now I will worry a lot less about my amp. Thanks again guys.
Cal Weldon said:Did you happen to notice if you lost a wee bit at the top end?
No noticeable loss on the high end, but then I'm 52 years old and I might not be able to tell. I have used ear plugs through the years to protect my hearing when necessary, but still, old man age creeps up on you.
Hartono said:hopefully not , twice series voice coil resistance + twice inductance should present same roll off electrically.
Of course. Hadn't thought it all the way through. Thanks.
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