mismatch of speaker impedance

[kapil kumar]

I have HTR 5940 Yamaha Hometheatre. The front pair of speakers are NS9830 whose impedance is 8 ohms and maximum power handling capacity is 220 watts. As we can play two set of front speakers A+B together, now I want to buy Wharfedale Diamond 8.4 speakers. The impedance of Wharfedale speakers is 6 ohms and power output is 150 Watts. I want to connect both Yamaha and Wharfedale speakers in front speakers output A and B and play them together. Will both of them produce the same sound level when played together or the different ohm level will result in different volume levels.

 

[croseiv]

I have HTR 5940 Yamaha Hometheatre. The front pair of speakers are NS9830 whose impedance is 8 ohms and maximum power handling capacity is 220 watts. As we can play two set of front speakers A+B together, now I want to buy Wharfedale Diamond 8.4 speakers. The impedance of Wharfedale speakers is 6 ohms and power output is 150 Watts. I want to connect both Yamaha and Wharfedale speakers in front speakers output A and B and play them together. Will both of them produce the same sound level when played together or the different ohm level will result in different volume levels.

What are the speaker's sensitivities? That will give you a better idea of whether or not they will be the same loudness. Lower senistivity speakers require more power to reach levels of higher sensitivity speakers.

 

[TLS Guy]

I have HTR 5940 Yamaha Hometheatre. The front pair of speakers are NS9830 whose impedance is 8 ohms and maximum power handling capacity is 220 watts. As we can play two set of front speakers A+B together, now I want to buy Wharfedale Diamond 8.4 speakers. The impedance of Wharfedale speakers is 6 ohms and power output is 150 Watts. I want to connect both Yamaha and Wharfedale speakers in front speakers output A and B and play them together. Will both of them produce the same sound level when played together or the different ohm level will result in different volume levels.

The first thing is that if you do that, you will have an impedance of 2.9 ohms, which will fry your Yamaha receiver.

If you could do this, which you can't, the six ohm speaker would consume 50% more power, but which would play louder would be determined by their respective sensitivities.

The next question is why on earth do you want two sets of front speakers?

 

[croseiv]

TLS Guy is right, also, I checked the rear of your recevier, and I don't think it was intended to run A+B fronts, it says A or B. So it may be difficult to do what you want. Best advice is have a look at your manual and see what it says.

 

[kapil kumar]

What are the speaker's sensitivities? That will give you a better idea of whether or not they will be the same loudness. Lower senistivity speakers require more power to reach levels of higher sensitivity speakers.

the sensitivity of Yamaha speakers is 89 db for 2.83 v at 1 m whereas the sensitivity of Wharfedale speakers is 86 db for 2.83 v at 1m.

 

[kapil kumar]

The first thing is that if you do that, you will have an impedance of 2.9 ohms, which will fry your Yamaha receiver.

If you could do this, which you can't, the six ohm speaker would consume 50% more power, but which would play louder would be determined by their respective sensitivities.

The next question is why on earth do you want two sets of front speakers?

my Yamaha speakers have week bass. Though I have a subwoofer of Whardedale, its frequency response is only upto 110 hz. But I have listened to Wharfedale Diamond Speakers and they give a truly tight bass. I wanted to play both of them together so as to compensate week bass of Yamaha speakers with strong bass of Wharfedale, while I play them at the same volume. I use my home theatre mainly for playing music.

 

[kapil kumar]

TLS Guy is right, also, I checked the rear of your recevier, and I don't think it was intended to run A+B fronts, it says A or B. So it may be difficult to do what you want. Best advice is have a look at your manual and see what it says.

Yamaha HTR 5940 does have outputs for two sets of front speakers. The mannual also says we can run them simultaneously. Both the sets will work when the buttons of both A and B are pressed.

 

[markw]

Yamaha HTR 5940 does have outputs for two sets of front speakers. The mannual also says we can run them simultaneously. Both the sets will work when the buttons of both A and B are pressed.

Well, knowing now what you do about their combined impedance, good luck and enjoy it while you can.

You may want to further explore your manual and this time absorb all of it, not just what you find convienent.