Question on Speaker Output and combination ? Seems a little technical.

[nnagabhu]

Hi Folks,

I came across this situation when I was planning to build my Speaker system for my AV Receiver.
The Amplifier Specs given in my Onkyo TX-SR506 Receiver says -
75W/channel @ 8 ohm

By this I understand that Per Channel, I can use a Driver which is 75W @ 8 ohm resistance.

If I use a Single Driver say a Full Range Driver.. it is easy to assume I can use a 75W @ 8 ohm.

What if I intend to use 2 Drivers (Tweeter + Woofer) ie a 2 way (or in a 3way situation), for a channel.

a) Should both the Drivers be 75w @ 8ohm each or Is there any Ratio % combination/calculation which should be done to split the 75W between the Tweeter and Woofer to achieve the 75w output?

b) What would be the ideal Driver Output in watts that can keep both the Amp and Speaker safe and sound.

Looks like a dumb question for the experts out there.. Please resolve my doubt..

 

[jagdish_p]

Hi Folks,

By this I understand that Per Channel, I can use a Driver which is 75W @ 8 ohm resistance.

If I use a Single Driver say a Full Range Driver.. it is easy to assume I can use a 75W @ 8 ohm.

What if I intend to use 2 Drivers (Tweeter + Woofer) ie a 2 way (or in a 3way situation), for a channel.

a) Should both the Drivers be 75w @ 8ohm each or Is there any Ratio % combination/calculation which should be done to split the 75W between the Tweeter and Woofer to achieve the 75w output?

b) What would be the ideal Driver Output in watts that can keep both the Amp and Speaker safe and sound.

Looks like a dumb question for the experts out there.. Please resolve my doubt..

The input from the Amp or AVR gets split between the Tweeter, Woofer, Mid range drivers automatically by the crossover circuit built in the speaker (For two way/ Three way) . You do not have to feed separate signals to each driver unless you are attempting Bi Amping.

Usually any speaker will give a specification of Min and Max Amp power.
If you select an Amp capacity which is the average of the Max and Min it will suffice. This is only a thumb rule and you can go higher or lower depending on your listening preferences.

 

[nnagabhu]

The input from the Amp or AVR gets split between the Tweeter, Woofer, Mid range drivers automatically by the crossover circuit built in the speaker (For two way/ Three way) . You do not have to feed separate signals to each driver unless you are attempting Bi Amping.

Usually any speaker will give a specification of Min and Max Amp power.
If you select an Amp capacity which is the average of the Max and Min it will suffice. This is only a thumb rule and you can go higher or lower depending on your listening preferences.

Thanks for your inputs..