Stereosound with 4 speakers.

[M. Mulder]

Hello,

I have a Panasonic SA-XR55 receiver and I want to get a stereo signal on my surroundspeakers.

When I play a CD the music is heard from the Front speakers (A-speaker), but I want it also on mij 2 surrouns speakers.

I thougt when I make an extra cable between the output of the Frontspeaker B (additional pair of frontspeakeroutput) I van easily switch the B speakers to go on together with teh other front speakers (Speaker A).

But when I turn the volume higher suddenly the receiver displays "overload" and the receiver is turned out.

Als when I listen to a DTS 5.1 film and push the speaker B button to go out. It also gives an overload when I set the volume louder.

How is that possible?

Maybe the only solution is an audioswitch.

Then I have to connect the left and right surroundspeaker output into the switch (+ and -) ann d the output from the Front speaker B to the switch.

The switch has to got two outputs for the 2 surroundspeakers.

So when I listen to a CD in stereo I switch, so the only output to the surroundspeaker will be the output from the Front speakers B of the receiver .

When I listen to a DTS 5.1 film I switch again and it will cut off the Frontspeaker B stream an pass through the signal from the receiveroutput for surround speakers.


I'll hope you folks understand me


Kind regards,


Machiel Mulder

 

[M. Mulder]

It's called a Speaker Selector:

I found one from Russound (AB-2.2)

http://www.russound.com/ab2.htm#

Will the quality be still the same ?

 

[ruadmaa]

Easy To Correct Problem

Hello,

I have a Panasonic SA-XR55 receiver and I want to get a stereo signal on my surroundspeakers.

When I play a CD the music is heard from the Front speakers (A-speaker), but I want it also on mij 2 surrouns speakers.

I thougt when I make an extra cable between the output of the Frontspeaker B (additional pair of frontspeakeroutput) I van easily switch the B speakers to go on together with teh other front speakers (Speaker A).

But when I turn the volume higher suddenly the receiver displays "overload" and the receiver is turned out.

Als when I listen to a DTS 5.1 film and push the speaker B button to go out. It also gives an overload when I set the volume louder.

How is that possible?

Maybe the only solution is an audioswitch.

Then I have to connect the left and right surroundspeaker output into the switch (+ and -) ann d the output from the Front speaker B to the switch.

The switch has to got two outputs for the 2 surroundspeakers.

So when I listen to a CD in stereo I switch, so the only output to the surroundspeaker will be the output from the Front speakers B of the receiver .

When I listen to a DTS 5.1 film I switch again and it will cut off the Frontspeaker B stream an pass through the signal from the receiveroutput for surround speakers.


I'll hope you folks understand me


Kind regards,


Machiel Mulder

All you have to do is use the analog inputs of the receiver (not the digital). If you have another free input anywhere on the receiver simply run the analog cables from the cd/dvd player to the receiver and push neo6. Sound will come from all your speakers. Very simple.

 

[M. Mulder]

Hee ruadmaa,

I have tried this configuration and it works fine. Do I have 5 (because I have 2 front, 2 rear and 1 center) separate analoog outputs on my speakers with Neo (official DTS NEO:6)?

Does Neo split the channels with the help of software? (added: It's still a simulation and I hear some artifacts, 4 analog channels sounds much better)

I have the feeling that the sound is not the same as when I used the surround speakers on the channel B output.

But that can also be the cause of a very cheap analog cable. Normal I use Oehlbach cables. I hope that's the case.


Machiel

 

[jaxvon]

Hi,

The problem you're having is that you're trying to use A and B at the same time. Receivers are designed to use either A OR B, not both at the same time. When you use the two simultaneously, you are trying to push too low of an impedance (probably 4 ohms if your speakers are 8 ohms nominally). Your receiver is only rated to handle 6 or 8 ohm speakers, nothing lower. What this means is that you cannot run both A and B channels at the same time as you are now. If you want multi-channel stereo, you should look to use a surround mode (yes, it's digitally processed sound) like Neo6 or a multi-channel stereo setting. You should change the configuration to hook up your surrounds to their proper binding posts on the rear of the machine.

 

[M. Mulder]

All my speakers are 4...8 ohm.

I can use A and B at the same time, because I have bi-amping. I also can set it on BI-WIRE so channel A (front speakers) gets the low frequentie and channel B (surround speakers) the High frequentie.

I think the "bridge" that I have made between the B channel output to the surround channel output gives an 'overload' effect.

My receiver is rated to handle 6..16 ohm impedance.

What do you mean by:
you are trying to push too low of an impedance

 

[ruadmaa]

Neo6

Hee ruadmaa,

I have tried this configuration and it works fine. Do I have 5 (because I have 2 front, 2 rear and 1 center) separate analoog outputs on my speakers with Neo (official DTS NEO:6)?

Does Neo split the channels with the help of software? (added: It's still a simulation and I hear some artifacts, 4 analog channels sounds much better)

I have the feeling that the sound is not the same as when I used the surround speakers on the channel B output.

But that can also be the cause of a very cheap analog cable. Normal I use Oehlbach cables. I hope that's the case.


Machiel

Yes neo6 is a digital soundfield. It should work just fine with 5 speakers. Under no circumstances run both A & B speakers at the same time. Whatever cables you are using to connect your receiver should be just fine. You should not be hearing artifacts of any kind when using neo6. Connect your speakers correctly to the rear of your receiver.

 

[jaxvon]

All my speakers are 4...8 ohm.

I can use A and B at the same time, because I have bi-amping. I also can set it on BI-WIRE so channel A (front speakers) gets the low frequentie and channel B (surround speakers) the High frequentie.

I think the "bridge" that I have made between the B channel output to the surround channel output gives an 'overload' effect.

My receiver is rated to handle 6..16 ohm impedance.

What do you mean by:
you are trying to push too low of an impedance

When you connect the speakers as you have, you are connecting them in parallel, meaning that the impedance the amp section for A/B sees is now 4 ohms. A lower impedance means that the amplifier must crank out more current to reach the same power output levels, a current level it isn't designed to handle. You can bi-wire or bi-amp because those both go to the same speaker, so a higher impedance is maintained.

 

[M. Mulder]

Under no circumstances run both A & B speakers at the same time.

Hi,

I can use BI-WIRING, so the receiver activates two amplifiers per channel.

 

[M. Mulder]

When you connect the speakers as you have, you are connecting them in parallel, meaning that the impedance the amp section for A/B sees is now 4 ohms. A lower impedance means that the amplifier must crank out more current to reach the same power output levels, a current level it isn't designed to handle. You can bi-wire or bi-amp because those both go to the same speaker, so a higher impedance is maintained.

The 2 frontspeakers are connected to channel A en the rear to channel B. Ther's no problem now anymore. So the speaker selector is the best option I think.

I can also use dual-amp in stead of bi-amp (bi-amp goes together with bi-wiring). Does this make a different with the maintaning of the impedance?

Last questeion:

Why does the receiver give an overload when I connect the channel B output with the surround output and doesn't give an overload when I directle connect the rearspeakers to the channel B front output?