Are speakers connected to amp correctly?

If I've understood you correctly, you have, like many others, been confused by the fact that Naim amps have the the L channel sockets on the R, and the R channel sockets on the L, as you face the front. So the cables usually cross over to go to the correct spearers.

Pretend you are setting up pro audio gear at a gig, and put the amp on the rack backwards, and everything will make more sense  

It's left speaker to left channel and right speaker to right channel. As Chris says.

best

David

Play something familiar with a clear l/r split. I use It's Late by Queen as it's ok to let it go all the way to the end, and I know that the opening guitar chord starts on the left and its sibling finishes on the right. But yes, when viewed from the front the o/p nearest to the r/h edge is the left speaker, and the one nearer to the centre of the amp is the right.

With Naim CH1 = Left channel, CH2 = Right channel.  Be sure that the + and - connections are correct at both ends.

Richard Dane posted:

With Naim CH1 = Left channel, CH2 = Right channel.  Be sure that the + and - connections are correct at both ends.

That was always fun with a pair of NAP135s. 

So long as you have the positive and neg connected properly,it should be easy to find if the left and right are correct by using the balance control. Most (?),certainly newer naim pre-amps have balance control - even the 202. Just move the balance to one side i.e. left and the sound should switch to that speaker.On the 202 - controlled from the remote, the volume led will flash when centered.

So, I think I now understand, but just to clarify:

           NAP200

         ch2 right           ch1 left

Left Speaker          Right Speaker

ch2 right connects to Left Speaker (as you face the front)?

ch1 left connects to Right speaker (as you face the front)?

So what your saying is that if you stand behind the Amp and speakers (so that you are looking at the back of each), then Ch1 - Left channel (nearest to the IEC mains socket) connects to the back of the right speaker?

Would having Ch1 - Left channel (nearest to the IEC mains socket) connected to the left speaker have cause any damage (given that phase is correct)?

Rotifer217 posted:

So what your saying is that if you stand behind the Amp and speakers (so that you are looking at the back of each), then Ch1 - Left channel (nearest to the IEC mains socket) connects to the back of the right speaker?

Would having Ch1 - Left channel (nearest to the IEC mains socket) connected to the left speaker have cause any damage (given that phase is correct)?

I don't know why this is so difficult. You connect Ch 1 left to the speaker which is on the left if you are sitting in your listening position and Ch2 right goes to the speaker which is on the right if you are sitting in your listening position. The left and right labels on the NAP200 refer to the speaker position when you are sitting in your listening seat.

You should also make sure that the + and - connections are consistent between the two speakers but it really doesn't matter which way round you connect + and - so long as it is the same on both sides.

No you can't do any damage whichever way round you connect them. Just don't short the + and - together, especially not if you are driving music into the loudspeakers.

best

David

David Hendon posted:

I don't know why this is so difficult.

Likewise, I don't know why such a post has garnered 10 prior responses. The 200 is clearly labeled left and right. Some folks are best left to their own devices.

Rotifer217 posted:

So what your saying is that if you stand behind the Amp and speakers (so that you are looking at the back of each), then Ch1 - Left channel (nearest to the IEC mains socket) connects to the back of the right speaker?

Would having Ch1 - Left channel (nearest to the IEC mains socket) connected to the left speaker have cause any damage (given that phase is correct)?

When you are listening to your music the left speaker is on the left. Plug the wire for that speaker into the sockets on the amplifier that say ‘ch1 - left’. That’s all there is to it. 

Ps. If you have your amp between the speakers you will then say ‘but this means that the speaker wires cross each other behind the amp’, to which I would say ‘yes, they do’. It’s been this way since the 70s. 

Interesting comments that had me checking my set up - all correct when my 250DR is connected to the speakers. However, the 250DR is connected to my Nova and if/when I disconnect the it from the Nova and plug the speaker leads directly into the Nova I was just fitting the leads in the same order as the 250DR. Suprisingly, when I checked just now I found the channels are juxtaposed on the Nova. So looking from the rear of the units with the 250DR the left channel is on the left and the right channel on the right but with the Nova the right channel is on the left and the left channel on the right! Perhaps it is to help new Naim owners so when they look from the front of the amp the left channel is on their left etc.

Is there a balance control on the Nova? I haven’t found one yet but it may be buried in the set up menu

Bob

Shropshire Hills posted:

 

Is there a balance control on the Nova? I haven’t found one yet but it may be buried in the set up menu

Bob

Hi Bob, in the IOS app the balance control is under Setting > Audio Settings, and there is a slider.

Many thanks - that was quick

Cheers

Bob

"You should also make sure that the + and - connections are consistent between the two speakers but it really doesn't matter which way round you connect + and - so long as it is the same on both sides."

Sorry, that is not correct. + and - should be connected right, otherwise the membrane of the speaker swings in the wrong direction and the sound is duffuse.

what different does it make if left becomes right and right becomes left? maybe in a classic orchestra only? 

just asking out of ignorance

christoph posted:

"You should also make sure that the + and - connections are consistent between the two speakers but it really doesn't matter which way round you connect + and - so long as it is the same on both sides."

Sorry, that is not correct. + and - should be connected right, otherwise the membrane of the speaker swings in the wrong direction and the sound is duffuse.

 

Sorry that is complete total nonsense!!

i'm beginnings no to think this whole thread is a wind up.

Emre posted:

what different does it make if left becomes right and right becomes left? maybe in a classic orchestra only? 

just asking out of ignorance

The reversed image may not be an issue if accuracy of imaging is of no interest - however I’ve no idea if it does anything odd with the other two dimensions of the ilusionary image.

In the case of Deep Purple, the odd reversal from the audience point of view noted in a recent thread, which seem to have been mixed from the band’s perspective, would be corrected!

David Hendon posted:

christoph posted:

"You should also make sure that the + and - connections are consistent between the two speakers but it really doesn't matter which way round you connect + and - so long as it is the same on both sides."

Sorry, that is not correct. + and - should be connected right, otherwise the membrane of the speaker swings in the wrong direction and the sound is duffuse.

 

Sorry that is complete total nonsense!!

i'm beginnings no to think this whole thread is a wind up.

you can test it with a battery.

https://www.techwalla.com/arti...rse-my-speaker-wires

christoph posted:

"You should also make sure that the + and - connections are consistent between the two speakers but it really doesn't matter which way round you connect + and - so long as it is the same on both sides."

Sorry, that is not correct. + and - should be connected right, otherwise the membrane of the speaker swings in the wrong direction and the sound is duffuse.

 

As long as both channels are connected the same the ‘polarity’ would likely be undetectable. In absolute terms it does mean the first impulse of a bass drum, which if you are in front of the drum starts with a positive pressure, would be reversed if connected the wrong way round - however that is assuming that absolute phase has been preserved through the whole recording and replay chain, whic may not necessarily be the case.

This is quite different from having one channel reversed in polarity compared to the other (i.e one with its ‘polarity’ the opposite way round), when at best it may create a diffuse effect, and often lack bass due to cancellation, depending on speaker placement. This is the out of phase state referred to in the link posted above.

christoph posted:

"You should also make sure that the + and - connections are consistent between the two speakers but it really doesn't matter which way round you connect + and - so long as it is the same on both sides."

Sorry, that is not correct. + and - should be connected right, otherwise the membrane of the speaker swings in the wrong direction and the sound is duffuse.

 

Sorry, i was wrong. what i said only matters if one speaker is out of phase. christoph

Emre posted:

what different does it make if left becomes right and right becomes left? maybe in a classic orchestra only? 

just asking out of ignorance

In rock & pop it's more usual for any off-centre effects to originate from the left and if there is movement or an echo effect, to end on the right. It ties in with our norm of reading from left to right. And the enormous jarring of hearing something that's been always come out of one speaker suddenly emerging from the wrong side, is just wrong. Hawkwind's Silver Machine needs the synth that becomes the sound of space wind to originate on the left.

Knowing that something is wrong makes it wrong. It just does.

ChrisR_EPL posted:

Emre posted:

what different does it make if left becomes right and right becomes left? maybe in a classic orchestra only? 

just asking out of ignorance

In rock & pop it's more usual for any off-centre effects to originate from the left and if there is movement or an echo effect, to end on the right. It ties in with our norm of reading from left to right. And the enormous jarring of hearing something that's been always come out of one speaker suddenly emerging from the wrong side, is just wrong. Hawkwind's Silver Machine needs the synth that becomes the sound of space wind to originate on the left.

Knowing that something is wrong makes it wrong. It just does.

so if you are arabic rock lover the sound might sound " wrong " ?