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Neumann KH80 different sound from each speaker?

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Neumann KH80 different sound from each speaker?

Postby herecomesthemoon » Tue May 26, 2020 1:40 pm

So my KH80's came.

They sound great tho one thing I have noticed is there is a difference in sound between speakers. It is a frequency difference.

One seems to have more low end. I thought maybe was my hearing but I swapped both speakers around position-wise and still the same problem.

I only got them so before I decide to send one back I was wondering if anyone has encountered such?

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Re: Neumann KH80 different sound from each speaker?

Postby Mike Stranks » Tue May 26, 2020 1:48 pm

herecomesthemoon wrote:One seems to have more low end. I thought maybe was my hearing but I swapped both speakers around position-wise and still the same problem.


To be clear on this: Do you mean when you swapped them L-R the sound discrepancy changed sides?
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Re: Neumann KH80 different sound from each speaker?

Postby MOF » Tue May 26, 2020 1:58 pm

Have you checked the settings are identical?
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Re: Neumann KH80 different sound from each speaker?

Postby herecomesthemoon » Tue May 26, 2020 2:10 pm

Swapped left and right

Also moved the speakers from right position to left and vice versa.

Settings are identical.
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Re: Neumann KH80 different sound from each speaker?

Postby Hugh Robjohns » Tue May 26, 2020 2:16 pm

Have you also checked the software settings accessible from the app?

There is a factory reset that would be well worth trying:

To reset the KH 80 DSP internal controls to their factory default values:

Switch on the KH 80 DSP.

While the Logo is flashing during the boot up phase, move the SETTINGS switch up and
down repeatedly.

The Logo will then light up with a rosé flutter flash before reverting to white.

So look out for a 'rosé flutter flash' ! :lolno:
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Re: Neumann KH80 different sound from each speaker?

Postby Mike Shand » Tue May 26, 2020 2:17 pm

Yes, make sure the switch settings are the same. And make sure they are both set to local control, not network control. I know mike senior reported that his review samples had some strange settings in the DSP. Very unlikely, but local will eliminate it.

Then try swapping the signal cables to make sure you are feeding them with the same signal.


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Re: Neumann KH80 different sound from each speaker?

Postby herecomesthemoon » Tue May 26, 2020 2:36 pm

I don't have an IPAD so I can't use that app

Another I noticed were the Neumann light that lights up white.

One is very bright and the other is a lulled white
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Re: Neumann KH80 different sound from each speaker?

Postby Hugh Robjohns » Tue May 26, 2020 2:41 pm

herecomesthemoon wrote:One is very bright and the other is a lulled white

The brightness is configurable from the app. It would seem that that particular speaker has been setup to something other than the factory default at some point prior to your receiving it.

Try the reset procedure I mentioned previously.
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Re: Neumann KH80 different sound from each speaker?

Postby Music Wolf » Tue May 26, 2020 2:44 pm

From the manual the logo is 'dimmable via Neumann Control', so it looks as though some of the settings are different.
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Re: Neumann KH80 different sound from each speaker?

Postby blinddrew » Tue May 26, 2020 2:44 pm

The switches on the back don't have the most positive of actions, when I've made changes I've always moved them all the way to one extreme and then carefully back one notch at a time to the right place.
And as Mike says, make sure the left switch is set to one of the local control options.
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Re: Neumann KH80 different sound from each speaker?

Postby herecomesthemoon » Tue May 26, 2020 3:45 pm

When the speakers boot up the red light doesn't flash it just is red then turns white

How fast do I have to move the settings switch?
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Re: Neumann KH80 different sound from each speaker?

Postby Hugh Robjohns » Tue May 26, 2020 3:58 pm

I suspect they made a small change to the firmware after the book was written. I imagine you need to flip the settings switch back and forth while the light is showing red during the boot-up phase. Keep going until it either turns solid white (meaning it's ignoring you!), or does the rose flutter thing and then turns white (meaning it has loaded the default factory settings)!
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Re: Neumann KH80 different sound from each speaker?

Postby herecomesthemoon » Tue May 26, 2020 4:52 pm

Hugh Robjohns wrote:I suspect they made a small change to the firmware after the book was written. I imagine you need to flip the settings switch back and forth while the light is showing red during the boot-up phase. Keep going until it either turns solid white (meaning it's ignoring you!), or does the rose flutter thing and then turns white (meaning it has loaded the default factory settings)!

So I boot it. Flipping the switches. It does nothing and just stays at the dimmed white.

Contacted Neumann, nothing back yet.

These cost me well beyond my budget so I would send it back if this continues which I know might seem lame but for close to 900 quid I think such problems shouldn't be there.
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Re: Neumann KH80 different sound from each speaker?

Postby herecomesthemoon » Tue May 26, 2020 6:40 pm

How could I test the sound of the speakers correctly?

When swap the speakers I am still getting the sound slightly more to one speaker.

Example being- Kick more to my left ear/left speaker, when I swap left speaker to right side kick is more in my right ear/speaker.

The speaker that appears louder is also the speaker that has the dimmed light.

So it's hard to tell should I send both speakers back or just one? and which one at that
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Re: Neumann KH80 different sound from each speaker?

Postby blinddrew » Tue May 26, 2020 7:28 pm

Can you confirm the switch settings on the back of the monitors please? (And that they're both the same ;) ).
But at the moment I'd say sadly you are looking at a return, but see what Neumann say first.
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