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Model Number A1707. Released June 2017, this MacBook Pro features Kaby Lake processors up to the 2.8 GHz quad-core Intel Core i7 processor with Turbo Boost up to 3.8 GHz.

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Left speaker is not the same as the right speaker output

I don't know if anyone else is the same like me or not who are using Touchbar version of 15" 2017, My left speaker sound output is not the same as the right speaker.

I tried Preferences Pane/Sound and trick the Balance of Left and right while playing the music. But, the output is not normal at Left Speaker. The right speaker can bring full of bass like surround sound. But, the left speaker can bring only treble sound. Neither the bass or the surround like the right one.

Am I only one who experiencing like that? Or was is because of the new MacBook Pro speaker system?

Answer this question I have this problem too

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Is this the same one that suffered a water spill;;?

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@mayer yep. But spill only happened on the right speaker. not the left one. And the right one is doing fine. I mean spill drop is only happened on the right side of the keyboard. And the left side is completely clean

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I have the identical problem in the reverse. I also have the MacBook Pro Touchbar version of 15" 2017. In my case it is the left internal speaker that has full dynamic range and the right that only has highs. It is almost as if it is configured for the left to be a mid-range speaker and the right a twitter.

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Had not a water spill but a single drop spill and on the left side of the laptop... right speaker won't work now. It's like it's muffled. &&^&^$^ Apple. Besides the screen being &&^&@@ up, now the speaker is &&^&@@ up too.

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I had the same problem with my 2015 and got it repaired before the warranty expired. This was a hardware issue as I had the same problem on Windows Bootcamp. Apple found no evidence of water damage or anything. Looking through forums online, a lot of people has had this problem, but Apple denies that there is something wrong with the Macbook lineup.

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I had the same issue. I backed up my Mac, reset it completely, reloaded software and went into System Preferences > Sound > Output > and then I moved the balance to the middle because it was automatically on left for some reason. Resetting may be more of a last resort-type thing but it worked for me!

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haha happened to me also, panicked abit. this is really odd why its defaulty set there. i can only imagine the hassle this would be like if a person is not the type to search online and find fixes

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I got my MacBook 2016 15” repaired TWICE. First time the battery needed replacing, the second time I took it out for being serviced I was experiencing the good old butterfly-keyboard issue. So the repair was free even if out of warranty. My whole topcase got replaced. So I also got new speakers. And now I’m experiencing the same issues as mentioned above.

I have experienced a loud pop on the right speaker that only does low frequency sounds. And my left speaker only does high frequency sounds. Balance is correct. This started after macOS Catalina update.

Really sad that I have so much trouble with a 3200 euro costing machine. The Apple experience is ruined for me. These lineups are real garbage.

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So it is not hardware connected issue?

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Brought my laptop to the service to get replacement. Actually, I’m pretty sure it’s an OS bug that leads to speaker getting torn apart (but I didn’t open my laptop, it’s just a guess of what happened after laptop woke up and left speaker popped loudly about 7 times)

https://discussions.apple.com/thread/796...

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A year passed, and the same speaker blew up again. Out of warranty this time :( Might order a replacement part from AliExpress and try to repair it myself

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I can’t believe this, but now the battery got swollen!

Top case got convex, and the lid didn’t close. Luckily, when the case was opened to replace the battery, top case geometry restored by itself.

But it was only 2 years old! Feels like this is a very unlucky laptop :(

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@glukki If the battery is swollen and there are no signs of tampering - Apple typically replaces the computer at the battery cost if it's within three years of the purchase date. I think the battery cost here would be around $200.

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Soon after that the power button and Touch ID stopped working. The right part of the Touch Bar is always glowing with plain white. What a mess!

The laptop was working in a clamshell mode most of the time. The keyboard, Touch Bar, power button, all the top case is plain virgin!

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I have the same problem on a 2013 MacBook Pro Retina 15” under Mojave : the right speaker is very low compared to the left, with only the low frequencies.

I just replaced both but got no difference

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I think I reached a conclusion, I too have the problem where one speaker is louder in my case it is the left one that is the loud one. I downloaded windows on boot camp. The sound is equally balanced. So I think it is some software bug

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My one is also 2013 MBP Retina 15", Catalina, got same problem too. On window 10, it's balance, but on OSX Catalina, right speaker is more bass, left speaker is more trebble. Let me know if you can fix on OSX. Thanks.

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did you ever find the fix?

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I’m having this problem as well except my situation is reversed — my right speaker’s volume is very low compared to the left’s. Tried resetting SMC and PRAM with no luck. Verified audio balance is in the middle. Replaced my right speaker with a “new” one to confirm it’s not a problem with the speaker itself. Moving my audio output balance over to the right is a hack that lets me enjoy me speakers at approximately the same volume again but this is obviously broken so I’m taking it to the Apple store tomorrow to see if they can diagnose the issue.

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What happened ???

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I have found that it is possible to fix an imbalance between speakers by loosening the screws at the back of the computer under the offending speaker. Play something, lay the laptop on its keyboard with the screen hanging over the table so that the back of the computer and the screws can be seen. loosen a screw at a time while listening to the sound. You may find quite a remarkable improvement ! Tighten them all up one at a time until the sound worsens again, then, loosen once more - or remove that screw totally. You could stick the screw in place - but loosened - with a drop of nail varnish. This a a temporary fix - but, it works for me until I can get a new machine. Replacing the speakers did not help by the way, but my screw trick - found while I did the replacement - did.

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I have a MacBook Pro 13” with Touch Bar from 2017 with the same problem. The only difference is that it happened after they changed the top case because of a problem with the keypad… I understand they changed speakers as well so it might be a problem with the new speakers. I have also updated the Mac to Catalina. I’m going to take it to the store again. Did you find a way to fix your Mac?

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This is due to subwoofer or right speaker. Design issue.

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The designs are the same left to right, a straight mirror image as you can see here Speakers

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@danj The pins are different.

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@debbiemason8854 - Yes very true,

My reply was to ante's comment and I stated they are mirror of each other so you can't use the left speaker in the right speakers hollow!

The number of pins is also different! As you noted.

Thats because the left speaker also holds the Hall sensor.

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@danj Interesting! What is the Hall sensor?

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Same as mine.. The left speaker was louder than the right speaker. I thought the speaker was fault by just change the new speaker still the same..

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I got this problem..

this is not hardware issue.. it is system issue..

What i have done is i insert different ssd and format it.. the problem solved.. i think it reset the system during i install new os in new ssd..

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Yep thats step zero to check the OS for bugs, before someone starts soldering onboard.

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Hi! I have the same issue on my Macbook Pro 2017, 15 inches, it passed seven months after Apple had changed my keyboard, that is, tope case due to the well-known issue. So there was no warranty, I took it to the service to let them see what happened they just said - something is wrong, we can fix it by changing the whole top case again but I need to pay this time, so I refused. Another man said just wait till the issue with the keyboard would appear in 3-4 years again and thus it will be changed for free :D So, just tolerating it to the moment. So it is a hardware issue, as many others lately with the last generation’s macbooks. We need just to accept they are not perfect, man.

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And what was the issue with the keyboard? I’d be happy to use the same trick XD

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I JUST replaced my right speaker today (A1707 15" MBP w/ Touchbar). As I was documenting the process with photos, I noticed the right speaker had a different sized pin connector to the logicboard than the left speaker.

Block Image

There are 6 pins on the right speaker and only 4 pins on the left one (see the yellow zoom circles on the attached image).

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Perhaps this is why the sound output is different. I'm guessing Apple designed them to be "balanced" somehow when paired together without pulling too much power? (That's just my guess...)

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Not completely idea, but if you go to system preference / sound you can just balance the left/right speakers while listening to a song such that the audio is centered in your listening space. Then everything you play will be balanced.

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I have found that it is possible to fix an imbalance between speakers by loosening the screws at the back of the computer under the offending speaker. Play something, lay the laptop on its keyboard with the screen hanging over the table so that the back of the computer and the screws can be seen. loosen a screw at a time while listening to the sound. You may find quite a remarkable improvement ! Tighten them all up one at a time until the sound worsens again, then, loosen once more - or remove that screw totally. You could stick the screw in place - but loosened - with a drop of nail varnish. This a a temporary fix - but, it works for me until I can get a new machine. Replacing the speakers did not help by the way, but my screw trick - found while I did the replacement - did.

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Thiha Aung will be eternally grateful.
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