Easiest way would be to just take the trim off and take a look Then you are absolutely certain about what you got in your car. Also don't forget to take measurements before and after so you'll know if you actually achieve your goal 👍

 

Thanks for the response, but I guess my point is I'm not the most mechanically inclined and don't want to be messing with my $68,000 car so I am going to be getting the speakers professionally installed. I want to avoid paying to take my car apart, look inside, put it all back together again, and then ordering the speakers and taking the car back apart again to install them. My audio guys can't find any information on the speakers either so I was hoping someone else has done a speaker swap and see what they used.

 

My grandmother used to say; why have a dog and bark yourself. Just let the professional installers do their job. If they don't know, I wouldn't use them nor call them professionals in their job.

But make sure they take measurements before and after, I'll follow with interest but unless you listen to this...

What is far more important than the paper specifications of the speakers is the mechanical considerations. You'll be extremely limited as to what you'll be able to fit in the factory locations without heavily modifying the car. OEM speakers tend to be much smaller than aftermarket ones.

I'm very skeptical that it objectively makes a material difference.

 

It's difficult to see how you can get the information you'll need (assuming not available online) without dismantling the speakers given that all dimensions and fixing locations will be needed. I'm also not sure that the whole exercise will be worth it and that while it might change the sound there's no guarantee that it will improve it. The most important determinant of sound quality is the quality of the source. The Dirac Unison acoustic treatment will have been configured for the existing speakers therefore substituting them, even with higher quality units with better frequency and phase responses, lower distortion etc. might result in an uneven response that cannot be compensated for.

On the other hand I could be grossly overestimating the quality of the stock units.

 

I tend to agree, and my guess is that the speakers are not the biggest issue. There is some DSP going on that as you say may interfere with whatever speaker upgrade is attempted. The DSP combined with the EQ will result in a sound that works for some people and types of music, but not for others, so without taking control of the whole system, it will be difficult to move the sound quality in a particular direction.

 

I appreciate the responses, but I will be replacing the speakers. I am really only looking for responses from people who actually know the technical data on the speakers. I have replaced the speakers in nearly all my other cars (aside from my S60 which I'll come back to) and every time it has massively improved sound quality. I have 2 issues with the current speakers. The first is the lack of clarity in the mid-range when listening to some genres of music. I listen to many genres and have very extensively tuned my EQ to be a good balance between all of them, but for some songs no matter how I tune the EQ, they still have really muddy mids. I know it's not the source or the recording because it's a song I've heard countless times on high end sound systems, and I have tried multiple sources. I know my car will never sound THAT good, but the speakers that were in my 2014 Volvo S60 sounded way more clear and accurate than my P2. The other issue is I have now blown the dash speaker 3 times and a door speaker once. Luckily it's covered under warranty, but it's a pain to bring it back to the dealership every other month to get it replaced. I have installed dual 12" subwoofers in the trunk to help take a little bit of the load off the other speakers (and because it's awesome) but they continue to blow. Yes I like listening to music loud. Has anyone else changed out their speakers? In nearly 2 years I figure someone has got to have done it by now.

 

The other issue is I have now blown the dash speaker 3 times and a door speaker once. Luckily it's covered under warranty, but it's a pain to bring it back to the dealership every other month to get it replaced

I don't even know how you've managed this. The system doesn't clip even at full volume and it has a very aggressive limiter.

 

According to the website Polestar 2 car audio system | Polestar UK

"There are full-range 150 mm speakers in each rear door. Mid-range 100 mm speakers in each front door. 19 mm tweeters in each front roof pillar. A full-range 100 mm speaker in the dash. And a 200 mm air woofer under the bonnet."

"The High Performance Audio system pumps 250 watts of power through eight speakers." This may be where your problem lies given that 250W is likely to be the sum of all channels rather than per channel (blame the marketing department for this spin). Listening at your chosen levels may push the amp (~30W/channel) into clipping with high energy square wave like distortion frying the speakers. Adding (presumably active) subwoofers may help by offloading the car's amplifier rather than sparing the speaker low frequency energy which will probably have been filtered out anyway. Several people have noticed that the centre speaker is significantly louder which will make it more vulnerable to high level clipped waveforms.

So that's another reason why I still doubt that upgrading your speakers will solve your problems but I'd be interested in hearing how you get on and, in the spirit of this forum, please share pictures!

 

There is not a lot of information. It looks like there is more information about the sound system in the cars with no HK system.
Polestar 2 Harman Kardon audio | Polestar US this is the link from Polestar USA, it does not specify the size of the speakers just the number and watts. If you take the high performance audio specs as reference for sizing, the mid-range speakers in the front doors are 4", the full range in the the dash is 4", and the full-range in the back doors are 6", the twitters are 3/4" in the front pillars. The air subwoofer under the hood is 8". Once I get mine (with high performance audio, non KH) I will be swapping the speakers myself. I read on a Volvo XC40 about a guy that use Audison prima speakers all around using the same amplifier on a non Hk system. I will be interested on what you ending using, please keep us posted.

 

What is far more important than the paper specifications of the speakers is the mechanical considerations. You'll be extremely limited as to what you'll be able to fit in the factory locations without heavily modifying the car. OEM speakers tend to be much smaller than aftermarket ones.

If someone here replied with a list of speakers and the power ratings, that would still be entirely useless to you.

As you're not doing the work yourself, your best bet would to take the car to the installer you're planning on using and let them advise you?

 

Why not just get your Audio guys to check what is required, eg they take apart the existing set up, check sizes, ratings etc and order new ones to suit you and the car, isn't that their job after all? they are the specialists!

 

I can definitely have my audio guys figure it out, and I've already talked to them, but they cannot find any information on it either. They can take the car apart and measure everything and all that, but that costs money. I am trying to avoid unnecessary expenses. If someone happened to know the specs then I can avoid paying that labor, but I guess I'm going to have to if nobody else knows the specs.

 

I think it's mostly just that nobody's really done a speaker replacement on the system yet. Despite some complaints I think most people seem pretty happy with the HK audio (myself included) and I'm someone who gets pretty fussy about my in-car audio; to the extent that I paid a huge chunk extra for the "Enhanced Premium Sound" in my E90 M3. Was worth every penny in my opinion but some people looked at me weird...

Good luck though and if you can please post any data your guys can find from their measurements. Your sacrifice will be appreciated