New system, having a problem

[BrandonFox28]

Just had a new system installed in my 1999 Honda CRV. I'm running The following:

Polk DXi6501 components in front

Polk DXi651 coaxials in back

Alpine type S 12" sub

Alpine PDX-V9 amp

Sony 5000 head unit

The problem is that I am getting a tinny sound on high pitched guitar in rock music. No problems at all with hip hop or pop music. But the guitar just doesn't sound good when I'm at a relatively high volume. I'm totally new at this so any help is appreciated. It was installed by a friend of mine who works in car installation (but he's relatively new at it). Do I just need to let these speakers break in? Or is it an adjustment fix? Thank you all!

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[Jeffdachef 5,000+ posts]

are you using lossless or MP3?

 

[BrandonFox28]

I was using music that I had loaded to my phone so I suppose it was MP3. What would be considered lossless? Spotify?

 

[caterham09]

I was using music that I had loaded to my phone so I suppose it was MP3. What would be considered lossless? Spotify?

lossless is like flac or alac files

 

[BrandonFox28]

I was not using a lossless format.