Should I upgrade the stock speakers with Alpines?

I read on the forum here some Alpine SPS-410 is a great speaker and changing out the speakers in 4 doors would improve sound quality (I got the standard sound package).

I called some car audio shops for installation of these speakers (got them the speakers from Internet), and one of the places said it won't make a difference and if I want better sound I should also put a better amp.

He said either keep it stock or change it all.

Is he trying to sell me stuff or give me good advice?

I too have the same question. I bought the Premium Sound package which should have an amp more than big enough. There are other threads on this topic here but they are all for the previous body style. I have heard that replacing the four door mounted speakers with the Alpines brings the car closer to the Harmon Kardon sound we thought the premium system would be like. However, have you heard that the Alpine 410s actually fit in the new F25 door panels? If they do, I have heard that they will sound great with the existing amp and overall system and are the best initial mod you can do for you car if you love audio. Would love to know. If so... I plan on doing this ASAP.

I talked with another car audio guy and he said Alpines require higher RMS then stock speakers therefore without upgrading the amp they won't offer much difference in sound quality.

He did recommend this subwoofer as a big improvement but I don't know how I feel about losing trunk space.

This type of response is classic salesman blather. "More RMS" seems to mean less efficient. This just means "not as loud". If volume was the only criteria, then sure, skip it, especially if this is all you are after in an upgrade. If quality of sound, ie flatness, smoothness, extension of frequency range, distortion are important, the change may still be worthwhile.

Car audio salesmen sell a lot of gear to young men looking to pound out the dBs and sound quality is secondary or irrelevant to their target market. Find a new salesman, frankly. Unless volume is actually what you are after. If so, you should have purchased the better stereo, or are willing to rip out everything and give him a lot of cash. The BMW stereos are challenging and expensive to aftermarket upgrade.

Originally Posted by bsarac

I talked with another car audio guy and he said Alpines require higher RMS then stock speakers therefore without upgrading the amp they won't offer much difference in sound quality.

He did recommend this subwoofer as a big improvement but I don't know how I feel about losing trunk space.

frankly, that salesman is horse raddish

So... Any news if the Alpines will fit in the X25 body style door panels? I've heard the Alpines alone make a difference.

Your car Audio guy is partially right, but mostly trying to up sells. Yes having alpines will be a aural improvement over the stock, which are probably designed to be cheap paper cones. However since I don't see most will not be competing in audio competitions, thus you don't need any amp changes to get massive gains. The sub is unecessary, since your not trying to get the ghetto fab on.

My thing is if you really need audio improvements. Invest in replacing all stock speakers with bsw. If you have subs under the seats, get some stealth subs, and call it a day. The amp change is going to be difficult since, the system is not analog, or as my dd, built on the old system, where you mod the head unit, speakers and add in components based on need. This system is based on fiber optics and digital processing, so the options are limited to oem. (ie, premium sound and individual sound)

Edit: depending on availability from bsw

Yeah, BSW hasn't released them for the F25 yet though.