[HappyDeadEyes]

In my 2017 M240i the HK system is very underwhelming. What are some options to upgrade? I don’t want to spend crazy amount of money so what’s my best bang for buck? Someone said Bavsound ghost 4 ohm subwoofers would help a lot, especially since it lacks so much base.

[MarcoZandrini]

First step is to replace the front speakers. Focal is a goof option though older Etons work fine. Also, you can tune the factory amp by updating the "profile."

[HappyDeadEyes]

Originally Posted by MarcoZandrini

First step is to replace the front speakers. Focal is a goof option though older Etons work fine. Also, you can tune the factory amp by updating the "profile."

Really? Everyone told me to do the subs first. But to be honest I thought the highs and miss weren’t stellar either so I’ll look into it.

[ChubbyWilly]

I have a F23 and HK is especially terrible on the verts. I was able to get it sounding good by upgrading the amp with a Matchup 8DSP amp, bavsound mids and tweets, bavsound 2ohm ghost subs and of course sound dampening materials on doors. I also tuned the system using a UMIK1 microphone.

[MarcoZandrini]

Originally Posted by HappyDeadEyes

Really? Everyone told me to do the subs first. But to be honest I thought the highs and miss weren’t stellar either so I’ll look into it.

The factory subs aren't all that bad but remember that they are buried under the seats. The HK system sounds crappy because the mids and tweeters are crappy. The weight of a mid speaker is ridiculous because the magnet is tiny.

I also replaced the rear speakers with JL components. And I replaced the factory amp with a Audiotec-Fisher amp. The company's amps are tunable via it's free software and a USB cable.