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      06-20-2020, 11:49 PM   #19
johnung
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Drives: 2015 BMW 335i x-Drive Auto
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Quote:
Originally Posted by max80 View Post
Quote:
Originally Posted by johnung View Post
Earthquake underseat subs. All the information is in the posts above

Install the MatchUp amp and Earthquakes. Then decide if you need any other speaker upgrades
I am looking at the Alpha one complete kit too. What do you think?

Best Regards
I've got the H/K system and I upgraded my underseat subs to the Earthquakes. I used a secondary amplifier to power just the Earthquakes.

With the Hifi system, the MatchUp amp would provide the same power to the Earthquakes so no secondary amplifier would be needed.

The Earthquakes were the missing link to the H/K system. They really completed the sound. My family and friends thought that I had replaced all of my speakers, instead of just the subs. That's why I'm suggesting that you do the MatchUp amplifier and Earthquakes first. They are the foundation. Then see how your system sounds. You may find, like I did, that the other speakers don't need expensive replacement.

Good luck!
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