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      02-14-2011, 06:26 AM   #3
rude1978
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Drives: 320d m sport
Join Date: Dec 2010
Location: uk

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Quote:
Originally Posted by VP Electricity View Post
Hertz makes nice speakers. Not magic, but nice.

We had a guy here with a 1-series sold a Hertz tweeter/70mm mid/165mm midbass kit from Hertz. That kit works OK in some other cars, but it's totally the wrong kit for the BMWs in my opinion. The doors need to go as low as possible, and 500 hz is far too high a crossover filter point to hand off from the door mid to the underseat woofer.

If you have base audio, not HiFi nor Logic 7, then you have deck power going to door mounted mids and underseat woofers - 165mm woofers in 200mm frames.

You want to get 200mm woofers which will fit - Hertz makes a woofer called the Space 8 which will work - and you want a 4" 100mm mid in the door as well as a tweeter - all driven by a 4-channel amp for best results (You could probably use their Enegery 4" 100mm in the door on deck power, but you need an amp on the underseats). Hertz doesn't make a passive crossover filter to restrict that 8" to only lower bass, and so you need to restrict those woofers to their own amp channels with a crossiver filter onboard.

I know that the UK shops often have minimal demo capability - but can they refer you to anyone who's gotten these speakers installed? Which Hertz models are they recommending?
Im guessing for that price they will be the esk163l

VP, Do you think if you had a good sub in the boot/trunk it would make up for the high cross over point?
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