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Multi-Way Conventional loudspeakers with crossovers

Crossover question about KEF KAR 160Qs
Crossover question about KEF KAR 160Qs
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Old 13th November 2013, 09:09 PM   #1
Absolution is offline Absolution
diyAudio Member
Join Date: Nov 2013
Location: Utah
Question Crossover question about KEF KAR 160Qs

Hi all,

I recently came across some KEF KAR 160Qs (my dad had them in box for 15 years). I do not have the KX3 crossovers. I hooked them up and they sound pretty good despite not having the crossovers. I am a bit new to car audio, but I want to use these in a system I am planning to make.

Does anyone have a suggestion on an alternative crossover I could use? Here are the specs I was able to find:

Low pass: 70-150Hz
High pass: 2.5kHz

Crossover points: 2.5/3.3kHz AT 12 DB/OCT

Power handling: 150W

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Old 13th November 2013, 09:21 PM   #2
sreten is offline sreten  United Kingdom
Join Date: Nov 2003
Location: Brighton UK

From what I can tell they are the recommended x/o settings
for car amplifiers with active x/o's. Its quite reasonable that
the treble high pass is set a little higher than mid low pass.

rgds, sreten.
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Old 13th November 2013, 10:01 PM   #3
Pallas is offline Pallas  Pakistan
diyAudio Member
Join Date: Aug 2004
Note that the KX-3 was used for two systems, one with 6.5" midbasses and one with 5.25" midbasses. (It may have also been used for the ".2" or separate-driver variants, as well as the "Q" or concentric variants.)

2.5kHz, 4th order (24dB/oct) is I think where I ended up with mine.

And congrats! You managed to stumble on some of the finest drive units ever marketed for car-fi. One word of caution: the tweeters are a bit fragile. If you run them active I highly recommend putting a fuse in front of them, or a lightbulb as Andrew Jones & Co did on the KX-3 passive unit.
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Old 29th November 2013, 09:23 PM   #4
sulla1234 is offline sulla1234  United States
diyAudio Member
Join Date: Jan 2012
Default KX3 crossovers

I have a pair. I'd be willing to sell them. Those are amazing drivers. I have the 160's in my 350z right now. They came with two pairs of KX's, and of course, I only needed one. My email is kostroske14@gmail.com. I'd take $90 plus shipping for them. Let me know.
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