Proper Kicker Key 200.4 & 500.1 Configuration (Crossovers, dip switches, etc)

BigHead · Oct 5, 2021

Gearing up to install a full Kicker Key 200.4/500.1 Setup in my 2021 F-150. Hoping to get some advice to properly configure the settings and dip switches on the amp prior to install and tuning the system.

Let me start by listing the components of the build:
Hertz CPK 690 Cento Pro 6x9 Components up Front (CP25 Tweeters in A-Pillar)
Hertz CPX 165 Cento Pro 6.5" Rear Coaxials
Will not be doing bi-amp mode, so the configuration will be 50w per channel (4 channel mode)
Key 500.1 will be running at 300w RMS @ 2ohm
2x Image Dynamics ID8 D2 V.4 8" Subs in a 1 cube box (.45 per driver after displacement)

Notes:
WinISD says the total box QTC is .624 and the FSc is 50.46 Hz for the enclosure
Frequency Response of the 6x9s is 35hz to 22.5k
Frequency Response of the 6.5' Coax is 45hz to 22k
If I interpret the tech data sheet on the ID8s the subs will play down to 20hz in .45 air space.

First up, the Key 200.4

Auto Turn on Set to DC-Offset.
Fader - Off or on?
Compression - ON? to protect the speakers right?
Bi-Amp Mode- OFF
Kicker EQ- ON
Time Delay - ON

What should I set the Hi-Pass filters to since the 6x9s will play down to 35hz? I don't want to lose mid-bass.... also should the Hi pass be different for the front and rear door speakers because they give you the option.

Next up the 500.1:

This one seems more tricky to me.

What would be the best way to set the Hi-Pass & Lo-Pass when its on a dial like this? Should I start at zero for both or at a pre-set position like noon or 2 o clock? And should I leave bass boost at zero since I will be using an attached bass knob?

Seriously thanks to anyone in advance that can help me getting these setup correctly.

BigHead · Oct 5, 2021

Response from Kicker support was: "Set the high pass on the KEY200.4 at 80 Hz. Set the low pass on the KEY500.1 at 80 Hz" - But wouldnt this be robbing me of bass frequencies in the door speakers since they can play down to 35, and 45hz respectively?

Response from HushCarAudio: "I leave the Hi-Pass Filters off on the door speakers, and 80hz for the sub."

miniSQ · Oct 5, 2021

Kicker is right....in fact i would do 80hz on the HP at 24db, and possibly 60 or 70 on the LP to the sub.

BigHead · Oct 5, 2021

Can you explain this a little for me? I dont understand if my door speakers can play down to 35hz why I wouldnt want them playing it. Wouldnt I at least want it set at 60hz instead of 80?

If it helps, the FS of the 6x9's is 58Hz

miniSQ · Oct 5, 2021

The sub is a sealed box, so do not set a HP on the sub. Set the LP to 80, and play around with that one to see if you notice a better kick a little lower or higher.

BigHead · Oct 5, 2021

Audiofrog recommends setting the Hi Pass on the midrange At or above the FS of the speaker. If the FS of the 6x9s is 58, wouldn't a Hi pass at 60hz be perfect?

then it says to set the Lo-Pass filter frequency at half an octave from the Hi-Pass frequency using this formula: LP Filter Frequency (Hi Pass Filter Frequency + ½ high pass filter frequency)/2

So if I set the Hi-Pass to 60hz, the Lo-Pass would be 45hz. If I set the Hi-Pass to 80Hz, the Lo-Pass would be 60hz. Also says to use 24db slopes, which luckily is what the kicker slopes are.

Source: Time Alignment Part 5: Putting it all together

miniSQ · Oct 5, 2021

BigHead said:
Audiofrog recommends setting the Hi Pass on the midrange At or above the FS of the speaker. If the FS of the 6x9s is 58, wouldn't a Hi pass at 60hz be perfect?

then it says to set the Lo-Pass filter frequency at half an octave from the Hi-Pass frequency using this formula: LP Filter Frequency (Hi Pass Filter Frequency + ½ high pass filter frequency)/2

So if I set the Hi-Pass to 60hz, the Lo-Pass would be 45hz. If I set the Hi-Pass to 80Hz, the Lo-Pass would be 60hz. Also says to use 24db slopes, which luckily is what the kicker slopes are.

Source: Time Alignment Part 5: Putting it all together

good luck

Thomasluke7899 · Oct 6, 2021

There is not right hard set in stone answer.
This is pretty much what everyone does man.
Set your xovers wherever you set them. Then have a listen.
If it's close to what you want. Leave it that way for a while. Listen. Pick out what you would like to improve.
Then redo it all over again but different. Sometimes all the way different. Sometimes...most of the time I would say we make small incremental changes.
The amps can be configured over and over man.
So do it however you want.
If you got to the audiofrog tuning guide and figured out numbers as above then you got it.
If something sounds good to you and someone tell you're wrong. It sucks. Just tell them it's because their ears are shaped funny....so no **** it sounds like that to you.

Jroo · Oct 7, 2021

Thomasluke7899 said:
There is not right hard set in stone answer.
This is pretty much what everyone does man.
Set your xovers wherever you set them. Then have a listen.
If it's close to what you want. Leave it that way for a while. Listen. Pick out what you would like to improve.
Then redo it all over again but different. Sometimes all the way different. Sometimes...most of the time I would say we make small incremental changes.
The amps can be configured over and over man.
So do it however you want.
If you got to the audiofrog tuning guide and figured out numbers as above then you got it.
If something sounds good to you and someone tell you're wrong. It sucks. Just tell them it's because their ears are shaped funny....so no **** it sounds like that to you.

this, you are going to have to play with it. As others have stated, I would typically say 80 hz is a pretty good starting point and work from there. If you think you can go lower you will know

Proper Kicker Key 200.4 & 500.1 Configuration (Crossovers, dip switches, etc)

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