Crossover guidance - AF GB15, SI TM65km3, RM-12 - Car Audio | DiyMobileAudio.com | Car Stereo Forum

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Old 07-03-2019   #1
 
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Default Crossover guidance - AF GB15, SI TM65km3, RM-12

Can you guys give me some opinion on my proposed starting points for crossing the following speakers in my new 2 way active build?

::speakers::
AF GB15 in sails
SI TM65 MKiii in factory locations (2016 Ford Taurus SHO)
SI RM-12 (sealed in trunk)

My DSP is a JL TWK-D8 feed via Toslink from a PAC AmpPro4

Based upon my research I'm planning to start by crossing at 80hz and 2khz with a -24db slope. I believe that slope is recommended for a few reasons such as being a bit safer and also avoiding some phasing issues at the crossover point...?

Does this seem to make sense for these drivers? I don't have exact dimensions for my sealed enclosure yet....don't think that will matter too much.
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Old 07-03-2019   #2
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

I'd say those are good starting points for sure.

Not sure how much level you can get out of the GB15 crossed at 2k as I have no personal experience with that driver.
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Old 07-03-2019   #3
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

I think you have a good starting point...similar to my set up and i think i have my tweeter at 2400. Lower does not sound better to me.

2018 Crosstrek
P SIX DSP MK2 GB10 GB25 Gs690 RM12 Z-2KD II
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Old 07-03-2019   #4
 
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

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Originally Posted by miniSQ View Post
I think you have a good starting point...similar to my set up and i think i have my tweeter at 2400. Lower does not sound better to me.
Did you by chance use a capacitor on your GB15 for protection? If so what size did you go with?
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Old 07-03-2019   #5
 
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

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Originally Posted by JVD240 View Post
I'd say those are good starting points for sure.

Not sure how much level you can get out of the GB15 crossed at 2k as I have no personal experience with that driver.
Thanks. I know this is a played out question most people are sick of hearing but you never know what details a new conversation will yield. At least that's my excuse for asking it ;-)
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Old 07-03-2019   #6
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

sub up to 65, midbass 80-2k, tweeter from 2k and up. all 24db LR slopes



Quote:
Originally Posted by xertian View Post
Did you by chance use a capacitor on your GB15 for protection? If so what size did you go with?
i use 47uf

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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

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Originally Posted by SkizeR View Post
sub up to 65, midbass 80-2k, tweeter from 2k and up. all 24db LR slopes





i use 47uf
Thanks. I bought some 47uf after doing the math but was hoping for some confirmation.
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Old 07-03-2019   #8
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

Quote:
Originally Posted by xertian View Post
Thanks. I bought some 47uf after doing the math but was hoping for some confirmation.
Just make sure it was 47uf and not 4.7uf. I, and many others sometimes seem to not notice that decimal point lol

Sent from my SM-G975U using Tapatalk

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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

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Originally Posted by SkizeR View Post
Just make sure it was 47uf and not 4.7uf. I, and many others sometimes seem to not notice that decimal point lol

Sent from my SM-G975U using Tapatalk
That must have sounded...interesting.
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Old 07-03-2019   #10
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Default Re: Crossover guidance - AF GB15, SI TM65km3, RM-12

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Originally Posted by xertian View Post
That must have sounded...interesting.
i always caught it before i used, but matei, my part time installer did not catch it when doing an install in his own car lol

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