05-24-2021, 01:57 PM | #225 |
Sleep Chomper
Join Date: May 2014
Drives: BRZ
Location: Mill Creek
Posts: 312
Thanks: 258
Thanked 98 Times in 66 Posts
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
|
Sooo totally went another direction. Decided to get this sub that comes with an amp already:
https://www.amazon.com/Cerwin-Vega-P...1878664&sr=8-5 Now the real question is... how do I apply a lopass filter to the front speakers since I ideally want to have this sub handle all the low frequencies. Unless this is not really needed? Is there something that I can put for pin 1,2,5,6 ? This sub has no out and I am envisioning installing this by tapping the stock wiring harness (pins 3,4,9,10) as hi level inputs |
05-24-2021, 02:33 PM | #226 | |
Master Collaborator
Join Date: Nov 2019
Drives: Was '15 FR-S, 6MT, Now '15 GT86
Location: West Virginia, USA
Posts: 1,397
Thanks: 209
Thanked 985 Times in 597 Posts
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
|
Quote:
If your head unit has low level RCA outputs, you need to find out how many, and if they have any built-in crossovers that you can set inside the the unit. Having a dedicated subwoofer RCA output will be beneficial to you in this situation as you can now run that signal to your new spare-tire sub/amp combo. If you're still running the OEM amplifier to power the door speakers, remember that there are no adjustments that you can make with it. It has no gain control, the low pass filter is fixed and the subsonic filter is fixed if it has one. If you make any major changes to your system, the OEM amp becomes pretty much useless unless you want to spend even more money to properly integrate it. If your deck is powering the front speakers (the dash mids and tweeters) only, and if your deck has front crossover capabilities that carry over not only from the RCA outputs, but also to the speaker outputs, you may be in luck. But then you would have to find a way to supply a non- filtered signal to the OEM amp or you're door speakers will be attempting to play the same frequencies that you are trying to make your front speakers play. But since there is a low pass filter in the amp, you won't get much out of the door speakers. Give us the brand and model number of your head unit and we will find the installation/operator's manual for it and let you know what kind of options you will have. That's the best way we can offer help. *Edit* Your front OEM speakers already have a 6db/octave passive crossover to filter out the lower frequencies that they shouldn't be playing. The OEM door speakers and amp work together as a team along with the front speakers to form a three-way front stage. |
|
The Following User Says Thank You to FR-S2GT86 For This Useful Post: | rixter145 (05-24-2021) |
05-24-2021, 02:50 PM | #227 | |
Sleep Chomper
Join Date: May 2014
Drives: BRZ
Location: Mill Creek
Posts: 312
Thanks: 258
Thanked 98 Times in 66 Posts
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
|
Quote:
For the '6db/octave passive crossover' - how does that work exactly? Does it reduce 6db at 100 hz? I think at this point, I will just keep it simple with the stock amp and tap in the signal wires and put them in as hi level inputs |
|
05-24-2021, 06:13 PM | #228 | |
Master Collaborator
Join Date: Nov 2019
Drives: Was '15 FR-S, 6MT, Now '15 GT86
Location: West Virginia, USA
Posts: 1,397
Thanks: 209
Thanked 985 Times in 597 Posts
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I can't remember exactly what frequencies the OEM mids and tweets are crossed over at, but if you know the value of the capacitors in line with each driver, you can look them up using a chart or calculator. Here is a calculator that can help you: https://www.the12volt.com/caraudio/p...ulator.asp#ccc Scroll down the page about halfway and input information for 4-ohm speakers. If you're just adding a sub and that's all, determine if you want the sub to fade with the front speakers or with the rear speakers. If you want it to fade with the front, make sure you tap the signal input leads to the factory amp for your signal, since that will be a full-range signal to work with. Also, make sure to connect them in phase with each other to the subwoofer amp input, or else the two signals will cancel each other out and you will have almost no bass output from your sub. It will also help if you can make sure that the output of the sub is in phase with your door speakers to help eliminate bass cancellation between the sub and doors speakers. The same rules apply for tapping into the rear speakers if you want your sub to fade with them instead. @soundman98, I did some experimentation last week with the factory amp if you're interested in the data. I measured the signal voltage in and compared it to the speaker voltage out with minimal to no clipping at several different frequencies trying to keep the same input voltage at all times. I ended up making about 5 different measurements of both the inputs and outputs at each frequency, then averaged them all up to get the best results. Haven't gone to the trouble to graph it all out, and it's not hugely representative of the frequency spectrum, but it might be useful to somebody. Just let me know and I'll post it later tonight or first thing tomorrow. |
|
The Following 2 Users Say Thank You to FR-S2GT86 For This Useful Post: | rixter145 (05-24-2021), soundman98 (05-24-2021) |
05-24-2021, 09:57 PM | #229 | |
Member
Join Date: Sep 2016
Drives: 2014 BRZ
Location: Portland, OR
Posts: 45
Thanks: 23
Thanked 10 Times in 9 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Sent from my SM-N970U using Tapatalk |
|
The Following User Says Thank You to NickB34 For This Useful Post: | rixter145 (05-24-2021) |
05-24-2021, 10:39 PM | #230 | |
ProCrastinationConsultant
Join Date: Sep 2013
Drives: '14 Ranger, '18 Tacoma 4Dr LB
Location: chicago-ish
Posts: 11,330
Thanks: 35,240
Thanked 13,673 Times in 6,781 Posts
Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
"The time you enjoy wasting is not wasted time"
|
|
The Following User Says Thank You to soundman98 For This Useful Post: | rixter145 (05-24-2021) |
05-24-2021, 11:18 PM | #231 |
Sleep Chomper
Join Date: May 2014
Drives: BRZ
Location: Mill Creek
Posts: 312
Thanks: 258
Thanked 98 Times in 66 Posts
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
|
Wrt aftermarket amps, I stumbled upon Nick from Etsy who does 3d bracket printing for those who want to pursue that option
https://www.etsy.com/ca/listing/8164...p_home_recs_10 He also does brackets for door speakers/tweeters/rear speakers as well. So if I am going for aftermarket, I will def be getting those from him |
05-25-2021, 01:45 AM | #232 | |
Master Collaborator
Join Date: Nov 2019
Drives: Was '15 FR-S, 6MT, Now '15 GT86
Location: West Virginia, USA
Posts: 1,397
Thanks: 209
Thanked 985 Times in 597 Posts
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I'll pull it out, disassemble it in the next day or two and see what I can find then get back to you. |
|
05-25-2021, 02:05 AM | #233 | |
ProCrastinationConsultant
Join Date: Sep 2013
Drives: '14 Ranger, '18 Tacoma 4Dr LB
Location: chicago-ish
Posts: 11,330
Thanks: 35,240
Thanked 13,673 Times in 6,781 Posts
Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
"The time you enjoy wasting is not wasted time"
|
|
05-25-2021, 02:06 AM | #234 |
ProCrastinationConsultant
Join Date: Sep 2013
Drives: '14 Ranger, '18 Tacoma 4Dr LB
Location: chicago-ish
Posts: 11,330
Thanks: 35,240
Thanked 13,673 Times in 6,781 Posts
Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
|
You're much more motivated than I am
__________________
"The time you enjoy wasting is not wasted time"
|
05-25-2021, 02:56 AM | #235 |
Sleep Chomper
Join Date: May 2014
Drives: BRZ
Location: Mill Creek
Posts: 312
Thanks: 258
Thanked 98 Times in 66 Posts
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
|
|
The Following User Says Thank You to rixter145 For This Useful Post: | soundman98 (05-25-2021) |
12-01-2022, 07:42 PM | #236 |
Junior Member
Join Date: Nov 2022
Drives: 2014 Subaru BRZ
Location: Toronto
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Well I’m late to the party…
Just picked up my 2014 brz this spring and Like ya’ll I’m over the sound quality of the audio system. I’m about to do amp swap with the alpine. I’m going to update my door speakers as well with focal ec165 coaxial. I also have the stock oem kicker sub in there (that will go soon), I guess I’m wondering if adding this alpine will do anything negative to the car or power since there is a sub and amp already. Also, is there a fix for the ground wire static issue? |
12-01-2022, 08:38 PM | #237 |
ProCrastinationConsultant
Join Date: Sep 2013
Drives: '14 Ranger, '18 Tacoma 4Dr LB
Location: chicago-ish
Posts: 11,330
Thanks: 35,240
Thanked 13,673 Times in 6,781 Posts
Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
|
imo, it's much better to run a new power wire from the battery.
things can be cobbled together with the oem wiring, but at the level of effort of replacing the speakers and the amp, it's really better to just replace the wiring as well to get the most out of the new parts. what kind of 'ground static' are you experiencing?
__________________
"The time you enjoy wasting is not wasted time"
|
12-02-2022, 04:16 PM | #238 | |
Junior Member
Join Date: Nov 2022
Drives: 2014 Subaru BRZ
Location: Toronto
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Are you saying run a new power wire from the battery for this alpine unit?
I知 not experiencing any ground static as I知 yet to do the install. But from what I致e been reading in the pages of this thread there seems to be an issue with static from the ground wire. The oem kicker sub plugs into the back of the head unit and powers through the wiring harness. It痴 sounds ok but now the doors and tweeters are falling behind. I知 going to try this first and see if this helps complete the sound. If not, then full build ahead this summer. I just need more volume and omphh from the door speakers and tweeters. Quote:
|
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Wideband LC-1 wiring. | MattF | Forced Induction | 9 | 07-09-2013 09:33 AM |
Wiring a sub in a BRZ | Shizuma | Electronics | Audio | NAV | Infotainment | 22 | 06-08-2013 01:02 PM |
So is there a DIY yet for BRZ headlight wiring for the FR-S? | seven | Cosmetic Modification (Interior/Exterior/Lighting) | 4 | 11-25-2012 09:24 PM |
x940bt wiring help | encity5 | Electronics | Audio | NAV | Infotainment | 10 | 08-31-2012 04:08 PM |
Is foglight wiring in the car? | FastLap | Scion FR-S / Toyota 86 GT86 General Forum | 7 | 08-26-2012 11:54 PM |