What sub will fit? - Page 3 - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #21 of 32 (permalink) Old 05-27-2017, 12:21 PM
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The rockford powered subs are sealed, which provides a much tighter, cleaner bass than a ported box. Something to keep in mind.

The LC7i is 7.5W x 4.72D x 1.22H. I could manage to jam it in there, but there was not enough room left over for the wires to run to it in a professional looking manner. The Depth is what you have to watch, and where the wires connect. The power pack appears much narrower in depth, so that may fit just fine. There is some space behind the head unit....you can pop the center speaker cover and take a peak from outside the windshield or with an inspection mirror, and it may fit there, but thats probably about it.

I originally went with an inexpensive PAC LOC to get signal to my kenwood amp for the door and dash speakers, but it wouldn't work. I'm not sure exactly what the problem was, but once swapped for the LC7i, all was good.

I was going to just get the LC6i (i had no desire for the additional "accubass" functionality) but according to AudioControl specs., the LC7i was a bit smaller in size and I knew mounting space was at a premium where I planned to locate it.

The system sounds very good, but how much of that i can accredit to the LC7i or not, i do not know, as I installed it all at the same time.

I put JBL GTO 629 in all 4 doors, and JBL GTO 19t in the dash. I have used polk in the past, and while ok, I blew one out with a low power head unit so I have avoided them for car audio ever since.
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post #22 of 32 (permalink) Old 05-27-2017, 01:07 PM
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After browsing a couple other audio threads, it appears stuffing a 3.5" speaker in the dash is a common way to go. I think there are better alternatives. All you need is a hole saw and a .75 inch dome tweeter, with built in crossovers, for like $40. No bass blockers, no trimming of plastic, plenty of space, and do you really want a mid-range speaker of such a small diameter? Your getting your mids (and highs) from the door speakers, your lows from the sub woofer, and your highs from the tweeters.

ill try to take a couple more pics. that may be of interest.

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post #23 of 32 (permalink) Old 05-27-2017, 01:39 PM
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Here is the smaller flush mount dash tweeters installed, along with a pic of RF sub output controller (included with sub) , and a bonus pic of the OEM long tube equal length headers as seen with the top of the heat shield removed, as is mine.
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post #24 of 32 (permalink) Old 05-27-2017, 08:52 PM Thread Starter
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Nice set up, I love the way you mounted the tweeters, looks really clean, the Polk Db651 are rated 6-60w rms so hopefully the stock system won't blow them out from being under powered,we'll see how they sound without the amp. My only concern now is the hideaway sub fits exactly under the passenger seat with no room above so I'm afraid it might rattle the front seat, but it's only a 8 " sealed enclosure so I'm hoping it will be ok, I guess we'll have to see. Great setup @mach1219 Btw

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post #25 of 32 (permalink) Old 05-29-2017, 09:10 AM
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Thanks. The polk that blew was a 3.5 dash speaker, and i'm not sure what exactly caused it to blow out, maybe i had a defective one. It wasn't that old when it happened.

My thoughts with a sub under the seat in this car .... there is not a lot of room under there. The seats sit really close to the floor, its hard for me to even reach under there using only my hand and you want airflow and space for proper cooling. Electronics and heat don't mix. How it will sound...who knows? Probably good. Bass works from anywhere and i don't think your seat will rattle, its mostly cushion and fabric
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post #26 of 32 (permalink) Old 05-29-2017, 12:37 PM Thread Starter
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OK cool thanks for your input @mach1219, I'm actually getting it installed as we speak at BestBuy, so I'll let you know how this sub sounds.

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post #27 of 32 (permalink) Old 05-29-2017, 06:40 PM Thread Starter
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This sub is pretty impressive, I couldn't believe how good it sounds, it actually hits like a sub, not too loud but definitely hits, nice clean and tight bass, can't wait to replace all the stocks speakers, I think this was the setup I was definitely looking for.

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post #28 of 32 (permalink) Old 05-30-2017, 09:47 AM
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Quote:
Originally Posted by mach1219 View Post
Thanks. The polk that blew was a 3.5 dash speaker, and i'm not sure what exactly caused it to blow out, maybe i had a defective one. It wasn't that old when it happened.

My thoughts with a sub under the seat in this car .... there is not a lot of room under there. The seats sit really close to the floor, its hard for me to even reach under there using only my hand and you want airflow and space for proper cooling. Electronics and heat don't mix. How it will sound...who knows? Probably good. Bass works from anywhere and i don't think your seat will rattle, its mostly cushion and fabric
Did you have a capacitor on those 3.5" Polks?

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post #29 of 32 (permalink) Old 05-30-2017, 10:35 AM
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Quote:
Originally Posted by BrianU View Post
Did you have a capacitor on those 3.5" Polks?
Whatever they came with. I dont remember. It was a long time ago. I sold that car around 2002
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post #30 of 32 (permalink) Old 05-30-2017, 10:56 AM
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Quote:
Originally Posted by Ghost023 View Post
This sub is pretty impressive, I couldn't believe how good it sounds, it actually hits like a sub, not too loud but definitely hits, nice clean and tight bass, can't wait to replace all the stocks speakers, I think this was the setup I was definitely looking for.
good news. Ive been considering something for under the seat in my truck, ill throw it into the mix
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