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      11-10-2020, 03:59 AM   #45
Sirksael
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Quote:
Originally Posted by Pumxee View Post
I've been debating lately to add in a 2-channel amp for the underseat subs. I've been checking this out: Kenwood KAC-M1814

Link: https://www.kenwood.com/usa/car/amplifiers/kac-m1814/

It's a Class D with 90 watts RMS x 2 bridged at 4 ohms. It's small and might be the perfect fit for those. It's cheap at $150 as well. Hopefully, it doesn't overpower the subs. It's got a high and low pass filter as well. I'd bridge it to get 90 RMS then connect it. Should be fine?????

What do you think about this unit?

Also, last question. What's the advatnege of going with 2 separate amps (2 channel + mono) VS going with a 4channel (2+1bridged) and run the same rig? This is the amp: https://www.visions.ca/product-detai...=52&sku=XD4004


I guess I have one last question: What's the advantage of going with 2 separate amps VS going with something like this: https://www.visions.ca/product-detai...=52&sku=XD4004 - Which can be used for 2 fronts subs (70 RMS) and rear bridged (200RMS) and use that to power the 3 woofers?

Second option is to go for this unit which has less power but might be a better amp overall. And only run it on 2 channels 50 RMS non bridged. https://www.crutchfield.ca/p_575R220...-R2-200X2.html

The kenwood is $150 and the Rockford is $300
I'm sorry I completely missed your questions.
The Kenwood ios very similar to what I have running in terms of power, I think (not 100% sure) the underseat subs are 8ohm so overpowering them with this amp seems unlikely.

The thing about the Kenwood, like the one I am running, is that it doesn't have Low Pass Filter and High Pass Filter at the same time. So you can for example isolate 0Hz-200Hz or 200Hz-20KHz+, but not 90Hz-200Hz, which would be preferable to me. That Said, I run my mono amp at 0Hz-90Hz and the dual at 0Hz-200Hz and it sounds good enough.

I think the JL audio you are showing can do that. Otherwise JL audio are very high quality amps so should be a good choice too. I must admit I haven't studied the JL audio in all detail so if you plan on buying it, you should check whether it can Isolate frequencies

There is no advantage to having 2 separate amps for me, I just had the 2 amps I am using still lying around.
The rockford fostgate, no experience with the brand, it looks a little bit underpowered to me at first sight (assuming the underseat subs are 8 ohms, which I read but have never tested myself)
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      11-10-2020, 04:07 AM   #46
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Quote:
Originally Posted by Pumxee View Post
Hey just wanted to touch base regarding my last message. I have successfully installed the following gear:

Lc2i - LOC
JL XD300 - amp
JLtw3d4 - subwoofer

I need some help setting up the input sensitivity on the amp and the levels on the Lc2i. All youtube videos have confused me.

Also, wanted to know whether I should go for that Kenwood amp for the floor woofers so I can isolate high and low frequencies on it?
It is unfortunately a game of try and listen for a while. I had to change the settings at least 20-30 times before I was happy with them.
The LOC you can set easily, it has a overload LED, just turn your sound system all the way up to 80-90% with a good quality test track (hopefully you live in a secluded area ) and set the level on the LOC. (The overload LED can light up occasionally but not continuously)
I usually use Dire straits / sultans of swing, but you should use a track that represents the kind of music you listen to and of which you know that the recording is of good quality. You can also find things like frequency test tracks on spotify, they generate a tone at certain frequencies, so you can judge how good/loud each frequency sounds.

As for the level on the amp, it is try and listen. For me, listening for a minute and judging doesn't work, I have to leave a certain setting for 1-2 days before judging.
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      11-11-2020, 06:49 AM   #47
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Would an amp upgrade to the under seat woofers really make that big of a difference?
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      11-11-2020, 03:44 PM   #48
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Quote:
Originally Posted by Jrunr View Post
Would an amp upgrade to the under seat woofers really make that big of a difference?
It gives you a little more control. To my ears, the Harman Kardon system is lacking sub-bass and it sound boomy.
My goal was to add a sub for the sub-bass (succeeded), and to reduce the boomyness (only partially succeeded).
The system has some strange bevahiours, I suspect a lot of sound processing is going on, and nothing can change that as there is no way of taking the sound processor out of the system.
For example, there is a lot more bass when playing radio than when playing spotify. And when you turn it up, the bass starts to disappear around 50% volume. So anything you change is a compromise, I found something that works well for me for low volumes but I still don’t like the sound at high volumes.

For those interested, the stock woofers can supposedly also handle a lot more power than the stock amplifier.

Overall, I don’t think adding a separate amp to the stock woofers is worth it, unless you already have one lying around.
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      11-11-2020, 09:10 PM   #49
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I just want a full BavSound kit WITH subs... ugh.
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      11-16-2020, 05:29 PM   #50
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Quote:
Originally Posted by Jrunr View Post
I just want a full BavSound kit WITH subs... ugh.
Me too
i did stage 1 and 2 on my 5 series sedan and was really happy with the sound.

I’m going to do the Stage 1 and hope for the best
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      11-16-2020, 05:58 PM   #51
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I am thinking about taking the risk and upgrading the stock subs... is BavSound the best bet for these? I’ve seen quite a few different brands that should work. Any thoughts?
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      11-17-2020, 02:55 AM   #52
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Quote:
Originally Posted by Jrunr View Post
I am thinking about taking the risk and upgrading the stock subs... is BavSound the best bet for these? I’ve seen quite a few different brands that should work. Any thoughts?
I *think* the biggest real difference you can realise is by installing 4Ohm subs instead of 8ohm. But I can only speculate what that will do to your sound. I have seen some pretty knowledgeable people comment that the result is quite good.

In terms of Speaker quality difference, my personal opinion is that this matters more for speakers that have to render higher frequencies, so I am not sure if that will be really noticeable. Specifically the biggest difference you hear with better speakers is that they are able to render frequencies which stock speakers cannot (or not efficiently). But the stock subs have been tested to be quite good in that regard.
Mind, this is only my personal opinion, I am aware that there are many more differences between speakers, just not sure if the average ear can actually hear those differences.
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      11-17-2020, 05:06 AM   #53
Jrunr
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But can the stock amp take the load of 4 ohm speakers if it is configured to power 8 ohm subs?
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      11-17-2020, 07:31 AM   #54
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Quote:
Originally Posted by Jrunr View Post
But can the stock amp take the load of 4 ohm speakers if it is configured to power 8 ohm subs?
That is indeed a very good question. I can only answer that I see that some of the replacement subwoofers offered on the market are 4 Ohms, and that I have personally run 4 ohm speakers on an 8 ohm amp in the past without problems.
But, it remains a risk. Thank you for asking this question, I should have mentioned this in my original response.
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      11-17-2020, 02:23 PM   #55
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What ever happened to the group buy?
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      11-23-2020, 04:33 AM   #56
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Quote:
Originally Posted by Jrunr View Post
I was texting with a BavSound Rep today and he said if we can get 3 orders, we can save $150 on each set! That’s 18% off! Anyone else interested?
I'm interested in the group buy. I have Hi-Fi though but not sure that matters.
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      11-27-2020, 06:03 PM   #57
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Originally Posted by mtbdood View Post
I'm interested in the group buy. I have Hi-Fi though but not sure that matters.
Is that 3 of us? Also Hi-Fi. BF/group buy special?
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      11-29-2020, 03:28 PM   #58
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Black Friday/Cyber Monday is the best deal we will ever get
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      12-01-2020, 02:24 PM   #59
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Originally Posted by egprelude View Post
Is that 3 of us? Also Hi-Fi. BF/group buy special?
I went ahead and purchased the upgrade via the Black Friday deal.
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      12-01-2020, 04:44 PM   #60
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I bought it too! Looking forward to upgrading my HK system!! 👍
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      12-01-2020, 08:34 PM   #61
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Originally Posted by Jrunr View Post
I bought it too! Looking forward to upgrading my HK system!! 👍
I want to know what you think after the install please
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      12-02-2020, 05:01 AM   #62
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I want to know what you think after the install please
Ok. I’ll definitely let you know.
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      12-03-2020, 09:28 PM   #63
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Quote:
Originally Posted by Jrunr View Post
I am thinking about taking the risk and upgrading the stock subs... is BavSound the best bet for these? I’ve seen quite a few different brands that should work. Any thoughts?
I got my Bavsound Stage 1 today and got the installed completed in 3 hours. The biggest issue I had was on the main door installing the main cable back to the door panel. It would appear to latch on but still be loose. Each time i put the panel back on it would lose connectivity but appear to be secure. Took a over an hour to fix. On the other doors took about 1/2 hour each and I just rested the door panel on a box without disconnecting the cables.

I will say this, even without replacing the subs, the sound was noticeably better. Go with it and you will be happy for sure.

Good luck.
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      12-04-2020, 02:12 AM   #64
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How much was the BF deal
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      12-04-2020, 02:44 PM   #65
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Quote:
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How much was the BF deal
Not sure, but i bought mine during the BF weekend and got 10 percent and no shipping.
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      12-04-2020, 04:01 PM   #66
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I would've totally participated in the group buy, but I ended up installing a JL sub and Amp in the luggage compartment! Costed the same as the bavsound subs.
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