01-05-2020, 10:30 PM | #1 |
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2020 Bavsound Ghost Subwoofers
Has anyone done a recent upgrade to the ghost subs from Bavsound on a 2020 X3 M40 with HK?
I am more specifically interested in the need for Dynamat deadening when installing. I want to make sure I have everything I need to make this perfect the first time around since I have to disconnect the seats. If I should add it exactly where would I apply the Dynamat? In the enclosure itself or under the enclosure? I read several other threads about this but it was either older models or didn't really cover these questions. |
01-06-2020, 08:50 AM | #2 |
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I have the HK in my M40i. I have been tempted to do a full Bavsound replacement. I'm not unhappy with the HK, but the speaker/ driver quality makes it look like a worth upgrade.
That said; hard to judge a speaker by looking at it. Would cost ~$1,500 for full upgrade.
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01-06-2020, 09:12 AM | #3 |
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I would put Dynamat outside the enclosure as not to further reduce the limited internal volume of the box. Also stuff polyfill into the box.
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drewfromthehou80.50 |
01-06-2020, 11:13 AM | #4 |
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I replaced the subwoofer with Audison APBMW S8-2. I'm not saying Bavsound is not good, but for me their advantage is to make some universal speaker driver fit to specific BMW vehicle(plug & play) which is really good for us to install it ourselves. But soundwise I prefer more trusted brand such as FOCAL, AUDISON, MATCH, etc.
Just my 0.02. |
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01-06-2020, 11:20 AM | #5 | |
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Want solid quality bass reproduction?- one needs a large diameter (10-12") speaker to produce very low frequencies- no 6" or so diameter speaker can reproduce very low bass frequencies. |
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01-06-2020, 06:29 PM | #6 |
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If OP only want to improve mid bass performance and lower distortion at higher level, better replacement underseat sub will fulfill this requirement. Only way to get lower sub frequency (below 50 hz) is to get trunk sub. No other way around this.
As OP had HK system which personally what I have in my F10, the only upgrade path he had is changing the speakers and underseat sub. Done that and I'm quite satisfy with the improvement. The OEM HK speakers + sub sound muddy when playing at louder level (more than 60% level). Lower volume I don't hear much different. Note to OP: HK underseat sub is 8 ohm. Don't get 4 ohm underseat sub. Only underseat sub that match the spec is either Bavsound Ghost or Alpha One which is 7 ohm. My understanding is they used 7 ohm so that the driver will sound slightly louder compare to stock. So far OEM HK amp have no problem driving 7 ohm underseat sub. Last edited by pierreye; 01-06-2020 at 07:37 PM.. |
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drewfromthehou80.50 |
01-06-2020, 07:18 PM | #7 | |
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My main concern is to reduce the rattle that already happens under the car when listening to stock. The car sounds horrible when listening to music to anyone standing outside the vehicle. Which is why I was asking about the Dynamat. |
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01-06-2020, 08:19 PM | #8 |
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I'm not sure Dynamat will solve the rattle heard outside. My F10 does sound bass heavy outside. Dynamat will deaden the panel to reduce vibration but if you want to block the sound try using Noico Red 150 mil. Remove the door vapour barrier and stick Noico Red on the door metal sheet. Dynamat normally will be install on the inner door panel.
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drewfromthehou80.50 |
01-06-2020, 08:47 PM | #9 |
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I just upgraded my F97 X3MC with HK to BavSound.
I have been upgrading my HK to BavSound on my F10, F06, and G30. For me, the HK is good enough, but the sounds coming out of it is very dirty. The BavSound have better clarity. For what it is, a plug n play solution where most of you guys are able to do it at home, it is very good product. Now, sound deadening wise, since G series, the door panel is sealed with fiber glass / plastic cover where the speaker is mounted to. So, there is no sound deadening needed.
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01-06-2020, 10:01 PM | #10 | ||
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I'm shocked that the underseat subs in this car offer a LOT less bass than in my F25 X3. Aren't things supposed to improve?
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Which impedence? Quote:
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01-06-2020, 10:11 PM | #11 | |||
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APBMW S8-2 told you the 2ohm impedance by name |
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01-07-2020, 12:30 AM | #12 | |||
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BavSound still refining their Revenant amp for HK system. So far I have been fine with stock amp. More punch needed, but clarity matters more for these old ear that used to play with a lot of SPL system.
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01-07-2020, 01:12 PM | #13 | |
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And of note, for those with HK systems: as noted the subs are 8 ohm, but they would perform awfully with the MATCH7 amp (or one of the rebranded ones). So if you do end up amping later, you'd need different impedance woofers (2 ohm as suggested by BAV from our last conversation.) They suggested amping first with 2 ohm woofers then the speakers later.... again assuming I could rectify the MOST to TOSLINK input issue on my end. |
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01-07-2020, 04:27 PM | #14 | |
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01-07-2020, 07:15 PM | #15 |
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I've found the bass to be quite sufficient, great in fact. Not only in my X3MC but also in my '19 M40i and even my F25 '15. Mind you, I have the bass cranked full and the equalizer set appropriately as well.
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01-07-2020, 08:26 PM | #16 |
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01-08-2020, 08:30 PM | #17 |
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Update
So I completed the install today and wanted to give a update for anyone that may be interested in the same.
While I had the seats disconnected I went ahead and covered a good portion of the floor with sound deadening foam. Then inside of the enclosure added a little Acousta-Stuf polyfill. What I was going for was tighter and more clear bass but I am actually surprised by the results. The bass level (even before break-in) is tight but also much more punchy. I'm shocked with how much more bass this added to the system. The deadening also helped with road noise a ton and now when playing the music and stepping outside the car it doesn't have the loud rattle noise I was experiencing with the stock system. All in all, if you are not looking for chest pounding bass and want a OEM looking solution this is a great way to get it. Now it just makes me want to do the stage 1 speaker upgrade with it because now you can tell how horrible of quality the HK speakers are. |
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01-08-2020, 11:59 PM | #18 | ||||
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I'm not looking to replace the stock amp. Was just wondering if I was to replace the stock subs only, how much improvement I might get. In such a case, do you think the Audison subs you used would provide the same results as the two guys below? Quote:
And isn't that what their marketing says? That it punches harder too? Myself, not being an audiophile, I'm just looking for more bass I can feel and trying to decide if it's worth the cost to replace the subs if I'm not going to upgrade the amp too... Most people tend to say that to really get the most out of replacement subs would be to add more power to them also. I wonder if any of the harnesses Technic makes (famous on the forums from the E9x which also had 8" subs under the seats, and he pioneered this technique) might work for this car... http://technicpnp.com/product-catego...-top-hifi-688/ Basically he made a plug and play harness that connects to your amp, without cutting any of the wires, allowing you to bypass the stock amp from feeding the subs, and instead for you to connect a new amp in the trunk to it and have its power go to the subs, using the existing factory wires! Damn brilliant! Quote:
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01-09-2020, 01:16 AM | #19 |
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Lotus, I did look at them but ultimately chose the BavSound because of so many people on forums saying they had good results and the fact it was so easy to call them up and ask questions and really understand the process. I am excited to see how these break in and sound in a few weeks though.
Although if you are looking for a real punch in the bass, I would throw a box in the back. I wanted something in between big bass and HK and these are exactly that. |
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01-09-2020, 01:36 AM | #20 | |
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Last edited by pierreye; 01-09-2020 at 06:41 AM.. |
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01-09-2020, 10:47 AM | #21 |
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Hey Lotus, if I crank the bass and then access the equalizer, I am able to make adjustments to the bass/mid/treble - if I go back to the bass/treble controls, they're where I left them. I'm not doing anything special or any coding.
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01-09-2020, 12:34 PM | #22 | |
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