Thanks!

Much appreciated!

I love it! Your deadening and low quarter wave totally make the bass alive when the windows roll down! 6th orders also help with the loading when built correctly! Thanks for sharing!

That is awesome!

Agreed, so many factors.

I have absolutely no experience with those systems but I imagine that you’d want to be as quiet as possible on the outside. Because that’s lost sound that could be increasing your spl inside.

Delilah also burps with doors closed, but I am also surprised at how quite it is outside with a 180+ inside.

Y'all are both right. Honestly it's a testament to how much work and effort has gone into that van. It's the most impressive thing I've seen in car audio

@@biguzivert Interesting point!

has absolutely nothing to do with cabin size or sound deadening. All the cars ive heard including my silverado were louder outside because of huge windows and strong door panels and solid roof. All japanese cars / newer cars you can barely hear outside because theyre made with thin sheet metal that vibrates a lot and cancels a ton of shit out + small windows. Dashboard shape affects this too.

There are tons of shows in Southern California. It has been a long time since I have been there, but plan on resuming going to those shows sometime in the future.

Thanks! There are so many variables! I still learn a alot with every new build I do! I appreciate your positive comments!

The shape, box design, box style, amount of subs, power, where it is located, cabin mods, etc can all make big differences to how loud it is outside.

With mids/highs, its more about having them close to the window so the sound isn't getting caught/cancled/muffled in the vehicle before it exits. But, it is possible that something like a compression driver might help. I haven't done enough testing to really know.

That’s totally due to how they were built! They used to reflect more bass back in the day!

@caraudiolab Ya I had a mustsng hatchback with 4-10s, 2-15s etc and always had it bouncing off the hatch

Yepp you are right

My Juke unloaded with three windows download. It wasn’t so bad with two down. However, it was always underwhelming with windows Dow or doors open.

@caraudiolab I'm still experimenting to see what works. I have an old school phoenix gold bass cube. I keep it dialed in on 27hz. That's my low peak. High peak is 51hz. I epicenter that. Me and my volt love the lows, lol

@@BigYank33700 Lows are fun. ;)

@@caraudiolab What are your thoughts on processors? Do you use any? Have you used an original bass cube? I have had one in every system I've built.

@@BigYank33700 Modern decks do a lot of system processing now. I still think they can help quite a bit depending on the source signal. My buddy swears by them and he ran a car audio shop for 20 years. I am actually looking at adding a DSP to my van build but am still deciding that. I haven't used the original bass cube, personally but I know Phoenix gold is awesome stuff! I still have a couple of their amps, call it nostalgia! They were my dream amp back in the 90's! lol

Probably which ever one is louder in the vehicle, if they both peak at the same spl, I would say the 6th just because it would have a greater bandwidth that would appear louder over music than the ported flat wall.

@@caraudiolab Why some 6th order bandpasses have subs facing forward, and others facing the left side? Despite having room to do either one of them.

@@TheGamingChad. That completely depends on the goal of the 6th. Facing forward is used for demo and daily builds because it pressurizes the cabin evenly. Subs facing one side is used for competition, because it pressurizes the side of the cabin where the mic goes and gets a louder better score there. It can also be a good daily or demo build as well, but usually competitors do that.

in any case, your videos are really interesting for me who is a beginner , and I see that the opinion is shared by everyone

Thanks for the video! Facing subs forward for higher bass (like maybe 40hertz to 100 hertz) make sense. This is also louder in general. Subs preform better in that range in general. It is the conventional norm. Facing the subwoofers backwards is better for lower bass, like under 40 hertz. This depends a little bit on the car size and length, but typically lets the bass wave better form because of the length. I don't know if rebassed music is popular down there, which specializes in lower bass. If not, I can see why they face subs forward. However, I have tinkered with actually facing subs backwards using just enough space between the vehicle and box to let the bass wrap around the car like a port that it gets stupid loud. However, that tends to happen within a range of frequencies. equipment

@@dqmnjohn_4491 I can see that my comment got cut off. It really depends on your equipment, length and the music you are playing (for frequency purposes). However, I think if you are playing regular stock music, maybe a parallel tuned (not series) 6th order double bandpass tuned to 45/90 hertz may be an awesome option! Get a sensitive sub with a higher fs with decent power handling for this application. If possible get the Sundown Uv1, for this, they are on sale for $300 american. This is a great music/spl sub that is almost half off right now because Sundown came out with the version 2. However, if you already have your subs, no worry. you still have lots of options!

Rebass music is popular here, (less than 40hz), but I'm afraid the build lacks punch, (I love low bass but I also like when you feel a kick in the chest ...) I'm fickle I know hahaha.

Maybe the lack of punch can be resolve by the PA speaker we use for vocals and high ...

Completely agree! I wanted to show off so many years ago! Now, I enjoy the bass being contained to the car! I only want to show off when I am at competition!

Because you said so? 😂

I am a 50 year old kid then because I still think it's awesome the further away you can hear it

Get off my lawn!!! 😂