6.5 midbass.. how can i get more out of them

[240sx_in_209]

well i just bought some audiobahn 6.5 mid bass speakers alot better then i thought there were going to be for the price lol 20 bucks haha but so on.. i put them in my back of my coupe they sound good after i got most of the rattles out. But it seems to be all bass. like just the vibrations and not really of those deeps notes. Is there something i can do. i went with mids in the back because i like having a trunk and with that stupid sub box i could not fit s*** in there thanks.. and plz pics would really help lol

[Looneybomber]

I don't think I understand what you're wanting.

they sound good after i got most of the rattles out.That's good.But it seems to be all bass.Ok, bass is good.like just the vibrations and not really of those deeps notes.Huh? Are you saying they're vibrating your car, but you can't hear the deep bass? You can just hear the midbass coming from a...midbass?

What should I post pics of?

[240sx_in_209]

like i can feel the vibrations.. like if i turn off the speaker in the back it sounds just with out the vibrations. is there anything i can do to get some like deeps sounds from them?

[Looneybomber]

like i can feel the vibrations.. like if i turn off the speaker in the back it sounds just with out the vibrations. is there anything i can do to get some like deeps sounds from them?

If english is not your first language, it's ok, but I am having a hard time understanding what you're trying to say.

like i can feel the vibrations..

That vibration is either sound energy vibrating your car (not likely) or mechanical energy from the coupling between the driver (speaker driver, not you) and what it's mounted to...which is part of the car.

like if i turn off the speaker in the back

Ok, so you fade from having all speakers play to just the front speakers. Gotcha.

it sounds just with out the vibrations.

...And you lost me.Do you mean they produce sound but without vibrating your car?

is there anything i can do to get some like deeps sounds from them?

Here's things you can do; Check to make sure all speakers are wired in phase. Positive to positive, negative to negative. Anything that's out of phase will cause cancellation in bass and weird effects in the mid and high range.

If everything is wired in phase, you can try adjusting time delay's, which is what most cars need, but good luck with that without buying more equipment.

Next would be to add a subwoofer. A midbass is not a subwoofer and will not produce deep bass to any usable output level.

[240sx_in_209]

Never mind sorry for asking

[Looneybomber]

No need to apologize for asking; if you knew you wouldn't have asked

Here comes a crash course in acoustics 101.

Sound is produced by a compression (and vacuum) of air. The lower the bass, the more air needs to be compressed (typically referred to as swept volume or displacement usually stated in Liters) . A small 6.5" driver cannot move enough to produce deep bass because 1) it has a small cone (not much surface area) and 2) it doesn't have a lot of travel.

A driver's swept volume is figured by using the formula of a cylinder; pi*r^2*h, or surface area of the cone multiplied by it's linear travel (how far the cone moves in and out). Increase either the surface area (bigger driver or multiples of that same small driver) or the linear travel and you will increase the swept volume, which equates to more bass.

[240sx_in_209]

i was wanting to ask is there somekind of sub box i can make but a small one but still channel the air into the cabin maybe something like thissomething like this but in a coupe... something along those lines..

http://www.youtube.com/watch?v=JuJmZbVncoU

[Looneybomber]

Well you could try something like a 4th or 6th order bandpass box and run the ports into the cab, but those enclosures, relatively speaking, are not small and may not work with the drivers you have. It all depends on their TSP's (Thiel Small Parameters)

You could also try a ported enclosure and run the port into the cab, but that would be a bad idea because of how the port works on a normal ported enclosure.

Depending on how much room you have under your seats, you could try to make an enclosure out of fiberglass and put it under your seats? My GF's Altima has enough room to do that.

[240sx_in_209]

ok also...well i got these speakershttp://www.sonicelectronix.com....html

and also dose anyone know if the hinges of the convertibles fit on the couple? like the hinges for the trunk to lift?

[audtatious]

Being midbass drivers you should not expect deep bass notes from them. Bass is roughly translated as 0-100hz and midbass is roughly 100-250hz. If you want bass then you will need a dedicated subwoofer, IMO.