Need Help Asap!!!
hey guys,
im wondering how to constuct my sub box perfectly for maximum bass quality,
iv got 2 15inch soundstream subs dual voice coil that i picked up from a m8 cheap and i need to make a box for them,
im planning to put both in but need to know...
1) make a box with a split wall to seperate them
2) just hav them sharing the inner volume no wall dividing
3) port the box wether it has a split wall or not
and roughly how big should i make them coz i dont wanna stuff the sound quality too much,
keep in mind i listen to rap and rnb...
Find out the model number of the subs and get their specs off the internet... The specs will tell you what size and type of box they should go in.
Separate chambers are the usual way of making dual boxes.
seperate chambers also means if one blows itself up the other can still perform independently and stop you from effectively having a box twice as large as you should (being as you'd only be running half the power). if you can provide a Soundstream model that'd be great, primarily because i'm interested and secondly might help find some specifications. Your best bet is to check out www.soundstream.com and go to tech support > owners manual. they have a list of current and previous models and their manuals although some of the links don't work as i found out myself. They also have a "enclosure building" thing under the tech support section that should give a bit of help.
It's really hard to just say you should have 'this' type of enclosure with 'this amount' of internal volume and 'these port' dimensions... Find the manual and you should be set. Let us know if you want any help as far as constructing the box as i know a few links that should start you off. Soundstream manuals are generally fairly good as far as recommending enclosure sizes so shouldn't be too much trouble. Cheers, Bryce.
Ahhh Yes, Ahhh Yes....
This is a trial an error tuning job, make them fir the size of your allocated boot space... then port and foam till they sound the bass you like. Thats how they do all subs. They build a box of dimensions that look good and are practical and foam/port the rest.
aZk.
Wanted to buy:
1. T5 V8 Bellhousing and Clutch fork assembly suit VP
2. V8 Tail Shaft, T5, Suit IRS VP
3. T5 VB Gear Box
PM Me if you got what i need...
Originally Posted by ryno_vrx
America just kicked in yo
The soundstream website has the recommended enclosure sizes for each model and for the types of music you will be listening to.
========My Statesman 20's Mafless and 3.9's========
Not a valid input....
since when did it become a trial and error job for getting the correct port sizing.
You put you left foot in, your put your right foot in , you take your left foot out and you slide it all about!
I think people just make things up as they type it...
Each speaker has certain electrical and mechanical characteristic and special software can design the box and estimate a whole lot of information regarding how it will perform.
You can use trial and error, but it will take a long time to find what could be done in 5 mins with software.
yeah i was about to say... i didn't think leading manufacturers were still using methods as archaic as "trial and error". There'd be formulas out there but as was said here there's software that'll use all these and give you a recommended enclosure size in like 5 minutes without you having to think very hard at all
not quiet, the inactive sub would be a passive radiator thus there would still be some output from it.
Not a valid input....
done correctly you can actually use a second woofer not hooked up as a port to acheive better performance.
I've done a few PR systems. Absolute nughtmare but it works well.
You put you left foot in, your put your right foot in , you take your left foot out and you slide it all about!
i asked about how the sound characteristics anf frequency curve would be effected if you used a driver as a port, but no body answered.
Not a valid input....
you did? when?
You put you left foot in, your put your right foot in , you take your left foot out and you slide it all about!
Not a valid input....
Like I said earlier, a passive radiator (sometimes called a drone) can be used to replace a port
One of the major advantages of using a drone instead of a port is size for lower frequencies tuning. Low hZ tuned ports are generally quite long and sometimes it is easier to replace the port with the drone. Another good reason to use a drone instead of a port is in the instance of systems that move a LOT of air. Ports create turbulence which can be heard as a "waffle" in the system. Since their is no tubing in the drone it simply turns the pushed air into a sound wave that is musical instead of the waffling caused by turbulence
Tuning a drone is definetly tricky like I said earlier and you need to use their mass (mmp) and the way this movements interacts with the air flow inside the box.
The main issue with them is that they can create a "notch" (google it) in the frequency response when it reaches it's free air resonant frequency, this in turn causes a steeper rollof (in excess of 18dB) below the tuning frequency also leaving you with a transient response thats less then desirable. But considering the pros of elimanating turbulence and resonance from the vent many the sound and characteristics of drones to the standard reflex port.
Andnow, I think that we are a little off topic.
You put you left foot in, your put your right foot in , you take your left foot out and you slide it all about!
a while back.
i think you were MIA in then.
thanks for explaning it though!
Not a valid input....
MIA? I didn't have a lot of acess when I was in Japan....perhaps it was then.
You put you left foot in, your put your right foot in , you take your left foot out and you slide it all about!
probably. it says my message is too short. phooey!
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