Question about subs...help!!
06-Apr-2010, 10:08 AM
#1
Question about subs...help!!
I don't know jack about sound systems or anything... so here is my question..
When i got my eg... it came with a 10" sub and it was installed the ghetto way... but correct wiring.. it basically sits on the trunk floor (plywood cut to fit) facing upwards.. so no box or nothing... it's also got a 1000 watt amp so yea i hear people with smaller subs and bigger bass
especially with that video that got posted earlier.... obviously something is wrong and i can't figure it out... my buddy says it's cuz i dont have it in a box...
my sub doesn't pump... it looks like it pumps but it sounds so garbage... not clean at all.... what could this be?
When i got my eg... it came with a 10" sub and it was installed the ghetto way... but correct wiring.. it basically sits on the trunk floor (plywood cut to fit) facing upwards.. so no box or nothing... it's also got a 1000 watt amp so yea i hear people with smaller subs and bigger bass
especially with that video that got posted earlier.... obviously something is wrong and i can't figure it out... my buddy says it's cuz i dont have it in a box...my sub doesn't pump... it looks like it pumps but it sounds so garbage... not clean at all.... what could this be?
06-Apr-2010, 10:45 AM
#2
A box is 100% percent necessary in order for your sub to pump... the air within the box and the walls allow for the correct acoustics, therefore producing the sound you want.
BUT you can't just build any old box... first things first, SIZE MATTERS;
Build a Sub Enclosure
Scroll down to the middle of that link and you'll find the average volume required for your sub... it says 10" = 1.0 - 1.5, this is an approximation... my sub in particular only required a volume of .86 cubic feet, so try and find the specs for your sub, if you cant... go with the average.
When it comes to subs... plywood is an enemy, you want a wood that has the same density throughout every part of it so MDF is the way to go.
After all that is said and done, you'll need to adjust your amp gains till your pleased with the way it sounds.
Good luck
BUT you can't just build any old box... first things first, SIZE MATTERS;
Build a Sub Enclosure
Scroll down to the middle of that link and you'll find the average volume required for your sub... it says 10" = 1.0 - 1.5, this is an approximation... my sub in particular only required a volume of .86 cubic feet, so try and find the specs for your sub, if you cant... go with the average.
When it comes to subs... plywood is an enemy, you want a wood that has the same density throughout every part of it so MDF is the way to go.
After all that is said and done, you'll need to adjust your amp gains till your pleased with the way it sounds.
Good luck
06-Apr-2010, 10:48 AM
#3
A box is 100% percent necessary in order for your sub to pump... the air within the box and the walls allow for the correct acoustics, therefore producing the sound you want.
BUT you can't just build any old box... first things first, SIZE MATTERS;
Build a Sub Enclosure
Scroll down to the middle of that link and you'll find the average volume required for your sub... it says 10" = 1.0 - 1.5, this is an approximation... my sub in particular only required a volume of .86 cubic feet, so try and find the specs for your sub, if you cant... go with the average.
When it comes to subs... plywood is an enemy, you want a wood that has the same density throughout every part of it so MDF is the way to go.
After all that is said and done, you'll need to adjust your amp gains till your pleased with the way it sounds.
Good luck
BUT you can't just build any old box... first things first, SIZE MATTERS;
Build a Sub Enclosure
Scroll down to the middle of that link and you'll find the average volume required for your sub... it says 10" = 1.0 - 1.5, this is an approximation... my sub in particular only required a volume of .86 cubic feet, so try and find the specs for your sub, if you cant... go with the average.
When it comes to subs... plywood is an enemy, you want a wood that has the same density throughout every part of it so MDF is the way to go.
After all that is said and done, you'll need to adjust your amp gains till your pleased with the way it sounds.
Good luck
06-Apr-2010, 12:54 PM
#4
Member
Join Date: Oct 2007
Posts: 81
If you really wanna go all out and get a nice sounding sub you should try building your own box. A program called winisd allows you to input the specs of your sub and recommends the best size box based on performance of the sub.. you may have to read a manual, to learn the ins and outs of the program, but def better then the recommended sizes the manufacturer give you.
06-Apr-2010, 06:04 PM
#5
Ya... the correct dimensions can make or break the sound and pump of your sub. My 10" actually blew and I had a 12" laying around... I was simply too lazy to build a new box and cut a bigger hole in my 10" sub box for the 12" and I can say without a doubt, my 10" pumped harder than my now 12", had to turn up amp gains to match 10" performance.
06-Apr-2010, 10:16 PM
#7
Senior Member
Join Date: Oct 2007
Location: Chatham
Posts: 238
Bass??
Every speaker has its ideal box dimension. There are a couple of civics Here .
The box can be made of anything dense. MDF is the most common, but I have used the body of vehicles for a side or two with great results. The spare tire location in your car works perfect for 2 JL 12's by the way.
Do yourself a favor, google your sub. I'm sure the manufacturer has the recommended box dimensions somewhere out there. Ported or sealed? That question is a posting on its own.
You need some decent math, hand tool skills and a HomeDepot and your good. Or buy a pre built box for 100 bucks. You choose.
Happy Bumpin
The box can be made of anything dense. MDF is the most common, but I have used the body of vehicles for a side or two with great results. The spare tire location in your car works perfect for 2 JL 12's by the way.
Do yourself a favor, google your sub. I'm sure the manufacturer has the recommended box dimensions somewhere out there. Ported or sealed? That question is a posting on its own.
You need some decent math, hand tool skills and a HomeDepot and your good. Or buy a pre built box for 100 bucks. You choose.
Happy Bumpin
07-Apr-2010, 09:27 AM
#8
Everything everyone has said here is correct. Moreover, when building your box, most of the dimensions talked about at the volume which your sub needs, not the size of your box. v= l x w x h
When building the actual box it can get a little complicted if you're not strong in math. With the knowning the volume your sub needs you will also have to add in for sub displacement. IE: Think of a full glass of water being your volume, and ice cubes your sub displacement, if the volume is perfect adding the ice cubes will make it over flow. So if your desired volume is 1cubic foot ( 1'^3) and your sub displacement is 0.2'^3, your total volume will be 1.2'^3.
That's the easy part. Now you need to select the MDF (assuming you're using MDF, Medium Density Fibre). The Thicker the better. I usually use 5/8".
Now you need to design your box to A) Fit in your Trunk B) Cover your total volume.
I'll have no problem designing you a box if you can tell me what materials you're using, and the Volume you need. I'll explain why I designed what I did, too.
To confuse you further, there's 3 main box types 1) Sealed, 2)Ported or Slotted (different, but very much the same) 3) Bandpass.
I can only design Sealed and Ported, the others are outta my league.
-B
When building the actual box it can get a little complicted if you're not strong in math. With the knowning the volume your sub needs you will also have to add in for sub displacement. IE: Think of a full glass of water being your volume, and ice cubes your sub displacement, if the volume is perfect adding the ice cubes will make it over flow. So if your desired volume is 1cubic foot ( 1'^3) and your sub displacement is 0.2'^3, your total volume will be 1.2'^3.
That's the easy part. Now you need to select the MDF (assuming you're using MDF, Medium Density Fibre). The Thicker the better. I usually use 5/8".
Now you need to design your box to A) Fit in your Trunk B) Cover your total volume.
I'll have no problem designing you a box if you can tell me what materials you're using, and the Volume you need. I'll explain why I designed what I did, too.
To confuse you further, there's 3 main box types 1) Sealed, 2)Ported or Slotted (different, but very much the same) 3) Bandpass.
I can only design Sealed and Ported, the others are outta my league.
-B
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