Building a Subwoofer

[my_first_account 0]

If the Shiva comes with D4 coils, I don't see a reason why you couldn't run it! Obviously, you'll want to upgrade down the line, but for now it will work.

Ok, I'll try to make sure it somes in D4. But, of course I will upgrede down the line. How should I build the box, like down firing, front firing, etc...?

Thanks for the help

[dem beats 1,223]

If the Shiva comes with D4 coils, I don't see a reason why you couldn't run it! Obviously, you'll want to upgrade down the line, but for now it will work.

I would be carefull about this. Call DIYcable to confirm but I beleive it only has one terminal for speaker wire.

It is dual voice coil, but only one way of wiring. The end impedence is 3.9 I beleive.

[dem beats 1,223]

No experience with that, nor have I really heard of anyone who has used it. I'd only buy once If I were you. Pick the O Audio or the Dayton....both will do a good job.

Ok, thanks. Is there a way I could just run the Shiva-x to my Yamaha 8 ohm 100 watt amp from my current sub until I get a new amp? Of course without harming the new sub though.

Thanks

The only reason I could possibly come up with is, perhaps that amp is mapped with a specific boost or filter made specificaly for that sub. You wouldn't hurt the shiva though.

[dem beats 1,223]

If the Shiva comes with D4 coils, I don't see a reason why you couldn't run it! Obviously, you'll want to upgrade down the line, but for now it will work.

Ok, I'll try to make sure it somes in D4. But, of course I will upgrede down the line. How should I build the box, like down firing, front firing, etc...?

Thanks for the help

I would make a box with the intent to fire forward. If it doesn't make you happy, add legs to it where the baffle is, and make it down firing.

I'm no expert, but in my experience orientation makes less of a difference than placement. I have spent a few hours crawling around looking for good placement.

[dem beats 1,223]

I can't help myself.....

Here is one more option that might be really interesting to you. Look at the top subwoofer kit on this page.

http://www.creativesound.ca/

There are a few people out there who have done this now, and it's tuneable. It could provide you with a lot of options and the ability to tune your sub without needed a new box. Pluss PR's can help you take up less space.

[ABXX49 20]

I just looked and saw that it's dual 8ohm coils. That will still work, you can wire that down to 4ohm.

I've made both of my boxes down firing with a rear port. Mainly to make it a little more discreet.

[dem beats 1,223]

I just looked and saw that it's dual 8ohm coils. That will still work, you can wire that down to 4ohm.

I've made both of my boxes down firing with a rear port. Mainly to make it a little more discreet.

You are right ryan, but just to be clear. I think this means it IS 4ohms and cannot be changed. Just an FYI

Performance

Operational Specifications: With Voice coils in parallel. Measured with Praxis @ sea level,

@ 55 deg F., drive voltage >1.5V. The driver is broken-in with 12 Hours of operation with a

20Hz sine wave near full excursion. A 12AWG jumper cable is used to connect the voice

coils.

My Mael-x is done up similarly.

In later reading however, it shows a diagram for dual voice coil wiring. I would consult DIY. Just email them.

http://www.diycable.com/main/pdf/shiva_docs.pdf

[ABXX49 20]

Hmmm, interesting. Not really sure why it's done that way. (If I'm understanding it correctly.) Regardless, you'll still get a 4ohm load, so it really isn't that big of a deal.

[dem beats 1,223]

True statement Ryan. The only reason I was being specific, was the discussion kind of turned into a "if I add another one later". If the Shiva is a regular DVC sub with 2 connections, there are more amp options.

I'm completely confused. I even thought for a second I may have messed up when looking at my Maelstom's.

Kevin at DIY is THE MAN. If you shoot him an email he can clear it up.

[ABXX49 20]

That would complicate things a touch... I'd go ahead and shoot Kevin an email asking him how the VC's are set up so you can get a better idea.

How do you like your Maelstroms by the way?

[dem beats 1,223]

They are great. Make super paperweights.

Still in the box. I have been thinking about different box styles, and if I want to go PR, ported, or sealed with a ton of processing.

[my_first_account 0]

True statement Ryan. The only reason I was being specific, was the discussion kind of turned into a "if I add another one later". If the Shiva is a regular DVC sub with 2 connections, there are more amp options.

I'm completely confused. I even thought for a second I may have messed up when looking at my Maelstom's.

Kevin at DIY is THE MAN. If you shoot him an email he can clear it up.

Ok, I just emailed DIY cable about it. Do you guys want me to tell what he says, in case you want to know?

Would this sound better than the Shiva-x with the O Audio amp? And, it's actually quite a bit cheaper

http://www.creativesound.ca/details.php?model=QUARTET10

Thanks

[dem beats 1,223]

My first, I don't know about sounding "better". You will have more freedom though, and be able to most likely make a smaller box. That kit comes with everything you need accept wood and glue.

If you want to play with cabinet building more, and have more power, the shiva and O amp would be the way to go. If you want to have a smallish sub box, with options for tuning it any way you like I would go with the CSS kit.

I don't think you can go wrong either way. If a concern is output though, the shiva and O amp has the potential to get louder.

[my_first_account 0]

My first, I don't know about sounding "better". You will have more freedom though, and be able to most likely make a smaller box. That kit comes with everything you need accept wood and glue.

If you want to play with cabinet building more, and have more power, the shiva and O amp would be the way to go. If you want to have a smallish sub box, with options for tuning it any way you like I would go with the CSS kit.

I don't think you can go wrong either way. If a concern is output though, the shiva and O amp has the potential to get louder.

Sorry, I should have defined what I meant by sounding better. What I mean is, which kit would be able to handle the low frequencies better as in louder and cleaner without bottoming out?

Also, what I was thinking about doing with the Shiva-x, if the box is big enough, is instead of getting the O Audio amp, could I just get 2 Dayton SA240 watt amps and have it equal close to the output of the O Audio amp?

Thanks

[dem beats 1,223]

Did Kevin tell you if the Shiva has it's voice coils hard wired or are there 2 sets of terminals?

[my_first_account 0]

Did Kevin tell you if the Shiva has it's voice coils hard wired or are there 2 sets of terminals?

Here's what he said, and what I asked him:

Most of the OEM subs are small, and require equalization in order to achieve good performance. They also tend to have very steep subsonic filters that are set high (30Hz or so). That means they just won't work with the Shiva in our recommended boxes. I'd not even waste your time on it. The PE 500W Bash amp is a good solution for the money. Kevin Haskins

DIYCable Inc.

175 South Bay View Ave. Unit 23

Ph: 360-452-9373

www.diycable.com

----- Original Message ----- From: Dylan Rodriguez To: Kevin Haskins Sent: Thursday, April 16, 2009 3:41 PMSubject: Re: Shiva-x Subwoofer

What is tons of EQ? And, if I do get this sub, I will get a O Audio 500 watt amp or a Dayton 240 watt amp later on down the road. Thanks,Dylan

--- On Thu, 4/16/09, Kevin Haskins <[email protected]> wrote:

From: Kevin Haskins <[email protected]>

Subject: Re: Shiva-x Subwoofer

To: [email protected]

Date: Thursday, April 16, 2009, 3:40 PM

You won't harm the driver. If it is designed around an 8-ohm load you might damage the amp. It also likely has tons of EQ so it will most likely be a horrible solution to drive the Shiva. Kevin Haskins

DIYCable Inc.

175 South Bay View Ave. Unit 23

Ph: 360-452-9373

www.diycable.com

----- Original Message ----- From: Dylan Rodriguez To: [email protected] Sent: Thursday, April 16, 2009 1:43 PMSubject: Shiva-x Subwoofer

Hello, I am thinking about getting the Shiva-x subwoofer to replace my Yamaha 10" home theater sub. But, I have a question about it. If I get the Shiva-x, can I hook it up to my current Yamaha sub's amplifier without it harming the Shva-x sub? As far as I know, most home theater subs are 8 ohm, and my other Yamaha 8" sub is an 8 ohm, so I am assuming that mine is too, and I see that the Shiva-x has dual 8 ohm Voice Coils. Thanks

Anything else I need to ask him about it?

Thanks

[dem beats 1,223]

I would go with what he said. Pick up the parts express 500 or the O audio, and the shiva.

You will be in great shape. He didn't really answer the question I was telling you to ask, but everything he said is true.

[my_first_account 0]

I would go with what he said. Pick up the parts express 500 or the O audio, and the shiva.

You will be in great shape. He didn't really answer the question I was telling you to ask, but everything he said is true.

Ok, I think I will get the Shiva-x, but I have just a few more questions.

Would the Shiva-x hit harder in Rock songs, or the CSS Kit?

Which would be able to pick up the lows in songs like KMK, and be able to handle them really loud?

Also, my room is a square (obviously) should I put the sub in the corner? There is exactly 19 inches between my floor bordes, and my dresser. And I have carpet, if that matters any... Anyways, would it be better to put the new sub by my wall unit that is 56 inches away from the side wall?

Also, what kind of crossover do I need to get? Any good brands for that also?

Thanks

[my_first_account 0]

Can anyone tell me if the CSS Kit that includes the 10" driver, 2 PR's, and the 300W amp would sound better than a Shiva-x with a Dayton SA240 watt amp? By sounding better, I mean that it will hit harder in Rock songs, and be able to handle the lows in songs like Down 4 T h a Krown, and some bass testers songs like Bass I Love You, and Beats for My Van. Any help?

Thanks for all of the help so far. Been a great help. If I didn't come here, I probably would have just got the 2 Kicker Comps and been unhappy...

[my_first_account 0]

How big is a 6 cu. ft. box? Designed as a cube, if possible...

Thanks

[ABXX49 20]

A 2' cube is 8 cubic feet. So that will just give you a rough estimate.

[ABXX49 20]

Can anyone tell me if the CSS Kit that includes the 10" driver, 2 PR's, and the 300W amp would sound better than a Shiva-x with a Dayton SA240 watt amp? By sounding better, I mean that it will hit harder in Rock songs, and be able to handle the lows in songs like Down 4 T h a Krown, and some bass testers songs like Bass I Love You, and Beats for My Van. Any help?

Thanks for all of the help so far. Been a great help. If I didn't come here, I probably would have just got the 2 Kicker Comps and been unhappy...

How something sounds will be completely dependent on the box. I, still, would get the Shiva-x and port it to about 20-25Hz.

[my_first_account 0]

Can anyone tell me if the CSS Kit that includes the 10" driver, 2 PR's, and the 300W amp would sound better than a Shiva-x with a Dayton SA240 watt amp? By sounding better, I mean that it will hit harder in Rock songs, and be able to handle the lows in songs like Down 4 T h a Krown, and some bass testers songs like Bass I Love You, and Beats for My Van. Any help?

Thanks for all of the help so far. Been a great help. If I didn't come here, I probably would have just got the 2 Kicker Comps and been unhappy...

How something sounds will be completely dependent on the box. I, still, would get the Shiva-x and port it to about 20-25Hz.

Ok, I think that's what I'm going to get. But the amp is going to be the Dayton SA240 watt amp with no bass boost. Also if I don't like this amp, I can always get the O Audio 500w amp for my birthday

What kind of crossovers should I get?

Thanks

[Solid_State13 1]

those plate amps will have crossovers in them

[my_first_account 0]

those plate amps will have crossovers in them

Ok, so even though the amps' xover only go down to 40hz, I won't need any crossover board to get it down to 20 or so hz?

Thanks for the help

Edited April 19, 2009 by my_first_account