Help i'm on a budget!!!!

Dannyball · 2004-05-24 5:52 pm

Hi everyone. I am new to speakers and stuff and I am building my own sub. What i am having truoble with is finding the right sub speaker. Can you guys help? I want one under £40 , nice and loud, give a good vibration, good omff and be able to hear it from all round the niebourhood.

I have seen this one: http://www.maplin.co.uk/products/module.as...&moduleno=36764 is that any good?

This is what's going to be driving the sub: http://www.st-and.demon.co.uk/Audio/armstrong.html It is th 621 amp

sreten · 2004-05-24 10:42 pm

http://maplin.co.uk/products/module.asp?CartID=040524221334116&moduleno=36764

is a link that works, its a car subwoofer and hard to recommend.

Your amplifier link is confusing, is this your main amplifier
or an amplifier lying around you want to use for the sub ?

sreten.

Timn8ter · 2004-05-24 10:44 pm

Your link doesn't work. You may want to check out Eminence or Peerless. Not sure if it's in your price range or not. Many of the drivers listed at Maplin look like they have high Fs.

454Casull · 2004-05-25 12:36 am

40W won't give you much volume...

Dannyball · 2004-05-25 9:43 am

I am using the amplifier to drive the sub and the input for the amp will come from my sourround sound. I know one of you said that 40w isn't going to give me much power but it is in the old scale and i am going to link up two of the outputs to make 80w (has anyone tried thiss before?)

By the sound of the replys i don't think the car sub is to hot. Do you guys have any other ideas or links to "better" speakers to use?

Thanks for the help so far

Dannyball · 2004-05-25 9:47 am

Also i really want that thump ringing through the house during the beats in my music and explosions in a film.

Thanks for any help

Also i have that WinISD programme for my PC how reliable is that for making the cabinate?

sreten · 2004-05-25 10:52 am

The simplest way of using both amplifier channels is using
two drivers, in parallel for high volume, or isobaric for a
small sub with more modest volume capability.

Though if you add say 0.33R series resistors to each channel
you could probably drive a 4 ohm subwoofer with the channels
in parallel. Do not connect the channels directly together.

Could use two of these isobaric (clamshell) ~ 60L tuned to ~ 28Hz :

http://www.bkelec.com/Diy/BSB12100.htm

sreten.

Dannyball · 2004-05-25 5:54 pm

So for each output have a seperate speaker??????????

Sorry for being a bit ignorant but i'm new to this.

454Casull · 2004-05-25 8:24 pm

sreten said:
The simplest way of using both amplifier channels is using
two drivers, in parallel for high volume, or isobaric for a
small sub with more modest volume capability.

Though if you add say 0.33R series resistors to each channel
you could probably drive a 4 ohm subwoofer with the channels
in parallel. Do not connect the channels directly together.

Could use two of these isobaric (clamshell) ~ 60L tuned to ~ 28Hz :

http://www.bkelec.com/Diy/BSB12100.htm

sreten.

That waterfall plot is hilarious.

sreten · 2004-05-25 9:05 pm

Dannyball said:
So for each output have a seperate speaker??????????

Sorry for being a bit ignorant but i'm new to this.

Yup. Other options are a dual voice coil woofer, paralleling the
channels as detailed and theorectically bridging the channels
but I don't think the latter would work well.

Paralleling the channels (via 0.3 ohm resistors) and a 4 ohm
12" speaker reflexed in a say 2cuFt ( 55/60L) cabinet looks
about the easiest, but I don't know a source of good cheap
subwoofer drivers in the UK.

sreten.

Dannyball · 2004-05-25 11:00 pm

Thanks for your help sp far now what should i go for?

2 of these together:

http://www.maplin.co.uk/products/module.asp?CartID=040524160456704&moduleno=24757&Products=1

Or one of the above
Or one of these:

http://www.bkelec.com/Diy/BSB12100.htm

Or one of these:

http://www.maplin.co.uk/products/module.asp?CartID=040525224658906&moduleno=36764

Remember i want some good omff, lots of vibration and be able to feel it!

Dannyball · 2004-05-25 11:07 pm

454Casull said:
That waterfall plot is hilarious.

Wa??

sreten · 2004-05-26 12:18 am

Dannyball said:
Thanks for your help sp far now what should i go for?

2 of these together:

http://www.maplin.co.uk/products/module.asp?CartID=040524160456704&moduleno=24757&Products=1

Or one of the above
Or one of these:

http://www.bkelec.com/Diy/BSB12100.htm

Or one of these:

http://www.maplin.co.uk/products/module.asp?CartID=040525224658906&moduleno=36764

Remember i want some good omff, lots of vibration and be able to feel it!

sreten said:
Could use two of these isobaric (clamshell) ~ 60L tuned to ~ 28Hz :

http://www.bkelec.com/Diy/BSB12100.htm

sreten.

sreten · 2004-05-26 12:22 am

454Casull said:
That waterfall plot is hilarious.

Dannyball said:
Wa??

Have to agree with 454C,

sreten.

jleaman · 2004-05-26 1:32 am

454Casull said:
40W won't give you much volume...

Bull crap.. it is never the amount of power for volume.. it is box and efficiency. i had a older pair of radio shack speakers that out performed a pair of verwin vegga's and the radio shack ones were 90x cheaper too..

never say power is the main reason.. it is all box and speaker efficiency

i was so impressed when planet10 showed me these little 4" speakers perform Man what a performance they did... i then realized that size and power means nothing...

of course you cant power a concert with 4" speaker's..

Dannyball · 2004-05-26 8:27 am

sreten said:

I don't have £50 :bawling:

Would just one of them do with the two outputs from the amp joined or sumthing?

My budget is £40 for the speaker itself so what should i do?

Thanks for your help again but could you speak a little more in english, i'm still only on GCSE physics :dead:

Dannyball · 2004-05-26 11:12 am

Just seen this:

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=295-485

What about that?

How am i meant to campare the speakers on WinISD i havn't a clue what the graphs mean :dead:

sreten · 2004-05-26 12:03 pm

As ever bigger is better :

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=295-490

but it will need a bigger box.

The 10" DVC is very good value though.

Can they be imported economically ?

sreten.

454Casull · 2004-05-26 12:16 pm

JasonL said:
Bull crap.. it is never the amount of power for volume.. it is box and efficiency. i had a older pair of radio shack speakers that out performed a pair of verwin vegga's and the radio shack ones were 90x cheaper too..

never say power is the main reason.. it is all box and speaker efficiency

i was so impressed when planet10 showed me these little 4" speakers perform Man what a performance they did... i then realized that size and power means nothing...

of course you cant power a concert with 4" speaker's..

Tell me how you are going to make a subwoofer be heard from "all around the neighbourhood" with 40W with a budget of 50 pounds?

baggystevo82 · 2004-05-26 12:26 pm

Tell me how you are going to make a subwoofer be heard from "all around the neighbourhood" with 40W with a budget of 50 pounds?

And to be done by a newcomer too, I don't really think horn loading and TL's would be a good introduction to speaker building, and would probably end up larger than this chap wants.

Steve

Help i'm on a budget!!!!

Member

R.I.P.

Member

Member

Member

Member

R.I.P.

Member

Member

R.I.P.

Member

Member

R.I.P.

R.I.P.

Banned

Member

Member

R.I.P.

Member

Member