Building your own speakers

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Building your own speakers

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djfreemc djfreemc is a male

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follow a course in woodshop, use big ass screws that are specifically made for wood, ...

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13-04-2005 20:37

Friscko Friscko is a male

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and now about how to let the place tremble
how ya make the subs make dem bass ya can really feel, without needing to put them very loud?
Big "basskist"?

Big box?

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This post has been edited 1 time(s), it was last edited by Friscko: 13-04-2005 20:47.

13-04-2005 20:45

dirk
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quote:

and now about how to let the place tremble

Those subhorns on that diy page mentioned somewhere else on this forum can do that

But instead of diy you can buy some sec.hand active pa stuff , that will be ( much? ) better quality and much smaller

Greetings Dirk .

13-04-2005 21:28

Friscko Friscko is a male

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Isnt it cheaper to build it your self?
And it is so cool to be able to say you've built yer own soundsystem

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13-04-2005 21:38

cory
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i have a 35hz basshorn that i built, thats definatly low enough for DnB, but if u are using it for home theater use, you should build a 29hz basshorn. lets just say my 35hz basshorn shakes half the house, and im only playing it with an 80 watt sub amp!

and yes it is cheaper to DIY, as u can see in my second pic, i built the boxes for my mains and i buiilt the basshorn

http://www.geocities.com/darth_sanchez/DSC00278.JPG
http://www.geocities.com/darth_sanchez/DSC00282.JPG

14-04-2005 11:00

thechronic thechronic is a male

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Did you use a 12" woofer for that?

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14-04-2005 11:10

cory
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yeah, thats a pioneer TS-W305c 12" sub, a car sub modeled by my mate in NZ who designed the horn for me

15-04-2005 05:29

dirk
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quote:

Did you use a 12" woofer for that?

Your pretty fond of those 12" woofers , why ?

Greetings Dirk .

15-04-2005 06:38

Halph-Price Halph-Price is a male

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Freud would say because he feels he needs to compansate.

that and the neighbours complains?

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15-04-2005 07:20

Friscko Friscko is a male

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I only have 2*125W on my room, and when i'm spinnin my dad already complains about the bass!!?? Huh

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15-04-2005 22:09

thechronic thechronic is a male

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I don't like 15" woofers and larger ones Wink

There are only a few good 15" woofers (especially in expensive farfield studio monitors) but you need a really good amp to drive them properly and their rubbers are so soft you can blow them easily.

2x12 or 4x10 is the way to go if you want to build your own Big Grin

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16-04-2005 02:40

dirk
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The difference in speakersize has to do with the frequency range in wich they have to opperate .

Big speakers can't operate at high frequency's and small speakers can't operate at low frequency's and you alway's have to have a decent amp to drive speakers .

If you compare a 12"woofer with a simular 18"woofer ( just a difference in surface area same magnet ect... ) the 18" will have cone breakup at lower freq. than the 12" . But it will also have a lower resonance freq. and will produce more lower freq. than the 12" model .

So in practice I do ( sort of ) agree with you but not in theory .

Greetings Dirk .

16-04-2005 07:05

thechronic thechronic is a male

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Yeah but I'm not talking about single speakers but about coupled ones.

A coupled 4x10 has a much deeper frequency response than a single 15" and sounds much better.

Due to acoustic coupling they can push larger wavelengths and can generate the same frequencies as a much larger speaker (would be around 20-22" I guess) + the individual speakers are smaller so they can move quicker and sound more precise. So you get the frequency response of a 20-22" and the quickness and detail of a 10". win-win Tongue

Why do you think most pro audio speaker manufacturers don't make models with 15" woofers anymore? If you ever have the chance to compare a 1x15 with a 4x10 you will be amazed in the difference in sound quality and detail Wink

BTW for people who don't know what I mean by 4x10 etc, a 4x10 is a subwoofer with 4 speakers of 10". A 2x12 has 2 speakers of 12".

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16-04-2005 12:31

dirk
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I think 013 in Tilburg has a very good soundsystem and they use 21" woofers for their subs last time I checked . ( 30Hz - 40hz ) They don't have to be fast because they don't have to transmit high frequency's . For the quikness and detail they use ofcause smaler speakers .

The big advantage of coupled speakers is that they can be used with a larger frequency range . But two 10"woofers are more expencive than one 15" ( about the same surface area )

For high bass spl you simply need lots of speaker area and there are two somewhat different way's of getting there . I can't say that one is better than the other , they both have their pro's and con's .

Me as a bass player would alway's go for the 4x10" ( Jaco Pastorius , my hero , used a 18" horn speaker for his sound btw )

Greetings Dirk .

This post has been edited 2 time(s), it was last edited by dirk: 16-04-2005 23:19.

16-04-2005 20:41

Friscko Friscko is a male

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Thats for bass..
What for mid and hi?

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20-04-2005 19:26

dirk
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If you want a Diy Pa system : for hi a 1-2" compression driver with horn and then a 12" or 2x10" for mid and two 18"subhorns for bass per side but thats what I would do.

If you want a studio monitor ???

Greetings Dirk

20-04-2005 20:32

Friscko Friscko is a male

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so thats mt102 and 1850 horns from speakerplans?

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20-04-2005 20:39

dirk
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Yes

Greetings Dirk.

21-04-2005 09:08

thechronic thechronic is a male

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[offtopic]

quote:

Originally posted by dirk
I think 013 in Tilburg has a very good soundsystem and they use 21" woofers for their subs last time I checked . ( 30Hz - 40hz ) They don't have to be fast because they don't have to transmit high frequency's . For the quikness and detail they use ofcause smaler speakers .

They don't have to be fast to transmit high frequencies, but they have to be fast to track the low frequencies accurately. If they are slow the waveforms are distorted, a sine wave will become more like a saw. With smaller speakers in an array they respond quicker to the changes in the waveform, ie they follow the bass frequencies closer, result: better sound and lower distortion. With 12" woofers you can get results of like 0.05% THD distortion at full power, which results in a pretty damn good sound.

Like I said anything above 15" is basically outdated technology and not suited for the music of today, unless you have a taste for muddy sounding bass Wink

I have done live sound for 11 years now, I have mixed around 500 concerts in around 100 different locations. If I mix on a system with large subwoofers the whole low end is screwed up, it's like having to work with Behringer EQ, you know that what you are doing is right but it just comes out wrong. Luckily nowadays these stupid subs are hard to find, only cheap ass nitwit PA companies still have them, and they are usually 15 years old.

BTW if you check the specs of high end PA subwoofers like the JBL Vertec range (one of the best speaker sets I've ever heard) you'll see that the 15" ones go way deeper (22-125Hz) than the 18" ones (28-75 Hz). The 18" are more for giving a visual impression imo, and I haven't seen any companies that have these ones for rental Wink

PA subwoofer specs:
http://www.jblpro.com/vertec1/new_vertec/pdf/VT4881.pdf
http://www.jblpro.com/vertec1/new_vertec/pdf/VT4880_sub.pdf

For the studio the sound quality is ofcourse much more critical, which is why even 15" woofers are rarely used. Top quality brands use subwoofers ranging from 8" to 12".

Sometimes you can find good 15" subwoofers in the studio (such as the Quested VS1115B), but these need such good components to give a decent sound that they become very expensive (typically above 7000 euro).

If you think an 8" is too small to generate bass, check out the specs of eg the Genelec 7050a: With a single 8" woofer it has a frequency response of 38-85Hz with 100dBSPL. It's not that much I agree, but it is their cheapest model and meant to complement small nearfields in a home studio.

The Genelec 7073a uses a 4x12: 19-85Hz - 124dBSPL - THD 0.05%.
Yes you read that correctly: down to 19Hz with only 0.05% distortion at a bone crunching 124dB at 1m distance!!!! Shocked

try that with a 21" Big Grin

http://www.genelec.com/pdf/DS7073a.pdf

BTW here is a list of common studio subwoofers: there is only one 15" listed in there: http://www.sweetwater.com/store/category/c407/

Now if I hear you say again that you think 18" is the way to go I will forever doubt your hearing Big Grin

[/offtopic]

So if you want to build your own speakers, take my advice and don't use any woofers larger than 15", preferably 12".
That is if you are more interested in the sound than the looks Wink

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21-04-2005 12:13

Friscko Friscko is a male

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quote:

Originally posted by thechronic
[offtopic]
If you think an 8" is too small to generate bass, check out the specs of eg the Genelec 7050a: With a single 8" woofer it has a frequency response of 38-85Hz with 100dBSPL. It's not that much I agree, but it is their cheapest model and meant to complement small nearfields in a home studio.

[/offtopic]

I've got a subwoofer and its about cd size..
Could i still make a good woofer with it?
Like building it in a horn or something?

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This post has been edited 1 time(s), it was last edited by Friscko: 21-04-2005 17:02.

21-04-2005 17:00

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