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Topic with many replies

Create your own festival stereo


Author Message
Written on: 25.11.2011 23:24
Hegner
Posts: 25
Saturnus wrote:

Hegner wrote:

Jamen det ser fint ud, også prisen ser helt fin ud icon_smile.gif hvis du er frisk på udfordringen, så er der budget til at bygge det med 6-8 af de subs? og en større satellit? ikke at det er nødvendigt, men vi har jo allerede lagt en masse penge til side, og som det ser ud nu, så kommer vi kun til at bruge halvdelen på den setup du forslår?

Med hensyn til lys, så var vores plan bare at smide en LED ledning under vognen, det kan vel ikke trække det helt store?

Hvis du gider det ville det rigtig lækkert, når vi er kommet frem til det endelige design, så laver vi en tegning også for vi lavet de store 'turbog' plader hos en snedker icon_smile.gif


Med alt det geil i skal have så skal de penge i har sparet på anlægget nok få ben at gå på. Hvis I ikke lige har en mekanikker ved hånden så skal jo købes en solid vogn i 3000-4000 kroners klassen som base som skal bygges fuldstændig om. Så skal der lys, både LED kæder, spots og strobes, solceller, forstærkere, kabler, 12V lyscomputer, hele svinet skal bygges, og males, og så lige en proffesional stripperstang som prikken over i'et.



Onkel er smed og min bror er tømre, så vognen er på plads.
Til at starte med bygger vi lyd systemet, og når det spiller 100% som vi vil have det, så begynder vi og tænke på lys og geil icon_smile.gif Stripper stangen er ikke et problem, det er bare 2.5 meter 3" rustfri jern rør, med et beslag i bunden, det svejser min onkel sammen.
Written on: 29.11.2011 18:51
Hegner
Posts: 25
Fik du lavet nogen tegninger Saturnus?
Written on: 29.11.2011 20:52
Saturnus
Posts: 3047
Jeg arbejder på det icon_biggrin.gif

Det umulige klarer jeg fra dag til dag. Mirakler tager som regel lidt længere.
Written on: 30.11.2011 09:20
Hegner
Posts: 25
Saturnus wrote:

Jeg arbejder på det icon_biggrin.gif

Det umulige klarer jeg fra dag til dag. Mirakler tager som regel lidt længere.


Den vil jeg huske icon_biggrin.gif
Written on: 30.11.2011 18:04
Saturnus
Posts: 3047
Ok. I started with the hard part. The satellite but that's not complete yet. So instead I got together this concept drawing so you know roughly what I'm considering

http://sketchup.google.com/3dwarehouse/details?mid=ab14e3fa9e343e74d421ffb972735edc

The concept is that the satellite is then going to be a flattened sphere the size of the crown part on top of the pole, and that will contain all the satellite speakers playing in 4 directions. On the top part of the sphere there will be solar cells from a 20W foldable solar panel taken apart and distributed even. On the bottom part of the sphere there'll be all the lights for lightshow like strobes and spots. All wires will be routed through the pole.

A little note on the concept drawing. This is just to show rough dimensions but the important part is that there's room 4 12" subs. And the large wheels that is going on it. I'm figuring roughly 15" wheels on a heavy duty axel. The swivel wheels go on the "crown" part with the swivel point exactly in the midpoint of the 2 ellipses. Battery will then go in the remaining part under the piedestal. Not even sure if I like the piedestal as is now. Probably better just with 2 steel tubes holding a table with that shape suspended. The piedestal table is meant for mixing and controlling lights, btw.

[This article was edited 2 times, at last 30.11.2011 at 18:05.]
Written on: 01.12.2011 08:38
Hegner
Posts: 25
Saturnus wrote:

Ok. I started with the hard part. The satellite but that's not complete yet. So instead I got together this concept drawing so you know roughly what I'm considering

http://sketchup.google.com/3dwarehouse/details?mid=ab14e3fa9e343e74d421ffb972735edc

The concept is that the satellite is then going to be a flattened sphere the size of the crown part on top of the pole, and that will contain all the satellite speakers playing in 4 directions. On the top part of the sphere there will be solar cells from a 20W foldable solar panel taken apart and distributed even. On the bottom part of the sphere there'll be all the lights for lightshow like strobes and spots. All wires will be routed through the pole.

A little note on the concept drawing. This is just to show rough dimensions but the important part is that there's room 4 12" subs. And the large wheels that is going on it. I'm figuring roughly 15" wheels on a heavy duty axel. The swivel wheels go on the "crown" part with the swivel point exactly in the midpoint of the 2 ellipses. Battery will then go in the remaining part under the piedestal. Not even sure if I like the piedestal as is now. Probably better just with 2 steel tubes holding a table with that shape suspended. The piedestal table is meant for mixing and controlling lights, btw.

I like the design. The piedestal is looking good to, but i just dont think that people can se what it's icon_smile.gif
Written on: 01.12.2011 08:46
Hegner
Posts: 25
And we are considering building 2 portable HD 15 Horn, so when we are going to throw a BIG party, we can use them, they are going to run on a separate amp9 with speakon cables.
Written on: 01.12.2011 17:04
Saturnus
Posts: 3047
Hegner wrote:

And we are considering building 2 portable HD 15 Horn, so when we are going to throw a BIG party, we can use them, they are going to run on a separate amp9 with speakon cables.


Might wanna hold on that until you actually hear the system. The 4 12" woofers with the special tuning that's going to be used can actually produce up to 129 dB in peaks on the amp9 with a 24V supply between 60 and 180 Hz. A pair of HD15s wouldn't really add too much. Let's not disgard the idea of an added mid-woofer entirely either but I wouldn't recommend an HD15 to combine with the set-up I've suggested.
Written on: 02.12.2011 09:06
Hegner
Posts: 25
Saturnus wrote:

Hegner wrote:

And we are considering building 2 portable HD 15 Horn, so when we are going to throw a BIG party, we can use them, they are going to run on a separate amp9 with speakon cables.


Might wanna hold on that until you actually hear the system. The 4 12" woofers with the special tuning that's going to be used can actually produce up to 129 dB in peaks on the amp9 with a 24V supply between 60 and 180 Hz. A pair of HD15s wouldn't really add too much. Let's not disgard the idea of an added mid-woofer entirely either but I wouldn't recommend an HD15 to combine with the set-up I've suggested.


Well you are the expert icon_smile.gif
Written on: 20.12.2011 23:30
Mafi
Posts: 9
Dear all

We build a simple Festival Stereo for 2011 with a TA-2020-amp, JBL-speakers and a 75ah battery.

It was playing fine, but sometimes - and mostly due to loud neighbours - it wasn't loud enough.

Is there any way to improve "loudness" on our stereo without buying tons of new stuff??

Thanks in advance and happy holidays! icon_smile.gif

Current Amp:
http://www.ebay.com/itm/LATEST-TA2020-T-Amp-Class-Stereo-Amplifier-20Wx2-Power-/130606074030?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item1e68ba88ae

Current speakers:
http://www.thansen.dk/product.asp?c=6222537183&n=-1292987144&pn=-1290436611

Written on: 21.12.2011 18:41
Ruben
Posts: 69
Mafi wrote:

Dear all

We build a simple Festival Stereo for 2011 with a TA-2020-amp, JBL-speakers and a 75ah battery.

It was playing fine, but sometimes - and mostly due to loud neighbours - it wasn't loud enough.

Is there any way to improve "loudness" on our stereo without buying tons of new stuff??

Thanks in advance and happy holidays! icon_smile.gif

Current Amp:
http://www.ebay.com/itm/LATEST-TA2020-T-Amp-Class-Stereo-Amplifier-20Wx2-Power-/130606074030?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item1e68ba88ae

Current speakers:
http://www.thansen.dk/product.asp?c=6222537183&n=-1292987144&pn=-1290436611




You should definately get some other speakers for the following reasons:

1. There are no specifications on how your speaker cabinet should be designed. So the box for your speakers could be anything and thus your current box is probably not suited for the speaker. However, you can easily calculate on PA speakers like the P. Audio HP-10W as Saturnus uses for his boominator. Getting the right cabinet design doesn't make you play that much louder though bort it's sort of connected to number 2.

2. Car speakers often cap at around 90 dB SPL, which is the speaker's sensitivity, even though something else is stated on the "datasheet" on T-hansen's website. Saturnus mentioned this earlier in the thread. Getting speakers with higher sensitivity will let you play louder at the same amount of power delivered from the amplifier.

3. Don't use car speakers icon_razz.gif There are other way better (and sometimes cheaper) possibilities.

You could eventually sell your current stereo to some random dudes and make a new one for the money you earn. A lot of clueless people are willing to buy anything that can deliver music to their camp at the festival.

You should buy the same type of AMP again though icon_smile.gif I hope this is of some help.
Written on: 22.12.2011 01:03
Mafi
Posts: 9

You should definately get some other speakers for the following reasons:

1. There are no specifications on how your speaker cabinet should be designed. So the box for your speakers could be anything and thus your current box is probably not suited for the speaker. However, you can easily calculate on PA speakers like the P. Audio HP-10W as Saturnus uses for his boominator. Getting the right cabinet design doesn't make you play that much louder though bort it's sort of connected to number 2.

2. Car speakers often cap at around 90 dB SPL, which is the speaker's sensitivity, even though something else is stated on the "datasheet" on T-hansen's website. Saturnus mentioned this earlier in the thread. Getting speakers with higher sensitivity will let you play louder at the same amount of power delivered from the amplifier.

3. Don't use car speakers icon_razz.gif There are other way better (and sometimes cheaper) possibilities.

You could eventually sell your current stereo to some random dudes and make a new one for the money you earn. A lot of clueless people are willing to buy anything that can deliver music to their camp at the festival.

You should buy the same type of AMP again though icon_smile.gif I hope this is of some help.



Awesome - thanks!

Can I use these piezos with the HP-10W and the TA-2020 or do you recommend anything else?
http://www.discoworld.dk/product_info.php?products_id=9597

And what do I need to be aware of, when I build my stereo?? Like air tightness, measurements and so on?

[This article was edited 2 times, at last 22.12.2011 at 01:17.]
Written on: 24.12.2011 01:21
chr kors
Posts: 54
Hey Mafi

Ruben is right. Car speakers are generally not suited for festival steroes.

The easy way for you to play much louder, would be to buy two PA speakers with sensitivity of 99dB.
Preferably with 15'' woofers.
I would also upgrade the amp to 2x50watts or more.

Ive linked to an option beneath.

http://djz.dk/interaktivt/marked/annonce/31950/

With such a pair of speakers you would be able to play much louder. They are pretty big, but generally big speakers will give you more loudness.
If you want something smaller yet pretty loud, I guess Saturnus has something up his sleeve.
However, Saturnus solutions are more time consuming than buying those two 15'' Ive linked to icon_smile.gif
It all depends on your level of dedication and ambitions
Written on: 25.12.2011 16:41
Storgaard
Posts: 4
Hey Saturnus great work on this post, really love it.

I have some questions I hope you will answer.

1. How many liters should a cabinet be to a HP10W (with bass tube / reflex) ?

2. I'd love to use solar cells, but I am unsure about how to connect solar cell to the battery so that the battery is charged while it is being used by the unit.

3. And is there a newer solar cell you want to recommend than the one from your first post: http://www.conrad.nl/goto.php?artikel=855360

I am going to build this ghetto blaster in size 2m x 1.5m x 0.6m http://img529.imageshack.us/img529/5572/img0953p.jpg
on wheels.

with: 4xHP10W 4xpiezo and the amp6 and that solar cell.

what do you think? all help is appreciated icon_smile.gif

[This article was edited 4 times, at last 27.12.2011 at 22:42.]
Written on: 27.12.2011 23:22
Kasper Lund
Posts: 9
Storgaard wrote:

Hey Saturnus great work on this post, really love it.

I have some questions I hope you will answer.

1. How many liters should a cabinet be to a HP10W (with bass tube / reflex) ?

2. I'd love to use solar cells, but I am unsure about how to connect solar cell to the battery so that the battery is charged while it is being used by the unit.

3. And is there a newer solar cell you want to recommend than the one from your first post: http://www.conrad.nl/goto.php?artikel=855360

I am going to build this ghetto blaster in size 2m x 1.5m x 0.6m http://img529.imageshack.us/img529/5572/img0953p.jpg
on wheels.

with: 4xHP10W 4xpiezo and the amp6 and that solar cell.

what do you think? all help is appreciated icon_smile.gif


if you are going to get 4xhp10w's then just go for the boominator icon_smile.gif - http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine.html

Saturnus designed that monster so you know that it's done properly. If you got the time i will recommend you to read the entire thread. If you are lazy you can read this part of the thread
http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine-248.html

as to you soloar cell question: dont worry too much about that.. if you get the solar cell you linked you simply just connect it to your battery in parrallel with the batteris.. just make sure NEVER! to connect them directly to the amp6 without the batteries in parrallel.
Written on: 28.12.2011 01:59
Storgaard
Posts: 4
Kasper Lund wrote:

Storgaard wrote:

Hey Saturnus great work on this post, really love it.

I have some questions I hope you will answer.

1. How many liters should a cabinet be to a HP10W (with bass tube / reflex) ?

2. I'd love to use solar cells, but I am unsure about how to connect solar cell to the battery so that the battery is charged while it is being used by the unit.

3. And is there a newer solar cell you want to recommend than the one from your first post: http://www.conrad.nl/goto.php?artikel=855360

I am going to build this ghetto blaster in size 2m x 1.5m x 0.6m http://img529.imageshack.us/img529/5572/img0953p.jpg
on wheels.

with: 4xHP10W 4xpiezo and the amp6 and that solar cell.

what do you think? all help is appreciated icon_smile.gif


if you are going to get 4xhp10w's then just go for the boominator icon_smile.gif - http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine.html

Saturnus designed that monster so you know that it's done properly. If you got the time i will recommend you to read the entire thread. If you are lazy you can read this part of the thread
http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine-248.html

as to you soloar cell question: dont worry too much about that.. if you get the solar cell you linked you simply just connect it to your battery in parrallel with the batteris.. just make sure NEVER! to connect them directly to the amp6 without the batteries in parrallel.


Thanks Kasper Lund
Written on: 29.12.2011 11:49
Phaedras
Posts: 42
Storgaard wrote:

Hey Saturnus great work on this post, really love it.

I have some questions I hope you will answer.

1. How many liters should a cabinet be to a HP10W (with bass tube / reflex) ?

Approx 30 liters gross when using 2 woofers in each chamber as in the Boominator. Then you subtracts woofers, tweeters, handles etc etc and end up somewhere around 23 liters in the boominator with a tuning of around 82hz.

2. I'd love to use solar cells, but I am unsure about how to connect solar cell to the battery so that the battery is charged while it is being used by the unit.

If you're using a 12v solar panel of 10-15-20W then just connect it straight to the battery: + to + and - to -.. The internal impedance of the battery will make sure you do not blow the amp even though the panel produces more than it can handle.

3. And is there a newer solar cell you want to recommend than the one from your first post: http://www.conrad.nl/goto.php?artikel=855360

I am going to build this ghetto blaster in size 2m x 1.5m x 0.6m http://img529.imageshack.us/img529/5572/img0953p.jpg
on wheels.

Are you kidding? icon_smile.gif This is a size comparison of what you want to build compared to a standard boominator - and it won't play louder just cause its bigger:

http://img641.imageshack.us/img641/5649/boominatorvsother.jpg

with: 4xHP10W 4xpiezo and the amp6 and that solar cell.

what do you think? all help is appreciated icon_smile.gif
Written on: 02.01.2012 14:12
Storgaard
Posts: 4
Thanks for the reply Phaedras.

I know it's big compare a boominator, but i have a handcart (trækvogn) 2x1 meters and it would be a shame not to use it. I don't know what to use instead of boominator it works so well. Do you have some ideas for what I should use?

Written on: 02.01.2012 15:14
Phaedras
Posts: 42
Storgaard wrote:

Thanks for the reply Phaedras.

I know it's big compare a boominator, but i have a handcart (trækvogn) 2x1 meters and it would be a shame not to use it. I don't know what to use instead of boominator it works so well. Do you have some ideas for what I should use?




Well, how about building a boominator? icon_smile.gif

Just cause you have a large handcart, doesn't mean you have to build a HUGE boom box.. How about building something small that works, save your back from carrying a house and use the handcart for beer and luggage? icon_smile.gif

Written on: 02.01.2012 20:25
Kasper Lund
Posts: 9
Phaedras wrote:

Storgaard wrote:

Thanks for the reply Phaedras.

I know it's big compare a boominator, but i have a handcart (trækvogn) 2x1 meters and it would be a shame not to use it. I don't know what to use instead of boominator it works so well. Do you have some ideas for what I should use?




Well, how about building a boominator? icon_smile.gif

Just cause you have a large handcart, doesn't mean you have to build a HUGE boom box.. How about building something small that works, save your back from carrying a house and use the handcart for beer and luggage? icon_smile.gif

That was my Roskilde Setup excactly - as i said before.. save yourself the time and stop thinking more about it! build an excact copy of the boominator!


[This article was edited 1 times, at last 02.01.2012 at 20:26.]
Written on: 17.01.2012 00:05
Hegner
Posts: 25
Hej Saturnus.
Vidste ikke lige hvor jeg ellers skulle skrive til dig henne.
Jeg tænkte på om du havde nogen tegninger over den satellit højtaler? og evt også de sub kasser der skal være i bunden? Vi skal jo snart i gang med at bygge, og jeg bestiller enheder her i løbet af ugen..

Hegner.
Written on: 17.01.2012 20:52
Storgaard
Posts: 4
Hegner wrote:

Hej Saturnus.
Vidste ikke lige hvor jeg ellers skulle skrive til dig henne.
Jeg tænkte på om du havde nogen tegninger over den satellit højtaler? og evt også de sub kasser der skal være i bunden? Vi skal jo snart i gang med at bygge, og jeg bestiller enheder her i løbet af ugen..

Hegner.

Her er et link til 3d tegningerne.
http://sketchup.google.com/3dwarehouse/details?mid=e750bda061e86402cf39ad4726172e1d&ct=mdsa&prevstart=0
Written on: 17.01.2012 22:57
Saturnus
Posts: 3047
Storgaard wrote:

Hegner wrote:

Hej Saturnus.
Vidste ikke lige hvor jeg ellers skulle skrive til dig henne.
Jeg tænkte på om du havde nogen tegninger over den satellit højtaler? og evt også de sub kasser der skal være i bunden? Vi skal jo snart i gang med at bygge, og jeg bestiller enheder her i løbet af ugen..

Hegner.

Her er et link til 3d tegningerne.
http://sketchup.google.com/3dwarehouse/details?mid=e750bda061e86402cf39ad4726172e1d&ct=mdsa&prevstart=0


Det var ikke helt de tegninger han hentydede til for jeg har ikke lavet dem endnu. Må indrømme jeg har glemt det.
Written on: 18.01.2012 22:04
Hegner
Posts: 25
Saturnus wrote:

Storgaard wrote:

Hegner wrote:

Hej Saturnus.
Vidste ikke lige hvor jeg ellers skulle skrive til dig henne.
Jeg tænkte på om du havde nogen tegninger over den satellit højtaler? og evt også de sub kasser der skal være i bunden? Vi skal jo snart i gang med at bygge, og jeg bestiller enheder her i løbet af ugen..

Hegner.

Her er et link til 3d tegningerne.
http://sketchup.google.com/3dwarehouse/details?mid=e750bda061e86402cf39ad4726172e1d&ct=mdsa&prevstart=0


Det var ikke helt de tegninger han hentydede til for jeg har ikke lavet dem endnu. Må indrømme jeg har glemt det.


Hvad fanden det kan jo ske for den bedste :p Hvis du dog stadig har lyst ville det være super lækkert, hvis du kunne lave dem? Også kom jeg til at tænke lidt på delefiltre ? hvad har du af forslag til det icon_smile.gif

[This article was edited 1 times, at last 18.01.2012 at 22:05.]
Written on: 23.01.2012 15:04
Shizz
Posts: 13
Hi ya'all

Last year we successfully build a couple of speakers (2 bfm dr-250's and 2 hd15's), a challenging, fun and rewarding experience. We use an amp9 as amplifier, and a pllxo for filtering. We get our power from two 120ah batteries and two solar panels, we didnt have any battery issues at all, so we are pretty happy with the overall result.

We are not happy with this pllxo arrangement though, we would like to be able to use the speakers with other kinds of amplifiers aswell. The only filter for the subs is the pllxo which I put together with my non-existant soldering/wireing skills. The hd15's each has an eminence kappa 15 unit, so i am thinking about getting 2 low pass filters http://www.eminence.com/speakers/crossover-detail/?model=PXB250
Would this allow us to connect them to any kind of amplifier including our amp9 instead of having to rely on the pllxo for low pass filtering? Is there perhaps more suitable pre manufactured filters somewhere? because 250hz does sound a little high for subs... I really suck at all this icon_frown.gif

We would like to use these speakers at other indoor/outdoor arrangements throughout the year both with and without power, so we would like our setup to be more flexible.

Any help would be appreciated.

Thanks in advance icon_smile.gif


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