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Topic with many replies

Create your own festival stereo


Author Message
Written on: 02.05.2012 21:44
Anders
Posts: 4
Okay. so i want to build a long lasting portable sound system. I have been lurking around this thread for some time now and i think i have got the idea.
These are the components i want to use:
2X http://www.hoejttalerbutikken.dk/product.asp?product=41
2X http://www.hoejttalerbutikken.dk/product.asp?product=824
1X http://www.thansen.dk/product.asp?c=6901003718&n=-1156714473&pn=-1156714424
1X http://shop.41hz.com/shop/item.asp?itemid=43&catid=
1X solar panel(still looking around for a good one)

The only problem is that i have absolutely no idea how electronics work. I have tried(and failed) to understand what to do. Could somebody please help me make a circuit drawing?

Please tell me if i got the components wrong. And please tell me if you know where i an get a cheap small solar panel that could keep this running.
Written on: 02.05.2012 22:41
Kasper Lund
Posts: 9
Anders wrote:

Okay. so i want to build a long lasting portable sound system. I have been lurking around this thread for some time now and i think i have got the idea.
These are the components i want to use:
2X http://www.hoejttalerbutikken.dk/product.asp?product=41
2X http://www.hoejttalerbutikken.dk/product.asp?product=824
1X http://www.thansen.dk/product.asp?c=6901003718&n=-1156714473&pn=-1156714424
1X http://shop.41hz.com/shop/item.asp?itemid=43&catid=
1X solar panel(still looking around for a good one)

The only problem is that i have absolutely no idea how electronics work. I have tried(and failed) to understand what to do. Could somebody please help me make a circuit drawing?

Please tell me if i got the components wrong. And please tell me if you know where i an get a cheap small solar panel that could keep this running.


Get some hp10w's instead and build a boominator or a half boominator if the budget is tight.. you can find the wiring for such a box in this thread: http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine-274.html#post3008613

regarding how to connect the things:

If you got no skills in electronics what so ever, you might be better of getting the assemebled version of the amp6b. The kit you linked needs to be soldered and if you havent tried this before the final testing of your board might be challenging (yet very rewarding when it works)

+- goes to the +- on the battery, then you got a l,l+,r-,r+ and thats pretty straight forward.. connect these to your terminals on your speakers on either side.. The only tricky part is you might need to make a crossover filter for your speaker setup in order to "mix" the frequencies of your horn and the driver you linked above.. (if you build the boominator this is not needed). Then there is the jackstick on the amp and hmm - you know how to connect that icon_razz.gif

If i were you i would just go for the boominator! It is a tested setup, you don't need to calculate your box volume, port dimensions etc, and last but not least! - the connection of your speaker setup to the amp6b is very straight forward.

The solar panels can be found in may shapes from ebay! just get some with around 17-18v open loop voltage rated at 10-20W.

Written on: 03.05.2012 01:21
Anders
Posts: 4
Get some hp10w's instead and build a boominator or a half boominator if the budget is tight.. you can find the wiring for such a box in this thread: http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine-274.html#post3008613

regarding how to connect the things:

If you got no skills in electronics what so ever, you might be better of getting the assemebled version of the amp6b. The kit you linked needs to be soldered and if you havent tried this before the final testing of your board might be challenging (yet very rewarding when it works)

+- goes to the +- on the battery, then you got a l,l+,r-,r+ and thats pretty straight forward.. connect these to your terminals on your speakers on either side.. The only tricky part is you might need to make a crossover filter for your speaker setup in order to "mix" the frequencies of your horn and the driver you linked above.. (if you build the boominator this is not needed). Then there is the jackstick on the amp and hmm - you know how to connect that icon_razz.gif

If i were you i would just go for the boominator! It is a tested setup, you don't need to calculate your box volume, port dimensions etc, and last but not least! - the connection of your speaker setup to the amp6b is very straight forward.

The solar panels can be found in may shapes from ebay! just get some with around 17-18v open loop voltage rated at 10-20W.




I actually chose these parts because they where a lot cheaper than those in the boominator. But i sounds like i will be a lot easier for me if i just follow that design. Do you know what page the instructions are on? i dont really feel like going through 272 pages.



[This article was edited 1 times, at last 03.05.2012 at 01:22.]
Written on: 03.05.2012 10:07
Ruslabox
Posts: 168
Anders wrote:

Okay. so i want to build a long lasting portable sound system. I have been lurking around this thread for some time now and i think i have got the idea.
These are the components i want to use:
2X http://www.hoejttalerbutikken.dk/product.asp?product=41
2X http://www.hoejttalerbutikken.dk/product.asp?product=824
1X http://www.thansen.dk/product.asp?c=6901003718&n=-1156714473&pn=-1156714424
1X http://shop.41hz.com/shop/item.asp?itemid=43&catid=
1X solar panel(still looking around for a good one)

The only problem is that i have absolutely no idea how electronics work. I have tried(and failed) to understand what to do. Could somebody please help me make a circuit drawing?

Please tell me if i got the components wrong. And please tell me if you know where i an get a cheap small solar panel that could keep this running.


17Ah will last about one day at medium volume with that setup. I suggest looking for some heavier batteries, if you take some time to research you can easily find cheaper and longer-lasting solutions. Try DBA for instance.
Written on: 03.05.2012 10:21
Saturnus
Posts: 3048
Ruslabox wrote:

Anders wrote:

Okay. so i want to build a long lasting portable sound system. I have been lurking around this thread for some time now and i think i have got the idea.
These are the components i want to use:
2X http://www.hoejttalerbutikken.dk/product.asp?product=41
2X http://www.hoejttalerbutikken.dk/product.asp?product=824
1X http://www.thansen.dk/product.asp?c=6901003718&n=-1156714473&pn=-1156714424
1X http://shop.41hz.com/shop/item.asp?itemid=43&catid=
1X solar panel(still looking around for a good one)

The only problem is that i have absolutely no idea how electronics work. I have tried(and failed) to understand what to do. Could somebody please help me make a circuit drawing?

Please tell me if i got the components wrong. And please tell me if you know where i an get a cheap small solar panel that could keep this running.


17Ah will last about one day at medium volume with that setup. I suggest looking for some heavier batteries, if you take some time to research you can easily find cheaper and longer-lasting solutions. Try DBA for instance.


What are you talking about?

An amp6 uses about 2300mW into a pair of 8 ohms speakers at FULL volume. That is not an estimate, it is a measured fact!

So a 17Ah battery, assuming we only drain to about 80% so that we don't damage the battery will last about 90 hours at full volume.

[This article was edited 1 times, at last 03.05.2012 at 10:22.]
Written on: 03.05.2012 11:22
Anders
Posts: 4
Saturnus, from what i can understand you are the one who invented the "boominator". Would the components i choose be good, or would it be better if i just stopped being so greedy and bought the parts you use?

Allso, do you have some kind of drawing on how how to connect the things.

Allso would this be a good solar panel: http://stratosol.dk/product/monokrystalinsk-solpanel-12-volt-50-wp-137/
With this regulator: http://stratosol.dk/product/phocus-laderegulator-cm-04-31/
Written on: 03.05.2012 16:27
Kasper Lund
Posts: 9
Anders wrote:

Saturnus, from what i can understand you are the one who invented the "boominator". Would the components i choose be good, or would it be better if i just stopped being so greedy and bought the parts you use?

Allso, do you have some kind of drawing on how how to connect the things.

Allso would this be a good solar panel: http://stratosol.dk/product/monokrystalinsk-solpanel-12-volt-50-wp-137/
With this regulator: http://stratosol.dk/product/phocus-laderegulator-cm-04-31/


at least it is very expensive icon_smile.gif - i thought you were greedy icon_biggrin.gif

you can find alot cheaper solutions on ebay http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p5197.m570.l1313&_nkw=solar+panel+12v&_sacat=See-All-Categories

you don't need a regulator if your solar panel is not rated for alot of power.. The reason for this is that the solar panel will more or less act like a current source when loaded. If you connect a battery in parrallel with the solar panel the battery will thus reduce the voltage of the solar panel to the operating voltage of the battery.
Written on: 03.05.2012 16:34
Saturnus
Posts: 3048
You can use whatever you like. The only thing I say is that if follow my design the recommended drivers are the cheapest and only drivers that will give any GOOD result.

As soon as you change any part of the design in any way, you have opted to stray away from perfection, whether you can accept the outcome is up to you but when you're going to spend money, why not spend a little more, and get the optimum result.
Written on: 11.05.2012 02:29
Ingenarme
Posts: 3
Hello audiophiles *cough*Saturnus*cough*, I've decided on building a boominator-esque speaker for this years Roskilde. I've read about the first 30 pages of this thread and the boominator post on diyAudio, but i stil have a few things i would like to clear up.

1) I'm planning on using 2 HP-10W's, since my budget doesn't allow 4, so, should i use the original boominator size of 30x30x90, or is there a more optimal size for 2 HP-10w's ?

2) Piezo's, I'm planning on just 2, but which ones should I go for ? I've narrowed it down to a choise between these two:

https://www.elextra.dk/main.aspx?page=article&artno=H19399‌
- 34DKK -

and

http://www.dlt.dk/products/productinfo.aspx?ProductID=5107&MenuItemID=230
- 69DKK -

I've really come to enjoy this forum, and have all respect for Saturnus et al and their seemingly unlimited patience, thank you all for being so great !

Simon

EDIT: URL tags doesn't seem to work, does anyone know how to fix them ?

[This article was edited 2 times, at last 11.05.2012 at 02:32.]
Written on: 11.05.2012 09:15
Ruben
Posts: 69
If you're only using 2 HP-10W you should use 2 piezos. The first ones you link to have been tried by Phaedras from this forum, and he said they sounded alright. Basically they are also just a replica of the recommended piezo KSN-1005A from Motorola.

You're goind with half the speakers - use half the boominator's size, i.e. building a half boominator. I've have done that once with okay results but you should could get better.

If you look at the boominator you should make only one side with the speakers back to back, but you should make a middle bracing with no holes to seperate the two enclosures - then put a bass reflex port for each enclosure. Here's how I did it, although you have to do the middle bracing without holes.
http://sketchup.google.com/3dwarehouse/details?mid=1803f5f8e694ae0d75fa5879e0c49e00

Each HP-10W should go to its own channel.

[This article was edited 1 times, at last 11.05.2012 at 09:16.]
Written on: 11.05.2012 11:14
Ingenarme
Posts: 3
That looks nice! I suppose it's 30*30*45 ? and an internal volume of ???

Theoretically, how much volume and sound quality would i miss out on by making it 30*15*90 and having the speakers on one side ?

I'll probably be going with your design though, it looks very good and sturdy!

Simon
Written on: 11.05.2012 12:02
Saturnus
Posts: 3048
It's actually 300x300x500mm. Remember that you can't split the electronics compartment in the middle. And technically you have to correct for the missing holes in the center brace so you have to make the speaker part 5mm longer.

Though a half-boominator with the speakers on both sides looks quite odd, and isn't optimal. It's a far cry better than having it cut down the middle with the speakers on one side.
Written on: 11.05.2012 20:52
Ingenarme
Posts: 3
oh yes of course, that makes sense. What is the internal dimensions supposed to be in each driver compartment? I ask because I don't know whether I'll be using 12, 15, or 18 mm plywood yet.

also, what should the dimensions on the bass reflex port be ? I noticed that in the SketchUp model they share a single circular port, is that still considered the best way to go about it ?

Thank you both for the patience, I sincerely appreciate it !

Simon


[This article was edited 1 times, at last 11.05.2012 at 20:54.]
Written on: 12.05.2012 11:39
Saturnus
Posts: 3048
I haven't made a sketch-up of the half-boominator, so I'm not sure what you're referring to.

The port on the original is 34cm2 = 66mmØ if you make it round. You need 2 ports instead so that's 47mmØ. Still same length of 36mm.
Written on: 12.05.2012 16:09
Ruben
Posts: 69
Saturnus wrote:

I haven't made a sketch-up of the half-boominator, so I'm not sure what you're referring to.

The port on the original is 34cm2 = 66mmØ if you make it round. You need 2 ports instead so that's 47mmØ. Still same length of 36mm.


You won't risk the port to be whistling with a diameter of 47 mm using a 10" woofer? It just seems kind of small, but then again the number of speakers in each enclosure is cut in half.
Written on: 14.05.2012 16:12
Camp Balloon
Posts: 24
Hi again,

I have another question I would like some input on. Since we are going with two boxes, then we need to make a decision on how to wire the boxes.

The equipment:
Box 1: Contains Amp6b, two HP10W and two PHT-407N (And crossover(s))
Box 2: Contains two HP12W.

We want to able to carry around the primary box(box 1) with the amp and then connect it with box 2, when more output is needed.

And after doing some research I was thinking of these two possible solutions.

1. Wire the two HP10W's in parallel and the two PHT-407N in series on a passive crossover on left or right channel on the amp. Then box 2 will be connected on the other channel when needed.

2. Wire one HP10W and one PHT-407N(with crossovers) on each channel and when needed connected one HP12W in parallel with a HP10W's on each channel. So the load on the amp should be 4ohm from the two drivers and the 8ohms from the tweeter on each channel(With a passive crossover).

Option 1: Will leave us without stereo and even when connected to box 2, then there's no sound above 3Khz, so this will probably sound really bad and going mono is not a good option either.

Option 2: I've tried to find some conclusive material on this, but if I understand it correctly, it's possible, but we could wind up having muddy sound, even though the HP10W and HP12W are almost identical(Besides the cone area)

What are your recommendations on this? And is there an even better third option?
Written on: 31.05.2012 13:51
Thorkil Godvin Hansen
Posts: 1
Nu når vi snakker om højtalere, kunne jeg godt bruge noget hjælp. Er der nogen der ved hvordan man kan få denne: http://www.behringer.com/EN/Products/BX300.aspx til at køre på bilbateri og hvordan, hvis muligt kan man slutte den sammen med denne: http://www.coolstuff.dk/ION_Block_Rocker_iPA03

-På forhånd tak icon_wink.gif
Written on: 31.05.2012 17:53
MardySJ
Posts: 48
Hi,

for the 4th year in a row, we're out too late, but we've still decided to build the half-boominator (hopefully, the full boominator next year).
So, we've got the design (http://sketchup.google.com/3dwarehouse/details?mid=1803f5f8e694ae0d75fa5879e0c49e00) and we've got the amp6-basic, kindly assembled by a guy called Vincent from the Netherlands.
I've just spent almost two hours searching for the damn P.Audio hp10w speaker but it seems to be sold out everywhere except Australia (like, whatever lol). Does anyone have any suggestions for alternatives? Or maybe someone wants to sell their speakers?

[This article was edited 1 times, at last 31.05.2012 at 17:56.]
Written on: 04.06.2012 22:06
Andreas Knudsen
Posts: 1
Hello future inhabitants of Roskilde 2012! icon_wink.gif

Some friends and I have planned to build our own soundsystem this year, and since we're rookies in this matter, I hope you might be able to give some good advice!

We have bought the following parts after some reasearch on different forums and a visit in the store Carsound.dk:

4x http://www.carsound.dk/produkt.asp?id=8827&pk=1&produkt=Renegade_RX830_-_8%22_H%F8jttaler

2x http://www.amazon.com/Lepai-TRIPATH-TA2020-Stereo-Amplifier/dp/B003P534SW

We heard that the stereo amplifier was recommended by alot of people who have visited festivals and therefor build their own soundsystems. They recommended this due to its low power use, but will it work together with the speakers we've bought?

As I said, we're quite rookies, but any advice or comments will be appreciated!

- We got 2 normal car batteries as power supplies, they should work out great, I have yet to find out what type they are tho!

Thanks in advance!
Written on: 05.06.2012 15:01
Mads Frederik Hegelund Kleis
Posts: 5
Hej alle sammen.
Er der nogen der vil sælge et anlæg til dette års roskilde festival?

Det er mit 10ende år, og tror ikke jeg når at bygge noget denne gang.
Jeg har batterier til den helt store fest, så bare en kasse med nogle højtalere og forstærker.

Det skal kunne spille højt og klart.

Lad mig høre hvad i har.

mvh
Written on: 07.06.2012 13:19
Hegner
Posts: 25
Hello boys and girls.

If anyone need some BIG truck batterys, then take a look here:

http://www.dba.dk/8-x-volvo-225-ah-12v/id-83550711/

Good, cheap, big and alot of power!

[This article was edited 1 times, at last 07.06.2012 at 13:20.]
Written on: 07.06.2012 14:36
Jim Daggerthuggert
Posts: 637
Hegner wrote:

Hello boys and girls.

If anyone need some BIG truck batterys, then take a look here:

http://www.dba.dk/8-x-volvo-225-ah-12v/id-83550711/

Good, cheap, big and alot of power!


They are not "deep cycle" batteries.
Written on: 07.06.2012 14:47
Saturnus
Posts: 3048
Jim Daggerthuggert wrote:

Hegner wrote:

Hello boys and girls.

If anyone need some BIG truck batterys, then take a look here:

http://www.dba.dk/8-x-volvo-225-ah-12v/id-83550711/

Good, cheap, big and alot of power!


They are not "deep cycle" batteries.


He didn't write they were.

He does however say you can use them on Skanderborg which isn't so. Most other larger Danish festivals including smukfest does not allow lead based batteries in the camping area.
Written on: 08.06.2012 18:50
Per Andersen
Posts: 15
Do anybody know if you kan get some sort of amp, that can amplifi the sound from you Mp3 player, before the sound enters you main amplifier, for a resonable price, or if is not for sale on the poblic market, kan you make something yourself?

hope to get my question answered. icon_confused.gif
Written on: 11.06.2012 15:12
Hegner
Posts: 25
Jim Daggerthuggert wrote:

Hegner wrote:

Hello boys and girls.

If anyone need some BIG truck batterys, then take a look here:

http://www.dba.dk/8-x-volvo-225-ah-12v/id-83550711/

Good, cheap, big and alot of power!


They are not "deep cycle" batteries.


If you dont know what you are talking about, then please dont talk.



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