The perfect amplifier/speakers to go with your small screen.

If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.

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hailrazer
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The perfect amplifier/speakers to go with your small screen.

Post by hailrazer » Thu Dec 10, 2009 2:04 pm

I finally found an all in one setup that is pretty much perfect for using with a screen that has no audio amp or speakers.

It's called the Iluv iSP100 :
Image

Here's a review :
http://www.testfreaks.com/blog/review/i ... er-isp100/" onclick="window.open(this.href);return false;

It is very small.
It has volume up/down and power tact switches.
It runs off 5v.
It has built in speakers which sound better than 99% of the speakers I have heard.
It draws around 20mA at low volume and an average of around 45-50mA at near max volume.

Here's a pic of it next to a 9v battery for size comparison :

Image

To open it you need to remove the grill from the top by hooking it with a small screwdriver or something similar and just pull it straight off. Then there are four screws to remove and the case pops open.

This is what it looks like when apart :
Image

Image

The speakers are not recessed ,so when installing them in a portable you will need to make a small ring for them to sit on so the speaker doesn't hit the case. But other than that installation of this is a breeze.

Well hopefully this helps someone :)
Last edited by hailrazer on Thu Dec 10, 2009 4:22 pm, edited 1 time in total.
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Re: The perfect amplifier/speakers to go with your small screen.

Post by eagle5953 » Thu Dec 10, 2009 2:21 pm

nice find!

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thewise1
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Re: The perfect amplifier/speakers to go with your small screen.

Post by thewise1 » Thu Dec 10, 2009 4:03 pm

So how loud is it and how does it compare with the psone screen speakers?
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hailrazer
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Re: The perfect amplifier/speakers to go with your small screen.

Post by hailrazer » Thu Dec 10, 2009 4:19 pm

It's a lot louder and it sounds a lot better, no bass distortion :)
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kibble
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Re: The perfect amplifier/speakers to go with your small screen.

Post by kibble » Thu Dec 10, 2009 7:03 pm

This looks nice! Questions though, what is that translucent plastic looking thing on the top of the board? Is it needed? And, about how thick is the board overall?
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Re: The perfect amplifier/speakers to go with your small screen.

Post by thewise1 » Thu Dec 10, 2009 7:44 pm

It looks like it's just a defuser for the led
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hailrazer
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Re: The perfect amplifier/speakers to go with your small screen.

Post by hailrazer » Thu Dec 10, 2009 10:09 pm

Yes the plastic is a led diffuser and can be removed, The board is 1 1/4" x 2 3/4" x 3/8"
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Re: The perfect amplifier/speakers to go with your small screen.

Post by Rekarp » Fri Dec 11, 2009 12:20 am

Little big and expensive imo.
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hailrazer
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Re: The perfect amplifier/speakers to go with your small screen.

Post by hailrazer » Fri Dec 11, 2009 1:30 am

Rekarp wrote:Little big and expensive imo.
Feel free to show me a better and cheaper all in one speaker/amp/volume combo :)
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Re: The perfect amplifier/speakers to go with your small screen.

Post by Rekarp » Fri Dec 11, 2009 1:42 am

hailrazer wrote:
Rekarp wrote:Little big and expensive imo.
Feel free to show me a better and cheaper all in one speaker/amp/volume combo :)
I can build a LM386 amp with a speaker/control for under $8. Be no bigger then the LM386 really looking at less than 1sq inch.


Stereo..I will have to find that schematic.

Edit//

found it.

TPA6021A4
http://focus.ti.com/lit/ds/symlink/tpa6021a4.pdf" onclick="window.open(this.href);return false;

Chips is $2.30 for all the parts you are still looking under $14. Probably less for a really high quality stereo amp. Has built in headphone detection and everything.
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Re: The perfect amplifier/speakers to go with your small screen.

Post by mako321 » Fri Dec 11, 2009 7:09 am

you can get a digital 10k ohm resistor with push button controls?

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Re: The perfect amplifier/speakers to go with your small screen.

Post by Rekarp » Fri Dec 11, 2009 8:03 am

mako321 wrote:you can get a digital 10k ohm resistor with push button controls?
You can make one for the TPA6021A4 as it just uses a Variable voltage on a single pin to control volume (use a DAC or potentiometer). I have been one to like the use of potentiometers for volume control tho.
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hailrazer
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Re: The perfect amplifier/speakers to go with your small screen.

Post by hailrazer » Fri Dec 11, 2009 8:28 am

Rekarp wrote:
hailrazer wrote:
Rekarp wrote:Little big and expensive imo.
Feel free to show me a better and cheaper all in one speaker/amp/volume combo :)
I can build a LM386 amp with a speaker/control for under $8. Be no bigger then the LM386 really looking at less than 1sq inch.


Stereo..I will have to find that schematic.

Edit//

found it.

TPA6021A4
http://focus.ti.com/lit/ds/symlink/tpa6021a4.pdf" onclick="window.open(this.href);return false;

Chips is $2.30 for all the parts you are still looking under $14. Probably less for a really high quality stereo amp. Has built in headphone detection and everything.
Speakers ? Shipping ?

Yea See I bought this for $22. No buying parts. No building a circuit. No soldering. Works perfect.
And from what I've read about the stereo LM386 amp , this one will have much better sound :)

I'm all for DIY but really, come on. :)
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Re: The perfect amplifier/speakers to go with your small screen.

Post by Rekarp » Fri Dec 11, 2009 8:43 am

Your buying tacts, power regulators, and other random crap so shipping is not an issue. (those prices I listed where with speakers,good ones to)

TPA6021A4 will probably be better audio quality then that anyways :mrgreen:.

My price includes a switching headphone jack which is lacking on your audio amp.

I'm just saying its 1 square inch to big and $10 more then what can be built.
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hailrazer
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Re: The perfect amplifier/speakers to go with your small screen.

Post by hailrazer » Fri Dec 11, 2009 8:44 am

Digging in your heals on this one huh?

Oh well. :P
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