Mukhalled

Hi again, It was hard to draw schematic circuit so i took the one that Audioguru did before and made some changes on it ;D. When I measured the impedance like it shows in the attachment, I disconnected the amplifier and it was not 4 ohms but i added some resistors in parallel, then it became 4 ohms 8). This was the right side. I measured the left side and did the same thing to get 4 ohms. *(There is a filter connected to the bass speaker to get low frecuencies)

Hi Staigen & Audioguru, I will draw how I exactly connected the five speakers and I'll show you how I measured thier impedance ;D, but I might be wrong :'(.

I meant speakers no. 4,2 and ( "1" is connected to both sides) have 4 ohms totaly. and the same thing for 5,3 and 1 = 4 ohms , I have measured it. The tweeters have caps in series and the woofer also has an inductor connected in series

The impedance of each side is totaly 4 Ohms. Yes they have crossovers built in. ;D

Hi Staigen, This is the amp I've built : http://www.electronics-lab.com/projects/audio/006/index.html

Hi, I have a different question today ;D. This is my speaker system in my car (the attachment), Did I connect the woofer in right way (speaker no. 1)? 1 = woofer 2 & 3 = 3-way speakers 4 & 5 = tweeters

I can buy a new CD-player to my car but I think it's cool to build my own things ;D

No, it's connencted together with the amplifier and they get the voltage from the (electric lighter, cigarette lighter) which is not always powered. I don't want to connect the audio system directly to the car battery because i might foreget to switch off it, then the battery may be "finito" ;D. so is there any hope ??? ;D

Hi Audioguru, they are in the same connection ;). It uses 1A at 5V and 1.5A at 12V.

hi guys sorry to late. What i'm using is a CD-drive "reader" which we use in our PCs which needs +12v and +5v, and it has an audio output ... sorry about my eng it's a little bit hard to explain ...

Thanks Alun and Audioguru , it's really a good idea. i'll do it ;D

Hi Audioguru Thanx for your message. It's logical actually ;D , but in my project as you know ( audio amp + cd player ) there is no memory card or a chip which i can load a program in ??? , am i right?

Hi guys I've built an audio amp. to use in my car. The audio source is a (pc cd-rom) CD-player. They work pretty well together. I need a memory or something like that to keep what i'm listening to, for example:i'm listening to a song and the car is not started, when i get the car started, the current will be off for a second so i have to start the same song from the begining

hehehe exactly ;D It effects the Cd-player. Where should i use capacitors ... in the power supply, I'm using 14,4V from the car-lighter.! ???

Hi again my friends :) What can I do if I hear sound of the car-engine in the loudspeakers? ??? ;D

Hi Audioguru and Staigen Thanks for the article, I'll study it first, but I don't think that I will build it acually because my project (which I will do in school) is about audio amplification and the equalizer thing was just an additional idea. :) I wonder if Staigen has read our post about the amp ;D, thanx for wishing me good luck ;D by the way, congragulations (Audioguru) for your new car with Pioneer sound system ;D Best Wishes, Mukhalled

Yes I'll try and I'll do my best :) Thanks Staigen to encourage me, I appreciate it :) Best Regards, Mukhalled

Hi guys thank you for answering me. Sorry I meant LED "Light Emitting Diode" not just Diodes

Hi everybody I need to build an equalizer ( with some diodes ) for my amp. Does anybody have a simple circuit ... ;D

I have no more questions ;D , thanks a lot. Regards

Hi again Audioguru, Our fantastic expert

Hi Audioguru :) Actually I've already connected the speakers with same phase and I hear a very good bass ;D, I mean if we say, the volume has 10 levels I can hear a great sound (bass & treble are max) from 1 to 8 but the last two levels (when i increase the volume) distortion begins :( . Do you think if I put a small fan on the heatsink it will dicrease the distortion.?! May the heat cause this problem? Thank you for taking time to answer me ;)

hi first i want to thank you ;D The audio source is a (computer CD-player) it sounds strange, isn't it ;D I don't know actually how many mV it gives ??? So I 've to check it out, if more than 300mV then I've to reduce it , right? Thanks again

hi heathtech I think you are right, thank you for taking time to answer me

Hi You have a parallel connection which means all the resisters will have the same voltage so it doesn't matter if you have 20ohm resister or 20kohm resister ;) good luck