Mukhalled
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Posts posted by Mukhalled
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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
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Hi Staigen,
This is the amp I've built :
http://www.electronics-lab.com/projects/audio/006/index.html -
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I can buy a new CD-player to my car but I think it's cool to build my own things ;D
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Is it connected to something that is powered all the time including during starting the engine?
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
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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 -
Turn up the volume and your engine will go faster because it sounds louder. ;D
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.! ???
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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
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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
Bass/Treble System
in Electronic Projects Design/Ideas
Posted
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)