Mukhalled Posted September 2, 2005 Report Share Posted September 2, 2005 Hi everybodyI need to build an equalizer ( with some diodes ) for my amp. Does anybody have a simple circuit ... ;D Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 2, 2005 Report Share Posted September 2, 2005 Hi MukhalledI need to build an equalizer ( with some diodes ) for my amp.Are you joking :)?//Staigen Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 2, 2005 Report Share Posted September 2, 2005 I think he wants us to translate his request."Diodes" are probably LED arrays that indicate signal strength at the same frequencies as the equalizer, you know, a real-time-analyser.An equalizer plus a real-time-analyser certainly won't be simple.If he made them, then the equalizer would probably just overload his amplifier and speakers anyway. :( Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 2, 2005 Report Share Posted September 2, 2005 I assembled a kit a few year ago, for a friend, i belive he ordered it from germany, a realtime analyser, a simple one, it was based on a few IC:s and, if i remember right, 100 Leds, or was it 200. It was suddenly not an easy project, with surface mount components and all! And that was only the analyser.//Staigen Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 3, 2005 Report Share Posted September 3, 2005 You can purchase an equalizer with built-in real-time-analyser fairly cheaply. They are mass produced by robots.If you make one yourself then about the only thing with a discount for quantity are the LEDs. :( Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 3, 2005 Report Share Posted September 3, 2005 No, i'm not gonna build one, it was Mukhalled who was asking for simple circuit...//Staigen Quote Link to comment Share on other sites More sharing options...
Mukhalled Posted September 3, 2005 Author Report Share Posted September 3, 2005 Hi guysthank you for answering me. Sorry I meant LED "Light Emitting Diode" not just Diodes Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 3, 2005 Report Share Posted September 3, 2005 Hi there again Mukhalled :), nice to see youWell, a kit would not be that complicated, i belive. Try it, if you can find one :)!I completed one a few years ago, as i say, and it was not that hard to do.//Staigen Quote Link to comment Share on other sites More sharing options...
Mukhalled Posted September 3, 2005 Author Report Share Posted September 3, 2005 Yes I'll try and I'll do my best :)Thanks Staigen to encourage me, I appreciate it :)Best Regards,Mukhalled Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 3, 2005 Report Share Posted September 3, 2005 Good luck, Mukhalled ;DAnd keep the good thing going ;DKeep on experimenting ;DYou learn a lot by your own mistakes ;DAnd also by the thing that works ;DAnd you have fun at the same time ;DBTW, the amp you and Audioguru buildt, is it something i have missed?//Staigen Quote Link to comment Share on other sites More sharing options...
samkay Posted September 3, 2005 Report Share Posted September 3, 2005 u ve to go back and study the characteristic of what u need then e can easily get the component to use in buildng it as a part dont look at it as a whole i think that will make it simpler Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 3, 2005 Report Share Posted September 3, 2005 Hi Mukhalled,Here is a very good article about how to make an equalizer, called a graphic equalizer. The same kind of audio filters can be used to make a real-time-analyser which is also called a graphic analyser. I don't think the author of this graphic equalizer has made a graphic analyser project yet. http://www.sound.westhost.com/project75.htm Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 3, 2005 Report Share Posted September 3, 2005 BTW, the amp you and Audioguru buildt, is it something i have missed?Yeah, Mukhalled built the "22 Whats per channel amp" in our projects section then had a problem with distortion when he turned up the volume and bass. He learned from me that it really only produces a few watts into 8 ohm speakers and a little more into 4 ohm speakers when using his car battery to power it, and he was trying to make it produce much more. The post is here: http://www.electronics-lab.com/forum/index.php?topic=3784.msg23884#msg23884My new car came with a 228 Whats Pioneer sound system complete with a 10" sub-woofer. The 6x9 speakers on the rear shelf are only 2 ohms each.This system is much more powerful than the 200 Watts system in my old car. I calculated and measured my old system at 14 Watts per channel at clipping into its 4 ohm speakers which adds up to only 56 Watts total for its 4 channels.I can't easily measure the power to my new sub-woofer because its amp is inside the sub-woofer. ;D Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 3, 2005 Report Share Posted September 3, 2005 Whats? Hehe :) :D ;D!//Staigen Quote Link to comment Share on other sites More sharing options...
Mukhalled Posted September 3, 2005 Author Report Share Posted September 3, 2005 Hi Audioguru and StaigenThanks 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 ;Dby the way, congragulations (Audioguru) for your new car with Pioneer sound system ;DBest Wishes,Mukhalled Quote Link to comment Share on other sites More sharing options...
Staigen Posted September 3, 2005 Report Share Posted September 3, 2005 I did :)//Staigen Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 3, 2005 Report Share Posted September 3, 2005 congratulations (Audioguru) for your new car with Pioneer sound system Quote Link to comment Share on other sites More sharing options...
Mukhalled Posted September 29, 2005 Author Report Share Posted September 29, 2005 Hi again my friends :)What can I do if I hear sound of the car-engine in the loudspeakers? ??? ;D Quote Link to comment Share on other sites More sharing options...
Guest Alun Posted September 29, 2005 Report Share Posted September 29, 2005 Turn up the volume and your engine will go faster because it sounds louder. ;DNo seriously, the problem is the spark plugs in the engine are generating electricla noise which your amplifier is boosting and delivering to the speekers, there are several ways to try to combat this problem but as EMC isn't an exact science there's no guarantee that it'll work. Does this nois occur only when you're listening to the radio or does it affect tapes and CDs as well?If it only affects the radio then it's radiated noise so moving the aerial might even help to some degree.If it's affects CDs and tapes to then it's conducted making an RF suppresser by adding inductors, ferrite beads and capacitors to the amplifaier's power supply leads might help.In both cases suppressing the car's ignition system with ferrite beads, inductors and capacitors could help. Quote Link to comment Share on other sites More sharing options...
Mukhalled Posted September 29, 2005 Author Report Share Posted September 29, 2005 Turn up the volume and your engine will go faster because it sounds louder. ;Dhehehe exactly ;DIt effects the Cd-player. Where should i use capacitors ... in the power supply, I'm using 14,4V from the car-lighter.! ??? Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 29, 2005 Report Share Posted September 29, 2005 It might be alternator whine. Connect a 1000uF/35V capacitor with very short leads to where the +14.4V and 0V are connected on the amplifier's circuit board.The stereo cable from the output of the CD player to the amplifier's inputs should be shielded audio cable, not an extension cord for earphones. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.