♪Musicl☺♥☻r
New Member
I don't like loudness but i like to have lower volume punch.Your tiny speakers will not be as loud as bigger speakers with the same power from the amplifier.
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I don't like loudness but i like to have lower volume punch.Your tiny speakers will not be as loud as bigger speakers with the same power from the amplifier.
I don't like loudness but i like to have lower volume punch.
Believe me NG, the 3" driver has magnets near to 1/2kg. The key for punch is designing the suitable enclosure with bass reflection. These kind of drivers can perform excellent at lower volumes..smoooth bass i would mean.I would suggest something less puny then - a 3 inch driver isn't going to have much bass.
Believe me NG, the 3" driver has magnets near to 1/2kg. The key for punch is designing the suitable enclosure with bass reflection. These kind of drivers can perform excellent at lower volumes..smoooth bass i would mean.
OK. So I believe the single supply operation is working at 32V. Correct?. Thanks for correcting the pin conf. Now my question is shall I remove the 15V zener and 1K. Otherwise u hav to tell the purpose of that stuff over therhi Musicl
I check my diagram again that was all currect. Your modified diagram is wrong. Transformer centertap is not used because of single supply opperation.pls see carefully data seet thouse have both dual or single supply oparation. this amp is used only positive and Ground supply no negetive supply . i have a misteck on tlo72 op mp pinconfigaration i show u pin5 was inverting input for output2 it will be noninverting input.and pin6 will be inverting input. TL072 have built in 2 op amp so u can build with one ic for stereo vertion.i have another misteck for olternative IC name that was NE5502 it will be NE5532. using 4001 diode for ic2030 from output to both power rail for ic power trangient protection purpose only. you may use it or not.
thanks!
I don need much watts or loudness n the 20Watts of power will overdrive my little speakers. They r rated for 10Watts. What I am expecting is punchy bass at lower volume through little speakers. I will go for a maximum of 6" driver. I hate 8" common bulky drivers.Have you looked at this:**broken link removed** 20W stereo amplifier (with schematics in data sheet) It has a really good sound from it
15 volt zener and 1k resister is for reduce and stabilized the voltage for op amp. TL072 tolerate maximum 36V so u can omit them. but in real designer rule it will help the circuit operation stability. when you turn your volume high total dc supply voltage become unstable and op amp will produce noise if you omit the zener and 1k resister. you do at least insert 1.5k resister in place of 1k resister and omit only zener diode.I don't know why u hate zener. in this design 15 volt zener produce no any junction break down noise in the amp power line, u can use 18v , 20v , 24v zener also. or use 7815 or 7818 voltage regulator for op amp. i was use 15 volt zener.
I don't think anyone 'hates zeners', but your circuit is full of errors - such as no decent supply decoupling.
It would be better, and easier, to use a split supply rather than a single supply.
I left out the diodes at the output and maybe I also left out other things.
audioguru plz post a split supply version with supply decoupling for atauls circuit![]()
First I would thank audioguru for his wonderful conversion.audio guru pls correct the power supply there is some error. wire it 2pcs 4700mfd caps polarity will be (+/-)+(+-) and 2 caps center tap goes to X'formers center taps and this will be ground. direct coupling amp sounds like tight bass especially this TDA2030 amp.but if we prefer other amp, split supply is the best.