Low parts chip amp ?

[AndrewT]

you have lost me.

 

[Mark Whitney]

Guitar players use effect pedals, processors and (distorting) amps to get a certain sound.
A PA takes that sound from loud to very loud.

 

[Kjeldsen]

Guitar players use effect pedals, processors and (distorting) amps to get a certain sound.
A PA takes that sound from loud to very loud.

Exactly what i tried to say. Try rehearse a metallica tune with and unamplified electric guitar

 

[Kjeldsen]

you have lost me.

Sorry - my phone didn't show the quote - just the new text.

The bottom line is that you need a low power amp. You can't rehearse unamplified when you need distortion etc. often you will also record some tunes - and obviously you don't want PA levels/sound coming from you living room

 

[Kjeldsen]

Hello everyone 🙂 I want to build a guitar practice amp , i already have the preamp so i need to build a simple power amp with a chip . I need something that has more output than the lm386 , but which can be build with minimum parts , just like the lm386 (http://www.hobby-hour.com/electronics/lm386-20.gif) . It will be working on 9 volts . Thanks

You can only get some extra power with class D. But if you stick to 9 volt you will not get much more. An amplifier module capable of delivering 25 watt and also working from 8 volt, will NOT give you 25 watt.

 

[mondogenerator]

my two bits

If you were to ask me, id suggest dumping the wallwart psu, and get a cheap laptop psu.

I think you'll get far more out of an amp with 10-15 V rather than 9V

 

[adason]

...great advice mondogenerator
get a decent +/-12 volt supply and build this...low parts count, great sound

 

[5th element]

A laptop PSU wont do +- rails, just a single +, so you'd still really need to go with a bridged configuration. But a TPA3118 board + a laptop PSU will go a very long way to sounding good.

 

[Dinithm]

PAM8403
5V power supply, 3W+3W output,class D,low parts
datasheet-
http://www.alldatasheet.com/datasheet-pdf/pdf/246505/PAM/PAM8403.html
module-
http://www.ebay.com/itm/Mini-Digita...mplifier_Parts_Components&hash=item56650d80e1

2pcs SMD PAM8403 3W 2 Stereo Filterless Class D Audio Amplifier SOP 16 | eBay

KA2209
6v power supply,9v ok,1Woutput power
datasheet:-
http://pdf.datasheetcatalog.com/datasheet/SamsungElectronic/mXvvrtw.pdf