Volume control

nlinus · 12th February 2001, 12:52 PM

I'm building a simple audio mono amplifier (with good data though) and want to know what's the best way of making a volume control. Shall I use an OP-amp or can I just use a simple pot (what values)?

I want it to be cheap and good. Please help me!

Lisandro_P · 13th February 2001, 03:47 AM

You can use a pot to attenuate the input (most amps have volume controls that work that way). By the way, www.sound.au.com had a nice article on volume controls, and how to wire a linear pot to achieve a better logarithmic response.

promitheus · 14th February 2001, 11:26 PM

A simple pot in the input is enough in most cases.
22k- 100k ohm is normal.
Most prefered 47 k for standard.
You only need to have a preamp with low output impendance.
If the input has a capacitor for coupling concider putting the cap. before the pot.

12th February 2001, 12:52 PM	#1
nlinus diyAudio Member Join Date: Jan 2004 Location: Jämtland	I'm building a simple audio mono amplifier (with good data though) and want to know what's the best way of making a volume control. Shall I use an OP-amp or can I just use a simple pot (what values)? I want it to be cheap and good. Please help me! __________________ ---------------------------------- One of my other projects: Svarthålet Racing

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Volume control on DVD player remote. Lose resolution at low volume?	Circlotron	Digital Source	2	10th June 2011 07:20 PM
i need preamp schematics w/o tone control or volume control	hernanstafe	Parts	7	30th January 2008 03:12 AM
The remote control paratactic volume control	audio-gd	Solid State	33	7th June 2007 11:16 PM
PC volume control	sumacSK	Chip Amps	9	28th November 2005 05:33 AM
remote control motorised control for volume pot/knob	CharlesY	Parts	0	25th July 2005 11:12 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

13th February 2001, 03:47 AM	#2
Lisandro_P diyAudio Member Join Date: Oct 2000 Location: Argentina	You can use a pot to attenuate the input (most amps have volume controls that work that way). By the way, www.sound.au.com had a nice article on volume controls, and how to wire a linear pot to achieve a better logarithmic response.

14th February 2001, 11:26 PM	#3
promitheus diyAudio Member Join Date: Jan 2001 Location: Germany	A simple pot in the input is enough in most cases. 22k- 100k ohm is normal. Most prefered 47 k for standard. You only need to have a preamp with low output impendance. If the input has a capacitor for coupling concider putting the cap. before the pot.