Quick advice on which direction to take this build - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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
Reply
 
Thread Tools Search this Thread
Old 29th December 2009, 06:47 AM   #1
kgb_m3 is offline kgb_m3  United States
diyAudio Member
 
Join Date: Dec 2009
Default Quick advice on which direction to take this build

Hello, I recently sold my Logitech z-2300 and started building a new 2.1 setup for my gaming PC.

So far I have 2 Polk audio monitor 30 that will be ran by a typical LM3886 stereo home made amp. (parts on order) and I would like to add a subwoofer to the setup.

What are my best options, to grab a passive subwoofer/enclosure, build my own sub amp? If so which chip amp would be good for a decent little 8" or 10" sub. Another option was to buy a self powered sub such as a Polk 10".

Any ideas would be great!
  Reply With Quote
Old 29th December 2009, 07:28 PM   #2
diyAudio Member
 
Join Date: May 2008
In general a chip amp is not the best choice to drive a subwoofer. It depends of course on the way you use it and your expectations.

You could add the option: grab a passive subwoofer/enclosure and add a plate amp.
If you want to build a subwoofer amplifier, you need active filters, A mixer to convert the stereo signal into a mono signal, a phase-shifter, protection circuits, a remote start/stop or automatic signal detector. A plate amp usually has all that on board and for an 8" or 10" woofer you can use the smallest version with something like 80 W or so. Usually they cost less than the components you need to build your own amplifier without all those add-ons.
__________________
If you've always done it like that, then it's probably wrong. (Henry Ford)
  Reply With Quote
Old 29th December 2009, 07:45 PM   #3
kgb_m3 is offline kgb_m3  United States
diyAudio Member
 
Join Date: Dec 2009
Thanks for the advice, I actually just remembered that I have a spare Onkyo skw-200 powered sub that I can use meanwhile. Unless the plate amp and "fill in the blank" sub will be a better option. If so, would anyone recommend a decent 8 or 10" sub and plate amp? I would imagine Dayton sub will be suffice with a decent plate amp.
  Reply With Quote
Old 30th December 2009, 04:31 PM   #4
diyAudio Member
 
lanchile's Avatar
 
Join Date: Sep 2008
Location: AREA 51
Quote:
Originally Posted by kgb_m3 View Post
Thanks for the advice, I actually just remembered that I have a spare Onkyo skw-200 powered sub that I can use meanwhile. Unless the plate amp and "fill in the blank" sub will be a better option. If so, would anyone recommend a decent 8 or 10" sub and plate amp? I would imagine Dayton sub will be suffice with a decent plate amp.
Check parts express!. They have good ones.
  Reply With Quote
Old 30th December 2009, 04:45 PM   #5
mikje is offline mikje  United States
Soakin' up the Sound!
diyAudio Member
 
mikje's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
About half way down this page is a plate amp. I haven't used one, but I've heard good things about it.
(BTW... no affiliation on my part. Is this a required statement?)

NHT drivers and electronics surplus sale

Mike
__________________
Marantz PM8003 amp, Jolida SJ502A, Squeezebox Touch, MLTL Continuums, DIY Carmichaels (Dayton, TangBand, Vifa); MarkAudio A 7.3 Frugalhorns, MarkAudio CHP-70s
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Grounds concept/direction/advice angchuck Chip Amps 5 5th March 2008 05:32 PM
I need a quick piece of advice... ptwining Class D 3 14th July 2006 01:22 AM
need to build a transformer.... point me in right direction? AudioGeek Power Supplies 3 5th February 2005 02:37 AM
Want to build mono blocks, quick question. Zemo Chip Amps 11 21st April 2004 08:48 AM


New To Site? Need Help?

All times are GMT. The time now is 12:55 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2