Newbie to Auido - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 28th November 2001, 07:49 AM   #1
diyAudio Member
 
Join Date: Nov 2001
I have a 6 channel computer sound card and i am wanting to build an amp for it to goto my 5 speaker and 1 sub. dose anyone know where i can find a pcb design of an amp that runs on 12v and has 6 channel input and output? i am very new to audio stuff so i don't know if what i am wanting to do is possable. if there is no 6 channel amp out there could i rig 6 seperate mono amp together? any help would be great


Many thanks
  Reply With Quote
Old 28th November 2001, 10:19 AM   #2
diyAudio Member
 
Join Date: Jun 2001
Location: Flanders, Belgium
Dear Micah,

*)I don't know any 6 channel amplifier on just one pcb, so I think you have to build 6 mono amplifiers (or 3 stereo versions)

*)I don't know what kind of speakers you want to drive
( ?? ohm; ?? Watt)

*)If you want to use a power supply of 12V, the power of the amplifier will be (very) low. If you have 2 supplies of 12V then you can realise a supply with +12V, 0V (GND), -12V wich allowes more output-power

*)I will look after a schematic, but can you tell us some more details of your expections and your speakers.


best regards,

HB.
  Reply With Quote
Old 28th November 2001, 07:04 PM   #3
diyAudio Member
 
Join Date: Nov 2001
ok the speakers i want to driver are 5*180 watt speakers and a 1000w sub running all @ 8 ohms. for my power supply i am going to use Computer PSU's, they give out +5v,12v i can rig these up so i can get +10v/24 or +15v/36v

hope this info helps
  Reply With Quote
Old 28th November 2001, 07:34 PM   #4
paulb is offline paulb  Canada
diyAudio Member
 
Join Date: Jun 2001
Location: Calgary
There was a previous discussion about trying to use computer power supplies for an audio amp:
Cheapo amp project help pls

He gave up, it's not practical because computers use low voltage / very high current, while audio has to involve the 8 ohm impedance of the speaker - for high power, you need high voltage.

I'm building an amp right now of about 75 watts per channel, it uses an 84-volt DC power supply (+/- 42V).

A switching inverter could be used to transform DC voltages, but this would probably be more complex than the rest of your amplifier.

The power levels you're talking about would be a complicated and expensive project. Far cheaper to buy something. Except for unusual cases, DIY stuff is not cheaper (it just sounds better).
  Reply With Quote
Old 28th November 2001, 08:14 PM   #5
diyAudio Member
 
Join Date: Nov 2001
Location: Harlowton, MT, USA
You can't get enough power from a PC power supply to run all your speakers at full volume, and PC power supplies don't have a high dual voltage that you would need for your amp(s). You would need a different supply for the amps. Other than that, it would be fine. Just have an amp for each speaker. http://epanorama.net has many schematics for mono amps. Go to "Audio" then "Circuits to Build."
  Reply With Quote
Old 28th November 2001, 09:44 PM   #6
diyAudio Member
 
Join Date: Nov 2001
ok, i will need to build 5 mono amps and 1 bass amp and a PSU andone got some pcb designs for it?? i have now chosen 80watt speakers and 1 500watt sub
  Reply With Quote
Old 30th November 2001, 05:18 AM   #7
diyAudio Member
 
Join Date: Nov 2001
http://sound.westhost.com/project3a.htm

is that a good amp design and if it is could some one list all the comnpontents i wouold nee for it?
  Reply With Quote
Old 30th November 2001, 06:22 AM   #8
paulb is offline paulb  Canada
diyAudio Member
 
Join Date: Jun 2001
Location: Calgary
That's a good choice. If you order the circuit boards you will get a parts list.
Otherwise, just write them down from the circuit diagram.
  Reply With Quote
Old 30th November 2001, 07:18 AM   #9
diyAudio Member
 
Join Date: Nov 2001
i will make a board my self i find it a little diffcult to read those numbers, could and ony write them done for me please? along with what part they are (r1,r3,c1....) Many Many thanks to whoever dose it. also i am thinking of making 5 of them for each speaker, will i have to make 5 PS's for them or will one do and how many amps will the input of 240v ac pull for them all?? as i can only pull a max of 20amps off my power sockets
  Reply With Quote
Old 1st December 2001, 02:41 AM   #10
diyAudio Member
 
Join Date: Nov 2001
ok i got a parts list but have to following probs
A. i can't find anyone with the Q7 and Q8 (A1302 and C3281) transitors in New Zealand
B. what is T1 in the PS design he gives? or dose anyone have access to a good +/- 35v PS design (240v AC 50hz)???
  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
Building 2 new subs.Rythmik Auido C.A.P Subwoofers 8 4th February 2008 09:29 PM
Newbie in need of help here! moboman78 Everything Else 5 30th November 2007 07:52 AM
Help for a newbie? mtrout Chip Amps 4 11th March 2007 01:38 AM
auido ideas millionknives Car Audio 0 15th February 2005 06:56 AM
newbie post, but hopefully not a newbie question wiredcur Solid State 3 24th August 2002 10:49 PM


New To Site? Need Help?

All times are GMT. The time now is 07:06 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