500 watt monoblock - Page 2 - 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 8th April 2005, 12:30 PM   #11
rinox is offline rinox  Italy
diyAudio Member
 
Join Date: Oct 2004
My previous post about Peranders trick... a lot interesting, good sir
  Reply With Quote
Old 8th April 2005, 12:33 PM   #12
diyAudio Member
 
Join Date: Mar 2004
Location: London
Default whoops

My mistake!
  Reply With Quote
Old 8th April 2005, 12:34 PM   #13
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
Quote:
Originally posted by rinox
Edl.... excuse me but isn' t really good to bridge, beacause the really impedance viewed from bridged amply become an half of the real, so you must make an amplifier that will work without problems into 2 ohm or less... at this power is just painfull
In this case he wants to drive an 8 ohm speaker so each amp will only see 4 ohms which is not a particularly bad challenge. I agree with you if he wanted to drive a 4 ohm load though.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 8th April 2005, 05:55 PM   #14
RogerG is offline RogerG  United States
diyAudio Member
 
Join Date: Apr 2005
Location: Atl, Ga
Thank you all!
I was thinking about a bridged pair. But would like to only build 2 amps.
They are for home use. Driving PylePro 15's @ 500wrms/750peak/8, horn loaded. A carver m400 and ampzilla II have both given up trying to drive them hard.
I thought 100+ rail voltage would be the case. The MJ15024/25 with MJ15030/31 drivers were an idea. I have used them as replacements in pro gear before.
I have all ways repaired or, modified gear. This is my first design plan. I'm just thinking about the outputs for now. Input and VAS will come after I know what it will take to make this kind of power.
Thanks again
Roger
  Reply With Quote
Old 8th April 2005, 06:04 PM   #15
gengis is offline gengis  United States
diyAudio Member
 
gengis's Avatar
 
Join Date: Feb 2005
Location: Midwest--IA
Lightbulb Try this link

Hello,
Try this link. Scroll down to the bottom and click on the power amplifier link.
  Reply With Quote
Old 8th April 2005, 06:05 PM   #16
gengis is offline gengis  United States
diyAudio Member
 
gengis's Avatar
 
Join Date: Feb 2005
Location: Midwest--IA
Talking The link

Sorry,
The link:
http://www.schematicsforfree.mattsoft.net./
  Reply With Quote
Old 8th April 2005, 06:17 PM   #17
edl is offline edl  Hungary
diyAudio Member
 
edl's Avatar
 
Join Date: Oct 2004
Quote:
Originally posted by RogerG
Thank you all!
I was thinking about a bridged pair. But would like to only build 2 amps.
They are for home use. Driving PylePro 15's @ 500wrms/750peak/8, horn loaded. A carver m400 and ampzilla II have both given up trying to drive them hard.
I thought 100+ rail voltage would be the case. The MJ15024/25 with MJ15030/31 drivers were an idea. I have used them as replacements in pro gear before.
I have all ways repaired or, modified gear. This is my first design plan. I'm just thinking about the outputs for now. Input and VAS will come after I know what it will take to make this kind of power.
Thanks again
Roger

sorry, I don' really speak english, so I don't understand your post. my question then is that now you would like to bulid two 250W/4ohm amps for bridging, or one 500W/8ohm amp?

regards
  Reply With Quote
Old 8th April 2005, 07:41 PM   #18
RogerG is offline RogerG  United States
diyAudio Member
 
Join Date: Apr 2005
Location: Atl, Ga
2 amps. 500/8. one for each loudspeaker
  Reply With Quote
Old 8th April 2005, 08:03 PM   #19
edl is offline edl  Hungary
diyAudio Member
 
edl's Avatar
 
Join Date: Oct 2004
OK, I see!
thank you!
  Reply With Quote
Old 9th April 2005, 09:59 AM   #20
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
Hmm, without bridging that is going to be a major challenge. You will have to use the new OnSemi MJL4302 and MJL4281 I think to cope with the rail voltages with enough safe operating area (SOA) to pass the required current.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  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
Yet another monoblock Sch3mat1c Solid State 4 22nd August 2009 12:00 AM
The best DIY monoblock? christianlie Solid State 10 17th December 2006 01:56 PM
3000 watt monoblock amp alphasonik Car Audio 5 31st August 2005 09:37 PM
New 220 Watt CMOS monoblock Leslie Horn Solid State 4 26th April 2005 06:57 AM
a 71A monoblock Joel Tubes / Valves 30 30th December 2002 09:19 PM


New To Site? Need Help?

All times are GMT. The time now is 02:58 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