DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 20 Feb 2018, 16:28

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: 18 Mar 2015, 17:41 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 4833
Location: Australia
I have made a 100W and 500W Class D amp based on the Sure amp modules. These both used one type of chipset. The 500W sold and a friend is very interested in the 100W version which sounded excellent with his $30K Brodman speakers. But I wanted to have s listen to the IR chipset. And I wanted to build something left of centre. How about a 1500W pc amp.

Into 8ohms the amp should deliver about 550W pc RMS.

I don't need 1500W I barely used any of the 500W of the other amp though it was a more detailed and dynamic amp than the 100W currently in my system. The 100W has some more warmth than the 500W version.

I have completed the mains area for the 1500W amp and tomorrow pickup the two 500VA trannies. I'm using two 47,000uf caps (single Mundorf caps) plus a 35A rec. bridge. I have also ordered two other Class D modules. One has IR chips for 180W pc and the other Tripath chips for 250W pc. More to come.

_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "Mimic Carbon" - carbon resistors and PIO caps. MM phono preamp
Website: retro-thermionic


Top
 Profile  
 
PostPosted: 23 Mar 2015, 18:47 
Offline

Joined: 09 Oct 2012, 19:43
Posts: 266
Location: Vancouver Canada
WOOOoooooooow that would be a good match with one/two of the Electro-Voice 36" woofers. Combine it with a 6'x4'x3' cabinet then revvv up the pop-corn machine and start the movies we goina have us some bass tonight.


Top
 Profile  
 
PostPosted: 23 Mar 2015, 20:20 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 4833
Location: Australia
This project is on hold. All the bits won't fit in a 3U 19" rack mount. Now the PS will go in a 3U and the amp module in a 2U. I had the enclosure drilled for an amp. Another Class D module arrived from Digikey. It is a IR 250W module. Different chipset to the Sure modules.

The IR module went into the enclosure with some Mundorf Mytec 47,000uf caps (2). The caps are well over $100 each. If you discharge them through a 100ohm resistor they throw a blue flame, not a spark!

_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "Mimic Carbon" - carbon resistors and PIO caps. MM phono preamp
Website: retro-thermionic


Top
 Profile  
 
PostPosted: 24 Mar 2015, 13:28 
Offline

Joined: 09 Oct 2012, 19:43
Posts: 266
Location: Vancouver Canada
I can't imagine anyone using an amp that big for a home stereo. One good bass thump and the neighbors would wake up 3 blocks down in someone else's bed. errrrrr ya ok i do get it. wink.


Top
 Profile  
 
PostPosted: 24 Mar 2015, 17:49 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 4833
Location: Australia
There is a few pro amp builders providing commercial amps around this power. Easy in Class D.

_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "Mimic Carbon" - carbon resistors and PIO caps. MM phono preamp
Website: retro-thermionic


Top
 Profile  
 
PostPosted: 23 Dec 2015, 06:47 
Offline
Project Author
User avatar

Joined: 06 Jun 2008, 18:23
Posts: 4833
Location: Australia
Just sold my T4 Class D so this amp is inching closer to existing.

_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "Mimic Carbon" - carbon resistors and PIO caps. MM phono preamp
Website: retro-thermionic


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy