CHR-70 Power needs - diyAudio
Go Back   Home > Forums > Commercial Sector > Manufacturers > Markaudio

Markaudio Designers and builders of audiophile grade drivers

Reply
 
Thread Tools Search this Thread
Old 23rd July 2012, 07:23 AM   #1
Spec is offline Spec  Australia
diyAudio Member
 
Join Date: Apr 2012
Location: Wollongong, Australia
Default CHR-70 Power needs

Hey guys, Up for discussion is how much power to feed to a pair of CHR-70's

I cant decide on how much I need.

Basically they are my CHR-70's in my shoebox thread.

Desktop Near fields.

Audio Signal will be going thru a MiniDSP

I have my eye on using the MiniAMP in BTL mode for 2x20w

The CHR's are going to be HP'd and there will be either a single or dual 8" woofer for low end duties under the desk. Depending on the option I can get a 2nd miniAMP and feed 2 cheaper 8" subs 20w each, or if I go for another amp I can get a higher powered 8" and feed it whatever I can get for that.

So basically I'm looking to make a nice easy 3 channel amp from modules.

Thanks Spec!
  Reply With Quote
Old 23rd July 2012, 08:16 AM   #2
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Subs/woofers are likely to need more watts/channel.
  Reply With Quote
Old 23rd July 2012, 03:32 PM   #3
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Spec,

Are you planning to go Class-D both ways? I've played around with Hypex UcD, ICEPower, and Tripath Class-D modules. I like the Hypex UcD180ST most - but at the same time it's also the most expensive Class-D I have, and it is with a Hypex SMPS. For Class D quality of power supply matters.

Have read that 41Hz makes nice sounding Tripath amps - if you are game putting together an amp from parts, check out their website. If you want integrated modules (you just have to connect the wires and put them into a box), you can look at Hifimediy - I have their T4 amp which is decent - besides MA FR drivers, they can also drive my subs pretty well (currently not using subs ).

Be ready to use a bit of equilization with Class-D though. The mid-bass region can sound lean with FR drivers. I have no experience with the new CHR-70.3 though and how they play with Class-D.
  Reply With Quote
Old 24th July 2012, 03:53 AM   #4
Spec is offline Spec  Australia
diyAudio Member
 
Join Date: Apr 2012
Location: Wollongong, Australia
I'm currently think D class amps as they seem to have the better value and dont require a large power supply.

EQing them doesn't bother me, Personally I'm not a huge fan of flat curves and Ill be using a miniDSP which will give me a heaps of EQ points if I choose the right plugin.

I spent an hour looking at 42Hz site last night, eyed off a few items there, SMD stuff isn't easy to DIY, but I have the skill to do that, so shouldn't be an issue.

I'm using the CHR-70.2's
  Reply With Quote
Old 24th July 2012, 05:07 AM   #5
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Besides SMD, there are some hole mounted options too.
  Reply With Quote
Old 24th July 2012, 05:10 AM   #6
Spec is offline Spec  Australia
diyAudio Member
 
Join Date: Apr 2012
Location: Wollongong, Australia
Correct, But its hard to find an option that will allow me to build 3 channels in one chassis.

Man, You know a heap of nice looking amps, thanks heals for the help, so far, haha.

They Hypex and Hifimediy look good.

Its hard to find an product from them that lets me run 3 single channel amps from a single power supply, It might be better building them as separate items and using separate enclosures.
  Reply With Quote
Old 24th July 2012, 06:35 AM   #7
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Spec, to start off keeping your 2 amps in two seperate compact enclosures will be simpler and possibly offer more flexibility. There are nice and slim enclosure available - you can check Siliconray on the diyAudio site. BTW, Some folks have already nice projects with 6 channels in one box, but as a newbie that kind of scares me.

Talking about nice Class D amps there's another called Tristan by Maedos - it takes a TK2050 design from 41 Hz and improves it.

DiyAudio member Kristleifur was a big help in understanding the Tripath and Class-D scene better.
  Reply With Quote
Old 24th July 2012, 06:59 AM   #8
Spec is offline Spec  Australia
diyAudio Member
 
Join Date: Apr 2012
Location: Wollongong, Australia
Throwing a whole heap of crap into one box doesn't scare me too much, I'm an aircraft engineer by trade, Avionics, A mass of wires doesn't scare me :P

However my wallet says build a 2ch for the monitors, then I can go about the sub later, Might cost a little more, buying 3 enclosures (2 amps and minidsp) and what not, but that can be done over a period of a few months.
  Reply With Quote
Old 24th July 2012, 07:09 AM   #9
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Quote:
Originally Posted by Spec View Post
Throwing a whole heap of crap into one box doesn't scare me too much, I'm an aircraft engineer by trade, Avionics, A mass of wires doesn't scare me :P

However my wallet says build a 2ch for the monitors, then I can go about the sub later, Might cost a little more, buying 3 enclosures (2 amps and minidsp) and what not, but that can be done over a period of a few months.
Avionics... you guys are used to miles of wiring!
  Reply With Quote
Old 24th July 2012, 07:12 AM   #10
Spec is offline Spec  Australia
diyAudio Member
 
Join Date: Apr 2012
Location: Wollongong, Australia
Indeed, Its a shame one of our good avionics departments got shut down, They had reels and reels of awesome shielded Teflon twisted pair wires. Hard to find about the place now days. But I think I should have some hanging around the joint
  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
CHP-70, CHR-70 package size & weight nightuser Markaudio 11 14th March 2012 08:45 PM
chr-70 vs. chp-70? Sonogasm Full Range 10 26th November 2011 05:02 PM
CHR-70, CHP-70, Alpair 7 Desktops - Japan markaudio Full Range 4 1st February 2010 01:42 AM
F.A.S.T. Project: Tangband W3-315 vs. MARK AUDIO CHR-70, CSS EL-70 or Alpair jockel77 Full Range 13 11th January 2010 11:20 PM


New To Site? Need Help?

All times are GMT. The time now is 02:04 PM.


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