Mark Audio CHR-70 Application Thread - Page 67 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 17th December 2010, 07:47 AM   #661
diyAudio Member
 
Tripmaster's Avatar
 
Join Date: Feb 2008
Location: UK
Nice pipe!
__________________
Richard
My photostream: http://www.flickr.com/photos/59839778@N04/
  Reply With Quote
Old 17th December 2010, 08:17 AM   #662
diyAudio Member
 
thunk303's Avatar
 
Join Date: Mar 2005
Location: Eltham, Melbourne, Australia
That was the only tricky bit since I didn't want the drivers protruding outside the pipe circumference.

As you can see from the photos, i used a ply mounting plate and HEAPS of liquid nails, the dowels hold the whole deal in place with more liquid nails.

I then shaped the outer surface with Plasti-Bond, a kind of fiberglass/bog stuff.

These are 1200mm long and have a random exit throat size, because I have no idea how to use MJK's worksheets yet and just like building things.

Speaking of which Dave + other!!!

ATL?

Dean
Attached Images
File Type: jpg TL Pipe - Driver mount.jpg (170.7 KB, 993 views)
File Type: jpg TL Pipe - Inside driver mount.jpg (86.6 KB, 971 views)
  Reply With Quote
Old 22nd December 2010, 10:58 PM   #663
nolby is offline nolby  Italy
diyAudio Member
 
Join Date: Sep 2010
How much power in watt needs an amplifier to drive nicely chr70 speakers?

Actually I use them with an amp ta2024 tripath chip, which is too weak (10w real). Do you think a ta2022 or tk2050 (both tripath 100w x2 4ohm) will bee fine?

Someone told me that for a speaker with impedance of 3,60 and efficiency at 84,5 I should use even more power.
  Reply With Quote
Old 23rd December 2010, 04:44 PM   #664
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by nolby View Post
How much power in watt needs an amplifier to drive nicely chr70 speakers?

Actually I use them with an amp ta2024 tripath chip, which is too weak (10w real). Do you think a ta2022 or tk2050 (both tripath 100w x2 4ohm) will bee fine?

Someone told me that for a speaker with impedance of 3,60 and efficiency at 84,5 I should use even more power.

too many factors to be considered, and there really is no single right answer - 100 "real" watts would be more than enough to hurt your ears and or the drivers

a lot of folks are quite happy with the quality of output from the CHR70 with as little as 10-12w of tube power (as we all know, they're "bigger" watts )
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 23rd December 2010, 06:25 PM   #665
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally Posted by chrisb View Post
a lot of folks are quite happy with the quality of output from the CHR70 with as little as 10-12w of tube power (as we all know, they're "bigger" watts )
Don (aka Doorman) is happy with 3.5.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 23rd December 2010, 07:04 PM   #666
doorman is offline doorman  Canada
diyAudio Member
 
doorman's Avatar
 
Join Date: Jul 2003
Location: Vancouver Isl. B.C.
Quote:
Originally Posted by planet10 View Post
Don (aka Doorman) is happy with 3.5.

dave

Don
  Reply With Quote
Old 23rd December 2010, 09:02 PM   #667
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by planet10 View Post
Don (aka Doorman) is happy with 3.5.

dave
Quote:
Originally Posted by doorman View Post

Don


but then he's a half deaf old fart like me who listens to only chicks and guitars and not very loud at that

now it's on ....


where's Cal to tell us how much is not enough?

who's been into the X-mas cheer and confections a bit early? - my head's gonna hurt later this evening
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 23rd December 2010, 10:51 PM   #668
doorman is offline doorman  Canada
diyAudio Member
 
doorman's Avatar
 
Join Date: Jul 2003
Location: Vancouver Isl. B.C.
Quote:
Originally Posted by chrisb View Post
but then he's a half deaf old fart like me who listens to only chicks and guitars and not very loud at that

now it's on ....


where's Cal to tell us how much is not enough?

who's been into the X-mas cheer and confections a bit early? - my head's gonna hurt later this evening
No argument from me, Chris! ( birth certificate says 65 in 2011)
The requirements for fullrangers pour moi ,are shrinking all the time- hearing impairment has its advantages!
Best, Don
  Reply With Quote
Old 31st December 2010, 03:31 PM   #669
jwmbro is offline jwmbro  United States
diyAudio Member
 
jwmbro's Avatar
 
Join Date: Nov 2007
Location: München, Bavaria, Germany
Hey guys, just built these:

Click the image to open in full size.

Click the image to open in full size.

Here they are taped up with masking tape, to try to get an idea how much stuffing is necessary:

Click the image to open in full size.

Once I make a finalized decision on the stuffing, and glue on the side wall, I'm going to add on a proper baffle to the front, so that the driver will be flush mounted, and so the grain of the plywood is covered up (and to add a roundover).

So far I'm pretty happy with what they can do at such a low price, and small form factor.

I will be using them as desktop computer speakers. So far I'm quite pleased, but I'm reserving final judgment for when I'm done. Very easy build (one evening's work).
__________________
Regards, James
  Reply With Quote
Old 6th January 2011, 03:07 AM   #670
tommy_o is offline tommy_o  United States
diyAudio Member
 
Join Date: Oct 2009
I'm just finishing my budget, sealed CHR-70s and was wondering if anyone uses CAT5 wiring as speaker cables. I've seen TNT Audio writings on different configurations (for example, here) but does anyone have preference or practices they've used in the past? This would mainly be a temporary wire straight out of the enclosure and to my amp.
  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
need great smd cap for audio application jsaggio Parts 1 11th September 2007 03:41 AM
CV4014 and 5650 - any audio application of these tubes? cm Tubes / Valves 0 18th January 2007 12:03 PM
Additional application for audio amps... ashok Everything Else 8 17th August 2005 08:20 AM


New To Site? Need Help?

All times are GMT. The time now is 08:38 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