anybody know this small f-r speaker/parameters? - 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 4th January 2013, 02:40 PM   #1
diyAudio Member
 
Join Date: Mar 2004
Location: Krakow
Default anybody know this small f-r speaker/parameters?

hello
good 2013
last time I bought failured ipod/radio player Miedion 8503.
inside were those speakers marked only UPS 8Ohm 5W.
the diaphragma diameter is ~6,5 cm.
I want to stack it in PCV tube enclosure and use with small V to I amp.
what could be optimal parameters for it like Q, Fs etc?
thank you in advance!
Attached Images
File Type: jpg 2013-01-04-220.jpg (197.7 KB, 97 views)
File Type: jpg 2013-01-04-221.jpg (199.7 KB, 96 views)
File Type: jpg 2013-01-04-222.jpg (197.4 KB, 95 views)
__________________
regards, Pawel
  Reply With Quote
Old 30th January 2013, 11:46 AM   #2
diyAudio Member
 
Join Date: Mar 2004
Location: Krakow
... anyway...
the first rough test was very disappointing
strong pipe resonance and the bass weaker than I expected, mid/trebles good, very wide stereophony.
After some time of listening I have got to used to it
but I think: do not walk this way
Attached Images
File Type: jpg _DSC1866.jpg (221.9 KB, 64 views)
File Type: jpg _DSC1867.jpg (176.5 KB, 62 views)
__________________
regards, Pawel
  Reply With Quote
Old 30th January 2013, 01:47 PM   #3
xrk971 is offline xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Did you fill it with some stuffing? Is there a vent? If not, you may want to consider turning it into a bass reflex. Put a good amount of felt or open cell foam at the bottom to reduce pipe resonance. The image of the driver looks a lot like a Visaton FRS8 - but that is a 30W rated driver so not the same.
  Reply With Quote
Old 1st February 2013, 10:40 AM   #4
diyAudio Member
 
Join Date: Mar 2004
Location: Krakow
Quote:
Originally Posted by xrk971 View Post
... but that is a 30W rated driver so not the same.
thank you
no, there was no filling - just quick try...
I can see that those speakers were too small power rated.
I am going to get bigger/better and fit them inside - would you recommend types?
Please write more about this foam at the bottom of the pipes?
thank you in advance
__________________
regards, Pawel
  Reply With Quote
Old 1st February 2013, 10:52 AM   #5
xrk971 is offline xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Pawel,
Before you give up on that PVC pipe speaker, put some pillow stuffing in it and listen. Or if you don't have any lying around, try fabric, towels, sponges, etc. Anything porous but damps sound waves. It might sound a lot better. Driver recommendations? If you are in the 3 to 4 inch driver size range, my favorite is the Vifa TC9FD. I have heard good things about Tang Band w3-881si. Both are budget drivers at $12 and $10 respectively in the US. The foam I am talking about is like this Amazon.com: Auralex 2SONO48CHA 2 Sonomatt Foam Panel, 48 2- 4'x8'x2, Charcoal: Musical Instruments
Regards,
X
  Reply With Quote
Old 1st February 2013, 10:54 AM   #6
diyAudio Member
 
Join Date: Mar 2004
Location: Krakow
thank you!
__________________
regards, Pawel
  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
no thiele small parameters H Burch Multi-Way 14 16th September 2012 01:39 PM
Thiele - Small parameters tomtt Multi-Way 0 25th March 2009 03:48 AM
Small parameters for a small free-air sub comjunky Car Audio 4 4th December 2007 04:45 PM
Thiel Small Parameters? lynkage Multi-Way 17 28th April 2004 08:32 AM


New To Site? Need Help?

All times are GMT. The time now is 04:31 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