Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles Store Gallery Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

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
Closed Thread
 
Thread Tools Search this Thread
Old 4th May 2008, 04:08 AM   #881
soongsc is offline soongsc  Taiwan
diyAudio Member
 
soongsc's Avatar
 
Join Date: Mar 2005
Location: Taiwan
Quote:
Originally posted by Brett
Specifics?
I've already mentioned that whenever there is an impedance mismatch, energy cannot be transferred 100%. Thus it will reflect back into the driving electronics, effecting the output signal, or the cable can be designed to dissipate this energy through impedance matching design. Measurement equipment are strictly designed according to specific impedance interface requirements. This is not the case in audio systems, and thus the issue of effects of using different connection cables.
__________________
Hear the real thing!
 
Old 4th May 2008, 04:23 AM   #882
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
In it has already been shown to be irrelevant. Perhaps you have some measurements that would show this is not correct, rather than mere assertions that it is.
My background is RF and I do not think Z matching is very relevant at audio frequencies, for common length interconnects. Probably in the same league as skin effect.
 
Old 4th May 2008, 04:28 AM   #883
soongsc is offline soongsc  Taiwan
diyAudio Member
 
soongsc's Avatar
 
Join Date: Mar 2005
Location: Taiwan
Quote:
Originally posted by Brett
In it has already been shown to be irrelevant. Perhaps you have some measurements that would show this is not correct, rather than mere assertions that it is.
My background is RF and I do not think Z matching is very relevant at audio frequencies, for common length interconnects. Probably in the same league as skin effect.
Without being prejudice about frequency spectrums, the low of conservation of energy would still be relevant, wouldn't it?
__________________
Hear the real thing!
 
Old 4th May 2008, 04:45 AM   #884
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
Show me some measurements that could be considered audible, rather than theorising.
 
Old 4th May 2008, 04:50 AM   #885
diyAudio Member
 
Join Date: Mar 2007
Location: Canandaigua, NY USA
Yes, I hear nothing, my tri-amped system reveals nothing, just like my impedance measurements, and now you know the secret to true musical enjoyment. I am the pinball wizard of audio- I listen by sense of smell.
__________________
I used to be an audiophool like you but then I took an arrow to the knee.
 
Old 4th May 2008, 04:52 AM   #886
rdf is offline rdf  Canada
diyAudio Member
 
rdf's Avatar
 
Join Date: Jun 2004
Location: big smoke
A member since Jan 2004 and on your 8th post you chose to raise this thread from the dead. You one funny guy 69tahoe.
__________________
Ears aren't microphones.
 
Old 4th May 2008, 04:54 AM   #887
fizzard is offline fizzard  Canada
diyAudio Member
 
Join Date: Nov 2006
Conservation of energy is entirely superfluous in analyzing cable reflections.
 
Old 4th May 2008, 05:17 AM   #888
diyAudio Member
 
Join Date: Aug 2005
Location: Simon's Town, Cape Town.
Default Cables

Do you guys think psychology should be added to the curiculum for electronic engineering degrees?

Alot of the marketing propaganda is based on half truths, especially for speaker wire.
I've read a good few papers from engineers themselves (J L Hood and his ilk) stating that the most important is cross section surface area of conductor and legnth, for the sake of reistance mostly.
Capacitance and inductance play a negligable part in the legnths we need domestically.
Silver is only about 10% more conductive than copper, which makes a little difference but can the cost be justified? This only has an effect on conductivity and does not 'magically' improve the sound as some claims seem to illustrate.
The list goes on.
Has physics been corrupted by enterprise?
I've noticed all sorts of new compounds for use in cables, bandied about by ads in out favorite gadget/ hifi magazines. Seems like the periodic table has been scoured to find cool and new sounding product names.
There will be no end to this and I'm sure this debate will rage on for as long as there is a populace willing to part with its money.
Cheers all,
Carl
 
Old 4th May 2008, 05:18 AM   #889
soongsc is offline soongsc  Taiwan
diyAudio Member
 
soongsc's Avatar
 
Join Date: Mar 2005
Location: Taiwan
Quote:
Originally posted by Brett
Show me some measurements that could be considered audible, rather than theorising.
Personally I hear an audible difference before I even try to find how differences can be see in the data. There are people that can't find any difference, and believe there is not difference. It's fine, I'm not going heels over head to change their decision. For people that has determined a difference, they probably already know what they are doing.

I do learn lots of new vocabulary from these discussions.
__________________
Hear the real thing!
 
Old 4th May 2008, 05:21 AM   #890
soongsc is offline soongsc  Taiwan
diyAudio Member
 
soongsc's Avatar
 
Join Date: Mar 2005
Location: Taiwan
Quote:
Originally posted by fizzard
Conservation of energy is entirely superfluous in analyzing cable reflections.
It's good for sanity check
__________________
Hear the real thing!
 

Closed Thread


Hide this!Advertise here!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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



New To Site? Need Help?

All times are GMT. The time now is 09:41 AM.

Page generated in 0.22190 seconds (67.62% PHP - 32.38% MySQL) with 11 queries

Copyright ©1999-2012 diyAudio