|
|||||||
| Home | Forums | Articles | Links | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Multi-Way Conventional loudspeakers with crossovers |
|
We're saving for a new server - help us to serve you by Donating Today and become a friend with benefits!
Ads on/off / Custom Title / 2009 Tshirt / More PMs / Bigger Images / Advanced printing |
|
![]() |
|
|
Thread Tools |
|
|
#1 |
|
diyAudio Member
Join Date: Dec 2001
|
For the T/S parameter Pe, do I use the nominal power, max power, short term max power, long term max power, etc.?
|
|
|
|
#2 |
|
diyAudio Member
Join Date: Jun 2003
Location: Chamblee, Ga.
|
I use short term max power since I want a good idea of how much dynamic headroom there is, but for it to be of any use, the program must plot the excursion limits so you can see the real aneochoic potential based on Xmax/whatever, and why I use BoxPlot 3.0 for quick sims.
If there's a dip in the FR I can keep changing Pe until there's none, showing me the more realistic limit, less room effects of course. GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents. |
|
|
|
#3 |
|
diyAudio Member
Join Date: Dec 2001
|
Thanks for the information.
Could you recommend to me a better loudspeaker modeling program than WinISD? |
|
|
|
#4 |
|
diyAudio Member
Join Date: Dec 2001
|
What diameter to use for dia? Do you include the surround or just the diaphragm.
Also, for tweeters, are Le and Xmax essential for modeling? |
|
|
|
#5 |
|
diyAudio Member
Join Date: Dec 2001
|
TTT
Is it ok to use the nominal power rating? |
|
|
|
#6 |
|
diyAudio Member
Join Date: Jun 2003
Location: Chamblee, Ga.
|
You're welcome! IMO, I just did. Normally the manufacturer will publish Sd, the effective piston area, so you can calculate the effective diameter from it: ((Sd/pi)^0.5)*2
If none is given, then you can ~measure it by including ~ the width of the surround, IOW measure from the mounting gasket across the center to the edge of the diaphram on the other side, or eyeball measure from peak-to-peak of the surround on both sides. Xmax/Le is required for a max performance XO/speaker design. Yes, you can use the nominal power rating, but you still need an excursion plot for it to be meaningful. Really, if you don't have it, might as well use 1W. GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents. |
|
![]() |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Amp power rating | woody | Everything Else | 1 | 28th May 2009 05:19 PM |
| Power rating | set | Multi-Way | 2 | 15th January 2005 03:48 AM |
| Rockford Fosgate Power 20001 bd amplifier power rating?? | pachoorion | Car Audio | 7 | 23rd October 2004 05:09 AM |
| Power rating of an IGC | Dr.H | Chip Amps | 15 | 21st November 2003 10:43 AM |
| New To Site? | Need Help? |
| Page generated in 0.14782095 seconds (80.62% PHP - 19.38% MySQL) with 10 queries |