issue WinISD port length Qes/Pe!

Amit_112dB · 3rd August 2007, 09:04 PM

hi
i am having a problem with my winISD i was trying some Sony DVC from this site
http://www.xplodsony.com/technology/...fer+Parameters

it is giving me the port length as Qes/Pe! red colour

any idea what this is

BHTX · 3rd August 2007, 09:17 PM

Usually, it means that the port velocity is too high, and the diameter of the vent needs to be increased substantially. A rule of thumb is to keep the vent mach under 0.16 or so, although I'd say this is dependent on a number of variables, including the application for the driver being used..

However, I've also seen WinISD Beta (what you're obviously using) go completely whacko with the vent lengths while the Qes/Pe! msg won't go away. If this happens, simply close WinISD, reopen, and start over. In fact, this happened to me again just yesterday. On another topic, WinISD isn't the most accurate of all things, and the Beta version certainly isn't. I've also heard things about vent lengths displayed being incorrect.

~ Brandin

Foxx510 · 3rd August 2007, 11:21 PM

It usually means that the power spec (PE) or another parameter has not been entered for the driver. Just check the T/S specs and see what is missing.

BHTX · 4th August 2007, 12:53 AM

Yeah, that'd definitely cause the error as well..

"Max RMS Power(W)"

..Enter the RMS power rating for Pe, listed in the specs for which ever woofer you're looking at.

Amit_112dB · 4th August 2007, 06:26 AM

Quote:

Originally posted by BHTX
Yeah, that'd definitely cause the error as well..
"Max RMS Power(W)"

I thought Pe was not important, i missed Pe rms value in details

thanks to you all

3rd August 2007, 09:04 PM	#1
Amit_112dB diyAudio Member Join Date: Jul 2007	issue WinISD port length Qes/Pe! hi i am having a problem with my winISD i was trying some Sony DVC from this site http://www.xplodsony.com/technology/...fer+Parameters it is giving me the port length as Qes/Pe! red colour any idea what this is

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Port length in WinISD?	Marsh	Subwoofers	10	1st July 2007 07:42 PM
WinISD vs. UniBox on port tuning	dscline	Subwoofers	3	27th September 2006 05:39 PM
Help with port length please	Bobhof	Multi-Way	3	2nd May 2006 06:32 PM
Winisd port configuration	toenail	Subwoofers	3	30th January 2006 01:23 AM
port length	dave k	Multi-Way	13	13th July 2003 02:32 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

3rd August 2007, 09:17 PM	#2
BHTX diyAudio Member Join Date: Feb 2006	Usually, it means that the port velocity is too high, and the diameter of the vent needs to be increased substantially. A rule of thumb is to keep the vent mach under 0.16 or so, although I'd say this is dependent on a number of variables, including the application for the driver being used.. However, I've also seen WinISD Beta (what you're obviously using) go completely whacko with the vent lengths while the Qes/Pe! msg won't go away. If this happens, simply close WinISD, reopen, and start over. In fact, this happened to me again just yesterday. On another topic, WinISD isn't the most accurate of all things, and the Beta version certainly isn't. I've also heard things about vent lengths displayed being incorrect. ~ Brandin

3rd August 2007, 11:21 PM	#3
Foxx510 diyAudio Member Join Date: Nov 2006	It usually means that the power spec (PE) or another parameter has not been entered for the driver. Just check the T/S specs and see what is missing.

4th August 2007, 12:53 AM	#4
BHTX diyAudio Member Join Date: Feb 2006	Yeah, that'd definitely cause the error as well.. "Max RMS Power(W)" ..Enter the RMS power rating for Pe, listed in the specs for which ever woofer you're looking at.

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