Blueprint1503 DUMAX report is wrong? - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles diyAudio Store Gallery Wiki 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
Thread Tools Search this Thread
Old 1st January 2002, 07:10 AM   #1
pkgum is offline pkgum  Australia
diyAudio Member
Join Date: Oct 2001
Location: sydney
Default Blueprint1503 DUMAX report is wrong?

The T/S parameters of the Blueprint website and the DUMAX report for the Blueprint 1503 are entirely different. In emailing Pat of Blueprintdrivers about the issue he replied:

"In talking to Eric at Dumax, he found that the Re measure for the 1503 tested was wrong. This changed the derived Q parameters and lowered the SPL. We did not send the driver back for retesting as those who have measured the driver found our inital specs to be fairly accurate. Our reason for Dumax testing was not to have a set of "accurate" specs (our LMS, FG, and other methods have proven to be consistant) but to put peoples minds
at ease about our Xmax claims."

Should I use the DUMAX report or the specs on the Blueprint website?
  Reply With Quote
Old 1st January 2002, 08:26 AM   #2
Warp Engineer
On Holiday
AudioFreak's Avatar
Join Date: Oct 2001
Location: Queensland, Australia
I think you'll have to use the manufacturer's data.
  Reply With Quote
Old 1st January 2002, 12:51 PM   #3
diyAudio Member
Join Date: Oct 2001
Location: 5280'

You can ruminate around the different specs until the moon turns blue, but it really doesn't matter. We used the DUMAX specs comparing the HE-15 vs the BPD 1503 for the AS-15 design and it came out dead on target
  Reply With Quote


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
Wrong Voltage / current on BoZ... or Wrong Measuring ? gionag Pass Labs 8 14th May 2008 11:24 AM
Reading DuMax Report: Symmetrical Field? kelticwizard Multi-Way 3 24th November 2003 01:13 PM
Dumax Xmax....unfair???? masterp2 Subwoofers 14 6th March 2002 09:38 PM
Dumax report for HE-15 masterp2 Subwoofers 0 28th February 2002 06:40 PM

New To Site? Need Help?

All times are GMT. The time now is 12:30 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2