Posted by GarMan [ 216.13.136.38 ] on April 15, 2004 at 08:18:19:

In Reply to: Re: Confused about sensitivity information posted by Adrian Mack on April 14, 2004 at 18:30:59:

I always thought the response curve was correct. I've cut and paste below the measurement description found on every driver's web page:

Eminence response curves are
measured under the following
controlled test conditions:

* All speakers are tested at 1W/1m
using a variety of test set-ups for
the appropriate impedance
* LMS using 0.25" supplied
microphone (software calibrated)
mounted 1m from wall/baffle
* 2ft. X 2 ft. baffle is built into the
wall with the speaker mounted
flush against a steel ring for
minimum diffraction
* Hafler P1500 Trans-Nova
amplifier
* 2700 cu. ft. chamber with
fiberglass on all six surfaces
(three with custom-made
wedges)

This sounds consistent with the description found on the sensitivity page you provided, but yet, the numbers don't match up. What gives? Someone's going to receive a nasty letter.

Gar.

Replies:

• Re: Same measurement method by different results? - Adrian Mack 09:53:59 04/15/04 (1)
  • Re: Same measurement method by different results? - John Sheerin 07:18:06 04/21/04 (0)