|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
143.48.41.26
In Reply to: RE: Difference Models of Altec 414 posted by Coner on October 31, 2016 at 14:26:05
One particular area of difference that I have found between the 414A and 414C (aside from the magnet return pot construction) is the magnet strength. The 414A is listed as 10,000 gauss while the 414C is listed at 9,000 gauss. This may account for the stated 3 dB difference in efficiency between the two. I'm not sure if it would affect the extension on the top end.
Follow Ups:
Hi,The current GPA versions measure around ~94dB.. While the earlier 414A/Z have been measured to have a higher sensitivity.. It's ~98dB based on independent measurements from Bill Woods, a guy from England, and another one from Eastern Europe. I don't have the links to the latter, sorry. I can't remember where I saw them.
Edits: 11/18/16
The GPA 414B looks identical to the 414C, but has a lower Fs (25 vs. 30hz), which may imply a slightly heavier cone and consequently lower efficiency.
Edits: 11/18/16
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: