University alnico 12" spec request. - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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
Reply
 
Thread Tools Search this Thread
Old 15th August 2011, 06:21 PM   #1
diyAudio Member
 
Join Date: Jan 2010
Default University alnico 12" spec request.

Just bought a University 12" alnico speaker to use in a guitar amp. Its a 6200 model rated for 30 watts, 8 ohm. Wondering if anyone can give me any specs or other info on these speakers? My understanding is that University was somehow linked to Altec, and that these have a "W" magnet, which is supposed to be a good thing.

I know this application would lead one to put this thread in the "Instruments" section, but as this driver was originally for other uses I thought those looking in this section might be more knowledgable.
  Reply With Quote
Old 16th August 2011, 03:51 AM   #2
GM is offline GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
All I know is that the recommended cab was 5 ft^3 and F5 tuned to 40 Hz.

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 16th August 2011, 08:45 PM   #3
diyAudio Member
 
Join Date: Jun 2004
Location: central Pennsylvania, USA
RC,

I have no experience with the 6200 12-inch full range, but have measured TS parameters for others of that period, including the 8 and 12 inch Diffusicones and the 6201 coax. The 6201 might be a close derivative, but there are critical differneces. The 6201 has the same magnetic structure as the 12 inch Diffusicone (based on visual inspection). The 6200 is spec'ed as having a 1 pound alnico magnet, while the Diffusicone has a 1 1/2 lb alnico magnet (see hifilit.com).

They all have relatively high Qts (0.4-0.7)and are quite efficient (95-97 db/w/m). Surround compliance is moderate so Vas tends to be moderate also. For example, for the 6201: Qts 0.50, Fs 50.5 Hz, Vas 3.28 cf, spl 94.6, Re 7.8 ohms (rated '8-16').

The highish Qts does mandate a quite large cabinet for BR use. All this is to suggest that the 6200 would probably work quite well in an open back cabinet about the size of a Fender Deluxe, especially with tube amplification and a little bass boost. For ss amplification more bass boost would be required. A vintage driver is not likely to take well to being overdriven by a ss amp. PP or SE 6V6 would be ideal.

Regards,

Bob
  Reply With Quote
Old 17th August 2011, 01:02 PM   #4
diyAudio Member
 
Join Date: Jan 2010
Thank you, that is very helpful. Sounds like I made a good choice. I've been searching for an alnico driver that will fit into a vintage Ampeg Jet, but be able to handle the 15 or so watts better than the stock Jensen, CTS, or Rola drivers. I love the sounds I get using something like a Celestion Blue, but the large magnet on those won't fit into the cab due to proximity to the tubes.
  Reply With Quote

Reply


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
FS: University 6201 12" coaxial drivers JoshK Swap Meet 28 1st May 2013 09:12 PM
F/S Alnico 12" Speakerlabs/ Alpha 15a nvrgdenuf Swap Meet 5 17th June 2011 09:14 PM
Saba Alnico XXL woofer 12" thomaseliot Multi-Way 4 4th August 2010 07:44 PM
Jantzen 12" woofer Alnico Zero Cool Swap Meet 1 7th December 2006 11:17 PM


New To Site? Need Help?

All times are GMT. The time now is 05:46 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2