Go Back   Home > Forums > Loudspeakers > Multi-Way

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
Reply
 
Thread Tools Search this Thread
Old 20th February 2013, 04:49 AM   #21
Jay1111 is offline Jay1111  United States
diyAudio Member
 
Join Date: Feb 2013
Location: AZ
Quote:
Originally Posted by gainphile View Post
Where these 4" drivers will fail as a "tweeter" are distortion and stored energy. Just like any other full range of similar size.

Click the image to open in full size.
Looks pretty good to 400hz?

Plenty of tweeters look worse higher up

Seas 27 TDFC
Click the image to open in full size.
  Reply With Quote
Old 20th February 2013, 04:56 AM   #22
ScottG is offline ScottG  United States
diyAudio Member
 
Join Date: Feb 2003
Location: US
Quote:
Originally Posted by gainphile View Post
Where these 4" drivers will fail as a "tweeter" are distortion and stored energy. Just like any other full range of similar size.

Click the image to open in full size.
That looks more like a pass than a fail to me. Perhaps "average" at 1 watt over a normal tweeter's passband (..neither good or bad).

The stored energy (seen in the CSD) is *better* than average:

http://www.zaphaudio.com/temp/Scan-S...424G00-CSD.gif


An important item that *isn't* shown is its linear and non-linear operation at higher power inputs vs. that of typical tweeter. Of course the crossover implementation will factor-in heavily for the tweeter under such a comparison. (..btw, this is also very important when comparing these small "mid" drivers to one another. Most are not as sensitive as the 10f, often by as much as 6db.)


Another interesting item with measurements is freq. response with respect to distance. These mid drivers are not terribly linear at closer range - and this does seem to factor-in with respect to the pressure gradient and apparent image localization/stability.
__________________
perspective is everything

Last edited by ScottG; 20th February 2013 at 05:05 AM.
  Reply With Quote
Old 20th February 2013, 01:45 PM   #23
diyAudio Member
 
Join Date: Jun 2011
Location: Kent
I never intended to run the upper midrange past 6K as I would be crossing over to a tweeter of some description.

One thing I wanted to know is would the Fostex FE103en be a good substitute for the SS-10F as I have a pair lying around and would rather utilize them than have to buy ANONTHER pair of drivers.

If I were to build a Nao Note II RS would substituing drivers be a problem, as I also intend on using my Seas L22RNX/P 8" drivers for the lower midrange.
  Reply With Quote
Old 20th February 2013, 08:34 PM   #24
ScottG is offline ScottG  United States
diyAudio Member
 
Join Date: Feb 2003
Location: US
Quote:
Originally Posted by rich31td View Post
I never intended to run the upper midrange past 6K as I would be crossing over to a tweeter of some description.

One thing I wanted to know is would the Fostex FE103en be a good substitute for the SS-10F as I have a pair lying around and would rather utilize them than have to buy ANONTHER pair of drivers.

If I were to build a Nao Note II RS would substituing drivers be a problem, as I also intend on using my Seas L22RNX/P 8" drivers for the lower midrange.
The FE103en might actually sound better (or may not), but it certainly won't measure anywhere near as linear (..on an infinite baffle).

Still, provided you have an acceptable crossover for it (within an overall design parameter) - sure, it's a viable substitute. Note that Xmax in particular is extremely limited, requiring a design that will accommodate that restriction. A high-pass at 1 kHz certainly has a better chance of working - but it's something you should still model.
__________________
perspective is everything

Last edited by ScottG; 20th February 2013 at 08:37 PM.
  Reply With Quote
Old 20th February 2013, 10:36 PM   #25
tvrgeek is offline tvrgeek  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Md
The full range drivers like the Foxtex allow serious breakup modes to "fill in" the highs where a big heavy cone like the 103 can't move by itself. It is the best behaved of the line. If you want a midrange, buy a midrange. I may be trying to get the Fountek FE89's to behave to 5K, but my fall back is to upgrade my FE85's on my desktop so the risk is small.

This is just physics. A 3 inch midrange cone is not a tweeter any more than a 6 inch is a sub-woofer no matter how hard people want them to be. Nature does not suffer fools. Some people have a inner need to prove this to themselves time and time again. I am too old for that and too cheap. I take advice easier that I did 40 years ago. Model. Prototype.
  Reply With Quote
Old 22nd February 2013, 06:40 AM   #26
diyAudio Member
 
Join Date: Apr 2012
Location: Sydney
Nothing wrong at all with the SS as a mid- tweeter. You guys need to get over your dispersion obsession.

And a wee bit of elevated 2nd order distortion is not even worth talking about, considering you won't hear it. Seriously, life is too short for this academic nit-pickery

Oh, and beware of "reviewers“ with vested interest.
  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
ScanSpeak 10F inrank Full Range 64 9th September 2012 10:55 AM
Wanted Seas 10F-M H084 paul_peraic Swap Meet 4 1st July 2012 11:32 PM
Scan-Speak Discovery 10F/4424G / 10F/8424G BHTX Full Range 2 15th May 2012 02:13 PM
FS: Scanspeak Discovery 10F/8424G00 4" Midrange pair matevana Swap Meet 1 26th October 2011 03:12 PM
Mid ss 10f/4424g: Wanted tweeter with a small flange Makc Multi-Way 7 22nd October 2010 06:36 PM


New To Site? Need Help?

All times are GMT. The time now is 06:22 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