SS 15M/4531K00 or Seas M15CH002 for a midrange - diyAudio
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 19th March 2008, 10:23 PM   #1
diyAudio Member
 
Join Date: Aug 2007
Default SS 15M/4531K00 or Seas M15CH002 for a midrange

Hello all,

I`m finally tready to move on with my speaker project. The woofers have been chosen and 99% the tweeters. However, it`s still not clear which midrange to pick up. Here is what I have chosen for this 3 way speaker:
Woofers: 2 x Scanspeak 18W/8545 ( 2 on each speaker )
Midrange: the options are:
1. Scanspeak 15M/4531K00
2. Seas M15CH002
3. Scanspeak 12M/4531
Tweeter: Scanspeak D2904/7100

The question here is which midrange would be the best fit between the tweeter and the woofers? I was looking at the SS 15M which I like as it will allow lower cut off for the woofers and will cover most of the most sensible spectre. A friend of mine suggested the 12M as a better option, what I don`t like with it is the high cut off freq. that should be used. So, by chance I found the Seas M15 driver. It looks quite impressive and I immediately got interested in it. The magnet system is much better as it will have low reflections back to the cone, the chassis looks good and this one has a phase plug.

Can you help me to choose the best option, how would these three midranges compare to each other and which one should be the best choice for this tweeter and these woofers? Any suggestions for a better tweeter in this price range?

Thanks!
  Reply With Quote
Old 20th March 2008, 11:36 AM   #2
diyAudio Member
 
Join Date: Mar 2006
Location: Cheshire
If you went for the 12M, then you could use this design as is: http://www.troelsgravesen.dk/ektagrande.htm though you would have to use 2x 18w/8531 G00 instead of your 18W/8545

This should save a lot of effort and many uncertainties as it has already been designed by a trusted guru.


I have also been thinking of an all Scanspeak 3 way for when I move to a larger house. I already have a pair of R2904/70000 tweeters and a pair of 15W/4531 G00 midwoofers.

I had imagined using the 15W as a mid - its performance is similar to 15M. For the bass I was thinking of one or two 26W/8861TOO drivers and perhaps end up with something like the Gershman Acoustics Opera Sauvage, see below.

I am not an expert, but I would suggest that you use the 12M if you choose the 18W units, or the 15M if you choose larger 26W syle of woofers.
Attached Images
File Type: jpg gershwin.jpg (1.5 KB, 405 views)
  Reply With Quote
Old 21st March 2008, 07:40 AM   #3
diyAudio Member
 
Join Date: Aug 2007
Thanks Dublin, I appreciate your reply. 26W has better bass performance than the 22W but would need a fullrange or a mid-woofer ( my opinion ) for the mids. A friend of mine did some simulations for the 26W and it really looks impressive.

The problem with my configuration is I have listened to some speakers using the Revelators and I didn`t like them at all. I do expect this comes from the box itself, but these sliced paper cone drivers still sound too soft to me, especially the female vocals, guitars and violin. I`ve listened to many live concertos, and these instruments sound much sharper than what comes out of the revelators. Amps were hybrids but I would not say this is because of the input valve.
I looked at some options in the face of the Seas nextel drivers, this is why I asked if anybody has any experience with them. I liked the sound of the magnesium cones but the crossover for these drivers scares me. i`m not sure if i can make them sound with no metal coloration.
  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
WTB: Need SEAS Midrange: H454 richard pfeffer Swap Meet 3 29th June 2010 08:04 PM
Searching for Seas MCA11 midrange Norcad Multi-Way 0 18th May 2008 09:07 AM
Seas Excel M15CH002E0043 vs ScanSpeak 15M/4531K00 relevator ssstromar Multi-Way 4 14th September 2007 06:49 PM
Seas Excel M15CH002 oldbar Multi-Way 5 4th April 2006 11:34 PM
SS or Seas Excel as a midrange esl Multi-Way 22 7th October 2004 10:57 PM


New To Site? Need Help?

All times are GMT. The time now is 04:57 AM.


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