Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Active sealed MTM with RS180P
Active sealed MTM with RS180P
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 2nd December 2017, 12:57 AM   #1
bogdan2011 is offline bogdan2011
diyAudio Member
 
Join Date: Apr 2015
Default Active 3-way with RS225

EDIT: Project changed, see post #14

I've been thinking of building some speakers with the Dayton Reference line for a while, but I'm unsure which way to go. I currently have a pair of HIVI K1 tweeters which I really like and will use in this system.
RS180P looks like a fair compromise between size and cost, and the paper cone version seems to go higher with smoother breakup. So the 2.5KHz crossover frequency is acheiveable.
So the question here is whether I should go with a single woofer or an MTM.
I'm not familiar with MTM systems, but I guess that two woofers will increase the SPL.
Crossovers will be active and the two 8ohm woofers will run in parallel.

Last edited by bogdan2011; 7th February 2018 at 09:52 PM. Reason: project changed
  Reply With Quote
Old 3rd December 2017, 02:52 PM   #2
gfiandy is offline gfiandy  United Kingdom
diyAudio Member
 
gfiandy's Avatar
 
Join Date: Jul 2003
Location: Cambridge UK
This is really personal preferance, I am not that much of a fan of MTM but some really love them. Have you heard any, do you like the sound presentation.

Another possible solution would be a 2.5 way solution where the bottom end is supprted by another identical driver just with a lowerfrequency crossover.
  Reply With Quote
Old 3rd December 2017, 10:53 PM   #3
bogdan2011 is offline bogdan2011
diyAudio Member
 
Join Date: Apr 2015
I haven't heard any, I'm just relying on greater SPL that can be achieved.
One other solution would be RS225 in a 3-way.
  Reply With Quote
Old 16th December 2017, 05:54 AM   #4
bogdan2011 is offline bogdan2011
diyAudio Member
 
Join Date: Apr 2015
I've eventually decided on RS225-4 either in a 3-way configuration or with a full range. Omnes BB3.5 would work well as a full range and would simplify the whole thing. For a midrange, I would go with Ciare HM130 and the HiVi K1s that I already have.
Fostex also have some speakers in the $30 range, but they're quite low power (15W or so).
I'm open to suggestions.
  Reply With Quote
Old 16th December 2017, 01:32 PM   #5
jimbro is offline jimbro  United States
diyAudio Member
 
Join Date: Nov 2010
Location: somewhere in Texas
Checkout this thread - 10F/8424 & RS225-8 FAST Ref Monitor
  Reply With Quote
Old 16th December 2017, 03:05 PM   #6
jimbro is offline jimbro  United States
diyAudio Member
 
Join Date: Nov 2010
Location: somewhere in Texas
I should add that at the top of that thread if you click on the update crossover link there will be a short list of less expensive full range drivers that will work.
  Reply With Quote
Old 17th December 2017, 04:06 PM   #7
bogdan2011 is offline bogdan2011
diyAudio Member
 
Join Date: Apr 2015
Quote:
Originally Posted by jimbro View Post
I should add that at the top of that thread if you click on the update crossover link there will be a short list of less expensive full range drivers that will work.
I'm surprised that 10W drivers are on that list. I know it's mostly used in the mid-high frequencies, but isn't there a big difference in power between the Dayton and them?
  Reply With Quote
Old 17th December 2017, 07:49 PM   #8
jimbro is offline jimbro  United States
diyAudio Member
 
Join Date: Nov 2010
Location: somewhere in Texas
It's been said by people much more knowledgeable than me that power handling specs in home audio are mostly irrelevant. All of those drivers have been used in that manner with even lower crossover points without issue afaik. As long as the amplifier is not clipping or you want concert levels in a large room from a small speaker, I don't think you should worry.
  Reply With Quote
Old 3rd January 2018, 08:37 PM   #9
bogdan2011 is offline bogdan2011
diyAudio Member
 
Join Date: Apr 2015
I came across Dayton PS95. Would it pair nicely in terms of power in the RS225 over 800Hz or so? It's only rated at 10W, but it's got good reviews.

Dayton Audio PS95-8 3-1/2" Point Source Full Range Driver 8 Ohm
  Reply With Quote
Old 3rd January 2018, 08:48 PM   #10
Ugg10 is offline Ugg10  United Kingdom
diyAudio Member
 
Join Date: Nov 2017
Location: UK
The Holtz Statement Monitor uses the RS180-4 along with a TB W4-1337SDF and a ribbon tweeter. I have been looking into this arrangement (interesting open back mid driver) with the paper version (RS180P-4) and swapping the ribbon tweeter out for a more cost effective SB21RDC ring tweeter. They seem to model well in the 24l box ported at around 35hz using just 24db/octave active crossovers in boxsim. A quick plot below with 24l box and 35hz port loading, light padding xover at 400hz and 3khz. There is a slight hump at around 2khz from the mid driver that could be taken out by a notch filter I guess. I reduced the height of the box slightly as I was looking at using a 5" Tube Mid arrangement from the Statesman (easier to construct and takes up less of the volume) rather than the wood constructed version of the Statement Monitor plus looking at options for a front slot port.

Statements_Monitor

Click the image to open in full size.

Last edited by Ugg10; 3rd January 2018 at 08:58 PM.
  Reply With Quote

Reply


Active sealed MTM with RS180PHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
RS28F-RS180P-B80 as Hole Filler 3-way xrk971 Multi-Way 196 18th February 2018 11:58 AM
Morel cat378 plus rs180p........ norman bates Multi-Way 68 4th October 2017 08:55 PM
MTM with RS180P-8 mid-woofers GOWA Multi-Way 6 2nd August 2017 04:34 AM
LX 521 sealed box, active halibutman Multi-Way 40 27th May 2016 04:36 PM
FS: Morel CAT378 & Dayton RS180P-8 GOWA Swap Meet 0 18th August 2014 01:30 AM


New To Site? Need Help?

All times are GMT. The time now is 03:52 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki