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

seeking advice on 16 ohm ATC Mid-Dome's and 21W/8554
seeking advice on 16 ohm ATC Mid-Dome's and 21W/8554
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
Thread Tools Search this Thread
Old 17th June 2003, 12:38 AM   #1
scraggles is offline scraggles  United Kingdom
diyAudio Member
scraggles's Avatar
Join Date: Mar 2003
Location: Hampshire
Default seeking advice on 16 ohm ATC Mid-Dome's and 21W/8554

I have an opportunity to obtain some ATC SM150S - 3" Dome midrange units in 16 ohm. I havn't built any speakers for 10 years and am a bit rusty on the theory

How practical is it going to be to integrate these with 8 ohm tweeter and bass? I could use a parallel resistor, and go active later. I have a pair of Scan-speak 21W/8554 Kevlar 8" woofers and was thinking of a Scan-speak tweeter or possibly a ribbon device to use with the ATC's.

I was originally going to use the 21W/8554's to build a pair of sub units to go under the speakers on my avatar (left), but with the chance of the ATC mids I might relegate these to rear speakers. Incidentally these are Morel MDT30's & MW143. They have a smooth accurate sound that I really love, very articulate mid's and high's,b but really lacking in the low end.

Any suggestions would be gratefully received..
  Reply With Quote
Old 17th June 2003, 01:03 AM   #2
pinkmouse is offline pinkmouse  Europe
diyAudio Moderator
pinkmouse's Avatar
Join Date: Apr 2002
Location: Rotherham, England
seeking advice on 16 ohm ATC Mid-Dome's and 21W/8554
You lucky... erm.. person

Depending on which ATC you have they are about 92 to 94dB efficient, so even driving them with an 8ohm amp you will likely need to attenuate them to match the woofers.

I don't know the woofers at all, but to be honest, with the superb range of the ATCs you will probably be running them below about 350Hz anyway.

The tweeter will need to cross over at about 4k, so you don't need anything that goes that low, so your options are open, but AFAIK ATC are using Scan-speak tweeters in their current range of small monitors.

You could have the makings of a great pair of speakers here, good luck and keep us posted!
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 17th June 2003, 09:05 AM   #3
Kanga is offline Kanga  Australia
diyAudio Member
Join Date: Mar 2001
Location: Melbourne, Australia
Wilmslow audio use the ATC dome with an SEAS millenium tweeter in one of their kits, and the Scan-speak 25W8565 paper driver.
Someone on this site built that kit recently - do a search.

As Pinkmouse said, sensitivity shouldn't be a problem as the S version is very sensitive anyway. Usual XO for this driver is 380Hz, and from memory impedence compensation is used for the resonance peak and rising inductance.

I have no experience with this driver, but have been interested in using it. Reports are usually very good.

  Reply With Quote


seeking advice on 16 ohm ATC Mid-Dome's and 21W/8554Hide 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
Seeking Career Advice musgofasa Everything Else 9 8th January 2009 08:29 AM
Seeking amplifier kit advice which 1 to build? Stu_M Solid State 19 29th September 2007 01:09 PM
Help, serious newbie seeking advice!! redmagicsnake Solid State 1 21st November 2005 04:41 PM
Seeking Zen V7R/T and XBOSOZ advice. chemania Pass Labs 3 20th January 2005 07:43 AM
Seeking advice for my TT project Dumbass Analogue Source 1 7th September 2003 08:31 PM

New To Site? Need Help?

All times are GMT. The time now is 04:09 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio