Goodmans 201's - 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 26th July 2005, 10:16 PM   #1
diyAudio Member
 
Join Date: Sep 2004
Location: A bloke from Stoke
Default Goodmans 201's

Just bought a pair of 201's with Trebax horns in a IB box. I intend to play about with them mounted on an open baffle plate.

In a room 14X9' firing down the room what size baffle should I use and where to mount the speakers (offset?). I'll use any suggestions as starting point to experiment.

I'm currently using Magneplanar MMg's with a valve amp and want to see what the fuss is about with full range speakers.

Any comments / suggestions are very welcome

Kev
  Reply With Quote
Old 26th July 2005, 10:56 PM   #2
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
This might interest you:
http://www.decdun.fsnet.co.uk/loudspeakers2.html

As an alternative experiment, I'd try a 4'x3' sheet of MDF to start with, the driver slightly offset from the centre (about 6" diagonal) as a start and see what gives. Try starting at 2 feet from the rear wall and work forwards.

So far as I'm aware, there's no decent OB modelling software, bar Martin King's MathCad sheet, which he hasn't completed yet, and probably won't release even when it is, thanks so some loathsome little tykes taking advantage of all his hard work just to line their own pockets. Pity; but I don't blame him (quite the reverse: I support his stance wholeheartedly).

Cheers
Scott
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  Reply With Quote
Old 27th July 2005, 12:05 AM   #3
diyAudio Member
 
Join Date: Feb 2002
Location: Western Sydney
Default The Edge

'there's no decent OB modelling software' - I don't agree,
try 'the Edge' (i'm sure someone here will have the link);

Pete McK
  Reply With Quote
Old 27th July 2005, 07:58 AM   #4
Nuuk is offline Nuuk  United Kingdom
diyAudio Member
 
Nuuk's Avatar
 
Join Date: Feb 2003
Location: Somerset, SW England
You can read about my 201 open-baffles here (the link quoted about is to the old site which is no longer updated).

I assume you bought the 201's in the cabinets off Ebay UK this week Kevin?
__________________
The truth need not be veiled, for it veils itself from the eyes of the ignorant.
  Reply With Quote
Old 27th July 2005, 09:17 AM   #5
diyAudio Member
 
Join Date: Sep 2004
Location: A bloke from Stoke
Quote:
Originally posted by Nuuk

I assume you bought the 201's in the cabinets off Ebay UK this week Kevin?

Yes, picking them up this Saurday. I've seen your site and this and the Ciare250 thread were influencers in my decision to buy these. I noticed they are being used in a room much bigger than mine, hence the question about baffle size.

I was hoping to use smaller baffles than 4'X3' as this will completely dominate the end of my room being only 9'wide.

My amp will be rewired to triode mode from UL to reduce the power as the quoted sensitivity on these speakers is miles higher than on my current speakers.

THanks for the replies

Kev
  Reply With Quote
Old 27th July 2005, 10:30 AM   #6
Nuuk is offline Nuuk  United Kingdom
diyAudio Member
 
Nuuk's Avatar
 
Join Date: Feb 2003
Location: Somerset, SW England
Kev, you could go for smaller baffles but I think that you may find that you need a sub (or some EQ).
__________________
The truth need not be veiled, for it veils itself from the eyes of the ignorant.
  Reply With Quote
Old 27th July 2005, 11:15 AM   #7
diyAudio Member
 
Join Date: Sep 2004
Location: A bloke from Stoke
I notice that your Goodmans share the baffle with a tweeter, what is it, where do you cross it over and what xover do you use?

I think I'll start with a copy of your baffle and experiment with wings. If I need a sub I'll do some research as your TL subs will simply be too big. Annoying in many respects but WAF is a major consideration, SWMBO is not understanding about these matters.

Kev
  Reply With Quote
Old 27th July 2005, 12:02 PM   #8
Nuuk is offline Nuuk  United Kingdom
diyAudio Member
 
Nuuk's Avatar
 
Join Date: Feb 2003
Location: Somerset, SW England
The tweeters come from CPC (can't remember the exact code) and are silk domes costing around a fiver each!

Even living here on my own, I find the TL's rather large. I went with them as I had the drivers but I would prefer OB subs given the choice.

The one advantage of the TL's is that you can build a couple and if SWMBO doesn't like them, you just say "Fine dear you can throw them out while I am at work" knowing full well that she won't even be able to lift one!
__________________
The truth need not be veiled, for it veils itself from the eyes of the ignorant.
  Reply With Quote
Old 27th July 2005, 02:54 PM   #9
diyAudio Member
 
nullspace's Avatar
 
Join Date: Oct 2004
Location: Phila., PA
I'm shocked no one's mentioned the JE Labs OB. Several people over on AA (ivan303 in particular, I think) have had great success with the 201 on this baffle.

JE Labs OB
  Reply With Quote
Old 28th July 2005, 02:52 PM   #10
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
True -I haven't tried that one myself I admit, though I know it, and thought about trying one out at some point: I've only dabbled with OBs so far.
My gut feeling is that with a baffle much smaller than 4'x3', you're going to need some serious eq due to the acoustic cancellation. I hope to be proved wrong though!
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  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
Goodmans? paba Full Range 3 20th February 2008 02:06 AM
Goodmans AXIOM 301 sigurd Multi-Way 8 10th April 2007 07:33 PM
Goodmans 201 KevinTams Full Range 9 28th August 2005 07:35 PM
Goodmans Woofer Tomv Multi-Way 6 6th June 2005 07:23 PM
FS: Goodmans Axiom 80, pr, NOS LaLaLa Swap Meet 3 18th April 2005 07:11 AM


New To Site? Need Help?

All times are GMT. The time now is 09:34 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