Horn Sub Jr. - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

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 1st October 2008, 10:45 AM   #1
Tomac is offline Tomac  Croatia
diyAudio Member
 
Join Date: Dec 2003
Location: Zagreb
Default Horn Sub Jr.

Greetings!
Due to redecorating my apartment, I'll be soon forced to place my speakers in corners of a room. Currently I have 3 way active sytem, all sealed w/ Linkwitz transform. I was thinking of going OB in bass before these changes, but since loudspeakers will be in corners I don't think it is a very good idea.
I know of various corner enclosures but they are mostly designed for fullrange or coaxial speakers.
I wanted to keep active 3 way approach, possibly a hornsub + OB for mids.
Does anyone have some experience with William Cowan Hornsub JR?
I thought of using it corner loaded, and crossed over to a mid at 150Hz. What's the quality of bass compared to sealed sub? I know they are quite different in approach.
Thanks in advance
  Reply With Quote
Old 1st October 2008, 11:50 AM   #2
MaVo is offline MaVo  Germany
diyAudio Member
 
Join Date: Jan 2006
I dont have experience with this sub, but William knows what he does and since the simulations and his measurements look good, i would build it if it fits my needs.

But getting to such a design isnt very complicated with hornresp and maybe you could have fun designing your own. This way, you could get exactly what you like. Also, tapped horns could be worth a closer look, their prime benefit being a flatter response in the same size as a normal horn.

As to the quality, i belief a properly implemented horn will sound better, due to its high frequency rolloff and higher efficiency, resulting in lower distortion. Additionally, horn loading does some nice things to the phase response. But it will be big, which is the tradeoff for the better performance
  Reply With Quote
Old 2nd October 2008, 05:29 AM   #3
diyAudio Member
 
cowanaudio's Avatar
 
Join Date: Jul 2004
Location: Canberra, Australia
G'day Tomac

I have a bit of experience with those little horns, and have received lots of emails from others who have built them too.

If you can corner load them and can live with the 40Hz lower cutoff, they work well. They have high sensitivity of around 105dB/W/M and are simple to build and move around. 100W RMS into one of these is probably more than enough output for most people. With your proposed 150Hz crossover a pair would work better. The pictures of mine show no bracing, but I would recommend it in all cases.

You asked for a comparison with sealed. Well, for a given driver at a given level within the passband of the horn, the horn will have orders of magnitude less distortion. As the level goes up, the sealed woofers will become unusable (and you'll only be feeding a few watts into the horn). The sealed boxes will go lower, though.

Others have had good success with the Eminence 15" Delta LF in this box.

Your OB will work best out from the corner, otherwise use lots of damping behind it.

Cheers

William Cowan
  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
Horn experts - Please help to determine optimal throat size for low-mid horn pk Multi-Way 9 19th August 2012 06:29 PM
Single Driver Horn Base Port from Frugal Horn EmergencyDpt Swap Meet 0 26th October 2008 01:24 AM
RCA MI-1425 with MI-1469 Horn, MI-1457 (W-horn) with RCA MI-? fieldcoil woofer thekop-bkk Swap Meet 0 26th September 2008 03:55 AM
looking for 6.5inch woofers suitable for a 30 - 35Hz horn... and a small horn too :P SkinnyBoy Multi-Way 24 13th February 2004 05:06 AM


New To Site? Need Help?

All times are GMT. The time now is 05:32 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