2-way large bookshelf design - 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 17th September 2004, 04:03 AM   #1
Nm2285 is offline Nm2285  United States
diyAudio Member
 
Join Date: Aug 2004
Location: Delaware
Default 2-way large bookshelf design

I recently designed and built a 2-way bookshelf speaker project. I'm thrilled with the results. They've replace my NHT SB2s. Their overall clarity, detail, and soundstage have thoroughly impressed me. Their one weakness is a bit of bass deficiency (+/- 3dB at 67 Hz). I had a sub going into the project, so this didn't bother me too much. Here's a brief design description in case it inspires anyone:

Drivers: Peerless 850122
Vifa XT19
Approximate volume of enclosure: .52 cu ft.
External Dim of enclosure: 9.5"x10.5"x14"
Material: 3/4" MDF

Crossover: 4th Order Linkwitz-Riley at 2700 Hz (this avoids distortion in the Vifa and a bit of unevenness in the Peerless).

I offset the center of the tweeter 1 inch from the center of the midrange. One brace (3x8) was attached to the back and sides. The box was sealed using polyurethane glue. The drivers were flush mounted. Most materials were purchased from Madisound; they were great to deal with.

Total cost was about $350.

I also made my own stands for them using some of the leftover MDF and PVC pipe. I connected the bases across the pipe using 3/8" all-thread rod. They are sand filled, attached to the PVC with polyurethane glue, and caulked to ensure a tight seal.

They're mated with a HK DVD101 and a NAD C370. I'm very satisfied with the results of my first project.
  Reply With Quote
Old 17th September 2004, 04:11 AM   #2
Grahamt is offline Grahamt  Canada
diyAudio Member
 
Grahamt's Avatar
 
Join Date: Mar 2004
Location: U of Waterloo
pics please

Glad you are thrilled with the results.
Any BSC, impedance correction, etc I am interested in any details. I cant afford to do your project but the details may help me with my own.
  Reply With Quote
Old 17th September 2004, 08:11 AM   #3
diyAudio Member
 
Join Date: Jan 2002
Location: Wellington, New Zealand
If you are willing...

I would appreciate details on the crossover you used. I presume a vented box? If so - what was your tuning freq.

Thanks,
David.
  Reply With Quote
Old 18th September 2004, 08:06 PM   #4
Nm2285 is offline Nm2285  United States
diyAudio Member
 
Join Date: Aug 2004
Location: Delaware
I actually used a sealed enclosure (thus the reason for the lack of bass). I wasn't worried about bass response and the ideal port would have been quite large, so I bypassed it.

I'll post details in a day or two...
  Reply With Quote
Old 21st September 2004, 02:56 AM   #5
Nm2285 is offline Nm2285  United States
diyAudio Member
 
Join Date: Aug 2004
Location: Delaware
Crossover is attached.
Attached Images
File Type: gif crossover for vifa xt19 and peerless 850122.gif (6.8 KB, 196 views)
  Reply With Quote
Old 21st September 2004, 03:38 AM   #6
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
pic's?
  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
Fostex fe167e bookshelf design nacho1966 Full Range 23 23rd July 2014 08:11 PM
Large Bookshelf/Monitors Big Kev ! Multi-Way 1 19th May 2009 05:24 AM
Hi-End Sealed MTM Bookshelf Design? treytexag Multi-Way 35 15th July 2008 07:34 PM
Vifa P17SJ and Vifa D27TG Large Bookshelf MTM rwo Multi-Way 7 24th February 2008 04:47 PM
bookshelf design around foster ribbon aleexman Planars & Exotics 0 19th December 2007 04:06 PM


New To Site? Need Help?

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