Adding a woofer into a Pensil enclosure? FAST project with active crossovers - diyAudio
Go Back   Home > Forums > Commercial Sector > Manufacturers > Markaudio

Markaudio Designers and builders of audiophile grade drivers

Reply
 
Thread Tools Search this Thread
Old 10th October 2011, 06:14 PM   #1
diyAudio Member
 
Join Date: Mar 2010
Default Adding a woofer into a Pensil enclosure? FAST project with active crossovers

Would it be possible to add in a mid woofer like a CSS SDX7 or a EL166 to a Pensil enclosure?

I've been experimenting with an ESP Linkwitz Riley active crossover at 300Hz with my Pensil 10.2 handling the higher frequencies with my KT88 SET and a TA2020 digital amp for the bottom frequencies thro an old KEF Cresta 2 bookshelves. I quite like what I hear with the bass reinforcement but will shift the XO frequencies to around 150-200Hz to make use of the Alpair 10.2's excellent mids.

Now what is bothering me is the extra 2 sets of speakers that does not integrate well into the living room and the domestic controller.

Edwin
  Reply With Quote
Old 10th October 2011, 08:03 PM   #2
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
You are best to start with an enclosure specific to the application.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 10th October 2011, 08:13 PM   #3
diyAudio Member
 
Join Date: Mar 2010
no chance at all to mod the pensils? i was hoping if it would be an easy add on as space is limited around here.
  Reply With Quote
Old 10th October 2011, 08:51 PM   #4
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Trying to reuse the Pensil box would be non-optimal, but could be done if you have a removable back (and left out the holey brace).

You would need to partition of a smallish enclosure for the A10.2 -- i'd suggust about 10 litres. Then modify what is left to accomodate the woofer. SDX7 works nicely in 14-17 litres sealed.

Where you can put a partition is limited to just under the A10, leaving about 20 litres for the A10 and 46 litre for the bass driver.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 11th October 2011, 02:49 AM   #5
diyAudio Member
 
Join Date: Mar 2010
Thanks Dave! I've built the pensil with a removable back and without the holey brace.

Should I put the SDX7 front firing or side firing like the Tysens? I guess I'll have to cover the Pensil port from the inside.

Can't wait to place an order for the SDX7
  Reply With Quote
Old 11th October 2011, 03:11 AM   #6
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
You will need to decrease the volume of at least the woofer chamber, even if you get 2 per side.

I'd side mount them.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 11th October 2011, 03:36 AM   #7
diyAudio Member
 
Join Date: Mar 2010
Yah will need to half the volume for around 17L

How about the EL166 compared to the SDX7. Cost a third of the SDX7. Both are different in construction though.
  Reply With Quote
Old 11th October 2011, 04:13 AM   #8
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
EL166 is a good woofer, especially of price is taken into consideration. I think the SDX7 is better.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 11th October 2011, 05:27 AM   #9
diyAudio Member
 
Join Date: Mar 2010
Thanks Dave. I'll sketch up something tonight and post up for comments.
  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
Markaudio fullrange + Woofer 6 (FAST) Crossblade Markaudio 22 9th September 2011 12:05 PM
Cutting plans for Pensil 12 and Super Pensil zman01 Markaudio 3 24th March 2011 05:48 AM
Driver/enclosure to complement Alpair 10.2 FR Pensil in a FAST system? southernoise Markaudio 24 7th February 2011 02:04 PM
Fast 6.5" woofer advise claudio Multi-Way 10 3rd April 2002 08:13 PM


New To Site? Need Help?

All times are GMT. The time now is 12:31 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