Klpisch LaScalla/Lowering midrange output with a resister - 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 3rd June 2014, 08:49 PM   #1
diyAudio Member
 
Join Date: Apr 2014
Location: Eugene,Or
Default Klpisch LaScalla/Lowering midrange output with a resister

Hi, I have been reading about modifications to my klipsch LaScala speakers and came across a comment about: just put "a 15 ohm resistor in parallel with the driver" ... Does that mean between the positive and negative leads to the mid horn between the crossover and the driver?Or does it mean to put the resister in line on the positive lead to the mid horn ? thank you for your time and tolerance.This is supposed to lower the midrange by about 3 db. I am also building a bass mod cabinet for them to sit on.
  Reply With Quote
Old 3rd June 2014, 08:55 PM   #2
diyAudio Member
 
Join Date: Dec 2010
Location: Amesbury, MA
IMHO the midrange is the best part of the LaScala. The low end only goes down to 50Hz which is what is lacking. Which is why the CornScala was invented.

Cornscala? | Critesspeakers.com


Parallel means put the resistor across the + and - of the driver. But I would think that would do the opposite of what you want.

Last edited by famousmockingbird; 3rd June 2014 at 09:04 PM.
  Reply With Quote
Old 3rd June 2014, 09:06 PM   #3
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by ScottLowe View Post
Hi, I have been reading about modifications to my klipsch LaScala speakers and came across a comment about: just put "a 15 ohm resistor in parallel with the driver" ... Does that mean between the positive and negative leads to the mid horn between the crossover and the driver?Or does it mean to put the resister in line on the positive lead to the mid horn ? thank you for your time and tolerance.This is supposed to lower the midrange by about 3 db. I am also building a bass mod cabinet for them to sit on.
You would do yourself a favor by telling us which crossover you have and also posting a schematic. As I recall most of those crossovers used an autoformer on the midrange. Using a diiferent tap would be the most straightforward method (this may also require adding a resistor). Again, tell us which model crossover and provide a schematic (they are posted on the Klipsch forum)
  Reply With Quote
Old 4th June 2014, 01:19 AM   #4
diyAudio Member
 
Join Date: Apr 2014
Location: Eugene,Or
HI,Famousmockingbird and With Tarragon I have a pair of 1971 LaScala with the type A A crossover and I used a cap set two years ago from Bob Crites .I am computer challenged and don't know how to down load and then reload the schematics .But i would like to try to turn down the mid horn 3 db just to see.I did alot of room acoustic work.I have too small a room for the LaScala but they sound better than two weeks ago.... soooo yes I agree the midrange is great but i want to try less,I have heard it said in some smaller rooms this "15 ohm resister in parallel"can be a dramatic improvement [with the right room response]I hope I can try this out.Thank you Scott In eugene oregon man the garden is taking off
  Reply With Quote
Old 4th June 2014, 04:04 AM   #5
GM is offline GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
No experience with these, but here's a thread with some info about how to do it: La Scala - Crossover Mod to Take Squawker Down -3dB - AudioKarma.org Home Audio Stereo Discussion Forums

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 4th June 2014, 08:55 AM   #6
LTD Co is offline LTD Co  United States
Banned
 
Join Date: May 2014
Location: California
there is T2A auto-trans on the XOver. just lower the mid-range tap and there would be no need to a resistor.
  Reply With Quote
Old 4th June 2014, 06:30 PM   #7
diyAudio Member
 
Join Date: Jun 2013
some of the old klipsch have horrible horns
Klipsch loudspeaker corner
  Reply With Quote
Old 5th June 2014, 11:42 PM   #8
diyAudio Member
 
Join Date: Apr 2014
Location: Eugene,Or
Yes, LTD Co I don,t know what you mean by "just lower the mid-range tap". Could that be shown in a picture or would that require equipment to measure frequency? Thank you so much for your response .Scott in Eugene Oregon
  Reply With Quote
Old 6th June 2014, 12:53 AM   #9
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by multitask View Post
some of the old klipsch have horrible horns
Klipsch loudspeaker corner
If you are saying that technolgy has improved in the past 40 years, then yes you are probably correct
  Reply With Quote
Old 6th June 2014, 12:56 AM   #10
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by ScottLowe View Post
Yes, LTD Co I don,t know what you mean by "just lower the mid-range tap". Could that be shown in a picture or would that require equipment to measure frequency? Thank you so much for your response .Scott in Eugene Oregon
.
There are a series of outputs on the autoformer. Just move the connection. Ask over at the Klipsch forum.
It is not difficult
  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
Lowering the output impdance of the TSSA V1.6 sonnya SITO Audio 3 18th June 2014 07:07 PM
Roll off midrange acoustically by lowering box volume Cousin Billy Multi-Way 14 19th December 2008 05:32 PM
Lowering voltage output of transformer TGRANT Tubes / Valves 8 17th January 2007 10:29 AM
Lowering the output impedence of this dac's output georgehifi Digital Source 14 31st October 2006 07:05 PM
Lowering clock output audiokid25 Digital Source 4 6th June 2005 07:08 PM


New To Site? Need Help?

All times are GMT. The time now is 05:27 AM.


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