A little help with resistors UK please..

RobWells · 14th September 2008, 05:51 PM

Hi all,

I'm an active guy usually but have just installed a pair of speakers in my car that really need the tweeters attenuated by ~2 - 4 dB.

Have found sites that calculate values for the L pad and give an idea of wattage needed, but am having trouble finding suppliers of resistors for xo's.

Probably me being stupid but where should I be looking ? Farnell seems expensive, maplins gave no results.

I've worked out values for a 4 ohm tweet and a 6 ohm as I'm not sure of my tweets exact impedance. I basically need to order various values and have a play.

Cheers,
Rob.

Graham Maynard · 14th September 2008, 07:08 PM

Hi Rob,

Forget the calculations, fit these between your crossover components and tweeter.

https://secure.wilmslow-audio.co.uk/...91ee41e503af8e

They do a matching knob and mounting tray too.

Cheers ......... Graham

RobWells · 14th September 2008, 07:27 PM

Hi Graham,

Trouble is they're for 8 ohm speakers - my tweeters are car speakers and I'm pretty sure they're 4 ohm.

Also the L pads would work out to around £20 delivered and all I need is a few resistors to play with....

Rob.

quickshift · 14th September 2008, 08:08 PM

http://www.cricklewoodelectronics.com

This lot do 5w and 10w wire wound resistors and have a good range of values to choose from.

RobWells · 16th September 2008, 04:54 PM

Thanks Quickshift,

I couldn't work out whether the ones from cricklewood were non inductive so ended up ordering some from here:

http://www.audio-components.co.uk/

Cheers,
Rob.

ShinOBIWAN · 16th September 2008, 07:41 PM

No difference between ceramics and non inductive, just more money IMO.

RobWells · 16th September 2008, 07:48 PM

Hi Ant,

Having never built a passive xo I just went with what I read here:

http://ldsg.snippets.org/appdx-er.php

Rob.

If it's wrong- well it's only cost a couple of pints more.....

14th September 2008, 05:51 PM	#1
RobWells diyAudio Member Join Date: Aug 2002 Location: UK	A little help with resistors UK please.. Hi all, I'm an active guy usually but have just installed a pair of speakers in my car that really need the tweeters attenuated by ~2 - 4 dB. Have found sites that calculate values for the L pad and give an idea of wattage needed, but am having trouble finding suppliers of resistors for xo's. Probably me being stupid but where should I be looking ? Farnell seems expensive, maplins gave no results. I've worked out values for a 4 ohm tweet and a 6 ohm as I'm not sure of my tweets exact impedance. I basically need to order various values and have a play. Cheers, Rob.

14th September 2008, 07:08 PM	#2
Graham Maynard diyAudio Member Join Date: Dec 2003 Location: UK	Hi Rob, Forget the calculations, fit these between your crossover components and tweeter. https://secure.wilmslow-audio.co.uk/...91ee41e503af8e They do a matching knob and mounting tray too. Cheers ......... Graham __________________ http://www.gmweb1.net/ and http://www.gmweb2.net/

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
5 Watt Resistors on Aleph 4 and Holco Resistors	nicharis	Pass Labs	16	8th February 2012 07:50 AM
FS: Resistors, LM3886, speaker terminal, variable resistors, switches and rectifiers	chris-man	Swap Meet	1	28th May 2009 11:47 AM
Ptc Resistors	Ziggy	Solid State	4	13th January 2009 01:31 AM
Inductive resistors for source resistors	bbakota2000	Pass Labs	12	25th March 2005 11:33 AM
Weird Resistors, anyone know anything about resistors	priscared	Parts	1	19th March 2004 11:59 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

14th September 2008, 07:27 PM	#3
RobWells diyAudio Member Join Date: Aug 2002 Location: UK	Hi Graham, Trouble is they're for 8 ohm speakers - my tweeters are car speakers and I'm pretty sure they're 4 ohm. Also the L pads would work out to around £20 delivered and all I need is a few resistors to play with.... Rob.

14th September 2008, 08:08 PM	#4
quickshift diyAudio Member Join Date: Jun 2005 Location: West London	http://www.cricklewoodelectronics.com This lot do 5w and 10w wire wound resistors and have a good range of values to choose from.

16th September 2008, 04:54 PM	#5
RobWells diyAudio Member Join Date: Aug 2002 Location: UK	Thanks Quickshift, I couldn't work out whether the ones from cricklewood were non inductive so ended up ordering some from here: http://www.audio-components.co.uk/ Cheers, Rob.

16th September 2008, 07:41 PM	#6
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	No difference between ceramics and non inductive, just more money IMO.

16th September 2008, 07:48 PM	#7
RobWells diyAudio Member Join Date: Aug 2002 Location: UK	Hi Ant, Having never built a passive xo I just went with what I read here: http://ldsg.snippets.org/appdx-er.php Rob. If it's wrong- well it's only cost a couple of pints more.....

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)