World-Designs-Forum  

Go Back   World-Designs-Forum > DIY Projects > Loudspeakers
Register FAQ Members List Calendar Gallery Today's Posts Mark Forums Read

Loudspeakers Your DIY Speaker designs

Reply
 
Thread Tools Display Modes
  #1  
Old 20th October 2006, 11:35 PM
KennyK's Avatar
KennyK KennyK is offline
Senior Member
 
Join Date: Dec 2005
Location: Glasgow
Posts: 191
Default Repairing MF MC-2 - low output on one tweeter

I've recently acquired a pair of Musical Fidelity MC-2 Loudspeakers, with the intention to put them in my dining room system. One of the tweeters seems to be working better than the other. I want to have a go at reparing these, but as it's my first attempt at tweaking loudspeakers, I'm not sure where to start.

is it likely to be the tweeter that has started to fail, or something in the crossover?
if it's the tweeter, I'm not sure where to start in my search for a suitable replacement, so any help in selecting something approximately similar would be appreciated. In fact any tips as to how to go about getting these back to working condition relatively cheaply would be good. I'm not fussed about them sounding exactly like a factory fresh pair of MC-2s. both sounding the same and approximately right would be enough.

the Bass on these seems to be quite good. it's just a shame that the treble on one is a bit quiet - the tweeter does seem to be working but low output. I've not had a proper look inside yet, but it's 4 screws to whip the woofer out to get access to the innards.
Reply With Quote
  #2  
Old 20th October 2006, 11:40 PM
pre65's Avatar
pre65 pre65 is offline
Senior Member
 
Join Date: Jan 2006
Location: Ashen- Essex/Suffolk bord
Posts: 4,538
Default Re: Repairing MF MC-2 - low output on one tweeter

Hi-not a bad speaker in its day (for the price).

i bought a pair new in 1987 and they are still in use in my study system.They were on QED tristands and were only replaced by KLS3.

I wish you luck in sorting them out.


Philip
__________________
Philip.

Everything in this post is my honest opinion based on what i thought I knew at that very moment in time.
Reply With Quote
  #3  
Old 20th October 2006, 11:51 PM
KennyK's Avatar
KennyK KennyK is offline
Senior Member
 
Join Date: Dec 2005
Location: Glasgow
Posts: 191
Default Re: Repairing MF MC-2 - low output on one tweeter

thanks.

I paid around £40 for them so even in their current state I'm pleased with them. though the missus is a bit unsure about me putting them up on wall brackets in the dining room for background music...

hopefully I'll learn something on the way too...
Reply With Quote
  #4  
Old 20th October 2006, 11:56 PM
pre65's Avatar
pre65 pre65 is offline
Senior Member
 
Join Date: Jan 2006
Location: Ashen- Essex/Suffolk bord
Posts: 4,538
Default Re: Repairing MF MC-2 - low output on one tweeter

Hi-the MC-2 relates to the second design by Martin Colloms for MF.

to be honest i think £40 is a lot for old speakers that dont work properly but youve done it now.


Philip
__________________
Philip.

Everything in this post is my honest opinion based on what i thought I knew at that very moment in time.
Reply With Quote
  #5  
Old 21st October 2006, 08:50 AM
KennyK's Avatar
KennyK KennyK is offline
Senior Member
 
Join Date: Dec 2005
Location: Glasgow
Posts: 191
Default Re: Repairing MF MC-2 - low output on one tweeter

you're probably right. I thought they were working, but I did get them bundled with an amp for a total of £75 delivered, so maybe I just paid over the odds for a Rotel Amp...

thanks for the info, I didn't know what the MC denoted. might come in useful.
Reply With Quote
  #6  
Old 21st October 2006, 02:44 PM
petercom's Avatar
petercom petercom is offline
Senior Member
 
Join Date: Dec 2005
Location: Shenzhen, China
Posts: 1,256
Default Re: Repairing MF MC-2 - low output on one tweeter

Probably the easiest way to approach this is to swap the treble units over and see if the one which is 'quiet' remains the same. If the quiet treble stays with the speaker then the crossover is at fault.

If you let us know what the treble unit model number is we can perhaps help with a replacement if you need one.
Reply With Quote
  #7  
Old 19th May 2007, 11:03 PM
pre65's Avatar
pre65 pre65 is offline
Senior Member
 
Join Date: Jan 2006
Location: Ashen- Essex/Suffolk bord
Posts: 4,538
Default Re: Repairing MF MC-2 - low output on one tweeter

[quote=pre65;25059]Hi-the MC-2 relates to the second design by Martin Colloms for MF.
(Quote)

Hi Ian -as was said before.

Philip
__________________
Philip.

Everything in this post is my honest opinion based on what i thought I knew at that very moment in time.
Reply With Quote
  #8  
Old 20th May 2007, 09:44 AM
Ianm2 Ianm2 is offline
Senior Member
 
Join Date: Dec 2005
Location: lancs
Posts: 1,175
Default Re: Repairing MF MC-2 - low output on one tweeter

hi philip, you are probably right ,its just I know some were done by IAS that were also labelled MC, the reference I believe were all martin colloms, probably not at all bad for a cheapish speaker
Reply With Quote
Reply


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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Band-limiting a preamp output. The Shadow Amplifiers 18 13th December 2006 05:35 PM
KAT88 low output from right channel KTea88 WAD Problems 3 26th July 2006 10:35 AM
Fostex FT17H Tweeter acorn General 1 15th April 2006 03:10 PM
Phono II - Output Impedance? Lord. WAD General 2 15th March 2006 05:47 PM
5-20 Output Transformers pre65 Amplifiers 2 19th February 2006 11:33 AM


All times are GMT +1. The time now is 04:08 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright World Designs