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hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26098]

Wed, 07 January 2004 09:44

Alan Watkins
Messages: 5
Registered: May 2009

Esquire

these are old speakers,circa 1978. The tweeter is 70mm.
any help appreciated

the bass drivers is a b200 sp1039 kef unit
but i dont know who made the tweeters
thanks
Alan

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26099 is a reply to message #26098]

Tue, 20 January 2004 17:32

Wayne Parham
Messages: 18748
Registered: January 2001

Illuminati (33rd Degree)

I did some looking and couldn't find them. 'Spose you might post or E-Mail a photo? Be sure and include any other information you might have, such as physical dimensions. I think I can help you out with that info.

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26100 is a reply to message #26099]

Wed, 21 January 2004 01:46

Alan Watkins
Messages: 5
Registered: May 2009

Esquire

hi thanks for the reply - heres a pic of the tweeters

they are 70mm in diammeter
http://homepage.ntlworld.com/quad303/images/tweeter.jpg

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26101 is a reply to message #26100]

Wed, 21 January 2004 02:24

Wayne Parham
Messages: 18748
Registered: January 2001

Illuminati (33rd Degree)

You're saying that the magnet is 70mm diameter, yes? I expect the dome is about 25mm across, yes?

Can you show a photo of the back? Also, what does the tweeter mount on to?

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26102 is a reply to message #26101]

Wed, 21 January 2004 10:15

Alan Watkins
Messages: 5
Registered: May 2009

Esquire

hi thansk for the reply, yes the dome is 25mm and the magnet 70mm.
heres a pic of the rear of the unit and the 'mounting plate'

theres a 4 digit number, 7810 I think. But it seems to be a serial number rather than a code number,because the other good tweeter has a different number stamped on it.

cheers

alan

http://homepage.ntlworld.com/quad303/images/tweeter2.jpg

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26103 is a reply to message #26102]

Wed, 21 January 2004 18:11

Wayne Parham
Messages: 18748
Registered: January 2001

Illuminati (33rd Degree)

What do you think about substituting another 1" dome tweeter for this one? I think I would probably replace both tweeters from both speakers if a stereo pair, but I think you might find this to be an acceptable solution. I'd probably keep the original units if I swapped them out, just in case.

Also, have you checked with local speaker repair shops to see if they could just replace the diaphragm? Is there a local repair shop in your area?

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26104 is a reply to message #26103]

Thu, 05 February 2004 13:52

Alan Watkins
Messages: 5
Registered: May 2009

Esquire

thanks again for the info. I got a set of Seas SEAS 25TFFc (soft dome)tweeters, which are nice. I dont know if its me but I did prefer the original units. I have since found out that the tweeter is made by Audax, HD13D34 part no.

I have contacted the only place I can find the part listed in Denmark to see if they can ship to me. Im not sure if theres a repair shop in my area, but thats another option for me.

cheers

Alan

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26105 is a reply to message #26104]

Thu, 05 February 2004 17:28

Wayne Parham
Messages: 18748
Registered: January 2001

Illuminati (33rd Degree)

Sounds like you did your homework. That's good information for the archives, so thanks for the follow-up post.

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26134 is a reply to message #26105]

Sat, 19 June 2004 22:23

Fred
Messages: 5
Registered: May 2009

Esquire

What a joke! I'm looking for exactly the same thing!!!
I have a pair of MA 4 that I bought in '77 and had my grandkids do some finger pokin' while I forgot that the covers were off!!!

Anyway,,, just searching the internet and I come across this; what a godsend... thanks guys (and girls)

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Re: hi -anyone know what tweeters were used in the monitor audio MA4 speakers [message #26259 is a reply to message #26105]

Mon, 14 March 2005 13:49

Peter McCabe
Messages: 3
Registered: May 2009

Esquire

Tweeter was an Isophon (German) modified with damping material within the dome... giving it it's distinctive yellow colour. I used to own a pair back in the 70's. Believe me MA has not improved much on them (in terms of musical naturalness) since then.

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