A Beovox MS150 Project

211 replies
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While delaying the completion of the Beomaster 6000 project (I have been recapping some other amplifiers before diving into the volume motor repair), I came across these Beovox MS150 speakers that are in need of restoration. The MS150 speakers have been on my radar for a while now but this was my first chance to get a pair and they were within driving distance (for me) to pick up...so no shipping. 

As you can see, the 8 inch and 10 inch drivers need new foam surrounds. That is to be expected. I haven't opened them up to check the crossovers yet but I am figuring I will be replacing those capacitors as well.  The real issue I will have is the top grill covers. Both speakers are missing those. Even without them I had to buy these speakers. If anyone has any spare top grill covers please let me know. 

I am also trying to decide the best place to order surrounds. I have bought surrounds off Ebay for several of my CX100, CX50, S55, S120.2 and RL140 speakers.  All of those refoam projects came out great. I imagine the same surrounds for the S120.2 8 inch driver should also work for the MS150. I will see if that company also supplies the 10 inch surrounds. 

In any case, parts will have to be ordered so it will be a couple weeks before I can really get started.  

Wonderful speakers, the top covers are not too difficult to make, the challenge is to find the aluminum profile, I would try with a 3 Mm. black plexi (perspex) route to fit the alu profile, glue front to top angle, glue fabric and attach aluminum profile.

BTW where do you buy the surrounds ?

Location: Mexico city

Retired
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Restored various 1960-70 items
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Restored Jukebox Wurlitzer 1050

I bought my surrounds for my other Beovox speakers off from Good HiFi.  So far their surrounds have worked good for me.

sonavor wrote:

I bought my surrounds for my other Beovox speakers off from Good HiFi.  So far their surrounds have worked good for me.

I tried with Good HiFi for 6.5" to RL 140, but he offered me totally wrong dimensions, lately I was mailing with

Location: Mexico city

Retired
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050

Nice find! Can't believe they use the same Phase links as are on my S-120's - they look tiny on these! Never heard a pair, but the wife would not allow them anywhere near the house due to size alone!

 

BTW have you got the stands?

Hi Soren is it not the other way round? I am sure Goodhifi is the better supplier - I got my RL140 surrounds off them including dustcaps and while I have not yet fitted they seem absolutely fine when offered up!

I have returned a couple of (quite different !) MS150 surrounds sold as a guaranteed fit to Good-Hifi as can be
read somewhere in the archives.
A third pair came in with a pair of speakers for repairs and being more than 1cm too big inner diameter (and still
guaranteed to fit!) they were thrown out.
Only use Good-Hifi  if you have better luck than I.

Martin

I am surprised tbh. I am sure my s120 foams came from them, which were a good fit, and like said I have RL140 and forgot to mention penta foams that I have yet to do, but checked all carefully and they look pretty faithful to the originals!

The one thing that puts me off audiofriends is the lack of on line shop where you can see that they have a specific foam for a specific driver, not too keen on sending them dimensions and not knowing exactly what I am going to get back! Also they don't appear to sell dustcaps which obviously given some drivers is essential!

 

I must check out the archived forums and see what other peoples experiences are over the long term!

Step1 wrote:

Hi Soren is it not the other way round? I am sure Goodhifi is the better supplier - I got my RL140 surrounds off them including dustcaps and while I have not yet fitted they seem absolutely fine when offered up!

I have only had mailing contact with Good HiFi, I asked for 6.5" for 140s, he gave me an offer for a surround type about 15 Mm smaller OD than the original, I responded to him that they would be too small and never heard from him again, with Fred from AF I've had long discussions about speaker repair and constructions, Fred knows what he is doing, and wont sell you anything before he has the exact dimensions from you.

 

Location: Mexico city

Retired
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050

Step1 wrote:
The one thing that puts me off audiofriends is the lack of on line shop where you can see that they have a specific foam for a specific driver

AFs webshop is a mess, but if you go by dimensions you will find it there, Fred is aware of this and working on it. Just mail him speaker type, which driver, ID, OD and cone D, he will then find the right one.

Location: Mexico city

Retired
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050
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