Drive replacement : Westra Xw-165-1394 in Mission 70 MK II ? - diyAudio
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Old 26th February 2010, 12:12 PM   #1
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Default Drive replacement : Westra Xw-165-1394 in Mission 70 MK II ?

Hi, I bough some old Mission 70 MK II speakers off ebay which turned out to be duds (either blow drives or cheap replacements). I got a good refund off the seller (I think they were duped to ), so have two Mission 70 MK II cabinets and would like to put some drives in them.

The volume is ~14 litres and they are sealed.
Mission700 - nmt-scripts - Project Hosting on Google Code

LF drive : Mission 70 s
HF drive : Vifa D19 TD-08
Outer dimension: hwd 350x210x210 mm
(this is different from the original 380x210x210 I saw on the web)

Is there any sensible way to replace all drives and crossovers and get something that is worth the outlay?

A chap in ebay is selling Westra Xw-165-13946.5" ( 200443249831 )
He says"They will work fine in most small/medium size cabinets, with or without port"

Anyay, I checked a thread here that had the specs, and a 30 litre box was recommended.

From A Pair of Westra XW-165-1394..

My original plan was to get some cheap bookshelves that might get some "abuse" at a weekend long music festival (think running over over an hour at highish volumes in a chalet!), but I may want to keep to listen to properly.
Or would it be better to try and score another 2nd pair, or something from a cheap hi-fi vendor (richer sounds in UK)
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Old 13th May 2010, 12:41 AM   #2
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This is the tweeter that it uses and here is the x-over too.

There is no x-over on the woofer. It just rolls of naturally at high end.

Hope this helps.
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Old 3rd March 2011, 03:48 PM   #3
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Join Date: Jul 2005
Location: D-55629 Schwarzerden
Originally Posted by mjatabor View Post
This is the tweeter that it uses and here is the x-over too.

There is no x-over on the woofer. It just rolls of naturally at high end.
Hope this helps.
Today I get a pair of this model for service. In my devices are a 6db lowpass (ferrite inductor) for the bass midrange transducer.
This chassis ("Mission 70 s") must be a Vifa, but a costom made version.
What was the type number of the associated industry standart transtucer from Vifa at those days ??
Thank you for your advices.

Arround 1997 I have get a great ammount of pieces for repair. In this aera I used for tweeter replace the K19F
H0225 - Seas K19F tweeter - Europe Audio
and for bass transducer replace the Gradient TPC175 RY-8
Tiefmitteltöner Gradient TPC 175 RY/8 bei Tieftöner (endet 02.03.11 16:14:16 MEZ)
Intertechnik from Kerpen, Germany was the supplier and distributor. In the meantime both types are no longer available.
Attached Files
File Type: pdf Gradient TPC175 RP-8.pdf (20.6 KB, 19 views)

Last edited by tiefbassuebertr; 3rd March 2011 at 04:03 PM.
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