Neumann KH120 studio monitor power supply repair

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beatnik

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Oct 18, 2009
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Dorset, UK
Not sure how easy it would be to convert them to passive... surely a fun project but it's gonna be hard to find a dead stereo pair, and for cheap.

It would probably be worth to build an external power supply, all you need is a pair of unregulated rails about +/- 40V and a pair of regulated +/- 15V

At least the psu won't go up in smoke every time there is a fault in the amplifier
 

Tubetec

Well-known member
Joined
Nov 18, 2015
Messages
3,438
All to often you find the KH120 being sold as single orphaned working speaker ,although the seller wont tend to tell you the other blew up .

There is the K&H P110 the passive predecessor of the KH120 , might be a reasonable starting point for a passive crossover network design as the drive units are similar .
 

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