Janis Interphase 1A Crossover/Subwoofer Amp Service

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pittsburgh Joe

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Janis Interphase 1A Crossover/Subwoofer Amp Service
« on: 21 Aug 2020, 09:59 pm »
I have a pair of Janis W-1 subwoofers made in the Bronx by John Marovskis in the 70s. Each has an Interphase 1A combination amp, crossover and phase control. Searching to see if anyone in Audio Circle can recommend someone to service them as they seem to have stopped functioning. (Not totally unexpected for equipment of this vintage.) Perhaps as an alternative you can recommend replacement electronics of a more recent vintage.  Thanks.

FullRangeMan

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  • To whom more was given more will be required.
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Re: Janis Interphase 1A Crossover/Subwoofer Amp Service
« Reply #1 on: 22 Aug 2020, 01:59 am »
Welcome  :thumb:
Do you need a new woofer or a new amp?
« Last Edit: 22 Aug 2020, 05:06 am by FullRangeMan »

Phil A

Re: Janis Interphase 1A Crossover/Subwoofer Amp Service
« Reply #2 on: 22 Aug 2020, 12:56 pm »
Welcome!

Phil A

Re: Janis Interphase 1A Crossover/Subwoofer Amp Service
« Reply #3 on: 22 Aug 2020, 12:58 pm »
You can start here to see if there is something available and perhaps you can get additional info - https://www.madisoundspeakerstore.com/restore-vintage-speakers

Doublej

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Re: Janis Interphase 1A Crossover/Subwoofer Amp Service
« Reply #4 on: 22 Aug 2020, 06:08 pm »
It does not appear that there is anything complicated with the Interpahse units so a good audio repair technician should be able to service them.

What has led you to conclude that it is both Interphase units that are bad?