Raal 70-10 blown

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ricardojoa

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Raal 70-10 blown
« on: 1 Aug 2019, 09:14 am »
 :cry:

Hi Rick.
I just find out that both of the raal tweeters  of the tempesta are blown.
Is there anyway to fix it without getting new drivers as these are quite expensive.
The tweeter channel are working as i tested with  acuton drivers.
Perhaps a new crossovet to work as a 2 way with accuton as mid-high and scanspeak woofer?
« Last Edit: 1 Aug 2019, 10:30 am by ricardojoa »

Rick Craig

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Re: Raal 70-10 blown
« Reply #1 on: 1 Aug 2019, 02:52 pm »
:cry:

Hi Rick.
I just find out that both of the raal tweeters  of the tempesta are blown.
Is there anyway to fix it without getting new drivers as these are quite expensive.
The tweeter channel are working as i tested with  acuton drivers.
Perhaps a new crossovet to work as a 2 way with accuton as mid-high and scanspeak woofer?

Sorry to hear that. Replacement ribbon elements are available and it's not difficult to do. Here's the video link. https://www.youtube.com/watch?v=bvylZF9eJOA

bajaed

Re: Raal 70-10 blown
« Reply #2 on: 1 Aug 2019, 07:08 pm »
Is it just a torn ribbon? I've had that repaired a few times, not a big deal. My local repair shop did it but it's not difficult.

Rick Craig

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Re: Raal 70-10 blown
« Reply #3 on: 1 Aug 2019, 09:43 pm »
I read your posts on the Audioholics forum. Always turn on your pre-amp first before turning on your amplifier. Do the reverse when turning off both units. You also mentioned that you had transferred the drivers to another cabinet. Was anything else changed in the process?

ricardojoa

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Re: Raal 70-10 blown
« Reply #4 on: 1 Aug 2019, 10:04 pm »
I read your posts on the Audioholics forum. Always turn on your pre-amp first before turning on your amplifier. Do the reverse when turning off both units. You also mentioned that you had transferred the drivers to another cabinet. Was anything else changed in the process?

Thank you Rick.
Yes, i believe the blown was caused by the pop of them preamp.
Nothing is changed in the crossover except i need to lengthen the wires for the drives.
So is likely the film of ribbon that is blown and not the transformers?

Rick Craig

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Re: Raal 70-10 blown
« Reply #5 on: 1 Aug 2019, 10:14 pm »
Thank you Rick.
Yes, i believe the blown was caused by the pop of them preamp.
Nothing is changed in the crossover except i need to lengthen the wires for the drives.
So is likely the film of ribbon that is blown and not the transformers?

I've never had a transformer damaged in a ribbon tweeter. Free advice is not always good advice.

ricardojoa

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Re: Raal 70-10 blown
« Reply #6 on: 1 Aug 2019, 11:07 pm »
I've never had a transformer damaged in a ribbon tweeter. Free advice is not always good advice.

Good thing the replacement ribbon are alot cheaper than the whole unit.

ricardojoa

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Re: Raal 70-10 blown
« Reply #7 on: 2 Aug 2019, 11:52 am »
Hi Rick,
Could you tell me the polarity of the wires from the crossover to the drivers? The wire used seems to be the same color with one of them having a small white  strip to distinguish between them.
Thank you

Rick Craig

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Re: Raal 70-10 blown
« Reply #8 on: 2 Aug 2019, 05:18 pm »
Hi Rick,
Could you tell me the polarity of the wires from the crossover to the drivers? The wire used seems to be the same color with one of them having a small white  strip to distinguish between them.
Thank you

The white striped wire is  the (-) / negative connection.

ricardojoa

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Re: Raal 70-10 blown
« Reply #9 on: 2 Aug 2019, 06:25 pm »
The white striped wire is  the (-) / negative connection.

Thank you Rick, much appreciate!