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speaker protection [message #22998]

Fri, 29 May 2015 12:38

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

Was wondering if there is any kind of fuse or overload that could be installed inline with speaker to protect them from power surges. With all these 3-15's cabinets I now have, I have a lot of money tied up in big speakers. With the age of the these Kustom amps, I worry about something terribly going wrong possibly. Anyone got any ideas?

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Re: speaker protection [message #23014 is a reply to message #22998]

Sun, 31 May 2015 06:40

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

Yes, a simple 5 amp fast blow type fuse will handle 200 watts before it opens .
Get a couple of inline twist on cap fuse holders for AGC type fuses and have at it!

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Re: speaker protection [message #23015 is a reply to message #22998]

Sun, 31 May 2015 06:45

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

Yes, a simple 5 amp fast blow type fuse will handle 200 watts before it opens .
Get a couple of inline twist on cap fuse holders for AGC type fuses and have at it!
If you have more bucks sitting in your wallet and want protection for your speakers in case the amps output section blows than Parts express stock a unit that has two circuits that can handle 150 watts and will also disconnect the speakers should DC voltage show up like when the or if the output stage goes south!

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Re: speaker protection [message #23018 is a reply to message #22998]

Sun, 31 May 2015 10:51

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

Thanks.......sounds like a good investment. Since the 3-15's are wired in parallel, do I need only one fuse at the input jack on the speaker to protect all three speakers or do I need one on each speaker?

[Updated on: Sun, 31 May 2015 11:14]

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Re: speaker protection [message #23022 is a reply to message #22998]

Mon, 01 June 2015 12:41

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

Hey Stevem......still waiting for a reply about the wiring of the fuse with the speakers. Wanting to send an order to Parts Express today if possible. Thanks

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Re: speaker protection [message #23023 is a reply to message #22998]

Tue, 02 June 2015 06:13

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

Yes you fuse or protect at the input to the pair.

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Re: speaker protection [message #23024 is a reply to message #22998]

Tue, 02 June 2015 07:35

Iowa Boy
Messages: 767
Registered: June 2014

Senior Member

Thanks buddy.

Leaving this morning for Milwaukee to buy a K-250 with all the effects....in blue and a set a JBL speaker cabinets. The amp has issues and is being sold cheap. I will be contacting you for help in getting it back together again.

What do you thing about adding 2 round tweeters to a 3-15's cabinet? Since it was originally a bass cabinet and I have turned the speaker board upside down so the bass ports are on the bottom, was thinking of selling it with a K-200 head that has the reverb and tremolo on one side and just regular functions on the other side. By adding a crossover with a switch, thought that the cabinet would be more versatile and could be used for either bass or guitar. The chrome tweeters are about the same size as the bass ports so was thinking it would look pretty cool with them between the top and middle speakers.

[Updated on: Tue, 02 June 2015 07:38]

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Re: speaker protection [message #23025 is a reply to message #22998]

Tue, 02 June 2015 07:50

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

I am really not fond of the normall 4-10 cabs with tweeters for Bass as I find that the cross over point leaves a hole in the sound that I hate, I preferred to use for instance like what I have in many of my 2-15 cabs, a EVM b and a EVM L or in the 3-15 cabs moded to 2-15s and 2 -10" drivers.

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