M&K VX-7 repair question - diyAudio
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Old 16th June 2008, 06:44 PM   #1
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Default M&K VX-7 repair question

I am in the process of repairing a M&K VX-7 subwoofer that I inherited from a friend. I repaired the speaker by replacing the surround. (Went well; my first such repair) But I found out the the amp is fried. From my research I've determined that the amp for this sub is (was) 50 Watts.

I would like to use this 70 Watt amp:


The problem is that the speaker is a 2-ohm unit. The amp is rated for a 4-ohm load. Can I use this amp as-is? Or, should I put a 2-ohm resistor in series?
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Old 17th June 2008, 07:04 PM   #2
Mikey p is offline Mikey p  Canada
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Are you sure it's 2 ohm?
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Old 17th June 2008, 08:05 PM   #3
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The speaker magnet has a sticker on it that says it's 2ohm, and I measured 2.5ohm with my DMM.
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Old 18th June 2008, 11:38 AM   #4
JohnL is offline JohnL  United States
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Location: Tampa, FL
If your not in a rush, you might want to watch ebay for the correct amp. I've seen a ton of M&K parts on there since they closed their doors last year.
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Old 19th June 2008, 06:39 PM   #5
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Default Request rephrased

Perhaps I should try a different tack on this request. Assuming that I am going to re-amp this sub with a 70 watt, 4 ohm capable amp,

Do I:

1) See how (of if) the amp can handle a 2 ohm load
2) Place a 2 ohm resistor in series with the speaker for safety

Won't anyone take a stab at this? C'mon, this must be child's play for some of you...
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Old 2nd July 2008, 01:23 PM   #6
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Smile How 'bout this?

Steve at apexjr may have what you need,and is a site sponsor


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