Sub Woofer plugged into surge protector/power bar?

[Cuchulain]

My powered sub woofer has died. A friend says I should have had it plugged into a surge protector. Are there fuses in these? Wall socket is good; power indicator is not coming on. Is this likely a simple fix? Thanks in advance for any thoughts.

[ZLTFUL]

I can't even find a back panel view of the QS10.

Most likely, if there isn't one in a holder near the power plug, there isn't.
But sometimes, the fuse is locating inside the amp enclosure. If it is under warranty, sent it to Quest. If not, then not like you can do any more harm by pulling the amp out and seeing if there is one.

[Cuchulain]

It's 10 or 12 years old now I guess. I'm thinking now if it's 50 bucks or more to fix I could throw that into upgrading. I'll open it up and have a look.

[Cuchulain]

Yup. Fuse attached to the circuit board. And blown. Came out easily with a slot driver. I guess I'll get that surge protector while I'm at it. Thanks!

[ZLTFUL]

A surge protector is never a bad idea but don't skimp. Those cheap ones at Walmart do little to nothing to protect your gear.

Personally, I would pick up the 8 port Rocketfish Surge Center. It is a combination surge portector and noise filter.
That or something equivilant from Tripp Lite. Nice simple and inexpensive "entry level" power protection.

[Cuchulain]

I have a Monster Power HT protector (not sure of the model) that has a "safelite" for my set up but the sub is plugged into an adjacent wall and didn't really think of protecting it.

[ZLTFUL]

Depending on what actually caused the fuse to pop, it may or may not have been preventable with a surge protector.
Transient spikes can sometimes be "gentle" enough to get past the surge protection but enough to pop a fuse.

[Cuchulain]

Just put in a new fuse and it's not coming on. Some other damage has been caused.

[michael1947]

Yup, I've got about 3 old subs laying around all dead to the world waiting for me to fix them up...and it's probably not worth fixing old subs anyway. I just picked up a Polk 505, not the best rated but has a warranty and Amazon delivered it for $180.oo

[20hz]

I figured that .
If the driver is good you could get a ebay amp to drive it just get one with as much or more power than the dead one

Just put in a new fuse and it's not coming on. Some other damage has been caused.

[Speedskater]

My powered sub woofer has died. A friend says I should have had it plugged into a surge protector. Are there fuses in these? Wall socket is good; power indicator is not coming on. Is this likely a simple fix? Thanks in advance for any thoughts.

I think that your friend was wrong!
Sub-woofers are very robust units. If a surge took-out a sub, it would also toast lots of other equipment.

[Cuchulain]

Looks like i'm in the market for a new one.

[classic carl]

Parts Express has sub amps for sale on their site. You might be further ahead to buy a brand new sub though.

[Anthony Hinton]

I think that your friend was wrong!
Sub-woofers are very robust units. If a surge took-out a sub, it would also toast lots of other equipment.

His friend only suggested that it should be plugged into a surge protector, what is wrong about that?

[Speedskater]

I read it as: his friend said it failed because it was not plugged into a surge protector.

A whole house surge protector is the best way to go.

On page 30 of this white paper, Jim Brown writes about point of use surge protectors:

Power and Grounding for Audio and Video Systems
A White Paper for the Real World – International Version
Jim Brown
Audio Systems Group, Inc.

Shunt mode devices can cause damage to equipment if, during a surge event (lightning,
power transient) they conduct the surge to the ground conductor at some point other
than the building common point. When that happens, the ground conductor takes the
full weight of the surge, and thanks to resistance and inductance in the ground
conductor(s), the voltage rises to a very high value. If that ground conductor is connected to
other equipment (for example, by the shield of an audio or video cable), or even capacity-
coupled by means of an Ethernet cable connecting two pieces of equipment, it is
very likely that one or both pieces of equipment will fail destructively, because the
other equipment is bonded to ground at a different point in the building. In other
words, it is the difference in the voltage between the two pieces of interconnected
equipment that causes the failure. To avoid this failure mode, shunt mode suppressors
must be bonded to a ground only to the building common point.

http://www.audiosystemsgroup.com/SurgeXPowerGround.pdf

[timalan]

Dang -- I had the same thing happen last week. My Martin Logan Dynamo sub went Pop. Took out the fuse; it was fried. Replaced it (twice) and it fried again each time I turned it back on. Talked to Martin Logan and their guess was the power supply had gone bad, and at $170 to replace, not worth it for me, which is a shame, because it is an awesome sub.

Anyone have any other (Free/cheap) ideas I can try? would love to find a way to rejuvenate this sub.