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Whats a transformer look like in a subwoofer?

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What is the output voltage of the mains transformer for the Onkyo SKW 770 Subwoofer amplifier? I need the specs so I can have a custom replacement toroidal transformer made. Thank you kindly in...


It would seem that a call or email to the mfr, should be your first move.
Are you certain that the transformer is at fault?
These normally outlive most everything else-

Mar 03, 2015 | Onkyo Audio Players & Recorders

1 Answer

How to fix a busted transformer of a subwoofer?


if the transformer is busted or leaking the only alternative is to replace the transformer with the same voltage(compatible).once damaged only the manufacturer/or certified tech should replace the unit.

Oct 15, 2014 | Audio Players & Recorders

1 Answer

Model swa 1801 Fuse 240V 4A burned out ! I replaced it but still get no power (any led stay off) What can it be ?


check for integrity of the main amp and the torroidal transformer.

here is a guide , how to check for transistor

if there is a continuity on the primary terminal of the transformer.

Have a tech to guide you , should you need to DIY.

Sep 17, 2011 | Mackie SWA1801 Subwoofer

2 Answers

Got a cerwin vega cls 12s keeps blowing fuses. It has been well kept and all the connections are in the right place. It pop's before the light can come on. How do I fix, radio shack just down the road.


Hi,
by the sounds of it the internal transformer could be duff. You need to take readings from the transformer using a multimeter to check correct voltages are coming out of the transformer to their destinations. I would also chek the capacitors and other components on the chain pre and post transformer to make sure none of them are damaged too.
IF YOU ARE NOT EXPERIENCED WITH MAINS ELECTRONICS DO NOT ATTEMPT THIS YOURSELF!!!!

Jan 07, 2011 | Cerwin Vega LW10 Subwoofer

1 Answer

MTX Lolita Sub amp defective power transformer (open primary) What's the transformer voltage?


Without Knowing the Output Chip or transistor Numbers, I don't know but Most 100 Watt anps use 60 to 70 Volt Centertap Sacondarys. Also if You Take the Cover off The Transformer you will find a Thermal Fuse in the Primary. I have bypassed the Thermal Fuse and went with a external fuse, Go for it.

Oct 07, 2010 | MTX LOLITA 8" 100 WATT LOW PROFILE...

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Have the KLH ASW10-120 Powered Subwoofer and it is blowing fuses


If it stays on for 3 seconds then it probally is not the transformer. However it may very well be the power amp no way to tell untill we operate. Call Pro Line Music 215-736-8055

Dec 11, 2009 | KLH ASW10-120 Subwoofer

1 Answer

Subwoofer unit not powering on


Your sub woofer's transformer is probably damaged...You can check for this using a multimeter..Also check for any open circuits btween the transformer and the power suply..Most likely its the transformer itself check this first..

Oct 30, 2007 | Audio Players & Recorders

2 Answers

Th-R1 no pwoer to subwoofer - transformer u/s?


my power goes to the subwoofer and the little green light comes on for just a second and the you hear a click sound and the subwoofer power goes out. I have the JVC DVD Digital Cinema System TH-C90. Can you please help???

Oct 14, 2007 | Audio Players & Recorders

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