Repair of a Bowers & Wilkins PV1 Sub-woofer

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This sub had sustained some physical damage and was blowing mains fuses on power up. This thing is 20 something Kilos so was a bit of a handful but we get it opened up and extract the boards. A shorted FET in the power factor correction circuitry of the power supply is the main problem. With this and all the low level capacitors replaced we can feel the bass again.
Doing this unit was more of a project. Packing and shipping these units is unrealistic and they are too time consuming to make economic sense unfortunately.

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Опубликовано:

5 июн 2024

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Комментарии : 10

@kjbunnyboiler Месяц назад

Excellent as always👍👍

@daShare Месяц назад

I'm guess that a fair bit of labour went into this one. Not all customers would be will to spend the money unfortunately.

@myalbatech Месяц назад

You are correct, this was more of a project and I wouldn't want to do another one! Shipping is also impractical due to the weight.

@ingenfestbrems Месяц назад

Remember this one. Cool to see it dismantled. I have 2sets b&w m1, I guess these are a good match with this subwoofer

@josephsaucedo8691 Месяц назад

80 pounds dang that is heavy two of them would be as much as me ya i could see why it would of been dropped. At that weight id imagine it can handle at least 1000w 💯👍✌️😉

@johnyzamora1419 Месяц назад

Mine has a weird clicking or ticking sound for a minute then it will normally works ...

@josephsaucedo8691 Месяц назад

I don't understand power subwoofer number one rule never mount amplifier to the woofer box and that the first thing done in powered subs. of course the amp is going to give out that whats wrong 90 percent of the time with most powered subs yet they still build them 💯👍✌️

@jedi-mic Месяц назад

It's an awful power supply looks really dated something you would have seen 25 years ago! it's not that old is it?? why didn't they just use an ice power supply you can buy a ice power supply for that module and it would be less than half the size and more Powerful that's what I would do. that power supply is a dreadful design not designed very well looking at it B&W drop the ball on that one