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Old 25th April 2017, 03:55 PM
Richard Richard is offline
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Join Date: Dec 2005
Location: Notts
Posts: 4,981
Default Re: HD-3P refill with air.

Thanks John and Greg

There's also a thread running for 10 years(!!) on diyAudio which gets interesting around post 31 which you've probably both read but I'll link to for anyone else looking for info and ideas,

http://www.diyaudio.com/forums/multi...udax-hd3p.html
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