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The F5X Preamp
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Old 2nd May 2019, 04:06 PM   #261
EUVL is offline EUVL  Europe
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Now under thermal test.
Otherwise operational, bar some user interface cosmetics.




Patrick

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Old 2nd May 2019, 04:46 PM   #262
BigE is offline BigE  Canada
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Wow!

This is more than DIY.... this is bespoke.
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Old 2nd May 2019, 05:25 PM   #263
EUVL is offline EUVL  Europe
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I think you will like our F5X power amp as well ....




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Old 2nd May 2019, 07:00 PM   #264
maxw is offline maxw  United Kingdom
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The F5X Preamp
How does the power switch work in both units? Is it soft on/off?
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Old 2nd May 2019, 07:31 PM   #265
EUVL is offline EUVL  Europe
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There is no power switch at the PSU.
But one can be added at the mains plug if so wish.
The button at the front of the PSU switches off the regulator pass devices.
Thus cutting supply tothe amp.

There is of course build-in soft start, etc.


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Old 2nd May 2019, 08:17 PM   #266
maxw is offline maxw  United Kingdom
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The F5X Preamp
Quote:
Originally Posted by EUVL View Post
The button at the front of the PSU switches off the regulator pass devices.
Interesting. What's the power consumption when powered "off"? If you have one of those measuring devices...
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Old 2nd May 2019, 08:41 PM   #267
EUVL is offline EUVL  Europe
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For the amps zero. Off is off.

The auxiliaries consumes almost 10W.
Many relays. And the display eats a lot of current.
(No SMPS, all linear regulators)


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Old 12th June 2019, 08:38 PM   #268
merlin2069er is offline merlin2069er  Canada
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Is this an improvement on the b1 / dcb1? how well does it match with an F5 amp?
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Old 13th June 2019, 12:52 PM   #269
CeeVee is offline CeeVee  Portugal
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The F5X Preamp
Please do a little research...you will be grateful you did.
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