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SMPS for Zen/First Watt amps?
SMPS for Zen/First Watt amps?
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Old 10th January 2020, 10:21 AM   #1
Baard is offline Baard  Norway
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Default SMPS for Zen/First Watt amps?

Hello

Regarding: SMPS600RS from Connex.
For the ease of use, I wonder if I can use this SMPS for Zen v9 or F3 clone? Itís a single supply and adjustable to 46 volt. As an inexperienced DIYíer, this SMPS solution would help me a lot if itís an acceptable way to go.

Next question: If so, do I have to use one SMPS600RS pr. channel?

Here is the specifications for SMPS:
http://connexelectronic.com/wp-conte.../SMPS600RS.pdf


Baard
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Old 10th January 2020, 10:47 AM   #2
Stanislav is offline Stanislav  Australia
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Looks like:

1. it will work OK
2. one SMPS should be sufficient for both channels.
3. if it's cheap enough use one per channel for better separation (consider mono blocks)
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Old 10th January 2020, 05:07 PM   #3
Baard is offline Baard  Norway
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Thanks :-)
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Old 10th January 2020, 05:21 PM   #4
mbrennwa is offline mbrennwa  Switzerland
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SMPS for Zen/First Watt amps?
My Aleph J runs off two SMPS supplies (one for each rail). Works well and sounds good!

I used CLC filters to block the residual high-frequency switching noise. I don't think it makes a huge difference to the sound, but I can sleep better.
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Old 10th January 2020, 10:08 PM   #5
Stanislav is offline Stanislav  Australia
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Zen V9 and F3 already include Cap Mx , check the circuit diagrams.
That means high freq. switching noise is reduced to practically non-existant.
Plus an additional soft start feature.

CLC or CRC filters will not work with every SMPS, some will become unstable and shut down.
Now RCRC might be a better proposition.
The CapMx as in Zen V9 / F3 is a better option IMHO.
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