Powering up and down a system?

Hi-Fi Corner
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I haven’t been good about the sequence of powering on and off my system when replacing components. Oops! I hope I haven’t done any damage to anything! The following is my understanding of the proper sequence for my system. Does this look correct?

Powering Off Sequence:

  1. Volume Control: Set the NAC282 volume to minimum or activate mute.
  2. Subwoofers: Turn off subwoofers.
  3. Power Amplifier: Turn off the NAP200 by powering down the HiCap.
  • This will simultaneously cut power to the NAP200 and the main audio circuitry of the NAC282.
  1. Pre-Amp Control (NAPSC): Turn off the NAPSC to completely power down the NAC282’s control functions.
  2. DAC (Weiss 204): Turn off the Weiss 204 DAC.
  3. Streamer (Aurender N10): Shut down the Aurender N10 using its shutdown option in the menu for a safe power-down.

Powering On Sequence:

  1. Streamer (Aurender N10): Turn on the Aurender N10 and allow it to boot fully.
  2. DAC (Weiss 204): Power on the Weiss 204 DAC and allow it to initialize.
  3. Pre-Amp Control (NAPSC): Turn on the NAPSC to power the control circuits of the NAC282.
  4. Power Supply (HiCap): Turn on the HiCap to power the main audio circuitry of the NAC282 and the NAP200.
  5. Power Amplifier (NAP200): Confirm the NAP200 is receiving power from the HiCap.
  6. Subwoofers: Turn on the REL subwoofers.
  7. Volume Control: Gradually increase the volume on the NAC282 to your desired level.
2

FAQ is your friend:

Power on and power off sequence - Frequently Asked Questions - Naim Audio - Community

2 Likes
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OCD heaven

:grin:

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4

Yup. That’s me. Lol!

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5

No. HC doesn’t power 200…

6

In the 90’s yes.
Now its turn on when need some music playing,
Turn off when finish.

7

The HiCap powers both the NAC282 and NAP200.

8

No, it powers only the preamp.
The signal passes through the Hicap on its way to the power amp, but that is powered by it’s own mains connection and internal power supply.

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My misunderstanding. Thanks for the clarification.

10

Simple rules,

Power up: front to back
Power down: back to front

“Front” being the source and “low power” equipments (even those with “hefty” power supplies).
“Back’ being the high power units, i.e. power amps.

Worked for our spacecraft………

The only addition to that would be to switch on one equipment at a time to avoid/mitigate “inrush” current spikes (I have read that XPS PSU are susceptible to blowing fuses, but I’ve never had any issues).

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11

I don’t get too bent out of shape over this.

I have a Naim stack of PSUs (for SL, 252, NDX2,300DR). I power on from SCDR, SCDR, XPSDR, 300PS and power off the reverse. As for other things, turnable PSU, subs, etc…whatever.

I’ve gotten it wrong too. No issues. I’ve had power outages that cut it all off at once. No issues. No blown fuses.

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12

One can over think things. Turn the amp off first, turn in on last.

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Power up: front to back
Power down: back to front

Thanks. Love this. It simplifies things a lot.

14

Indeed. So long as the amp is turned off you can turn everything else off in whatever order you like. Similarly when turning on; just do the amp last.

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