Amplifier ZA3

[PhilKersh]

Sadly I have felt it necessary to cancel my "early bird" order of two ZA3's because, with this implimentation of the on/off function [press and hold for two seconds], I cannot now use my voice activated smart plugboard to remotely turn the ZA3 on and off [as I can with my V3].
Can I then suggest that with the next iteration of the ZA3 you also include [perhaps on the rear] a physical toggle switch with which to turn the ZA3 on and off. This would then allow for the afore mentioned remote operation via a smart plugboard.

Keep up the great work and keep on listening.
Many thanks.
Phil.

 

[D1N0##]

Sadly I have felt it necessary to cancel my "early bird" order of two ZA3's because, with this implimentation of the on/off function [press and hold for two seconds], I cannot now use my voice activated smart plugboard to remotely turn the ZA3 on and off [as I can with my V3].
Can I then suggest that with the next iteration of the ZA3 you also include [perhaps on the rear] a physical toggle switch with which to turn the ZA3 on and off. This would then allow for the afore mentioned remote operation via a smart plugboard.

Keep up the great work and keep on listening.
Many thanks.
Phil.

Can't you use the 12v trigger interface for power on?

 

[PhilKersh]

Can't you use the 12v trigger interface for power on?

Unfortunately, I have nothing anywhere in my audio chain to trigger the 12v interfaces [one on each ZA3] with. Looking online the only devices that seem up to the job are the Emotiva units. But the import taxes etc would, no doubt, be prohibitive.

 

[D1N0##]

Fosi will have to make a pre-amp with a 12v trigger then

 

[PhilKersh]

Fosi will have to make a pre-amp with a 12v trigger then

Perhaps not!
After a little research - and now that I know what an amplifier trigger is and does - I have found a way to make my trusty smart plugboard work for me. I plug my 2x ZA3's into the [four socket] board then I plug 2x12v psu's into the remaining two sockets and connect these to the trigger input of the amps. Thus, when I voice activate the system, power is delivered to the amps, the triggers go to 12 volts [turning the amps on] and once more the dulcet tones of Jakub Zytecki issue forth!

Actually, there is also a slight variation on the above.
The 2x 12 volt psu's could be substituted with a single 2x usb power adaptor into which could be plugged 2x USB to dc [5v to 12v] cables.
This might be a more elegant method.

Of course, whichever method is used, one should be careful to use the correct polarity for the 3.5mm jack plugs [tip is positive seems to be the standard] And psu's or USB's [and cable converters] that can deliver/handle say 1amp would be a good safety measure.

I am awaiting delivery of my pair of ZA3's so I cannot yet vouch for the effectiveness of any of this.

I invite comments.

 

[joqueval]

Hello @PhilKersh
I think the solution you have determined is very correct.
Fortunately we have many options today than we did a few years ago for all these small setups.
I have something similar to activate the cooling system from the home cinema.
Using a 12v to 220v trigger.
You may only need a 12v trigger to activate the two ZA3

 

[PhilKersh]

Hello @PhilKersh
I think the solution you have determined is very correct.
Fortunately we have many options today than we did a few years ago for all these small setups.
I have something similar to activate the cooling system from the home cinema.
Using a 12v to 220v trigger.
You may only need a 12v trigger to activate the two ZA3

View attachment 46

Hi Joqueval,
I am at the stage now where I have ordered the parts needed:

2x12v 2amp mains transformers [2 amps to ensure that they run cold].
2x3.5mm mono jack plugs [to replace the power plugs on the transformer outputs].

So now I cannot do any more until the ZA3's arrive.
But I appreciate your words of encouragement and advice.
Regards.

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