Should I sell my accuphase for this schiit

that does not mean that two bridged Aegirs won’t sound better than the op’s accuphase.

I never said they wouldn’t.
I said to the OP a stereo Aegir on the tweeters and a stereo Vidar on the bass with a $39 Sys will be the OP’s best option. And he can still use the trial period

Sierra’s are simply not bi-ampable

It's not hard, and would take about an hour and add value to the speakers as then they are bi-ampable or bi-wireable

@georgehifi I do have have the Vidar and the Aegir . I am interested in your suggestion on a horizontal bi amping VS mono block config. These two amps have different powers as you know yet the diagram you posted has only one preamp as the master volume. I read that this kind of bi amping works only if one amp of the two to be used has a volume control. How exactly do I insert a Schiit sys in the signal path or in that diagram. Thanks for your time. My preamp is a Freya Plus 

delvalle23
I do have have the Vidar and the Aegir
I am interested in your suggestion on a horizontal bi amping VS mono block config.
How exactly do I insert a Schiit sys in the signal path or in that diagram. Thanks for your time. My preamp is a Freya Plus

Very easy and will sound a lot better, you put the Schiit Sys on the louder of the two then your Freya drives the other amp and the Sys. You adjust the Sys once only to get the gain the same on both amps. The the Freya is your master volume.

I’ve redone the horizontal diagram for you to include the Schiit Sys, Aegir and Vidar.
In this I’m "assuming" the Vidar has more gain than the Aegir hence it has the Sys on it’s input. ("could" be the Aegir has more gain then you’d put the Sys on it)
https://ibb.co/SRj7hPT

Get a pair of these for your Freya’s output https://www.audioquest.com/accessories/splitters-connectors-adaptors/adaptors/hard-rca-splitter-male-to-2-female  There are even cheaper ones on ebay.

And I would copy and store that diagram as I don’t think they last long as it’s a free service to host them.

Cheers George

@georgehifi Wow . Thanks so much for this diagram. You even included names of each component. Thanks so much. 

@georgehifi Wow . Thanks so much for this diagram. You even included names of each component. Thanks so much.

Thanks, you may not even need the Sys if the gains of the Aegir and Vidar amps are the same. (unlikely if different manufacturers, but a possibility from the same Schiit) 
  
But if you do you and it's on the Vidar you can also vary the Sys to use it for "those odd recordings" that may need a bit more bass or a little less bass, or visa versa if it on the Aegir, a liitle more or less treble.
So it will almost be like having a control to vary the tonality of the sound if needed, with certain recordings

Cheers George