Is pre-out the same ?

Thanks Folks ;
   I do have an ' all tube system ' so...ya !
But this is an all-in-one box for streaming and I really
like the simplicity of this thing . It all works together and is quite easy
to operate . It is my most used system but not the one for critical listening . 

PMM - owners manual ? we don't get no owners manual !
            That spec is not listed and I have 2 emails out to the                             manufacturer . They seem to be quite busy ! ? 

You all be safe now

Just plug it in and away you go......

It will be safe.

The 10:1 ratio has more to do with the frequency response.  The higher the ratio the better, but even a 5:1 won't sound terrible or break anything.

Since you haven’t mentioned the make and model integrated you have all we can go on are general rules of thumb, like the 10:1 ratio. If there is a mismatch the specific result is a roll off of bass response, but even integrated amps’ pre-outs if they are really preamp outputs are likely to be low enough impedance to avoid that. The final point is the big one, we always say the preamp is like the first lens in an optical system, very important in setting the stage for what follows. How good a preamp is in there?  If it’s a Naim Atom, then you should be in great shape, others…your ear will tell. 

Eric - thanks .

crustycoot - excellent 'guess'. Maybe not so crusty ?

Happy SAFE Tunes .