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Impedance matching between 2k ohm phono pre and 100k ohm amps via passive pre

Howdy - 

I have a noob question about passive preamps.  

I am running my Wright Sound wp200c tubed phono stage (2k ohms output) through a passive preamp into two Dayens Ampino mono blocks (100k ohms input).  

It sounds good to my ears, but just wondering if this raises red flags to anyone?  Tortuga Audio says the ratio of amp to source should be more like 100:1, and I'm at 200:1 right now.  Cables are less than three feet. 

Thanks!
subterranean6
subterranean6's avatar
subterranean6 OP
37 posts
 
"

Output impedance:
2 kilohms nominal; will drive loads down to 600 ohms with slight loss of output level.

"

Yeah, it's pretty 'hot'.  Gain is only at 9 pm and I have plenty of volume.


subterranean6's avatar
subterranean6 OP
37 posts
 
"

This is a low-impedance output (nominally 2 kilohms) that can easily drive any standard vacuum-tube or solid-state amplifier.

"
subterranean6's avatar
subterranean6 OP
37 posts
 
I mean, I'm running this through this Sys passive pre, and the there is plenty of volume.  I'm just wondering if I'm going to damage something...
subterranean6's avatar
subterranean6 OP
37 posts
 
But yeah - I see a bunch of phono pre-amps that are less than 100 ohms out, so 2 kilohms does seem like a big difference.  
georgehifi's avatar
georgehifi
10,312 posts
 
subterranean6 OP9 posts02-17-2017 11:50amI mean, I’m running this through this Sys passive pre, and the there is plenty of volume. I’m just wondering if I’m going to damage something...
No, if you can do this then you have plenty of output from the phono stage. You would have a touch more output again if the the Schiit Sys was 20kohm instead of 10kohm, would’nt worry at all about then.

Just make sure the interconnects to and from the Schiit are low capacitance ones less than <100pf per ft which the specs should show, if not ring the maker he should know. An keep them less than <1.5mt.

Cheers George
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