How to hook up a preamp to a Integrated amp

tsl49
Thanks for the info . Mine has no main in . Thought it seemed impossible from looking at mine . Shoot ! Just got the Int. a couple days ago and like but seems closed in compared to a Sim Audio p5 /krell ksa 100 combo .

almarg , Thanks for taking the time to add to this post . So are you saying the most important thing is to keep the simaudio volume as low as possible ? In the past i had a similar situation with using a passive volume pot into a Primaluna integrated . In that situation i maxed out the volume on the Primaluna and used the volume pot for changing level . 

Dekay - simao , Thanks for taking the time to post on my inquiry . 
The LSA  is used . I traded for it . 
Before the trade i had bought the Simaudio p5 preamp and it arrived after the trade .I have a few amps i tried the p5 on and wanted to hear it with the LSA once i read the Positive Feedback article 
The Moon p5 / LSA combo sounds great with only 40% of my music . Just so so with the rest . 
I installed a pair of Siemens tubes in the LSA which sound much better to me than the EH that were installed .
LSA is a fine integrated .