2. amps-preamps
  3. 124706-74756

Preamplifier for Threshold 400A

HI members. I need some advise on choosing a good preamplifier for a Threshold 400A. At this moment I'm using a Blue circle Despina 3 Preamp I would like something that offer balance inputs for future upgrades to a Threshold SA 4e. Your advise will be highly appreciated. Thanks. Osiris. 
osirir
jafant's avatar
jafant
19,602 posts
 
Yes, for SS go with a Pass Labs!
rsfphil
139 posts
 
The Threshold SA4e input impedance is only 600 ohms in balanced mode. If you want to run balanced you will most likely need a ss pre. I can't speak for the MW, but the ARC would have to used in single ended mode. It wouldn't be able to properly drive the 4e in balanced mode.
Ag insider logo xs@2x
edwyun
244 posts
 
Yup, had an ARC years ago and due to impedance mis matching could not use the XLRs from the ARC to the Thresholds. I’d stick to using RCAs as the Thresholds are not differentially balanced. Still rock nonetheless.
Ag insider logo xs@2x
edwyun
244 posts
 
As an aside, I use a Rowland Capri preamp that has XLRs, but I still use RCAs to my Threshold SA/6e amps. Unless you are using really long runs of cable, it should not matter XLR or RCA.
osirir OP
11 posts
 
My budget will be $1500.00 to $2000.00. If I find something in the use market based on yours suggestion I will sell the Despina  wich is not hard to sell. I would like to stay with tubes Preamps. Thanks for yours inputs. Osiris 
More to discover