2. amps-preamps
  3. 148159-72798

Getting new Preamp

Need a little help in making a decision on purchasing a New Audio Research LS 27 or Backert Labs Rhumba Extreme 1.2? I am using Solid State Amps -Aragon Palladium on the Highs, 8008 on the Low End(newer version).Infinity Epsilion Speakers.
Open for For suggestions.
lilrock
almarg's avatar
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almarg
9,670 posts
 
P.S: You’ll also need to have some means of matching the gains of the two amps, of course, if their gains don’t happen to be identical. And achieving a proper gain match will probably be affected by whether you drive the amps balanced or unbalanced, or some combination thereof.

Regards,
-- Al
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lilrock OP
10 posts
 
Many Thanks this is a great Help

Happy Listening to all
Larry
rlb61
784 posts
 
Just my $0.02, but there is absolutely no logical reason for a modern power amp to have less than a 47K Ohm input impedance. A lower input impedance makes it very difficult to mate a preamp (particularly from a different manufacturer) to drive the power amp properly, presuming the ratio of 10:1 is used. This is particularly true in the OP's specific situation of biamping.
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