Anyone using ARC pre-amp with Machintosh amps?

ARC recommends amps with at least 20k impedence for their pre-amps
Macs are 20k.

hiendmmoe12-27-2008 10:34pm

bob_bundus Details Discussions Posts This discussion Message User 1,834 posts 12-28-2008 at 12:46am Copy Comment URL Report Comment Edit Delete general rule: input Z(impedance) of the load should be at least 10 times the output Z of the source. 2k-ohms seems like a relatively high output Z but if this is a tube ARC pre it could be that high. Still from a spec perspective seems like this arrangement should work satisfactorily for you.
onemug Details Discussions Posts This discussion Message User 784 posts 12-28-2008 at 01:07am Copy Comment URL Report Comment Edit Delete What Bob said. Only concerns I could see would be using long ICs with high capacitance.
tom_hankins Details Discussions Posts This discussion Message User 928 posts 12-28-2008 at 02:43am Copy Comment URL Report Comment Edit Delete A friend is using the ARC Ref. 3 with Mac 1201 monoblocks and the sound is great. He has had this setup with no issues for almost two years.
dbarger Details Discussions Posts This discussion Message User 215 posts 12-28-2008 at 02:58am Copy Comment URL Report Comment Edit Delete I have used my Ref 3 with a Mc402 often and it sounds great. The output impedance is quite low for a tube amp at 600 ohms.
audiofan1 Details Discussions Posts This discussion Message User 6 posts 01-09-2009 at 05:25am Copy Comment URL Report Comment Edit Delete Sounds Great to me ! I'm using a ARC SP 15 Tube Pre with a Mac 2500 Amp.