Klipsch Forte IV ... what amp ?

No , I am not asking for a particular amp style and brand here . Although I am not refusing any suggestions either !

What I would like to know first is what characteristics to look for in an amp to drive these speakers (Forte 4’s) to full performance .

Such characteristics as :

1.) What is needed to handle the low impedance of 4 ohms ?

2.) While the sensitivity is listed at 99 dbs. it is considered to be closer to @ 96 dbs,

3.) What about negative feedback ?

4.) Will the 12" woofer and 15 " rear radiator need special attention also ?

5.) Do the horns require special consideration ?

I feel that these considerations will go further to getting it right than , " hey , just get a tube amp and enjoy " .

Thank you & Be Safe .

saki7003-15-2022 3:48pm

sns Details Discussions Posts This discussion Message User 3,791 posts 03-17-2022 at 11:53pm Copy Comment URL Report Comment Edit Delete I've used Prima Luna Dialogue Four, custom built 300B SET monoblocks and Coincident 845 SET amp with my Klipschorns which has impedance drop to around 3 ohm at 100hz, sensitivity is higher at 104db. I've also auditioned Music Fidelity M2SI and Denafrips Hyperion amps, both class a/b solid state. All have handled the impedance drop just fine. I do prefer tubes with Klipschorns, and expect all Heritage line better with tubes. As for sound quality, my favorite amp with the Klipschorns is the 300B's, sweetest sound which compliments Klipsch inherent qualities best. The one issue I could see in running 300B amps is handling your impedance curve, my 300B's monoblocks each have power supply equivalent to what one would normally see in stereo 300B, so no issues for me. 845SET should be no problem, and the push pulls fine as well.