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 .

saki70

Showing 6 responses by saki70

Hello and thanks for the response .

Actually the Forte's were for another system with a Primaluna Dialogue Premium !

But the Boss Lady wanted them in this streaming system that I am putting together. 

This system is running a Naim Unity Atom which is an integrated amp/streamer/DAC with a pre -out . Using the pre-out , we wanted to try something else for amplification .

We have about 400 sq. ft.in an 'L' shaped room with the listening position about 

10 ft. away . We listen from soft , just above a wisper , to loud , yelling across the street . I believe that the output impedance of the Naim pre-out to be 24 ohms .

Be Safe 

.

If you mean the present setup ... it is quite good . We could easily live with it .

But... I don't think that I am allowed into this hobby without trying something

else . Always looking for something better , you know !

I am trying to keep our audio prejudices out of this discussion so as not to

taint the desired answers .

Thank you

Oddiofyl ;

That is an amp that I have been considering , except for the biasing thing .

I am not able to do that . I have been wondering about the Horn mono's

which are auto biasing but only 25 amps .

It's always something !

Thanks for the info .

Be Safe

The main thing that is worrying us is the low impedance and what requirements

a tube amp would need to handle it .

Thank you 

Oddiofyl ;

Can you compare your horn mono's to any other amps on the forte's ?

Primaluna and Quicksilver have caught our eye's .

OOps . now those prejudices . that I spoke of  . are out of the bag !

Be Safe ,