High current amp search

@atmasphere the speaker cables are 6.5 feet long and I believe they are 11 gauge approximately. I do use a subwoofer crossed over at 37 Hertz or so as well but as I've said, it's not really the quantity of bass as much as quality. The room is actually quite good in that regard provided I'm using the right amp.  the speakers are not  terribly hard to drive otherwise but from experience the bass does demand sufficient current to sound right, hence my search for the "right" amp. At least in my application

i would look at a Mark Levinson 3 series, 335 or 336 the both double down to 2ohms.

@mark200mph when you say - they need to be gone through every 7 to 10 years, what do you means exactly? I'm assuming you're not recapping them with that frequency. 

the speaker cables are 6.5 feet long and I believe they are 11 gauge approximately. I do use a subwoofer crossed over at 37 Hertz or so as well but as I've said, it's not really the quantity of bass as much as quality. The room is actually quite good in that regard provided I'm using the right amp.  the speakers are not  terribly hard to drive otherwise but from experience the bass does demand sufficient current to sound right, hence my search for the "right" amp. At least in my application

@lukaszwk +1

You may have to do some audition. As I mentioned earlier, there are class D amps (the self oscillating kind such as Hypex, Purifi, Orchard or our amp) that can handle the load of your speakers with no worries. Class D amps vary quite a lot in sound quality, moreso than any other kind of amp, because so much depends on getting the surrounding circuits right like the input buffer and power supplies. That is why you read so many different opinions about them. 

Dear @lukaszwk  : I think you are not " seen " yet the whole " picture " as no other gentleman that posted in your thread. Pñlease let me explain my point of view that I think should be help you a " lot ":

Regulary/normally Klipsch woofers crosover the midrange at 550hz and your model goes down to 31hz and maybe in parctice at 28hz and this fact means that the IMD in those woofers is to high " disturbing " seriously the frequency range between 30hz to around 300hz or even higher because the same wwoofers must reproduce all tha frequency range putting " trash " in very critical an important frequencies due that those woofers excursions  below 100hz puts that high IMD in the other critical frequencies: adding distortions obvous for our ears. The best way to deal with that IMD ( Intermodulation Distortion ) is through the integration of true self powered subwoofers crossing trhough a high pass at around 100 hz and in this way the main speakers will shines as never before because are liberated of those " terrible " bass range and your whole system will shines too due that NOW that critical bass range will be handled by a dedicated subs designed with dedicated woofers and amplifiers for that specific range.

With that you can forget of ttttthat high current amp because you just do not needs.

Next an example of the type of subs you need and that not only comes with the high pass filter but has the lower THD around of 0.5% only ! !:

Velodyne Acoustics Digital Drive Plus Subwoofers – Velodyne USA

With your speakers almost no other solution can outperforms my advise if you want to listen a truly high quality level performance from your room/system.

Regards and enjoy the MUSIC NOT DISTORTIONS,

R.