amplifiers for Kappa 9's


I have seen some feedback in here about the use of Bryston Amps for driving Infinity Kappa 9's, and agree that these are not the best amps to be using for these speakers. This is how my current system is set up, using 2 4B-NRB's, 10B Crossover and 12B Preamp... and MIT Cables throughout. I do find my Kappa 9's are very bright, but do not lag in the bottom end with the use of my Bryston amps. I am thinking about going to a tube amp for the top end, such as an Audio Research VS-110. I feel this will compliment my system quite nicely, however, any input or feedback about my idea would be appreciated.
kjak67

Showing 4 responses by gmood1

I was checking out the crossovers in these speakers a couple of weeks ago at a friend's home. WOW these things have a lot of real estate inside of them! Just from the looks you need a mammoth amplifier to get the best out of them. I bet a Carver ZR1600 would spank them like a red headed step child.:-)

Good luck with finding a tube amplifier for those monsters!
Hey Sean how about two Carvers run as monolocks? You think it would suck them dry? I have no doubt they need some serious current. With all those parts, it's a wonder any signal ever makes it to the drivers.:-)

Or how about a Carver ZRx3200 1600 wpc into 2 ohms. Or two ZRx3200 monoblocked with 3200 wpc into 4 ohms! This model may do the trick.LOL
Sean with all do respect. That would be the same if I drove a Ford over to Chevrolet for inspection. And ask them to give me an honest assesment on it.LOL

Seriously though..I've seen this beat to death about the distortion ratings. One guy claims distortion from the tripaths chips at 50 khz and 70 khz. Who the hell listens to anything at that frequency ? :-)

Some of the same proponents against switching power supplies and digital amplifiers go to live concerts where these are the only amplifiers used. Then they come home and brag about how good things sounded.

I never see anyone downing David Bernings amplifiers. Some of the same audiophools that generalize about switching power supplies. Can't wait to drop $4500 on this tube amplifier that uses basically a switching power supply.
Go figure! I've come to the conclusion ..listening is the only way to know. The measurments have their place but it's not with this type of technology IMHO. Maybe someone needs to come up with a different type of measurements for this technology. You seem like a good candidate Sean.Your super technically inclined. How about it ? Let me not leave Eldartford out, you guys should team up. :-)
Bemopti123
Are you sure about Digital amplifiers not ever never being able to drive such a load? Those are pretty strong words my friend. I know some of you fellas are from that old school.I seriously doubt an amplifier like the Carver ZRx3200 would have a problem driving these speakers. I've come to realize Paul you really dislike Carver products.
Even though these amplifiers aren't under Bob Carver's name, you seem to associate the two. Carver pro is a different company. I would love to see your face with this amplifier hooked up to those speakers. I guarantee you would have to eat those words! These amplifiers do use toroidal transformers if you didn't already know. Here we go again with the generalizations.

I'm so glad you mentioned Ric Shultz. I contacted him sometime back about his Beta amplifier which uses ICE power modules. Guess what power supplies it uses.. switching power supplies! Here's a qoute from his website.

Dual mono (each amplifier module has its own separate power supply). These modules use switching power supplies. Some people feel that switching supplies (like Peter at Acoustic Reality who uses linear supplies with his modded Ice Power modules) are less good than linear supplies.....then there are those who feel switching supplies have advantages over linear supplies.....My take is that whatever type of supply you use, it must be tweaked or you have no idea of what it is capable of. The stock Ice Power module sounds....well....lets say zippy and two dimensional.....after our tweaks and mods the module is perfoming better than the Ice Power modules that we were using that use linear supplies....these tweaks were to the power supply and other things. What matters in the end is how something sounds....this is what you guys will determine.

Either you or him isn't telling the truth. Which one is it?
Quoting from the great Homer Simpson..DALT! LOL