Infinity Kappa 9 pros and cons

[Magfinity]

Poly domes absolutely do dent

If you dent a polydome , you really have to put a fist through it. The material (given it's still in good shape) has a natural tendency to bounce right back. And even if you dent them (completely in) the later versions (kappa x.1 and x.2) had a mesh dome behind them from preventing that.

You can easily pull the dome bezel and all apart and pop it right back into shape. Without any compromised result, it's not a a metal polydome (such as used in Genesis systems speakers) that remains deformed after being pushed in.

 

[Kevinbigdog]

If you dent a polydome , you really have to put a fist through it. The material (given it's still in good shape) has a natural tendency to bounce right back. And even if you dent them (completely in) the later versions (kappa x.1 and x.2) had a mesh dome behind them from preventing that.

You can easily pull the dome bezel and all apart and pop it right back into shape. Without any compromised result, it's not a a metal polydome (such as used in Genesis systems speakers) that remains deformed after being pushed in.

Not in their current state. I agree if you have some fresh polydomes that haven't been aging for 30 years then they will pop back out ....but the fragile yellow ones, if you push a Dent in the majority if them... they stay in place ...pliability has long since left the building....and if you try to pop it out you can crack the dome..

Of course there are no absolutes and there are exceptions to every rule

 

[Magfinity]

Not in their current state. I agree if you have some fresh polydomes that haven't been aging for 30 years then they will pop back out ....but the fragile yellow ones, if you push a Dent in the majority if them... they stay in place ...pliability has long since left the building....and if you try to pop it out you can crack the dome..

Of course there are no absolutes and there are exceptions to every rule

Done it plenty even with the yellowed ones you do risk micro fractures . The series 2 kappas,still are flexible enough (you can recognize those on the non baffled bezels)

The original ones are really gone by now, I even transfered a coil from a old polydome onto a Miller sound dome. There are way luckily by now to restore them pretty well.

 

[SleeperSupra]

I had Kappa eights and Kappa nines. The Kappa nines were very difficult to drive and fatiguing. The Kappa eights were easier to drive and very fatiguing.
I think single ended planner drivers are fatiguing. I have ESS AMT 1 B's and I think they're way better.

 

[SleeperSupra]

Both sets of Kappas had better bass. Upper mid-range on up it's no contest. An air motion transformer sounds better.

 

[Magfinity]

I had Kappa eights and Kappa nines. The Kappa nines were very difficult to drive and fatiguing. The Kappa eights were easier to drive and very fatiguing.
I think single ended planner drivers are fatiguing. I have ESS AMT 1 B's and I think they're way better.

Kappas can only sound as good as your system and most definitely room allows. Most people simply do not have the space for them.

Also I strongly recommend to replace emit diaphragms where you can. It does make a huge difference in sonic quality. The amount of people I seen play with wrinkled diaphragms are countless.

Emit run up to 48khz so it's most definitely not surprising it sounds super revealing (into the fatique area)

My wife suffered the same faith listening to kappas.
I have the rs1b , rsII,rs4 (2 sets) , rsB, renaissance 80,kappa.9 , kappa 8 , kappa 8.1, kappa 5.1, kappa 6, kappa 6.1 ,

And my main speakers are Boston acoustics so there ya go !

 

[Kevinbigdog]

If you dent a polydome , you really have to put a fist through it. The material (given it's still in good shape) has a natural tendency to bounce right back. And even if you dent them (completely in) the later versions (kappa x.1 and x.2) had a mesh dome behind them from preventing that.

You can easily pull the dome bezel and all apart and pop it right back into shape. Without any compromised result, it's not a a metal polydome (such as used in Genesis systems speakers) that remains deformed after being pushed in.

 

[Magfinity]

Take it apart it's 4 screws you dent it right on out. Or massage the dome gently 9 out of 10 times dents right out.

It's not metal it's just cheap thin plastic ...won't damage it at all