Infinity Kappa 80 crossover

[frisqo]

this is a part of what you can read on his page

The question is whether we can make a crossover at all without measurements
- and the answer is NO. It cannot be done, and crossovers cannot be calculated.

We cannot use manufacturers' data sheets to simulate crossovers either. The frequency response data are most often taken from an "infinite" baffle that does not in any way resemble your cabinet. These data do not contain proper phase data, etc.

Yes, you can set up a speaker with a crossover based on theoretical values that will ensure you won't burn your tweeter or midrange and you may sit back and think this is a great speaker - and maybe it is - but maybe you wouldn't like it if you saw its measuring performance.
I have a friend who refuses to let me measure his speakers because he knows he won't like them if he sees how they perform. You may object that this person is perfectly happy with his speakers and so what? And this is perfectly true!

- nothing can compete with "good enough" -

I see a lot of people spending minor fortunes on expensive drivers and "high-end" components and never get the full potential of the drivers due to improper crossovers. The crossover is the heart of the speaker and can be made in numerous ways. Only minor changes to the crossover can turn a great speaker into mediocrity and visa versa.

I receive mails from people having made a construction from some presumed "allround" series crossovers that floats around on the web. They're awful! They won't work, so don't waste your money -

 

[frisqo]

An equalizer might help improve the sound quality, but without the ability to measure the frequency response of your speakers, it is also true that an equalizer might degrade a speaker's sound. I would avoid spending money on an equalizer. Modern audio electronic manufacturers have stopped building older style equalizers. Instead they use automated digital sound correction software, such as Audyssey.

Spikes can't hurt a speakers sound. Don't pay a lot of money for them. Are the speakers on a hard floor or a carpet? Spikes are said to help with a carpet, but I doubt if you will hear any difference.

i have them on hard (wood) floor ... i think ill save some money buy another power amp and try to find a classic vintage kappa 9.2i or another good speaker

thanks again

 

[TLS Guy]

You're welcome.

500-540 US dollars! That's a lot of money for crossovers. What did your Infinity Kappa 80s cost?

It depends on the components. The components for these crossovers cost $450 and that was eight years ago.

The components are on three boards, bolted to the central brace. The whole crossover is much more massive than anything you would see in a commercial speaker.