Help With Crossover 3-Way Seas 9.1 Home Theater

[Francec]

At those prices, miniDSPs would be cheaper, give the ability to shape the crossover curves, apply any correction including for room correction and go completely active. You could even buy software to measure speaker response.

 

[2MuchRiceMakesMeSick]

This seems much more reasonable.

Jantzen 4.7mH 15 AWG Air Core Inductor
Jantzen 2.2mH 18 AWG Air Core Inductor
Jantzen 1.8mH 15 AWG Air Core Inductor
Jantzen 0.68mH 15 AWG Air Core Inductor
Jantzen 0.47mH 15 AWG Air Core Inductor
Jantzen 0.33mH 18 AWG Air Core Inductor
Jantzen 0.15mH 18 AWG Air Core Inductor
Jantzen 0.10mH 18 AWG Air Core Inductor

Subtotal: $118.67

 

[2MuchRiceMakesMeSick]

Give me strength.
You are clearly looking at the wrong suppliers and brands.

Im looking at madisound for the Goertz and parts express for the jenzens

 

[2MuchRiceMakesMeSick]

At those prices, miniDSPs would be cheaper, give the ability to shape the crossover curves, apply any correction including for room correction and go completely active. You could even buy software to measure speaker response.

I assume your meaning something like this?
miniDSP 8x8 kit | miniDSP

It would take care of all channels except the center.
How do you think it would work 4 with a carver A660?
Commercial Audio Series - Amplifiers

 

[rob g]

Check out these UK prices....
You must have an equivalent source in the States, no doubt cheaper:
Audio Inductors 0.01mH - 0.50mH ferrite, air cored, iron dust.

 

[_henry_]

Hi,

You can consider other 3way, seas excel needs a lot of parts to tame the cone breakup.
I'm using minidsp 2x4, it's a very good products with reasonable price.
What kind of budget do u have? It seems ur building system from ground up.
Ucd amps from hypex is also another options. But you need 27ch for that. Make a smaller 2way surround prob good idea.

Cheers
Henry

 

[_henry_]

Hi,

Have u check this http://www.humblehomemadehifi.com/download/Humble Homemade Hifi_Black Box_copy.pdf

Cheers
Henry

 

[2MuchRiceMakesMeSick]

Right now I am looking at these
XM Series | Power Amps | Products | Yamaha

3 of them would run 2 pairs (3amps x 4channels == 12 outputs)


Would a 31 band eq along with a good active crossover be able to take care of the cone breakup?

 

[_henry_]

Minidsp 2x8 can handle XO and EQ. 1 for every 2speakers.

Ucd180 prob best solution for u. If you get 27ch, maybe they give u disc

Cheers
Henry

 

[2MuchRiceMakesMeSick]

cool im looking into them now. What kind of software/hardware do i need to get to analyse the spectrum? So I can tune out the cone breakup? I think I will learn best this way.

 

[_henry_]

Get parts express omnimic and you're good to go. It's a measurement mic with USB + software develop from praxis.

Don't forget to make some reflections absorbers, either from thick felt or absorbent panels, in order to get valid measurements. Or if u have spare room, put as many felt and panels as u can.

Minidsp have the plugins options, u can choose which ones suitable for u.

Cheers
Henry

 

[2MuchRiceMakesMeSick]

Update... I just bought 3 CX168
QSC - CX 8-Channel Amplifiers

One of these active crossovers (will buy more if i like the quality)
BEHRINGER: DCX2496

And one of these (will also buy more if the quality is good)
BEHRINGER: DEQ2496

The eq will analysis the room and shape the sound to be flat. Which should provide a good baseline to compare to. I will still build one set exactly how troles designed so I can compare the results.

 

[rob g]

. I will still build one set exactly how troles designed so I can compare the results.

Also with a bit of fettling maybe you can make them sound as close of possible.


Will you be buying a quality mic to test the speakers outside?

 

[2MuchRiceMakesMeSick]

Also with a bit of fettling maybe you can make them sound as close of possible.


Will you be buying a quality mic to test the speakers outside?

Yes. Is http://www.parts-express.com/pe/showdetl.cfm?Partnumber=390-790&FTR=omnimi that was mentioned earlier in the thread a mic that is up to par?

I think going active will give me the ability to learn what im doing here as I can tweak the xover and eq and see the differences it makes.

Is there an easy way to find out what crossover frequencies the designer selected for each driver (mostly so I have a good baseline to start with)?

 

[2MuchRiceMakesMeSick]

rob thanks again for your patients while I flipped back and forth. I appreciate the advice you, and everyone else, gave on this forum.