Santa brought me an OmniMic V2

[jimbones]

Re: Santa brought me an OmniMic V2

OK so I got in touch with Bill W ;) and he suspected the fancy DAC I had was rolling off the high end. So I went directly from my Denon cd player and get this>>>>>

better but should I play with it or leave it alone??

[jimbones]

Re: Santa brought me an OmniMic V2

Don,

Thanks for the heads up they gave me credit towards parts. As they say;Parts is Parts!! Ha HA

[donradick]

Re: Santa brought me an OmniMic V2

:( My wife paid the $298. you are saying it was like $100 cheaper than that?!:eek:

Yep - deal of the day Dec 24 or thereabouts for $200. Give 'em a call.

[Jeff B.]

Re: all better on the impulse?

[ATTACH=CONFIG]31954[/ATTACH]

OK so I redid the measurements and low and behold I think this is what it is supposed to look like. I don't think I did anything different so I don't know why I am getting different results. Is this OK?

The snapshot labled "left speaker impulse response" looks correct. The frequency response generated from it should be reasonably accurate. Maybe it was a USB thing.

[jimbones]

Re: all better on the impulse?

There is something wrong here. Your impluse response is waaaaaaaaay too ragged. This pretty much negates any response curve you see above it. What distance are you measuring at? Something is just not right.

OK so I redid the measurements and low and behold I think this is what it is supposed to look like. I don't think I did anything different so I don't know why I am getting different results. Is this OK?

[jimbones]

Re: Santa brought me an OmniMic V2

Hmm. I have other speakers in the room and i was playing the sweeps at a decent volume. Wonder if the other speakers were contributing to the ringing?

[jimbones]

Re: Santa brought me an OmniMic V2

There is something wrong here. Your impluse response is waaaaaaaaay too ragged. This pretty much negates any response curve you see above it. What distance are you measuring at? Something is just not right.

My room also has a 2x2 grid ceiling, could it be the room and not the speakers?

[jimbones]

Re: Santa brought me an OmniMic V2

:( My wife paid the $298. you are saying it was like $100 cheaper than that?!:eek:

[Jeff B.]

Re: Santa brought me an OmniMic V2

Ha ha Damn beginners!! I am measuring from 3-4 ft away on axis. I do have diffusers in the room (?).

I inverted the tweeter and the dip is not as bad. Needs more attenuation on the mid and possible tweeter.

[ATTACH=CONFIG]31903[/ATTACH]

I didn't capture it here but the impulse is just as bad. No change there. OK so now where do I go from here Thanks for you help.

Jimbones, There is definitely something wrong. I wouldn't modify a crossover based on the curves at this point. I have personally never experienced curves like you are getting, so I am not sure what it going on. Maybe Bill W. will see this and have an idea.

[Tin_Ears]

Re: Santa brought me an OmniMic V2

OT (a little) but this was the DOTD a few days ago. If it was bought new from PE fairly recently you might be able to get $100 refund or in parts exchange.

[jimbones]

Re: Santa brought me an OmniMic V2

Ha ha Damn beginners!! I am measuring from 3-4 ft away on axis. I do have diffusers in the room (?).

I inverted the tweeter and the dip is not as bad. Needs more attenuation on the mid and possible tweeter.



I didn't capture it here but the impulse is just as bad. No change there. OK so now where do I go from here Thanks for you help.

There is something wrong here. Your impluse response is waaaaaaaaay too ragged. This pretty much negates any response curve you see above it. What distance are you measuring at? Something is just not right.

[Jeff B.]

Re: Santa brought me an OmniMic V2

OK so I redid it with ss sweep also removed a bit of attenuation on the tweeter. Now it looks like I have dips/peaks.

[ATTACH=CONFIG]31896[/ATTACH]

There is something wrong here. Your impluse response is waaaaaaaaay too ragged. This pretty much negates any response curve you see above it. What distance are you measuring at? Something is just not right.

[jimbones]

Re: Santa brought me an OmniMic V2

note first dip is at XO point

[jimbones]

Re: Santa brought me an OmniMic V2

OK so I redid it with ss sweep also removed a bit of attenuation on the tweeter. Now it looks like I have dips/peaks.

[Jeff B.]

Re: Santa brought me an OmniMic V2

OK so I made my first measurement and whoa, look at that falling HF response. I am using the psuedo-pink noise "only to" and measuring about 3-4 ft from speaker about 30 from floor. Am I doing something wrong? It sure dose not sound like it looks. It sounds better than this. Am I doing something wrong?

[ATTACH=CONFIG]31876[/ATTACH]

Yes. You need to be measuring using the short sine sweep if you want accurate high freqency response. The pink noise measurement has limited usefulness in designing a speaker.