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7271A standalone calibration

booaaaa, muokattu 10 Vuodet sitten.

7271A standalone calibration

Youngling Viestejä: 3 Liittymispäivä: 25.1.2013 Viimeisimmät viestit
hi everyone, i am a new member and i hope i can get more knowledge thru this forum.

i have a 7.1 setup whereby the fronts are ht210b and the surrounds are the smaller ht206. for the sub i have the 7271a. when i do my speaker calibration thru my trinnov teq12, i can get all speakers right in terms of distance and hence time delay but not for the sub. it is always measured as too far by 3 meters. in addition the sub input sens is now at 0 and the level a dbfs is only -40 while the fronts are at -50, is that normal? i cant get the sub to go louder. should i dial down the input sens of the fronts?

i really hope someone can shed some light into this problem of mine.

thanks in advance
jem
ilkka-rissanen, muokattu 10 Vuodet sitten.

Re: 7271A standalone calibration

Yoda Viestejä: 2564 Liittymispäivä: 23.3.2009 Viimeisimmät viestit
Hi Jem,

Distance calibration for the subwoofer rarely matches with the actual physical distance, especially with a DSP subwoofer where there is always some additional delay which system tries to compensate. More important is to check that the system frequency response with the subwoofer looks good and there is not dip visible around the crossover area which would indicate a phase mismatch.

I'm not familiar with Trinnov teq12, but isn't there an option for individual channel level setting? I'm not sure what you mean by -40 and -50 dBFS?
booaaaa, muokattu 5 Vuodet sitten.

Re: 7271A standalone calibration

Youngling Viestejä: 3 Liittymispäivä: 25.1.2013 Viimeisimmät viestit
is it true that if the main speaker and the sub is positioned at the same plane then the phase in the sub will always be at 0? i do see a strange sub response at crossover point at the moment

Liitteet:

ilkka-rissanen, muokattu 10 Vuodet sitten.

Re: 7271A standalone calibration

Yoda Viestejä: 2564 Liittymispäivä: 23.3.2009 Viimeisimmät viestit
Hi,

No, that is not always the case, especially with DSP subwoofer which has always some extra delay compared to an analog speaker which need to be compensated.

To me it looks like your room has some fair room modes at 40 Hz and 20 Hz which dominate the response making the crossover area look a little attenuated. But the good thing is that the EQ seems to do a good job at flatting the response and adjusting the phase between the sub and mains because the crossover area doesn't have any dip. How does it sound?