center channel speaker placement

[mpw]

Hi friends,

The Paradigm CC190 is a rear ported center channel speaker. ( Quoted price about Rs 13900 in Mumbai )

a. How much space would be ideal inbetween the center channel speaker and the wall ?

b. What would happen if this center channel is flush mounted to the wall ? Dont have much space to play with as far as the center channel goes..

The wall in this case happens to be a 1.25 inch thick wooden frame on which my TV hangs. ( pictures can be found in my thread on the Titan Monitors )

For rear ported front speakers one would keep about 6 to 8 inches from the wall ( if not more ) to reduce boominess.. would the same theory apply here too ?

Another question..

The spec sheet says Frequency response On axis 90Hz to 20 KHz at +/- 2 db and 90 Hz to 17 Khz at +/- 3 db. The LFE is mentioned at 54 Hz.

Does this mean that the center channel can do down to 54 Hz ? Does this also mean that in the AVR i can adjust the crossover setting to 60 Hz for the center speaker ?

Plan to take an audition soon and i thought i would like to have this input before i decide.

Have attached an image of the CC190 rear.. googled from audiocafe.co.kr.

Thanks,
mpw

 

[venkatcr]

The Paradigm CC190 is a rear ported center channel speaker. ( Quoted price about Rs 13900 in Mumbai ) a. How much space would be ideal inbetween the center channel speaker and the wall ?

Ideally it should be 12 to 18 inches from the wall.

b. What would happen if this center channel is flush mounted to the wall ? Dont have much space to play with as far as the center channel goes..

It will sound anemic. If you lack space, don't get a rear firing centre.

For rear ported front speakers one would keep about 6 to 8 inches from the wall ( if not more ) to reduce boominess.. would the same theory apply here too ?

yup.

The spec sheet says Frequency response On axis 90Hz to 20 KHz at +/- 2 db and 90 Hz to 17 Khz at +/- 3 db. The LFE is mentioned at 54 Hz. Does this mean that the center channel can do down to 54 Hz ? Does this also mean that in the AVR i can adjust the crossover setting to 60 Hz for the center speaker ?

The lowest the centre can go is 90Hz. LFE refers to Low Frequency Emitter and that signal goes to the sub. In general, you should keep the crossover at 80Hz.

 

[mpw]

Thanks Venkat..

In that case - atleast looking at it thru numbers - my existing center channel is inferior as it mentions a spec if 80 Hz - 30 KHz at -6dB.

regards,
mpw

 

[mpw]

bump.... someone post..

 

[venkatcr]

In that case - atleast looking at it thru numbers - my existing center channel is inferior as it mentions a spec if 80 Hz - 30 KHz at -6dB.

I don't understand why you say it is inferior. A centre channel is mainly for dialogues and any speaker that can handle 200Hz to some 3000Hz will suffice. 80Hz to 30kHz is good for a centre channel.

Cheers

 

[spirovious]

It will sound anemic. If you lack space, don't get a rear firing centre.
.

Well I have Tannoy centre with 2 rear ports.I have closed them with spounge(came with spk)and kept it in case(Behind LCD).
Now becase its in case I gave good effect & closed ports are not making any difference.Centre sounds smooth.
Earlier It was kent on shelf above TV & I felt that depth in dialouge was missing with little brightness.

Now-


Earlier-

 

[mpw]

I don't understand why you say it is inferior. A centre channel is mainly for dialogues and any speaker that can handle 200Hz to some 3000Hz will suffice. 80Hz to 30kHz is good for a centre channel.

Cheers

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i assumed so since my current speakers mention 80 Hz to 30Khz at minus 6 db.. the paradigm CC190 mentions 90 Hz to 20 Khs at minus 2 dB. I suppose the freq response at 0 dB would be the true indicator then..

anyways i will listen to the Paradigms and then tane a call..do chip in with more inputs if feasible.. thanks

 

[mpw]

Re: center channel speaker placement.. CC190.. CC290 Paradigm

Hi friends,

The Paradigm CC190 is a rear ported center channel speaker. ( Quoted price about Rs 13900 in Mumbai )

a. How much space would be ideal inbetween the center channel speaker and the wall ?

b. What would happen if this center channel is flush mounted to the wall ? Dont have much space to play with as far as the center channel goes..

The wall in this case happens to be a 1.25 inch thick wooden frame on which my TV hangs. ( pictures can be found in my thread on the Titan Monitors )

For rear ported front speakers one would keep about 6 to 8 inches from the wall ( if not more ) to reduce boominess.. would the same theory apply here too ?

Another question..

The spec sheet says Frequency response On axis 90Hz to 20 KHz at +/- 2 db and 90 Hz to 17 Khz at +/- 3 db. The LFE is mentioned at 54 Hz.

Does this mean that the center channel can do down to 54 Hz ? Does this also mean that in the AVR i can adjust the crossover setting to 60 Hz for the center speaker ?

Plan to take an audition soon and i thought i would like to have this input before i decide.

Have attached an image of the CC190 rear.. googled from audiocafe.co.kr.

Thanks,
mpw

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Got a response from paradigm as under..

the reason why we have ports on the back of those models is because the port allows the speaker to reproduce lower frequencies. Normally we recommend that you keep the area around the port clear so that the air moving in and out ...of the port does not hit any obstacles and thus make noise.

However, if your system includes a subwoofer and you set the center channel speaker to Small, then the bass signal is directed away from the center speaker and toward the sub. In such setup the port does not contribute any additional bass and can be plugged.

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