shanucalicut
New Member
Hi members, how we can add more left and right surround speakers with 5.1 Avr setup. The room is so long. So I am thinking to use more left and right surround speakers to cover more area. Receiver is Denon with 5.1 out---shan
More side speakers for 5.1 home theatre setup
- Thread starter shanucalicut
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shanucalicut
New Member
no response on this topic yet.. due to many reason i droped my projecr and now ready to move further. But my question is still unsolved one. Still waiting for some expert advice.
So i repeat my concern here. How can I add multiple spakers for surrounf left and right. I will decide to use Onkio base model which is 5.1 with A and B zone. only 1 pair output is there on the back. What is the way to use mire than one pair. At least 4 speakers only for surround left and right. I hope my question is clear-- thanks in advance shan
So i repeat my concern here. How can I add multiple spakers for surrounf left and right. I will decide to use Onkio base model which is 5.1 with A and B zone. only 1 pair output is there on the back. What is the way to use mire than one pair. At least 4 speakers only for surround left and right. I hope my question is clear-- thanks in advance shan
I understand your question. You basically are looking for a multiplex cinema kind of set up where there are multiples side speakers in line on the side wall, though all side speakers on each side generate same frequency or same channel. The way i see it, there are couple of ways of achieving this at home:-
1) Using AVR: If you want exactly one additional pair for surrounds, some 7.1 AVR's instead of using the 6th and 7th speakers for Prologic/Neo/EX/ES/ True 6.1/7.1 source, give us an additional option of simply duplicating the 4th and 5th channels of a 5.1 channel source. I am not sure about which models can do this but i am sure this feature should be there in some high end receivers. Similarly, for another additional pair, for a premium budget it applies for 9.1, 10.1, 11.1 channel AV receivers etc.
2) Using multi-channel analog ports: If you have an AVR that has multichannel 5.1 analog output or a Bluray/DVD player with multi channel analog output which u are using to connect to a multi channel amplifier like the ones from EMOTIVA or any similar brand, you can use a Y splitter cable/connector in as many loops as per your needs to extract duplicate signals for each of 4th and 5th channels from the analog outputs. In this case, ofcourse the need is to have as many inputs in the amplifier as well so as to supply power to so many speakers depending on your need. Probably you may have to buy another 5 channel amplifier if you already have one for existing 5 channel setup. A total of 10 speakers can be connected this way which will give you (10 less 3 for fronts) 7 speaker terminals for using surround speakers.
3) Using low end PC speakers / powered HTIB's: This is probably the worst way to go for if you are quality enthusiast for speakers but this achieves the objective at dirt cheap cost. This again assumes you are using the 5.1 analog outputs of AVR or the Disc player. In this case, instead of connecting to an amp, you will connect all analog plugs to a PC based 5.1 home theatre systems from the likes of Intex/F&D/Creative/Logitech etc that comes for 5-10K INR. The advantage here is , if you just use a Y splitter on the surround analogs and buy another one of these 5.1 systems, you can have 5 more speakers and additional subwoofer which u can connect to whatever channels you want to. Within 20K, you will have a layman's 10.2 home theatre with 10 speakers and 2 subwoofers. Since these are powered home theatre systems, there is no need of AVR or amplifiers. Ofcourse it all comes at losing quality as these speakers are not meant for HT enthusiasts.
Hope that helps.
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shanucalicut
New Member
Yes. you understood my points clearly. thank you very much for your detailed explanation.. so I will consider your point and will come back to this thread if I have any concern..shan
In a way it is interesting to think that this is dumb or not. Lets consider regular cinema halls- because they are way bigger and have to cater to 200+ audience, there are so many side speakers on the side walls which makes sense. But at the same time there are IMAX audioriums, bigger than regular screens, which do a home like installation for surrounds- there is exactly and only one full range monster size surround speaker for rear L and R each in IMAX screens catering to their so called 'point source' technology. Both technologies deal with different ways to ensure the surround audio reaches each listener in the right discrete way.
shanucalicut
New Member
I am happy with 5.1.. I need to use more speakers to get good surround effect in each and every row. 7.1 will just add 2 speakers in my back wall.. Moreover I want give a commercial
theatre look and feel.
shanucalicut
New Member
I never had aby experience with 7.1 or 9.1. I was wondering if i use 5.1 movie file for 7.1 setup how it will generate the surround effect..can i get same sound as my 4th and 5th speaker from 6th and 7th speaker..
All entry level 7.1 AVRs will extract selective info from 5th and 6th channel through Prologic IIx or DTS:Neo to give you exactly the rear presence of sound. Getting the same sound from the rears as sides is however a specific feature mostly available on mid to premium level Amps. And in any case, download and read the model's pdf user manual to find out if this feature really is there.
There is one more peculiar aspect to this thing. Dolby vs DTS tracks on any 7.1 AVR. And this is true for all 7.1 AVRs including entry level ones- In the default mode, If the source is dolby 5.1 it will get reproduced as is from 5.1 channels and 6th and 7th will be mute. However if the source is DTS 5.1, the 4th and 5th get duplicated by default. This is how by default DTS is encoded and decoded as a...lets call it an industry standard.
In any 7.1 AVR, HD or non HD source, if
Source: Dolby 5.1
Channels active: 5.1
No Duplication
6th and 7th will become active only if applied for via Pro logic IIx or DTS Neo
Source: DTS 5.1
Channels Active : 7.1
Duplication of 4th and 5th for 6th and 7th respectively is done by default.
It is optional to use use PLIIx or Neo for 6th and 7th to extract only selective sounds from 4th and 5th channels - the AVR uses its own algorithm to choose the audio ques.
Source: DTS/Dolby 7.1 channel
Channels Active : 7.1
If you have only 5.1 speakers connected, downmixing the 6th and 7th back to 4th and 5th is possible by any 7.1 AVR.
shanucalicut
New Member
thanks .. it is well explained.. I will go for 7.1 when i upgrade the system..
I have a doubt.. now in the market more than 7.1 is available. I windered if prople are using its for home theatre setup?
I have a doubt.. now in the market more than 7.1 is available. I windered if prople are using its for home theatre setup?
MJ23Bulls
Active Member
By the way, when using Y splitter for connecting the 6th and 7th speakers, will there be any impedance calculations to be looked into it? If so, the AVR's impedance must also be taken into consideration. Is my understanding right?
Y Splitter referred above by myself is for multichannel analog out connections of an AVR to split one analog connecting point into two or more which would then, via analog connection (High quality RCA cables) go into a separate (one or more) multichannel amplifier. Hence there is no question of impedance or wattage calculation.
It is only at the next stage when u actually connect speakers to the amplifier's speaker terminals using banana plugs or open wire when the impedance calculations matter. Assuming all speakers connect to same amplifier, the impedance therefore will be same for each of the channels and speakers have to be matched accordingly.
You need to do a good read on how matrix encoding/decoding works.
Ok, it sounds inferior
TO give you the gist - Dolby PLII and DTS Neo work on extraction, not ambiance creation. It is just extracting information from two surround channel and putting it in the back. But its not random extraction. It has a certain process of matrix encoding and decoding. Quite a good read.
If you really want to see whether it works fine or not, try the "Mission is a go" scene from Mission to Mars movie, in 7.1 setup. The track is 5.1 but the extraction works so beautifully that the sound goes through all the 7 speakers, in a circular fashion.
Then there are some indian movies. The Bhool Bhulaiya and Chandramukhi (Tamil) are a very good example.
If you really want to see whether it works fine or not, try the "Mission is a go" scene from Mission to Mars movie, in 7.1 setup. The track is 5.1 but the extraction works so beautifully that the sound goes through all the 7 speakers, in a circular fashion.
Then there are some indian movies. The Bhool Bhulaiya and Chandramukhi (Tamil) are a very good example.
shanucalicut
New Member
hi frndz,
one of my friend ask me a question. he does'nt have space to place front right and left speakers. he has space below the screen which is around 3ft from the floor. If he place the speaker below the screen on the extreme right and left, and ofourse centre speaker on the middle, is he still can experience the sound from the front wall. total width of the front wall is 9 ft..
one of my friend ask me a question. he does'nt have space to place front right and left speakers. he has space below the screen which is around 3ft from the floor. If he place the speaker below the screen on the extreme right and left, and ofourse centre speaker on the middle, is he still can experience the sound from the front wall. total width of the front wall is 9 ft..
Not an issue. He can still experience and have a good front stage. Only thing he should take care for better experience is to tilt all the three front speakers slightly upwards and the front L and R angularly inwards towards the viewer which will definitely help in better imaging.
Basically all these adjustments are done to ensure the high frequency sounds from tweeters of speakers have an identifiable directional characteristic. Any adjustment in placement through which the audience can draw the fine line between being able to identify which speaker the sound is coming from and yet feel the separation as a part of the same sound mix forming one single image in our listening ears, thats where you get the optimum balance.
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