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Not getting true Surround Sound

tomvmd
04-01-2009, 09:25 AM
I have an 8 year old Kenwood amp with Pro logic

Hooked up 2 front speakers on set A
2 rear speakers on Set B (both sets work and sound great when listening to music CD's)

have 2 speakers upstairs that play well (set B using bypass function)

But when I play aDVD with both sets A and B downstairs, I dont get the true surround sound effect

any help??

Bigloww
04-01-2009, 09:42 AM
What do you mean by "true surround effect". Your receiver will only do 2 channel Dolby Prologic.. That is all your gonna get withn that thing. If you want "true surround sound", you will need a true 5.1 DD/DTS surround sound receiver and setup.

tomvmd
04-01-2009, 11:29 AM
What do you mean by "true surround effect". Your receiver will only do 2 channel Dolby Prologic.. That is all your gonna get withn that thing. If you want "true surround sound", you will need a true 5.1 DD/DTS surround sound receiver and setup.

I guess I mean the whole effect of "planes flying overhead"...or the "army coming from behind"

so a 2 channel receiver will not do that?? It HAS to be a 5.1??

Stew4HD
04-01-2009, 11:38 AM
I guess I mean the whole effect of "planes flying overhead"...or the "army coming from behind"

so a 2 channel receiver will not do that?? It HAS to be a 5.1??

You are correct.. 2-channel (stereo) cannot do that.

tomvmd
04-01-2009, 01:57 PM
You are correct.. 2-channel (stereo) cannot do that.

It must not be a 2 channel..kenwood-v8030

the manual explains Dolby 3 stereo set up, complete with center speaker(which I also have) and also a delay time for rear speakers

Stew4HD
04-01-2009, 02:59 PM
It must not be a 2 channel..kenwood-v8030

the manual explains Dolby 3 stereo set up, complete with center speaker(which I also have) and also a delay time for rear speakers

DOH, you did say Pro-Logic. It still does not do true 5.1.

Sadly, Pro-logic is long gone (from the old VHS days where they matrixed in the rear channel signals).

tomvmd
04-01-2009, 06:14 PM
Granted that everyone here knows more than I do...but a google search for the model kr-v8030 says it has 5 channels...

...and the manual shows how/where to place your speakers for suround sound

(sorry to be so persistent about this...it just hasnt made sense!!)

Stew4HD
04-01-2009, 07:52 PM
Granted that everyone here knows more than I do...but a google search for the model kr-v8030 says it has 5 channels...

...and the manual shows how/where to place your speakers for suround sound

(sorry to be so persistent about this...it just hasnt made sense!!)

Yes, pro-logic does have 5 channels but is not the same as the newer dolbly digital 5.1. What pro-logic receivers would do is take a 2channel (stereo) soundtrack and matrix (fake in) the 5 channels by deciding what sound should go to each speaker. The system was/is analog whereas the next revolution was (digital) dolby digital. It actually decoded a digital soundtrack on DVDs that had the audio soundtrack broken up ito the 5 seperate channel (if the soundtrack was dolby digital instead of stereo or mono). In order to get this new type of audio, we needed an optical (fiber optic) cable or digital coaxial.

Dobly Digital made it to where we could hear distinct seperation to each speaker (fronts, center, surrounds and subwoofer making it a 5.1 soundtrack) In order to get true Dolby Digital and/or HD audio, we now neew a receiver cable of receiving that signal (digital) and has either analog 5 channel inputs, optical/coaxial or HDMI.

I hope this help explain it a little better without going into bandwidth and deeper details. If you Google Pro-logic and look up the Wiki on it, it explains in much more detail, then Google Dolby Digital and also DTS HD-MA to see the progression to where we are now with audio.

Now we have HD digital sountracks on Bluray (DTS HD MA and others) and sometimes have 7.1 soundtracks.

BIslander
04-01-2009, 11:50 PM
Granted that everyone here knows more than I do...but a google search for the model kr-v8030 says it has 5 channels...

...and the manual shows how/where to place your speakers for suround soundProLogic is the decoder associated with the Dolby Surround encoding system that came into existence in the 1970s, prior to the development of modern digital audio.

Dolby Surround is a method used to fold four discrete channels into a stereo signal. Dolby Surround has L/C/R and a mono surround channel. ProLogic is the decoder that extracts those four channels from the stereo signal. Your receiver will duplicate the mono surround channel to both surround speakers. There's no LFE channel. That's how you get to five speakers.

ProLogic really only works when fed a source encoded with Dolby Surround. So, you need to configure your player to downmix 5.1 tracks to Dolby Surround. Most players have that kind of option - you choose regular stereo or surround encoding when the player downmixes multichannel tracks for two channel output.

Dolby Surround was the original theatrical surround system developed in the 1970s. It was then used to create surround on VHS. It is still used on some video game systems where multichannel tracks are output over stereo connections. It sounds pretty good, but it's never going to give you the same surround sensation you can get from a discrete 5.1 recording.

tomvmd
04-02-2009, 06:50 AM
thanks for your time and information peopel!!!

I think I finally get it!! Looks like I will keep my old dinasaur system for music (it still sounds great) and get one of the newer 5.1 systems to go with my HDTV

Just bought the Panny 58inch u800 and want to get the most out of it!

Stew4HD
04-02-2009, 07:20 AM
thanks for your time and information peopel!!!

I think I finally get it!! Looks like I will keep my old dinasaur system for music (it still sounds great) and get one of the newer 5.1 systems to go with my HDTV

Just bought the Panny 58inch u800 and want to get the most out of it!
You are most welcome for the info. :hithere:

If you need any recommendations for a new receiver, don't hesitate to ask. Depending on your budget.. there are many, many to choose from.

tomvmd
04-04-2009, 02:08 PM
But if a video tape is labeled "Dolby digital surround sound" my system should play it (and I hear it)

but will not get the surround effect on newer dvd's labeled 5.1

right??

Eddie501
04-04-2009, 02:59 PM
Here's your problem in a nutshell: You don't want the 2nd set of speakers hooked up as set B. That's just duplicating the sound from set A. Even on an old pro-logic receiver there should be speaker connections on back called 'rear'. Use those instead if you want the surround effect.

Stew4HD
04-04-2009, 05:31 PM
But if a video tape is labeled "Dolby digital surround sound" my system should play it (and I hear it)

but will not get the surround effect on newer dvd's labeled 5.1

right??

If your tape player has an optical or digital coax out, then you'd get true dolby digital if your receiver has the capability.

You will only get true dolby digital surround sound with a digital audio signal.

GregLee
04-05-2009, 01:42 PM
Yes, your Kenwood receiver should give you surround sound. You need to have 5 speakers connected: the A speakers, center, and rear speakers. Set the receiver to use the A speakers, make sure the "speaker impedence selector" in back is not set to "A or B: 8ohms or more", select "Dolby Surround" to be "on". Then you will get some surround effect for any stereo signal, but it will sound better if the signal has encoded surround information.

BowerR64
04-14-2009, 01:07 AM
I had an older Sony receiver STRV-1070 this monster is a nice unit but what i decided is that it was just outdated. It still works and sounds great but has no digital or optical in.

When i used the mains out and then hooked up a center and rears the level of the rear speakers were just to low to sound good unless my seating area was right near the rear channels wich is how they use to recomend the setup. I found using a mode on my receiver called "3 channel" in a simulated setting it sounded a little better. The rear speakers had a very similar level.

To me it almost sounds like they are just seperating the audio by frequencys. What i mean is highs and lows seem to come out of the mains and rear and a midrange like dialog came from the front. This sounds ok but i think it could be better with a different receiver using the digital or optical input.

I sold the receiver to a friend and he loves it but im now on a quest for somthing else.