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Discussion Starter · #1 ·
Ok, I hope I can explain myself clearly here:


I have an older pioneer vsx456 receiver and tower speakers with 12" woofers hooked up to it. I recently got a new sub. I want to hook up the sub so that the sub will play the frequencies in accordance to where I set the LPF on the sub AND so that the main speakers will still play all there normal frequencies. Does this make sense? Im trying to sort out the differences between using speaker level and line level connections. It seems that the line level connection is the way to go. So if I hook up my sub to the sub pre-out on my receiver what exactly will the receiver do? Does it have a LPF in it and what is it set at? The receiver's manual is no help here. Also, once I hook up my sub to the pre-out on the receiver, will the reveiver automatically stop sending my front speakers low signals and redirect them to the sub. Can anyone shed any light on this.


karl
 

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Discussion Starter · #2 ·
Not too sure if I was clear or not......


"Your receiver or pre-amp will have at least rudimentary bass management features if it has a subwoofer output as yours does. Depending on your unit, you may be able to (1) send all bass frequencies below 80 Hz (or another cut-off you set) to the subwoofer, (2) send bass frequencies only to your main speakers (do not use the subwoofer at all), or (3) use both the subwoofer and your main speakers to produce bass frequencies below 80 Hz at the same time. Any receiver or pre-amp will allow you to use option 1 or 2 above. Be sure that if you do have your system set to route all bass to the subwoofer that the subwoofer is set up properly (connected to the proper output, powered on, set at the right volume level). Your receiver or pre-amp may or may not let you send bass signals to both a subwoofer and your left and right main speakers; check the manual that came with your equipment to find out about your particular model."


this is from an article I just read....... what I want it (3). Is it possible?


karl
 

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Typically, you can run your main speakers large, and set the sub to yes in your receiver. That would run mains full range, and only send LFE to the subwoofer. If you wanted extra bass, you could run the sub as "plus" if the setting is available. That would send energy below the xover to both the mains and the sub at the expense of accuracy. Some receivers have broken bass management and will force all speakers "small" if the sub is set to yes. I find it very hard to believe there isn't anything about bass management in the manual.


Are you sure it is a vsx-456? that isn't listed on Pioneer's website. They do list a 457 pro-logic receiver though. If it is pro-logic, then it is anyone's guess how it will do BM when you hook up a sub. There is no LFE in pro-logic. I'd re-read the manual cover to cover and see if they say anything about how it works it's bass management...


Good luck,


Sorny
 

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Discussion Starter · #4 ·
Thanks for trying to help. Yes my reciever is a VSX456..... its about 5 years old. Maybe its a Canadian only model. Yes it is a Pro-Logic Unit. Also the manaul says NOTHING about bass management. This is somewhat frusterating! Why do they have to make home theater so difficult sometimes. I guess I can hook it up in a bunch of different ways and let my ears be the judge.


karl
 

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Luv, the pre-outs are full-range, typically used to add an amp and use the receiver as a preamp. This is a good place to pick up the feed for the sub, since it has its own LPF in it.


As long as you don't have pre-outs and main-ins with jumpers that you must remove, the receiver should still power the main speakers.


There is no bass management in ProLogic. Don't pull your hair out over this.
 
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