Which subwoofer will take high level inputs and limit bass output to mains.

[PittViper]

Hi,

I am thinking about using an Emotiva mini-x a-100 amp. I currently have a pair of Dayton B652 speakers. I wan to add a subwoofer, and want to limit the low frequencies going to the bookshelfs.

How do I do this. Is there a sub that will take the high level outputs from the amp, and output high level to power the bookshelfs? I had heard that the dayton sub-800 does this, but just recently read that it doesn't.

My budget is very limited, as you can see by the components I am using. I cannot get a 500 dollar sub.

What is your advice on how I can accomplish what I am trying to do for the least amount of money.

Thanks,

 

[TheWarrior]

Many subs have a 'line level' or 'speaker level' connection via speaker wires that filter everything below the crossover point to the subwoofer, and then pass the higher frequencies off to the speakers. However, I don't believe this would work in your set up as, 1) it would require a sub for each speaker, and 2) assuming the sub has its own amp, you can only send it an unamplified signal from a pre-amp or processor, not from the speaker amp. The A100 would not work in this set up.

However, given your choice of speaker, I would say still get the A100 or similar. Its a good starting point if you can't find a used AVR on craigslist in your area. But forget using a subwoofer. A cheap sub is worse than no sub at all. Use this as a spring board to either an occasional music fix, or start down the path to Audioholism by starting a 'speaker fund' and save for better equipment. Enjoy!

 

[Adam]

I don't agree that you'd need a sub for each speaker, as most subs with that capability will handle a pair of speaker inputs/outputs. I do agree that a cheap sub can be worse than no sub at all, though. What is your budget? $50? $100? $200?

 

[Jeff R.]

The Dayton Sub you mentioned will do exactly this.. I bought a very similar setup for my brother in law for Christmas. The little 8" Dayton is a nice little sub for the money. I set him up with a lepai amp and the 4" Dayton bookselves and the 8" sub. A great little setup for the money. You will run the speaker wires to the sub speaker input and the run another set of speaker wire from the sub speaker output to the bookshelf speakers. you can adjust the crossover point on the back of the sub.

 

[JimBanville]

The Dayton Sub you mentioned will do exactly this.. I bought a very similar setup for my brother in law for Christmas. The little 8" Dayton is a nice little sub for the money. I set him up with a lepai amp and the 4" Dayton bookselves and the 8" sub. A great little setup for the money. You will run the speaker wires to the sub speaker input and the run another set of speaker wire from the sub speaker output to the bookshelf speakers. you can adjust the crossover point on the back of the sub.

Except the manual says the speaker level outputs do not have a high pass crossover. It says the high level inputs and outputs are connected in parallel with one another.

 

[shadyJ]

I doubt very much you will find a subwoofer with a speaker-level high-passed output. You will have to high pass the speaker at the line level.

 

[KEW]

I doubt very much you will find a subwoofer with a speaker-level high-passed output. You will have to high pass the speaker at the line level.

Do you know of any subs that do this at the line-level?

 

[Irvrobinson]

Do you know of any subs that do this at the line-level?

The Velodyne DD Plus series does this, but they're expensive, even used.

 

[shadyJ]

The SVS subs have high-passed line-level outputs at 80 Hz.