Worth it?
Your speaker designer / manufacture certainly thinks so. Even though some of his speaker are equipped with separate equalized low frequency systems they are often showed with his outboard subwoofers and has just introduced a new model. Vandersteen and his dealers understand low frequency reproduction. An outboard Vandy sub will be compatible with your 3As and any future Vandersteen mains upgrade. You can't lose.
-3dB @26Hz.
Most rooms need that -3dB compensated for. Your room may need a flat low frequency or an increase of +db. The main speakers locations are usually not the best locations for low frequency output to integrate with the room despite the speakers designed ability. The room usually dictates where the location of low frequency origination should be. These locations usually provide a better response at the listening position and a reduction in the rooms bass nodes.
What can you can expect?
If setup properly you should hear very little difference until you turn the sub/s off. The low frequencies will integrate with your speakers and you should hear improved separation. Integration with your room in the form of seamless increased low frequency gain as it was recorded and not falling off. You'll be surprised at the amount of low frequency that is actually recorded on a variety of recordings. Hearing it well presented in your room is what the subwoofer does.
Lastly, its simply way more fun.
Your speaker designer / manufacture certainly thinks so. Even though some of his speaker are equipped with separate equalized low frequency systems they are often showed with his outboard subwoofers and has just introduced a new model. Vandersteen and his dealers understand low frequency reproduction. An outboard Vandy sub will be compatible with your 3As and any future Vandersteen mains upgrade. You can't lose.
-3dB @26Hz.
Most rooms need that -3dB compensated for. Your room may need a flat low frequency or an increase of +db. The main speakers locations are usually not the best locations for low frequency output to integrate with the room despite the speakers designed ability. The room usually dictates where the location of low frequency origination should be. These locations usually provide a better response at the listening position and a reduction in the rooms bass nodes.
What can you can expect?
If setup properly you should hear very little difference until you turn the sub/s off. The low frequencies will integrate with your speakers and you should hear improved separation. Integration with your room in the form of seamless increased low frequency gain as it was recorded and not falling off. You'll be surprised at the amount of low frequency that is actually recorded on a variety of recordings. Hearing it well presented in your room is what the subwoofer does.
Lastly, its simply way more fun.