Question on biamping (1 Viewer)

Hi all


I have a Denon 789 receiver that is capable of biamping from Surround Back to Speaker A or B. I just bought a pair of Polk Monitor 75Ts to replace a pair of Polk bookshelf speakers. So today I hooked them up. I removed the bridges between the posts on the speakers and then wired them up. In the excitement, I forgot to set the receiver to bi-amp. When I tried the speakers, I heard sound but no amplification. It sounded like playing vinyl on a turntable without a phono pre-amp. Then I realized I didn't have biamp enabled. Once I did that, the speakers came to life.


My question is I would have figured I still get some normal sound with bass/treble/volume from the speakers without biamp enabled. So I'm wondering if the biamp setup is actually working. Can someone clarify this for me?


Thanks!

Depends how biamp is set up in the AVR. No, the manual won't specify...

It is either...

A throwback to non-powered subs, which the biamp portion is beholden to the internal crossover chosen(and not optimal for anything...that isn't a subwoofer)

Or...

Full range transmitted to the tweeter and woofer...which this is a complete waste of time.

Since it all comes off one power supply, it doesn't matter how it is configured internally, it is still a waste of time.

I actually did the "bi-amping" once with a Yamaha 6080(6180?)...

Had a Polk RM series sub with two pairs of binding posts(never removed it to see the inside...)

Anyway. The Yamaha was beholden to the internal crossover, as you could readily tell a difference between a 40hz, 80hz and 200hz crossover.

Yeah, it's a waste of time. Here's an analogy. Let's say you are towing a boat and your car doesn't have enough power to pull it up a hill. Bi-amping this way is like using that same car to pull the boat but adding a second tow hitch, and thinking that will get you up the hill.