Am I wasting money on the theory of Bi-amping?


As a long time audiophile I'm finally able to bi-amp my setup. I'm using two identical amps in a vertical bi-amp configuration. 
 

Now me not fully understanding all of the ins/outs of internal speaker crossovers and what not. I've read quite a few people tell me that bi-amping like I'm doing whether it's vertical or horizontal bi-amping is a waste since there's really not a improvement because of how speaker manufacturers design the internal crossovers. 
 

Can anyone explain to a third grader how it's beneficial or if the naysayers are correct in the statement?

ibisghost

@ibisghost 

Depends on your speakers and your amplifier.  

In my case it was worth the effort in a previous system.  

I had floorstanders with dual 6-3/4 inch woofers that had their own set of speaker termminals.  They had another set of terminals for the 4-1/2 inch midrange and 1 inch tweeter.  The internal crossover managed the signal between midrange and tweeter.  

With my 80 watt integrated amplifier driving the entire speaker using the supplied brass jumpers, the system ran out of power sooner than I liked- sounded strained, harsh and slightly clipping in the midrange and bass punch reached its peak.  

I then used the pre-outs of the integrated to connect to a 150 WPC power amp of the same brand, same gain, and connected it to the woofer terminals.  

I connected the speaker terminals of the 80 watt integrated amp to the midrange+tweeter terminals.  

Wow what a change.  Bass punch and response was incredibly powerful and beyond my needs, never ran out of gas.  The midrange never ever sounded strained or clipped, could crank that system as high as I could ever want.  

So in that case the original amp was underpowered for the entire speaker at the volume level I preferred.  Also since the speakers had a midrange / tweeter setup and had separate jumpers for the woofers, driving them with a separate amp was worthwhile.  

I would never find biamping worth the effort with an amplifier just for a tweeter- they consume such a small amount of power.  I would also not consider biamping a speaker without dual sets of jumpers and having to bypass the internal crossovers.  Opens up a can of worms not worth the effort.   

 

fthompson251 is doing it right ....   with speakers AND electronics designed with bi-amplification in mind.   If your gear isn't then it's probably a wasted effort 

Depends on amps and speakers.

If you have a 3 or more way where only fairly deep bass can be isolated to one amp, maybe. I think you would need to be pushing your system hard for it to matter.

I have two NAD M23 amps and speakers are Paradigm Founders 100F. 
 

I am using them in a vertical bi-amp configuration. 
 

I have four subwoofers handling the very low end. So the amplifier shouldn't be stressing out in any way. Even when I had just the one M23 amp connected using both speakers it sounded phenomenal. That's when I decided I wanted two. I loved it!
 

The amps can be bridged but I felt this could degrade the quality of the amp and chose the buying of two amps instead kind of like a monoblock setup. I've usually used monoblock amps for my system but NAD doesn't make a monoblock amp in this M23, even though it can be bridged I just felt bridging could degrade the quality l heard when connected in two channel. 
 

I've never tried bridging these amps but based upon Audioholics testing said it did kind of decrease the quality over running two channel mode.   
 

I'm just trying to learn more and appreciate the feedback knowledge!