Yeah I think this guy is talking about just pumping more power in his speakers. problem is that it requires a huge jump in power to make a big difference in volume. You can't acheive this with bi-amping. Even if you could it would not be the way to go. For high volume needs I suggest sensitive speakers or pro-audio level. You could also go the custom audio route of myself and TLS Guy.
Science is our friend don't forget that.
Yes, we have addressed this issue many times.
I summarized the issue two months ago. This covers all the basses.
This question comes up eternally. So what are the pros and cons of biamping. First there is biamping via the speakers internal crossovers, and there is biamping with active electronic crossovers ahead of the amplifiers.
Advantages of biamping.
1). Reduces insertion loss of passive crossovers. This is negated unless active crossovers are used.
2). Reduces distortion and problems of reactance of passive crossovers, especially with lower crossover points. Again this advantage is only gained with active crossovers.
3). Increases power available to the speaker as long as the crossover point is around 400 Hz. 400 Hz is the area of the power divide. As the crossover point is raised the power advantage is rapidly lost, as the power required to produce those frequencies rapidly diminishes.
4). Theoretically biamping can reduce inter modulation distortion. However this is a non issue with competently designed amplifiers.
Disadvantages of biamping.
1). Requires a complex electronic crossover that has to be designed to the drivers just like a passive one. So advantages of biamping are only truly realized with a design done from the ground up with active crossovers.
2). One amplifier with twice the power versus two amps of half the power biamped is less likely to clip. The reason is that program is variable. Say we have one 200 watt amp versus two one hundred watt amps biamped at 400 Hz. If the program calls for 150 watts below 400 Hz, then the HF amp sits idly by while the LF amp clips. The 200 watt amp might well not have clipped.
3). If different amps are used there is great opportunity to introduce serious phase problems at crossover, unless the amps phase responses are known and corrected.
4). Generally costs will be increased as well as complexity.
In general the advantages of biamping are only realized with crossover points below 500 Hz using active crossover as part of a total design solution.
The reason being that passive crossovers in the 1.5 to 5 kHz range are far less deleterious than passive crossovers below 500 Hz. In my view crossover points below 350 Hz are best accomplished with active crossovers.
This comes up so often, I wonder if we could make this post a sticky.
