Usually when a subwoofer is integrated into a system, the lower octaves are not going to the speakers anyway. In my setup, both my pre amp and power amp are connected to a powered subwoofer and the speakers are connected to the power amp, not the subwoofer. In a sense I am biamping the subwoofer, but the lower frequencies are not produced by the speakers. My speakers are very efficient 92db and are rated to about 35-40hz in the lower region, but the lower frequencies are produced by the subwoofer. The speakers are producing anything above 100hz.
Speaker Effeciency and Bass Production
How much speaker efficiency is gained if the bottom two octaves or so don't need to be produced? I'm considering trying an SET or OTL amp but am wondering about the ability of these amp types to drive my speakers (Opera Quinta; 89db efficiency and 6 ohm nominal impedance; 6-8 ohms from 100Hz up). I am using a pair of corner placed subwoofers which can easily produce the lower 2-3 octaves. So the question is if the amps driving the main speakers don't have to produce anything below 100Hz or so, then is the ability to use them on my main speakers more doable? The room is fairly large, but I sit only around 10 feet from them.
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- 14 posts total
- 14 posts total