Howtosignalprocessing
- Which is better Butterworth or Linkwitz Riley?
- What is a Linkwitz transform?
- What is crossover circuit?
- What is a Butterworth crossover?
Which is better Butterworth or Linkwitz Riley?
The Butterworth has the sharpest initial cutoff, and a +3 dB sum at crossover. The Linkwitz-Riley has moderate rolloff and a flat sum. The Bessel has the widest, most gradual crossover region, and a gentle dip in the summed response. All responses converge at frequencies far from the design frequency.
What is a Linkwitz transform?
A Linkwitz transform is a mathematical operation that changes the effective F and Q to different values. Typically, this is used to lower F to get more low bass output, or to lower the Q to make the box behave like a larger box.
What is crossover circuit?
The primary purpose of the crossover circuit in a loudspeaker is to split an incoming audio signal into frequency bands that are passed to the speaker or “driver” best suited. For example, in a two-way system a crossover circuit will pass low frequencies to the woofer and high frequencies to the tweeter.
What is a Butterworth crossover?
It is also known as a Butterworth squared filter. A Linkwitz–Riley "L-R" crossover consists of a parallel combination of a low-pass and a high-pass L-R filter. The filters are usually designed by cascading two Butterworth filters, each of which has −3 dB gain at the cut-off frequency.
