Can you get flat response with Linkwitz-Riley cross-over?

2-Way Linkwitz Riley Crossover This unit will provide a completely flat frequency response across the crossover frequency, with the signal from both filters remaining in phase at all times.

1. Which is better Butterworth or Linkwitz-Riley?
2. What is 4th order crossover?
3. 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 4th order crossover?

An electric 4th order crossover is four components per driver and is designed to achieve a 24dB/Octave cutoff. Since most speaker drivers are designed (or incidentally limited) to have a cutoff at the end of their desirable operational bandwidth, a proper crossover design incorporates that cutoff.

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.