# How do you calculate passive crossover?

Passive Crossover Capacitor and Coil Calculator

## How do you calculate passive crossover?

Passive Crossover Capacitor and Coil Calculator

1. Order (6 dB per Octave) (diagrams) L1 (mHy) = (1000 x Impedance) / (6.283 x Crossover Frequency) Coil – L1. Millihenries (mHy)
2. Order (12 dB per Octave) (diagrams) L2 = L1 x 1.414. Coil – L2. Millihenries (mHy)
3. Order (18 dB per Octave) (diagrams)

## What is a 4th order crossover?

4th-order Linear-Phase: (A seldom used filter that is constructed with an asymmetrical filter topology.) Produces a -6 dB crossover point to achieve a nearly flat amplitude response with moderate ripple. The summed group delay produces a moderate bump just below the crossover frequency.

How do you calculate speaker crossover frequency?

In technical terms, the crossover frequency is found by using the -3 decibel (dB) point from the output of a crossover circuit. In electrical power terms, the 3dB volume reduction point is the frequency at which the power to the speaker is reduced by 1/2.

### What is the difference between active and passive crossovers?

There are two basic kinds of crossovers: active and passive. Passive crossovers don’t need power to filter the signal as desired. Active crossovers require power and ground connections, but give you much more flexibility and fine-tuning control over your music.

### What are crossover orders?

​ Crossovers are described as having an ‘order’, 1st order, 2nd order, 3rd and 4th. The number denotes the strength of the filter, with 1st being the weakest and 4th the strongest.

What is a high pass crossover?

High-Pass Crossover A high pass crossover allows high frequency signals in the 5kHz-20kHz range (generally) to be passed to the speaker/tweeter while the lower frequency signal is blocked.

## What is a 3rd order crossover?

A third order crossover uses a triple filter, etc. The higher up you go, complexity increases. Also, the higher the order, the more sharply that the frequency rolls off in this process of frequency filtration. A first order crossover rolls off at 6dB per octave, a second order at 12 dB, a third order at 18dB.

## Do 3-way speakers need a crossover?

Too much or too little combined output and the balance of the sound reproduction will be thrown off. Because of this, how the crossover is set up is crucial to the overall sound quality of a 2-way or 3-way speaker system.

What is the fourth order crossover phase shift?

• Fourth Order crossover phase shift = 360 degrees no phase shift). Additional Information… • Although speakers are rated for a certain impedance (i.e.- 4 or 8 Ohms), the actual impedance curve may vary with frequency (speakers have inductance).

### What is a crossover calculator used for?

This crossover calculator can be employed for the calculation of passive filters (first, second, third, and fourth order) in two-way and three-way crossover networks. It will also create a circuit diagram and provide the component values you require.

### What is a 2 way passive crossover?

A combination of the right capacitors and inductors creates filters that only allow the right range of frequencies to go to the correct speaker (or driver). When two speakers are involved, this is known as a 2-way passive crossover design. For three drivers, it’s known as a 3-way passive crossover.

What is the Order of crossover on a speaker circuit?

First Order Crossover (6db/octave) Second Order Crossover (12db/octave) Third Order Crossover (18db/octave) Fourth Order Crossover (24db/octave) Zobel Circuit (Impendance Stabilization) L-pad Circuit (Speaker Attenuation)