In electrodynamic heads that are used in subwoofers, there are models equipped with two voice coils. Such speakers are no different in appearance from ordinary speakers, and their only difference is the additional terminals for connecting the second winding. The material, number of turns and electrical parameters of the sound windings are the same. Usually subwoofers have a winding resistance of 4 or 2 ohms, but there are heads with other coils.
It happens that one subwoofer model is offered in two versions: with one sound winding or with two.
Connecting a two-coil subwoofer
The double winding of the sound system allows the subwoofer to be connected in several different ways:
- Consistently
- Parallel
- Regardless
Each connection method has its own advantages and disadvantages. In electrical circuits, it is rare that if one electrical parameter is improved, other characteristics will also improve. So, with increasing power, distortion will definitely increase. This also applies to the connection of the windings of the dynamic heads. Distortion increases as the resistance of the audio winding decreases. Many note that as the resistance decreases from 8 ohms to lower values, the power increases, but the low frequencies become somewhat smeared and the bass loses its clarity. The connection diagram for a subwoofer with two coils to one amplifier has only two options.
How to connect 2 coil sub
Independent connection of a subwoofer with two coils implies the use of two low-frequency amplifiers. For such a connection, an amplifier with several channels is used. Each sound winding is connected to its own channel. When connecting a subwoofer with 2 coils, an important rule must be observed. You cannot use only one winding without connecting the second. In this case, there will be a loss of sound pressure and the sound quality will be very poor. Many people are interested in how to connect a 2 ohm sub. This resistance of audio inductance allows you to get maximum output power, but some car enthusiasts connect two subwoofer windings in parallel.
As a result, the resistance is equal to 1 Ohm. This is a very dangerous limit, since with such resistance the damping coefficient is greatly reduced and distortion increases. In addition, the lower the resistance of the speaker system, the more the semiconductor elements of the amplifier's output stage will heat up. Some low quality amplifiers that do not have effective protection circuits may fail when driven into a 1 ohm load.
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Standard car speaker systems usually reproduce an insufficiently wide range of sound frequencies, especially at the low end. You can correct the situation by installing a subwoofer, which helps increase the expressiveness of the sound of bass instruments.
After purchasing the subwoofer you like, you need to properly connect it to the on-board network and car radio. This procedure may seem complicated, but in fact, almost anyone can perform it, even if they are not familiar with the basics of electrical engineering.
So, let's try to understand this issue in order to avoid mistakes and avoid some pitfalls.
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Comments 72
Is it possible to connect CT 12 (2+2) at 2 Ohms to Zeus 1.1000 (has 2 pairs of terminals, but it is not known whether they are duplicated or independent)? Thank you
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