Most of us come across these “2.1/3.1/5.1” markings on each speaker packaging, yet we don’t usually pay any attention to it. We generally ask if it has a USB slot, an FM station and a Bluetooth capability and eventually settling for the cheapest one available. Some decide to buy based on size and design of the speakers, others, who know what they are looking for, would look for “PMPO” and the wattage of the speaker.
Before we explain on the markings, let us learn something about speakers. Every speaker has its own range of frequencies, from a sub-woofer (very low frequencies), woofers (low frequencies), mid-range speakers (middle frequencies) to tweeters (high frequencies).
For a bass speaker it has a wide voice coil, compared to a mid range speaker & to a tweeter. The wider the voice coil the lower the frequency it generates & the thinner it gets, the higher the frequency. The size of the magnet and type of material used for the diaphragm & design of panel enclosure also affects the sound a speaker makes.
Now, let us explain what the markings mean.
The basic stereo system- 2.0 consist of two channels of sound (left & right) paired by stereo speakers. When you incorporate a separate sub-woofer (.1) along with the speakers it will now become a 2.1 channel system.
Here are some speaker channel system that you might notice while browsing around in our stores:
- A 2.1 channel system has 2 separate speakers & one sub-woofer. One in front right, one front left & one sub-woofer.
- A 3.1 channel system has 3 separate speakers & one sub-woofer. One in front right, center speaker, one front left & one sub-woofer.
- A 5.1 channel system has 5 separate speakers & one sub-woofer. Its placement is one in front right, one center speaker, one in front left & a sub-woofer. Additional two surround speakers at both rear-left & right.
- A 6.1 channel system has 6 separate speakers & one sub-woofer. Its placement is one in front right, one center speaker, one in front left & a sub-woofer. Two surround speakers at both rear-left & right and one additional speaker at center rear.
- A 7.1 channel system has 7 separate speakers & one sub-woofer. It uses the conventional 5.1 channel system with additional two side speakers-left & right.
We hope you learned something new today.