What is a portable speaker

Compact portable devices that can play music are not an invention today. As soon as something appeared that could play sound, a person immediately wanted to take this device with him in order to be able to enjoy music anywhere.

Ancestors of modern portable audio systems can safely include a barrel organ, various music boxes, as well as gramophones.

But then technological progress began to develop so rapidly that we stopped noticing how the radios were replaced by radios, those were replaced by radio tape recorders, then CD players appeared, and they already ceased to be visible on store shelves.

The era of portable music playback devices has arrived. These devices are completely different from their predecessors. Yes, they can play music from some carriers, but this is not the main thing. They should voice what is being played on a smartphone or mp3 player.

It's clear. Now smartphones have even schoolchildren. And their memory, even among the cheapest representatives, can accommodate more than one CD. So in demand were systems that can connect to a smartphone and with good quality, loudly voice its playlist.

Specifications

What is a portable speaker? In fact, this is a speaker that is housed in a separate housing. The main function of such a column is to receive and sound the audio signal coming from a smartphone or player. The signal is transmitted via Bluetooth or a wired connection. Usually, this functionality is enough.

Budget speakers are equipped with only one speaker, and therefore work in mono mode. More advanced and expensive already have several speakers, which allows them to work in stereo. You can meet devices that consist of a pair of speakers, they can be put in different directions, which enhances the stereo effect.

Choosing a column for yourself, you need to focus on the following indicators:

Output power. The sound volume of your system depends on this parameter. However, the dependence is not direct, no less important is how many speakers, their size, as well as the frequency. That is why two speakers with the same power can sound at different volumes.

To make it easier to figure out, look at the specifications:

1.5-2 W - these speakers do not go far from the smartphone in volume, but they are light and compact.

15-20 W - in such a model, the sound is like a regular TV or a simple computer speaker system.

Power greater than 40 watts is the volume of the car speaker system.

But focusing on power, know that it affects the cost of the device, its size and, accordingly, weight. And the battery life of powerful speakers is not long. Although they may not work completely autonomously. Often, the "most powerful" work only from the mains.

Nutrition

The most common speakers that work on batteries. They make it possible to refuse the outlet, but only for a long time not all models can do without recharge.

When choosing a battery system, pay attention to how long it can go without charging. This duration depends on the operating mode, as a rule, the technical instructions indicate the average speaker volume and disabled additional functions.

Minimum and maximum frequency values They talk about how efficiently and fully the system can reproduce the sounds heard by the human ear. A person distinguishes sounds with a frequency from 16 to 20,000 hertz. The closer the lower indicator to the minimum value, and the upper to the maximum, the better the sound from the system. If the lower indicator is in the range of more than 50-60 hertz, the system will not be able to reproduce bass quality. They will simply be lost, since they sound at a frequency of 40 hertz.

Connection Methods

As a rule, most of the speakers have the ability to connect to the main device without resorting to wires, throughBluetoothorNfc. There are models that can connect to the Internet throughWifiand be controlled using a special program on a smartphone.

If you purchase a column with a Bluetooth connection, be sure to see which version of the protocol the device supports. The higher the supported version, the faster and faster the connection will be, and the energy consumption will be less. Low versions of the protocol provide ample speed so that music in the audio format of an audio CD can flow freely to a speaker. But here you need to understand that the maximum quality will only be in ideal conditions, with a small distance and the complete absence of interference. Therefore, it is better to have some stock.

If you are considering a column with an NFC connection, then you need to keep in mind that although this connection does not require wires, it can only work at short distances. You will always need to keep your smartphone next to the speaker. Yes, and such a data transfer protocol is not supported by all smartphone models.

Naturally, in addition to wireless connection options, you can use the classics. You will need a cable with a 3.5 mm jack connector. And the column for such a connection must have an AUX port.

Column Assignment

Portable speakers are designed to work with portable portable devices, such as players, mobile phones, laptops, tablets. The need for such systems arises in cases where the capabilities of the device are not enough to reproduce music in a high-quality manner.

The speaker system is able to improve the characteristics of the main device, but at the same time leaves it mobile. The column fits quietly in a small bag, runs on batteries. And most importantly, it has much more extensive capabilities for playing music or movies.