Comparison Greenwave PS-1000AL vs Sven PS-460

The presence of a passive radiator in the design of the speaker system.

Such an emitter is a speaker cone that does not have its own coil and magnet — in other words, it does not produce sound itself, but only vibrates from the sound of other speakers. Like the phase inverter (see above), this part is intended to improve sound pressure and sound depth, especially at low frequencies; at the same time, the advantage of a passive radiator is the absence of a tube, due to which the design is simpler and more compact than with a phase inverter.

The total power of all channels of the speaker system. The higher the power, the larger the size of the room in which the audio system can be used, however, more powerful portable speakers usually have larger dimensions and weight.

— Speakerphone. The ability to use portable acoustics as a hands-free system for a mobile phone. In this mode, the acoustics are connected to the device via Bluetooth, and the voice of the subscriber at the other end of the line is output not to the phone speaker, but through the speakers of the acoustic system. This is often more comfortable than holding the phone to your ear; in addition, the speakerphone is useful if several people need to participate in a conversation.

— NFC. NFC is a short-range wireless communication technology (about 10 cm). It allows for many uses, but in portable acoustics it is usually used as an addition to Bluetooth, which makes it easier to set up a connection. For example, a smartphone with an NFC module can simply be brought to a speaker with the same function — and both devices will automatically recognize each other, while the user will only have to confirm the connection.

— Multipoint. A technology used in Bluetooth models that allows the speaker to connect to multiple devices at the same time. Thanks to this, you can, for example, listen to music from a laptop, and when a call is received on a mobile phone, switch the acoustics to a conversation. This technology has its own characteristics for different manufacturers, and therefore, if the multipoint function is critical for you, you should separately clarify the details of its operation in the selected...model.

— Synchronization of speakers. The model supports the ability to synchronize the operation of several speakers connected to one signal source. This solution allows you to realize truly stereo sound, improve the quality and power of sound reproduction, as well as expand the stereo panorama. The only thing is that both speakers must support the appropriate connection type. Different brands may have their own speaker interconnection technologies (JBL Connect, JBL PartyBoost, Sony Party Chain), or maybe a universal TWS.

— Mobile application. The ability to operate the functions and settings of portable acoustics through a mobile application for a smartphone or tablet. Communication between the device and gadgets is usually carried out via the Bluetooth wireless protocol. The proprietary software may provide tools for flexible sound settings (equalizer, bass boost, etc.), managing wireless connections, selecting a sound source, etc. Also, through a mobile application, it is often possible to update the firmware of portable acoustics.

— Vibrospeaker. A kind of portable acoustics that uses external objects as a sound emitter — tables, window panes, etc. In simple words: in order for such a column to sound, it must be fixed on another object. However not all of them require fixing on an external object — some practically do not differ from ordinary portable acoustics, and the “vibration” function is provided as an additional option in them.

— Light effects. Such effects can be different — from the simplest set of light bulbs flashing at a constant frequency to advanced colour and music systems that produce multi-coloured patterns in time with the music being played. Anyway, this function carries more entertainment meaning and does not affect the sound of the device.

— Mini-Jack output (3.5 mm). A connector designed to output an audio signal from a speaker system to another device — for example, a stationary audio system with a mini-Jack (3.5 mm) line input. Note that the signal level at this output is low, and it is impossible to connect passive acoustics directly to it — you need to use an amplifier.

— For headphones (miniJack 3.5 mm). A specialized headphone output, made in the 3.5 mm mini-Jack format — this is the standard used by the vast majority of modern "ears". Headphones can come in handy in a situation where loud sounds are undesirable (for example, in a living room at a later time) — or vice versa, in noisy environments where the sound from the speakers is simply not heard.

— Hours. A traditional clock is a device for displaying time. They are not a "vital" function for portable acoustics, but in some cases it is faster to look at the time on the speaker's dial than to look for another clock.

— Alarm clock. Classic alarm clock — a sound signal at a user-defined time, which can be used both for getting up and for other purposes. Must be combined with a watch (see above). The specificity of alarm clocks in portable acoustics is that they allow you to use a certain song or even a radio station as a signal.

- LCD display. Such a screen makes device management more intuitive: it can display the operating mode, equalizer settings, battery level, etc.

- Remote control. Portable sound system can be equipped with wireless remotes operating in the IR range. The advantages of such equipment are obvious: the system can be controlled from a distance, without the need to approach it every time.

- Handle / strap. The presence of a handle or strap makes wearing the speaker more comfortable. So the handle is used mainly in large stereo speakers and makes them look like boomboxes ( radio tape recorders) of yesteryear. The strap can be used both for large speakers and for miniature ones, which allows you to hang them on your hand, on elements of a backpack, etc.

- Flashlight. Such a function most likely will not replace a high-end specialized flashlight. The power of the built-in flashlight is usually enough to illuminate at least a distance of 2 - 3 meters, and models with a bike mount (see above) can even play the role of a headlight (although, again, they are inferior to specialized bicycle lights).

— Carabiner A latch-like device that allows you to attach the speaker to items of clothing, backpack straps, etc.

- Sucker. Such a device makes it possible to securely fix the column on a flat surface and easily remove it from there. Suction cups are often equipped with waterproof models that can even be used in bathtubs and showers.

- Bike mount. A special device designed to fix the column on a bicycle - usually on the handlebars, at the user's fingertips. Such models are often complemented by a speakerphone function that allows you to talk on the phone without taking your hands off the steering wheel.

- Battery powered. Powered by replaceable elements (in the form of batteries or accumulators), usually AA or AAA. This option makes the speakers more autonomous - and, unlike the built-in battery, sockets are not required for such models, the main thing is to have a supply of fresh batteries on hand. At the same time, the batteries themselves are usually not included in the kit, they must be purchased separately; at the same time, the capacity of disposable batteries may turn out to be different (usually it depends on the price category), and elements in the form of batteries are expensive.

Theoretically, a higher capacity allows to achieve greater battery life, but in fact, the operating time also depends on the power consumption of acoustics — and it can be very different, depending on the characteristics and design features. So this parameter is secondary, and when choosing it is worth paying attention not so much to the battery capacity, but to the directly claimed operating time (see below).

Operating time of a portable audio system without connecting to an external power source (network or USB port, depending on the capabilities). Note that manufacturers tend to indicate battery life in their specifications under optimal conditions for energy saving: at low volume, without using additional functions, etc. Therefore, in fact, this indicator may be noticeably lower than the claimed one, and speakers with a long operating time will not sound at full volume for the specified hours.

The main material used in the construction of the hull.

— Plastic. Inexpensive and at the same time very convenient material for portable acoustics. Plastic easily accepts a variety of colours and complex shapes; the latter not only gives space to designers, creating speakers of unusual design, but also allows you to apply various tricks to improve sound quality. In addition, this material is not afraid of moisture. It is believed that the strength of plastic is not very high, but this disadvantage is easily compensated by the large thickness of the material or the use of special impact-resistant grades. Therefore, plastic is found in all categories of speakers, from low-cost to high-end and from "home" to extreme, designed for an active lifestyle and frequent outdoor use.

— Metal. The metal gives the speakers a solid and expensive appearance, and on the practical side, this material is remarkable primarily for its high strength. At the same time, it is much more expensive than plastic — also due to the fact that manufacturers have to use shock-absorbing inserts and other tricks to avoid an unpleasant "metallic" coloration of the sound; and the mentioned strength is most often not critical. Therefore, metal cases are much less common than plastic cases, mainly in rather expensive portable acoustics.

— Silicone. Relatively soft and elastic mate...rial, not afraid of moisture. Suitable for creating dust, moisture and shock-proof speakers; in addition, it is convenient for models with suction cups (see above) — the part of the body that has the appropriate shape can play the role of a suction cup directly. At the same time, silicone has no other noticeable advantages over plastic, so its use is limited to specific models of portable acoustics.

— Rubber. For a number of reasons, rubber is considered well suited for models with dust and water protection, almost all speakers made of this material are protected. In addition, due to the softness of the rubber provides good shockproof properties.

— Wood. Wood is considered the optimal material for speaker cabinets in terms of acoustics. However, the specificity of portable speakers is such that this moment is not decisive in this case, and the main advantage of wooden cases over others (primarily plastic ones) is their aesthetic appearance, with characteristic colours and patterns. In addition, many consider wood a more pleasant to the touch and “natural” material. But this option does not have any special practical advantages, despite the fact that it is quite expensive. As a result, portable speakers with wooden cases are rare — they are mostly designer models created based on the original design.