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Comparison JBL Control SB210 vs Jamo SUB 200

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JBL Control SB210
Jamo SUB 200
JBL Control SB210Jamo SUB 200
from $1,076.00
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from $275.00
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Mount typefloorfloor
Typepassiveactive
Acoustic designbass-reflex typeenclosed
Featuresconcerthome
Specs
Power400 W200 W
Sensitivity95 dB
Max. sound pressure level122 dB
Impedance8 Ohm
Frequency range48 – 120 Hz40 – 150 Hz
Number of speakers2
Speaker size10"8"
Functions
Phase adjustment
Level adjustment
Adjustable crossover
Connectors
Inputs
 
high level (terminals) /2/
RCA (line)
high level (terminals) /2/
General information
Waterproof
MaterialMDF
Dimensions (HxWxD)360x590x570 mm330x230x430 mm
Weight17.1 kg8.4 kg
Added to E-Catalogmarch 2016april 2008

Type

— Active. Subwoofer with its own built-in amplifier. This allows you to connect the device to the signal source directly, without any additional external amplifiers. If the connection is made through a common speaker amplifier, the active subwoofer reduces the load on it, which has a positive effect on the volume and sound quality of the entire speaker. The built-in subwoofer amplifier itself is selected in such a way as to optimally match the characteristics of the speakers used. In addition, active subwoofers often come with their own fine-tuning tools that allow you to achieve optimal sound in your room without moving the subwoofer itself. The disadvantages of an active subwoofer are the need for a separate power connection and the high price.

— Passive. Subwoofer without its own built-in amplifier. Such a device requires connection to the signal source through an external amplifier, the characteristics of which should optimally match the characteristics of the subwoofer (see Power, Impedance). The advantage of passive subwoofers is their low cost.

Acoustic design

Closed type. The simplest type of construction: a closed (sometimes hermetically sealed) case with a speaker placed on the front panel. It is believed that such subwoofers have low sensitivity, which, however, is offset by high sound transmission accuracy and low distortion.

Phase inverter type. In the cases of such subwoofers, a tube is installed that has an outlet to the surrounding space. The length of the tube is chosen so that a signal comes out of it, inverted in phase relative to the signal from the front of the cone (in other words, from the main speaker). This improves the sound of the subwoofer and enhances the sound pressure. The disadvantage of a phase inverter is the additional noise from the sound stream in the tube.

With a passive radiator. A design similar to a phase inverter (see above) in terms of purpose and principle of operation, however, instead of a tube, such subwoofers use the so-called passive emitter. In fact, it is an ordinary speaker, devoid of a coil and a magnet and playing the same role as the phase inverter tube. The use of a passive radiator allows you to get rid of the noise of the air flow, characteristic of phase inverters.

Features

Home. General purpose subwoofers not covered by any other specialty (see below). The name “home” quite accurately describes their main purpose, but, of course, the matter is not limited to home acoustic systems: such “subs” can be used in cafes and bars, on skating rinks and rollerdromes and other public places.

Concert. Subwoofers designed for use at concerts and other mass events are distinguished primarily by high power — hundreds or even thousands of watts. This allows you to cover large areas with powerful rich sound.

Studio. Subwoofers designed for professional audio applications, primarily in recording studios. They are also called "monitors" (however, this is the common name for all studio speakers). Differ in extremely high fidelity of a sound transmission.

Landscape. Models designed for outdoor installation — for example, in the courtyard of a private house, on the territory of an entertainment complex, etc. The most noticeable difference between such models and classic home ones is their appearance: landscape subwoofers must fit into the design of the area, so they are often “disguised” as a stone, flower pot, ground lamp, etc. In addition, the cases of such speakers are well protected from moisture, dust and other adverse factors associated with being outdoors. And the placement method m...ay involve not only simple installation on the ground, but also digging into the ground, depending on the model.

Note that the use of a subwoofer for other than its “native” purpose is technically possible, however, usually, it is not justified: a concert model in the house will be redundant, an ordinary home “sub” can be put outside only until the first rain, etc.

Power

Rated power of the subwoofer. Technically, this is the highest average (rms) sound power at which the device can work normally (without sound distortion and damage to components) for an unlimited time. Simply put, the more powerful the subwoofer, the louder it is. The choice for this parameter depends primarily on the size of the space / room that is planned to be covered; detailed recommendations for different situations can be found in special sources.

Also, the power is directly related to the characteristics of the amplifier used with the subwoofer. For active subwoofers (see "Type"), this item actually indicates the nominal power of the built-in amplifier; the speaker itself can be more powerful, but it doesn't matter anymore. For passive models, the power rating corresponds to the highest amplifier power that can be connected to the speaker without the risk of damaging it at high volume.

Sensitivity

The sensitivity value determines the volume of the subwoofer when an external signal of a certain power is connected to it. The higher the sensitivity, the louder the sound will be, with equal signal power and impedance.

Max. sound pressure level

The highest sound pressure level that a subwoofer can create, in other words, the volume that it produces at its maximum power level. This parameter is measured in the same way as any noise level - in decibels; since the decibel is a non-linear quantity, it is easiest to evaluate loudness using comparative tables. So, the most modest modern subwoofers are capable of delivering up to 95 – 100 dB, this is comparable to the volume of a subway car or a chainsaw. In the most powerful ones, it can exceed 130 dB - this is louder than an airplane on takeoff, a long stay near a subwoofer operating at full power can lead to hearing damage.

Note that sound pressure and sensitivity (see above) are fundamentally different characteristics, although they are measured by the same units.

Impedance

Subwoofer AC impedance. This parameter matters primarily when connected to an external amplifier: if the impedance is lower than that of the amplifier, sound distortion is possible, if the impedance is higher, the subwoofer may sound quieter than we would like.

Frequency range

The range of audio frequencies reproduced by the subwoofer. As a general rule, the wider the frequency range, the richer the sound and the more detail the speaker can convey. However, it is worth remembering that subwoofers as a class are designed for low and ultra-low frequencies in the range from 20 to 150 (sometimes 200) Hz. Therefore, in fact, a significant difference in sound is noticeable only with a large difference in the reproducible ranges (for example, 20-200 Hz and 50-150 Hz).

Also, do not forget that an extensive frequency range is not yet a guarantee of high-quality sound; and in some cases (for example, if the main speakers of the speaker also cope well with low frequencies), it may be completely redundant.

Number of speakers

The number of individual speakers in the subwoofer design. The vast majority of modern subwoofers have a single speaker; therefore, it is customary to indicate this number only when it is greater than 1. The speakers themselves usually have the same dimensions and characteristics.

Such "multi-charge" in a subwoofer can serve different purposes. Most often, the manufacturer thus provides high sound power without a significant increase in the dimensions of the speaker — several small speakers are easier to fit into a compact case than one large one. And with 3 or 6 speakers, their diffusers can be located at an angle of 120 ° to each other, thus ensuring uniform sound radiation in all directions.

Note that the use of several speakers significantly affects the cost of the column, this feature is typical mainly for high-end models.
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