Comparison GT Racer X-6005 vs GT Racer B-517L

— For the leader. The "director's" chair is designed not only to provide comfort to the leader, but also to emphasize his status and authority. Therefore, such models usually have a massive structure and larger dimensions than conventional chairs for staff, and also use more expensive materials (primarily leather and its analogues) — which ensures an appropriate solid design. Many executive chairs also have a specific shape with a slightly "failed" seat, headrests, etc.; all this is designed to increase the comfort of the seated.

— For staff. Armchairs designed primarily for ordinary office workers. On the practical side, for the most part, they are less comfortable than executive models — in particular, they are rarely equipped with head restraints (see below) and lumbar support. At the same time, the key difference lies in the fact that in this case the emphasis is not on design, but on practicality. So, the design uses mainly inexpensive, but sufficiently durable materials (fabric, mesh, etc.), the weight of the chairs is small, which makes it easy to move them from place to place, and the shape of the seat and armrests is usually chosen in such a way that It was convenient for the seated person to get up and sit down often. However, models for staff are sometimes so good and functional that they can be safely attributed to managerial chairs, so such options can have a dual purpose — for the ma...nager and staff.

— For visitors. The specificity of chairs of this type is that they, usually, are constantly in one place, while they are used by different people who have to sit for a relatively short time. Therefore, such models most often have bases in the form of legs or skids (see "Base design"), and their design as a whole is quite simple and rarely provides any additional adjustments. Nevertheless, in this class there are both simple products made of inexpensive materials that provide a minimum of comfort, and very solid-looking furniture, designed for richly furnished offices and not inferior in quality to the "director's" chairs.

— Children's. Armchairs designed for children have appropriate design features — reduced dimensions and a specific shape of the seat and back. In addition, among such models there are options in a rather bright original design — with colour drawings, an unusual shape of the backs and seats, etc.

— Gamer. Models created specifically for gamers stand out with a characteristic "aggressive" design, hinting at the seats of racers and pilots. However, they are often as comfortable as real racing seats, and the equipment includes at least a Tilt mechanism, and more often a more advanced solution such as a multiblock or synchro mechanism (see above). In general, this is a fairly advanced type of chair — but not cheap, respectively.

A type of mechanism that provides various adjustments (see below).

— Permanent contact. A mechanism designed to ensure constant contact between the back of the seated person and the back of the chair. Accordingly, the adjustments available when using it relate only to the back, but the list of such adjustments is quite extensive: in height, inclination and depth of the back. At the same time, permanent contact is found mainly in inexpensive chair models.

— Freestyle. Also known as a permanent back support mechanism. Another fairly simple option, concerning only the adjustment of the back of the chair. The back and seat in such models are connected by a flexible plastic cover, which contains a spring; due to a special screw, it is possible to change the degree of compression of the spring, thus adjusting the degree of swing stiffness.

— Tilt(swing). Also known as Top Gun. A mechanism that provides the possibility of rocking back and forth, as well as adjusting the rocking stiffness; in addition, in most cases it also provides the adjustment of the seat height according to the principle of the piastres described above. The adjustment knob is responsible for two functions — gas lift control and swing blocking; rocking stiffness is usually controlled separately. This type of mechanism involves a rigidly connected back and seat.

— ...href="/list/897/pr-28623/">Deep Tilt(deep swing). A variation of the tilt mechanism (see the relevant paragraph), which, in accordance with the name, provides the possibility of a deeper swing. Simply put, in such a chair you can lean back very far, almost lie down. However the seat and backrest in such models are still rigidly connected to each other, and fixation is provided only in one position — vertical (working).

This option is typical mainly for products of the middle and higher price range.

— Freelock. Like the Tilt described above, this mechanism allows free swing and stiffness adjustment. In such chairs, however, fixation in one position is not provided — on the other hand, the backrest in them does not have a rigid connection with the seat and can be separately adjusted in height and inclination.

— Multiblock. In fact, it is an improved and supplemented version of the Tilt described above. Multiblocks not only allow you to swing and adjust the rigidity of the swing, but also provide the possibility of fixing the chair in four positions (instead of one). In addition, they are usually equipped with so-called “anti-shock effect”: when unlocking, the tilt of the chair does not change on its own, for this you need to apply a little effort. This prevents jerks and shocks to the occupant's body when the mounts are released.

— AnyFix. A kind of swing mechanism that allows you to fix the chair in any intermediate position — and not only in those specified by the manufacturer, as is the case with Tilt and multiblocks (see above). Provides maximum freedom in tilt adjustment, however, it is quite expensive.

— MultiFix. Another, along with AnyFix, is a kind of tilt mechanism that allows you to fix the chair in any intermediate position. In fact, from the point of view of the user, these mechanisms fundamentally differ only in name. Accordingly, the advantages and disadvantages of "multifixes" are the same: on the one hand, this is convenience in setting up, on the other hand, a higher cost than, for example, "tilts". Also note that the seat and back in such chairs are usually rigidly connected and lean together.

— Synchro mechanism. The name of this mechanism is due to the fact that the back and seat in it are synchronized in a special way: when swinging, they do not deviate in the same way, but in a ratio of 2:1. It is believed that this provides an anatomically optimal fit to the position of the human body when bending back. In addition, such mechanisms usually have several fixed tilt positions, rocking stiffness settings and an anti-shock system (described in detail in the “Multiblock” paragraph above). This option is considered one of the most suitable for high-quality "director's" chairs (see "Purpose").

— Asynchronous. The asynchronous mechanism assumes the presence of a back and a seat that can change the slope independently of each other; usually, both there and there several fixed provisions are provided. Such designs provide ample features for customization to individual preferences, but the customization itself is not as convenient as in most of the advanced mechanisms described above.

— Piastre. One of the simplest mechanisms, found mainly in low-cost-level models. Allows you to change only the height of the seat. The operation of the mechanism is based on the action of a gas lift — a sealed reservoir with a piston, where gas is pumped under high pressure. The gas lift is located in the support column of the chair, under the seat, and the handle is usually located on the side of this column, within reach of the person sitting, for adjustment. Pressing this knob unlocks the seat and you can adjust the chair as you wish – raise it up and let the gas lift push the seat up, or push it down and lower the height. When the handle is released, the seat is fixed in the predetermined position. Gas lifts are often used in conjunction with other options described below, and the “piastre” type includes only structures that do not have other mechanisms for adjustment — these are mainly low-cost-class chairs.

— React. Mechanism developed by Legett&Platt; React's specific feature is that it combines the rocking of the back with the movement of the seat back and forth. This, according to the creators, provides the most comfortable and at the same time natural movement of the body when swinging. Another interesting feature is that React does not require manual adjustment to the user's weight, the mechanism itself regulates the effort required for swinging. There are usually as many as 8 fixed positions. Armchairs with such a mechanism may outwardly resemble models for staff (see "Purpose") — in particular, they have a back and seat clearly separated from each other — however, with all its advantages, React is not cheap, as a result of which Still, it's more for leaders.

– Relaxing Active System. Another high-end "anatomical" movement, designed for the most comfortable and natural movement; used mainly in furniture from the company Elano. Like the React described above, it combines the swing of the back with the movement of the seat back and forth; in addition, it may also be possible to change the inclination of the headrest depending on the inclination of the backrest. At the same time, chairs with the Relaxing Active System are usually made in a solid classic design, using leather, which makes them look rich and representative, but they also cost accordingly.

— Aircraft. A variation of the rocking mechanism used primarily in AMF chairs. In chairs with this feature, the place of attachment of the seat to the stand is not located in the centre of the seat, but closer to the front edge, at the very knees. This is believed to provide additional comfort and a more natural body position than traditional binding arrangements. Otherwise, this mechanism is similar to the Tilt systems (see above).

— Double springs. A mechanism based on a twin spring that supports the back of the chair and creates impedance when the seated person leans back. The impedance of the springs can be adjusted, thus changing the angle by which the backrest will deflect under the weight of the user. This mechanism is used in some gaming chairs (see "Purpose").

Changing the inclination of the headrest changes, accordingly, the inclination of the head resting on it. This allows the user to choose the optimal position for their preferences and specifics of the situation.

The ability to change the backrest tilt back and forth. Allows users to adjust the chair depending on how they prefer to sit: straight or slightly leaning back.

The ability to change the tilt of the entire chair as a whole. At the same time, the back and seat remain motionless relative to each other, and the chair can be fixed at any angle of inclination (within the available adjustment). Note that in some mechanisms - for example, AnyFix and MultiBlock - such capabilities are available by definition, but the matter is not limited to this.

The material from which the chair seat is made directly. Note that individual models can be produced in several versions, differing in the material of the seat.

— Textile. The fabric can have many varieties, and specific characteristics depend on the price category of the chair. And this material is found in all categories — from low-cost models to rather expensive products. The common properties of all types of fabric are low cost, durability, as well as undemanding maintenance.

— Skin. The main distinguishing features of genuine leather are the rich appearance and the corresponding cost. Thus, this material is considered "image" and is used not only for comfort, but also to emphasize the status of the owner. Accordingly, most chairs with leather seats are designed for executives (see "Appointment") and are in the premium class. On the practical side, the leather is durable, quite pleasant to the touch, but poorly breathable (which can create discomfort in hot weather).

— Leatherette. A variety of artificial materials that mimics the natural leather described above. The quality and properties of a particular leatherette, usually, directly depend on its cost (and the price category of the chair in general), but even the most expensive options are usually cheaper than leather — despite the fact that outwardly and even in sensations they can be almost indistinguishable from i...t. In addition, this material is not so demanding to care for. Thanks to this , leatherette seats are quite common. Their main disadvantages are the tendency to scuffs and, in general, a shorter service life than leather ones (but again, a lot depends on the price).

— Plastic. Plastic seats are typical of the most inexpensive chairs designed for visitors — or for staff who do not have to sit in one place for a long time. This material is characterized by low cost combined with strength, reliability and an abundance of colours. At the same time, it has one key drawback, which actually nullifies all the described advantages — hardness; Simply put, sitting on plastic is uncomfortable. Because of this, even among the models mentioned, all-plastic seats are very rare.

— Wood. The word "wood" in the case of seating for office chairs usually refers to plywood. This material is in many ways similar to the plastic described above, but it also has some differences: on the one hand, it has an aesthetic appearance with original patterns and is considered more pleasant to the touch, on the other hand, it costs more and provides relatively few design options. However, such a disadvantage as hardness is also characteristic of this material, which is why it is also used only in isolated cases.

— Net. Seats in the form of a rigid frame, in which a fabric or synthetic mesh is stretched. The main advantages of such designs are light weight and good breathability. The design of the nets allows them to be used even in executive chairs. Of the noticeable shortcomings of mesh seats, one can only single out a slightly lower reliability and greater complexity of repair than those of largely similar fabric seats (see above).

The main material used for the back of the chair. Note that some models are available in several design options that differ in materials; for such models, all available options are given.

- Fabric. Relatively inexpensive and at the same time quite practical material. It has good strength, unpretentious care, while it can be performed in a variety of colours and designs; in addition, it provides good ventilation, which can be useful in the heat.

— Skin. Genuine leather is expensive and well emphasizes the status of the owner (especially since the leather products themselves look solid and rich). Accordingly, the main area of use of this option is executive chairs (see "Appointment"). On the practical side, the skin is durable, quite pleasant to the touch, but it does not breathe well (which can create discomfort in hot weather) and requires some care, otherwise it may lose its “presentation”.

- Leatherette. There are many varieties of leatherette, which differ markedly in price and properties, and the most advanced of them are used even in premium executive chairs. Leatherette backs are not as demanding to care as genuine leather, but are less durable and more susceptible to wear and abrasion.

- Grid. The backs are in the form of a rigid frame, in which a fabric or synthetic mesh is stretched. Th...e main advantages of such designs are light weight and good breathability. The design of the nets allows them to be used even in executive chairs. Of the noticeable shortcomings, one can single out perhaps a slightly lower reliability and greater complexity of repair than in a fabric similar in many respects (see above).

— Plastic. Pure plastic backs are most often used in chairs with seats made of the same material (see above). They are durable and inexpensive, but due to their rigidity they are rather inconvenient, as a result of which they have not gained distribution even among models for visitors.

- Wood. Wooden backs are in many ways similar to the plastic ones described above, except that they cost a little more and can have an original appearance due to the texture patterns of the tree. They are also rarely used because of the rigidity and the inconvenience associated with it.