Acoustic system “according to Chebyshev” (on dual speakers)


Today we are talking about one of the most popular games. More precisely, about one of its most popular versions. The full edition of Geometry Dash 2.2 Update Sneak Peek can be downloaded via a direct link for your computer and Android smartphone. We will also describe the installation process. However, first things first...

Game description

The essence of this game is to jump over obstacles. And not just jumping over - everything happens at very high speed. Even at the initial levels it feels good. The main character is an ordinary cube. But it can be customized by installing skins. However, in this game almost everything is customizable to the needs of a particular user. For example, you can change the music or appearance of different cards.

An interesting feature of Geometry Dash is the ability to install one of a huge number of levels. Here everyone can create their own map and make it publicly available.

Features of Geometry Dash 2.2

One of the main features of Geometry Dash free downloadable PC game is that it has 18 levels to complete and each level can be accessed and progressed only after completing the previous levels. Each of the game's 18 levels has a different difficulty level, which increases as the levels increase. Features of GD 2.2 on PC:

  • Levels are created by users;
  • The Level Builder helps you build a level;
  • Secret coins available;
  • Card packages are provided to the user.

The computer game Geometry Dash can be played using a moving icon, which is controlled by a very convenient touch-mouse system.

Playing the game is very simple as the player just needs to press on the touch screen and the icon will start jumping. It is difficult for players to control the speed of the icon as it moves very quickly. What makes this game so exciting is that they included different genres of music in each game, making each free geometry PC game as unique as possible. The speed and rhythm fascinate the player and make the game truly enjoyable.

After downloading Geometry Dash on your PC or Android phone, you can play without any problems.

One of the reasons for its popularity and why it is at the top of everyone's favorite is that it is filled with fun and excitement, besides making the player more active. Moreover, the simple style of play and the lack of unnecessary analysis or thinking involved in the game makes Geometry Dash a very interesting game, especially for young people who find it quite addictive.

What's new

Now let's talk about the innovations of Geometry Dash in update 2.2. After all, this is the version of the game that you came here for.

  • A new level "Electroman Adventures" has been added.
  • Fixing major bugs and problems.
  • Added a new game mode.
  • Fixed an issue with Newgrounds songs.
  • It was this version that added the hacked APK files of Geometry Dash World, Geometry Dash SubZero, Geometry Dash Meltdown and Geometry Dash Lite to the phone.
  • Added several Easter eggs.

The total number of new functions has reached 65.

exUSSR high-frequency dynamic drivers

0.5GD-36

Purpose - use in acoustic systems of household radio equipment as a high-frequency link when working indoors.
The loudspeaker head is electrodynamic type, high-frequency, round. The diffuser holder is made of stamped steel. The diffuser is made of impregnated paper pulp. The centering washer is made of impregnated fabric. Effective operating frequency range

Hz1000 — 16000
Frequency response unevennessdb16
Average standard sound pressurePa0,15
Nominal electrical resistanceOhm10
Maximum noise (nameplate) powerW0,75
dimensionsmmd80x34.5
WeightG100

1GDV-1-8 (1GD-56)

Purpose - use in closed remote acoustic systems of household radio equipment of the 1st and 2nd complexity groups as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with a shielded magnetic circuit. The mounting flange is made of aluminum alloy. The diaphragm is protected by a metal mesh .

Effective operating frequency rangeHz6300 — 16000
Characteristic sensitivity leveldB/W*m88
Frequency response unevennessdb14
Average standard sound pressurePa0,15
Nominal average sound pressurePa0,5
Total Harmonic Distortion%3
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW1
Limiting long-term powerW1,5
Maximum short-term powerW3
Fundamental Resonance FrequencyHz2500+-500
Electrical quality factor, Qes0,1
dimensionsmm40x40x29
WeightG100

Voice coil design

Wire brandPEL
Wire diametermm0,05
Number of winding layers2
Number of turns in 1st layer7
Number of turns in the 2nd layer7
Coil ohmic resistanceOhm7,8 +-1
Voice coil heightmm4
Inner diametermm20,3
Outer diameter, including windingmm20,8

1GD-2 VEF

Purpose - use in acoustic systems of household radio equipment as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with a core magnet in the magnetic circuit. The diffuser holder is made of stamped steel. The round diffuser is made of impregnated paper pulp. The centering washer is made of impregnated fabric.

Effective operating frequency rangeHz2000 — 15000
Frequency response unevennessdb15
Average standard sound pressurePa0,2
Nominal electrical resistanceOhm8
Fundamental Resonance FrequencyHz1900+-300
dimensionsmmd90x57
WeightG250

1GD-3, 1GD-3 RRZ

Purpose - use in acoustic systems of household radio equipment as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with a core magnet in the magnetic circuit. The diffuser holder is made of stamped steel. The round diffuser is made of impregnated paper pulp. The centering washer is made of impregnated fabric.

Effective operating frequency rangeHz5000 — 16000
Frequency response unevennessdb10
Average standard sound pressurePa0.3
Nominal electrical resistanceOhm12
Maximum noise (nameplate) powerW1,5
Fundamental Resonance FrequencyHz4500+-1000
dimensionsmmd70x27
WeightG182

3 GD-15 (M)

Effective operating frequency rangeHz1000 — 18000
Characteristic sensitivity leveldB/W*m92
Frequency response unevennessdb15
Nominal electrical resistanceOhm6,5
dimensionsmmd 105x64
WeightG230

3 GDV-1-8 (2 GD-36)

Effective operating frequency rangeHz3150 — 20000
Characteristic sensitivity leveldB/W*m90
Frequency response unevennessdb12
Nominal electrical resistanceOhm8
Fundamental Resonance FrequencyHz2900+-100
Electrical quality factor, Qes0,16
dimensionsmm80x50x29

4GDV-1-8 (3GD-47)

Purpose - use in closed and phase-inverted acoustic systems of household radio equipment of the 1st and 2nd complexity groups as a high-frequency link when working indoors. The loudspeaker head is electrodynamic type, high-frequency, round.

Effective operating frequency rangeHz2000 — 20000
Characteristic sensitivity leveldB/W*m91
Frequency response unevennessdb14
Total Harmonic Distortion%3
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW4
Limiting long-term powerW6
Maximum short-term powerW8
Fundamental Resonance FrequencyHz1500+-500
Electrical quality factor, Qes0,35
dimensionsmm65x65x44
WeightG350

5GDV-1-8 (3GD-31)

Purpose - use in closed remote acoustic systems of household radio equipment of the 1st and 2nd complexity groups as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with a shielded magnetic circuit. The mounting flange is made of aluminum alloy. The diaphragm is protected by a metal mesh.

Effective operating frequency rangeHz6300 — 16000
Characteristic sensitivity leveldB/W*m88
Frequency response unevennessdb14
Average standard sound pressurePa0,15
Nominal average sound pressurePa0,5
Total Harmonic Distortion%3
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW1
Limiting long-term powerW1,5
Maximum short-term powerW3
Fundamental Resonance FrequencyHz2500+-500
dimensionsmm40x40x29
WeightG100

Voice coil design

Wire brandPEL
Wire diametermm0,05
Number of winding layers2
Number of turns in 1st layer7
Number of turns in the 2nd layer7
Coil ohmic resistanceOhm7,8 +-1
Voice coil heightmm4
Inner diametermm20,3
Outer diameter, including windingmm20,8

5GDV-1-8 A

Effective operating frequency rangeHz2800 — 20000
Characteristic sensitivity leveldB/W*m90
Frequency response unevennessdb16
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW5
Fundamental Resonance FrequencyHz2500+-500
Equivalent volume, VasLiter
Electrical quality factor, Qes0,4
dimensionsmm100x100x48.3

6GDV-1-16 (3GD-2)

Purpose - use in closed and phase-inverted acoustic systems of household radio equipment of the 2nd complexity group as a high-frequency link when working indoors. The loudspeaker head is electrodynamic type, high-frequency, round, with a shielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made of impregnated fabric.

Effective operating frequency rangeHz5000 — 18000
Characteristic sensitivity leveldB/W*m90
Frequency response unevennessdb14
Average standard sound pressurePa0,25
Total Harmonic Distortion%3
Nominal electrical resistanceOhm16
Maximum noise (nameplate) powerW6
Limiting long-term powerW8
Maximum short-term powerW10
Fundamental Resonance FrequencyHz4500+-500
Electrical quality factor, Qes0,2
dimensionsmm63x63x31
WeightG200

Voice coil design

Wire brandPEVL
Wire diametermm0,07
Number of winding layers2
Number of turns in 1st layer21
Number of turns in the 2nd layer20
Coil ohmic resistanceOhm12 +-1
Voice coil heightmm8
Inner diametermm20,3
Outer diameter, including windingmm20,9

6GDV-1-25 (3GD-2)

Purpose - use in closed and phase-inverted acoustic systems of household radio equipment of the 2nd complexity group as a high-frequency link when working indoors. The loudspeaker head is electrodynamic type, high-frequency, round, with a shielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made of impregnated fabric.

Effective operating frequency rangeHz5000 — 18000
Characteristic sensitivity leveldB/W*m90
Frequency response unevennessdb8
Average standard sound pressurePa0,25
Total Harmonic Distortion%3
Nominal electrical resistanceOhm25
Maximum noise (nameplate) powerW6
Limiting long-term powerW8
Maximum short-term powerW10
Fundamental Resonance FrequencyHz4500+-500
dimensionsmm63x63x31
WeightG200

Voice coil design

Wire brandPEVL
Wire diametermm0,07
Number of winding layers2
Number of turns in 1st layer31
Number of turns in the 2nd layer30
Coil ohmic resistanceOhm20+-1
Voice coil heightmm8
Inner diametermm20,3
Outer diameter, including windingmm20,9

6GDV-2-8(4GD-56)

Purpose - use in remote acoustic systems of household radio equipment of the 1st and 2nd complexity groups as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The diffuser holder is made of stamped steel. The cone diffuser with suspension is cast from impregnated paper pulp. The centering washer is made of impregnated fabric.

Effective operating frequency rangeHz3150 — 20000
Characteristic sensitivity leveldB/W*m90
Frequency response unevennessdb14
Average standard sound pressurePa0,2
Nominal average sound pressurePa
Total Harmonic Distortion%3
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW6
Limiting long-term powerW8
Maximum short-term powerW12
Fundamental Resonance FrequencyHz1600+400-630
Electrical quality factor, Qes0,16
dimensionsmm80x50x35
WeightG160

Voice coil design

Wire brandPEVL
Wire diametermm0,08
Number of winding layers2
Number of turns in 1st layer21
Number of turns in the 2nd layer22
Coil ohmic resistanceOhm7+-1,05
Voice coil heightmm8,5
Inner diametermm15,4
Outer diameter, including windingmm15,9

6GDV-4-8(6GD-13)

Purpose - use in remote acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made on the basis of polyethylene terephtholate.

Effective operating frequency rangeHz3150 — 25000
Characteristic sensitivity leveldB/W*m93
Frequency response unevennessdb8
Average standard sound pressurePa0,3
Nominal average sound pressurePa1,26
Total Harmonic Distortion%3
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW6
Limiting long-term powerW8
Maximum short-term powerW10
Fundamental Resonance FrequencyHz3000+-500
Electrical quality factor, Qes0,9
dimensionsmm100x100x44.5
WeightG900

Voice coil design

Wire brandPEVL
Wire diametermm0,1
Number of winding layers2
Number of turns in 1st layer26
Number of turns in the 2nd layer25
Coil ohmic resistanceOhm7+-1
Voice coil heightmm4,5
Inner diametermm25,4
Outer diameter, including windingmm26,05

6GDV-6-16(10GD-35)

Purpose - use in closed acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made on the basis of polyethylene terephtholate.

Effective operating frequency rangeHz5000 — 25000
Characteristic sensitivity leveldB/W*m91
Frequency response unevennessdb12
Average standard sound pressurePa0,3
Nominal average sound pressurePa1,26
Total Harmonic Distortion%2
Nominal electrical resistanceOhm16
Maximum noise (nameplate) powerW6
Limiting long-term powerW8
Maximum short-term powerW10
Fundamental Resonance FrequencyHz3000+600-1300
dimensionsmm100x100x44.5
WeightG900

Voice coil design

Wire brandPEVL
Wire diametermm0,1
Number of winding layers2
Number of turns in 1st layer26
Number of turns in the 2nd layer25
Coil ohmic resistanceOhm7+-1
Voice coil heightmm4,5
Inner diametermm25,4
Outer diameter, including windingmm26,05

6GDV-6-25

Purpose - use in closed acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made on the basis of polyethylene terephtholate.

Effective operating frequency rangeHz5000 — 25000
Characteristic sensitivity leveldB/W*m91
Frequency response unevennessdb12
Total Harmonic Distortion%2
Nominal electrical resistanceOhm25
Maximum noise (nameplate) powerW6
Limiting long-term powerW8
Maximum short-term powerW10
Fundamental Resonance FrequencyHz3000+600-1300
dimensionsmm100x100x35
WeightG1000

Voice coil design

Wire brandPEVL
Wire diametermm0,08
Number of winding layers2
Number of turns in 1st layer34
Number of turns in the 2nd layer33
Coil ohmic resistanceOhm21,7+-1,5
Voice coil heightmm4,5
Inner diametermm25,4
Outer diameter, including windingmm25,95

6GDV-7-16

Purpose - use in closed acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made on the basis of polyethylene terephtholate.

Effective operating frequency rangeHz5000 — 25000
Characteristic sensitivity leveldB/W*m92
Frequency response unevennessdb12
Nominal average sound pressurePa1,26
Total Harmonic Distortion%3
Nominal electrical resistanceOhm16
Maximum noise (nameplate) powerW6
Limiting long-term powerW10
Maximum short-term powerW20
Fundamental Resonance FrequencyHz3500+600-1000
dimensionsmm100x100x35
WeightG1000

Voice coil design

Wire brandPETV-1
Wire diametermm0,08
Number of winding layers2
Number of turns in 1st layer23
Number of turns in the 2nd layer22
Coil ohmic resistanceOhm12,7+-1,3
Voice coil heightmm5,9
Inner diametermm25,4
Outer diameter, including windingmm25,95

6GDV-9-16

Purpose - use in closed acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made on the basis of polyethylene terephtholate.

Effective operating frequency rangeHz5000 — 25000
Characteristic sensitivity leveldB/W*m91
Frequency response unevennessdb12
Total Harmonic Distortion%1
Nominal electrical resistanceOhm16
Maximum noise (nameplate) powerW6
Limiting long-term powerW10
Maximum short-term powerW20
Fundamental Resonance FrequencyHz3000+500-1000
dimensionsmm100x100x35
WeightG1000

Voice coil design

Wire brandPETVL-1
Wire diametermm0,013
Number of winding layers2
Number of turns in 1st layer21
Number of turns in the 2nd layer20
Coil ohmic resistanceOhm16+-1
Voice coil heightmm5,7
Inner diametermm20,3
Outer diameter, including windingmm20,9

10GI-1-4 (10GI-1)

Purpose - use in closed acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when operating indoors. The loudspeaker head is electrodynamic (isodynamic) type, high-frequency, rectangular, with an unshielded magnetic circuit. Magnetic system of 2 parallel opposing rows of magnets. The membrane is flat made of polymer film with a voice coil applied to it. The magnets are held in the grooves of the frames. Plates made of soft magnetic material, closing the poles of the magnets, strengthen the magnetic field acting on the membrane. The gap between the magnets and the membrane is formed using frames. Damping material smoothes out the frequency response.

Effective operating frequency rangeHz2500 — 25000
Characteristic sensitivity leveldB/W*m87
Frequency response unevennessdb12
Total Harmonic Distortion%1
Nominal electrical resistanceOhm4
Maximum noise (nameplate) powerW15
Limiting long-term powerW20
Maximum short-term powerW25
Fundamental Resonance FrequencyHz2000+-500
dimensionsmm107x119x32
WeightG740

10GI-1-8 (10GI-1)

Purpose - use in closed acoustic systems of household radio equipment of the highest complexity group as a high-frequency link when operating indoors. The loudspeaker head is electrodynamic (isodynamic) type, high-frequency, rectangular, with an unshielded magnetic circuit. Magnetic system of 2 parallel opposing rows of magnets. The membrane is flat made of polymer film with a voice coil applied to it. The magnets are held in the grooves of the frames. Plates made of soft magnetic material, closing the poles of the magnets, strengthen the magnetic field acting on the membrane. The gap between the magnets and the membrane is formed using frames. Damping material smoothes out the frequency response.

Effective operating frequency rangeHz2500 — 25000
Characteristic sensitivity leveldB/W*m87
Frequency response unevennessdb12
Total Harmonic Distortion%1
Nominal electrical resistanceOhm8
Maximum noise (nameplate) powerW15
Limiting long-term powerW20
Maximum short-term powerW25
Fundamental Resonance FrequencyHz2000+-500
Electrical quality factor, Qes0,4
dimensionsmm107x119x32
WeightG740

10GDV-2-16 (10GD-35B)

Purpose - use in remote acoustic systems of household radio equipment of the highest and 1st complexity groups as a high-frequency link when working indoors. The loudspeaker head is of electrodynamic type, high-frequency, round, with an unshielded magnetic circuit. The mounting flange and acoustic lens are made of plastic. The dome-shaped diaphragm with suspension is made by pressing film.

Effective operating frequency rangeHz5000 — 25000
Characteristic sensitivity leveldB/W*m92
Frequency response unevennessdb12
Average standard sound pressurePa0,25
Total Harmonic Distortion%3
Nominal electrical resistanceOhm16
Maximum noise (nameplate) powerW10
Limiting long-term powerW15
Maximum short-term powerW20
Fundamental Resonance FrequencyHz2800 — 3000
Electrical quality factor, Qes1,0
dimensionsmm100x100x35
WeightG1000

Voice coil design

Wire brandPETVL-1
Wire diametermm0,08
Number of winding layers2
Number of turns in 1st layer23
Number of turns in the 2nd layer22
Coil ohmic resistanceOhm12,7+-1,3
Voice coil heightmm4,5
Inner diametermm25,4
Outer diameter, including windingmm26,0

10 GDV-4-16

Effective operating frequency rangeHz5000 — 25000
Characteristic sensitivity leveldB/W*m94
Nominal electrical resistanceOhm16
dimensionsmm110x110x40

20 GDV-1 (20 GD-4)

Effective operating frequency rangeHz5000 — 35000
Characteristic sensitivity leveldB/W*m90
Nominal electrical resistanceOhm8
dimensionsmm125x125x40

How to install

You can install this version not only on an Android smartphone, but also on a computer. Let's consider both the first and second cases in more detail.

For computer

Let's start with PC. To install the game, you need to go to the very end of the page and download the archive.

  1. Next, unpack all the files needed for work and right-click to launch the object indicated in the screenshot as administrator.

  1. Then the installation itself will begin. We just have to wait for the process to complete.

In just a few seconds, the installation of Geometry Dash will be completed, after which you can start playing.

For Android

On Android everything is done in a similar way. First, you go a little lower and click the button that will start downloading the modified APK file. We launch this very file and, guided by the prompts, install the game.

On our website you can find detailed step-by-step instructions for installing Geometry Dash on your computer and Android smartphone. There the installation process is described in more detail.

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