ATI Pro Technologies

YX15X800 HD Speaker
15' Woofer
Professional Low Frequency Speaker
4 Inch Copper Voice Coil
95 dB/SPL Sensitivity
40Hz-3 KHz Frequency Range 
2200 Watts continuous Program Power Handling 


General Specifications :

Nominal Diameter: 390/15 mm/inch
Rated Impedance: 8 Ohm
Program Power : 1100 watts
Power Handling Capacity : 2200 Watts
Sensitivity : 95 dB
Frequency Range: 40-3000 Hz
Magnet Weight : 220X110X30/150 mm/OZ
Minimum Impedance : 5.3 Ohm
Voice Coil Diameter : 99.2/4 mm/inch
Voice Coil Material : Glass Fiber
Voice Coil Former Material : 28/1.1 mm/inch
Voice Coil Winding Depth : 4
Number of Layers : Inside / Outside
Kind of Layers : 12/0.47 mm/inch

THIELE - SMALL PARAMETERS

Resonance Frequency : FS 40 HZ
DC Resistance : Re 5.3 Ohm
Mechanical Factor : Qms 5.2
Electrical Factor : Qes 0.47
Total Factor : Qts 0.42
BL Factor : BL 24 T.M
Effective Moving Mass : Mms 120 gr
Equivalent Cas air load : Vas 115 liters
Effective piston area : Sd 0.122 m2
Max. linear excursion (mathematical) : Xmax 8 mm
Half - space efficiency : Eff 1.5 %

SHIPPING INFORMATION

Net Weight : 24.8 Kg
Gross Weight : 28.5 kg
Multiple Size (1pc) : 46X46x48 Cm


About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.About Brand-ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Power Rating: 500W
Nominal Impedance: 8 Ohm
Frame: Aluminium
Voice Coil: 3.5 inch
Sensitivity: 96.5 dB
Frequency: 60hz-4KHz
Magnet Size: 80X10/N40

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 2000W
. Norminal Impedence- 8 ohm
. Frame- Aluminium
. Voice Coil- 5' SV In/Out
. Size/Net Weight- 21'/17 kg
. Frequency- 30 Hz - 1.2 KHz

Heat Sink Technology.

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 800W
. Norminal Impedence- 8 ohm
. Frame-  Aluminium
. Voice Coil- 3.5' In/Out
. Size/Net Weight- 15'/5 kg
Magnet Size - 25x12x12 N40
. Frequency- 40 Hz - 3.5 KHz

High Tone Quality


About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

* 12 Inch Speaker
* 500 Watt RMS Power
* 3 Inch Voice Coil
* 8 Ohm Impedance
* 98 db Senstivity
* 25X12 mm Magnet Size (Neo Magnet)

Power Rating : 600 W
Norminal Impedance : 8 Ohm
Frame : Aluminium
Voice Coil : 3' CCAW
Size/Net Wt: 15'/4 Kg
Magnet Size : 25X12X12 N40
Frequency: 35 Hz - 3.5 KHZ

Here is the Best Quality DJ Speaker by ATi Pro 

. Power Rating: 2500W
. Norminal Impedence: 8 Ohm 
. Frame: Aluminium
. Voice Coil: 6'' In/Out
. Size / Net Wt: 21'' / 20kg
. Frequency: 35 Hz - 1.5 KHz

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 400W
. Norminal Impedence- 8 ohm
. Frame- Aluminium Yellow 
. Voice Coil- 3' CCAW 
. Size/Net Weight- 10'/6 kg
. Frequency- 50 Hz - 3 KHz

India's Most Powerful 10' Ferrite DJ SpeakerMalaysian Cone

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 800W
. Norminal Impedence- 8 ohm
. Frame-  Aluminium
. Voice Coil- 4'' In / Out 
. Size/Net Weight- 15'/12 kg
. Frequency- 45 Hz - 3.5 KHz

Hot Selling Model

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

Power Rating- 800w
Nominal Impedence- 8 Ohm
Frame- Aluminium 
Voice Coil- 4' In/Out
Size/Net Wt.- 12"/7 Kg
Magnet Size- 90X14 N40
Frequency- 45Hz - 2KHz

India's most Powerful 12' Neo Speaker

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

LF Unit12' Woofer, Aluminium BasketVC Size: 3' SV Inside-OutMagnet: 120x80x8 N 40 NeodymiumSenstivity: 96dbNominal Impedence- 8 OhmPower (RMS) : 600 WPower (MAX) : 1200 WFrequency - 55Hz - 4KHz
HF UnitVC Size: 3' SV CCARMagnet: 120x80x8 N 40 NeodymiumSenstivity: 105dbNominal Impedence- 8 OhmPower (RMS) : 110 WPower (MAX) : 220 WFrequency - 500Hz - 19KHz

It Provides Good Coverage Full Range Performance with Phase Guide Technology.

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

Power Rating- 350 W
Nominal Impedence- 8 Ohm
Frame- Iron
Voice Coil- 3'' SV
Size/Net Wt.- 15"/5 Kg
Magnet Size-  170x80x20 Y35
Frequency- 45Hz - 3.0 KHz

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 400W
. Norminal Impedence- 8 ohm
. Frame-  Aluminium
. Voice Coil- 3' SV 
. Size/Net Weight- 15'/9 kg
. Frequency- 50 Hz - 3.5 KHz

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 1600W
. Norminal Impedence- 8 ohm
. Frame-  Aluminium
. Voice Coil- 4.5'' In/Out
. Size/Net Weight- 18'/21 kg
Magnet Size - 253X140x25 Y35
. Frequency- 35 Hz - 2.5 KHz

Water Proof Cone, Heat Sink Technology.

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by Yogi Pro

Power Rating- 1200 W Nominal Impedence- 8 Ohms Frame- Aluminium Voice Coil- 4.5' In/Out Size/Net Wt.- 15"/12.5 Kgs Magnet Size-  250x140x25/Y35 Frequency- 35 Hz - 1.5 KHz 


About Brand-
Yogi Pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

* 400 Watts True Power 
* Aluminium Dicast Frame
* 3 Inch Voice Coil
* 8 Ohm Impedance
* Genuine Wattage
* High Temperature Voice Coil

21NW152 Speaker

21' Woofer
Professional Low Frequency Speaker
6 Inch Copper Voice Coil
97 dB/SPL Sensitivity
30 Hz-2 KHz Frequency Range 
5000 Watts continuous Program Power Handling 
Dimensions mm

General Specifications :

Nominal Diameter: 554/21 mm/inch
Rated Impedance: 8 Ohm
Program Power : 2500 watts
Power Handling Capacity : 5000 Watts
Sensitivity : 97 dB
Frequency Range: 30-2000 Hz
Magnet Weight : 150x50x15/N40 mm/OZ
Minimum Impedance : 5.3 Ohm
Voice Coil Diameter : 152/6 mm/inch
Voice Coil Material : Glass Fiber
Voice Coil Former Material : 31/1.22 mm/inch
Voice Coil Winding Depth : 4
Number of Layers : Inside / Outside
Kind of Layers : 15/0.6 mm/inch

THIELE - SMALL PARAMETERS

Resonance Frequency : FS 30 HZ
DC Resistance : Re 5.3 Ohm
Mechanical Factor : Qms 10.8
Electrical Factor : Qes 0.36
Total Factor : Qts 0.34
BL Factor : BL 35 T.M
Effective Moving Mass : Mms 405 gr
Equivalent Cas air load : Vas 225 liters
Effective piston area : Sd 0.123 m2
Max. linear excursion (mathematical) : Xmax 9 mm
Half - space efficiency : Eff 1.5 %

SHIPPING INFORMATION

Net Weight : 12.5 Kg
Gross Weight : 16.4 kg
Multiple Size (1pc) : 63X63X32.5 Cm 

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Model No: YJY18451
Power RMS: 1700 W
Impedance: 8 Ohm
Voice Coil: 4.5 inch
Magnet: 253X25 mm

Laser Power : 3 W RGBRed : 600mW @ 638nmGreen : 700mW@525nmBlue: 1800mW@450nmScanner: 20KPPS, max scanning angle is 50 degreeLaser Effect : More than 128 graphics and beam effects built inside. Also the users can use laser control software to edit their own programs and show them by the laser through ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control Voltage : 110-240V, 50/60HzPower Consumption : 180 WApplication : Night Club, party, laser show, etc
About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Laser Power : 10 watt green laser, wavelength is 525 nmScanner: 35KPPS, max scanning angle is 60 degree Laser Effect : More than 128 graphics and beam effects built inside. And there is a free SD card software inside the laser. Users can edit some simple programs and store into the laser, then can display them out. Also they can buy professional laser software to edit their own programs, then display them out through the ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control Voltage : 110-240V, 50/60HzPower Consumption : 180 W



About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

ATi Pro Original DJ Speaker HF

Throat - 1 inchMounting Type - Bolt OnNominal Impedance - 8 OhmMax Power - 100 WattsRMS Power - 50 WattsSenstivity@1W/1M - 110dBUsable Frequency Range - 1.0 - 20 KHzRecommended Crossover - 2.2 KHz or Higher 12 dB/ oct. minVoice Coil Diameter - 1. 75 inchVoice Coil Material - CCARVoice Coil Former - KaptonFlux Density - 1.6 TMagnet Type - Strontium FerriteDiaphragm Material - Polyster
About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 650W
. Norminal Impedence- 8 ohm
. Frame-  Aluminium
. Voice Coil- 4' In/Out
. Size/Net Weight- 15'/11.4 kg
Magnet Size - 220X110x25 Y35
. Frequency- 45 Hz - 2.0 KHz


Copper Cooling Ring, Premium Model, Heat Sink Technology VER 3.0
About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by ATi Pro

. Power Rating- 1600W
. Norminal Impedence- 8 ohm
. Frame-  Aluminium
. Voice Coil- 4.5'' In/Out
. Size/Net Weight- 18'/20 kg
Magnet Size - 253x140x25 Y35
. Frequency- 35 Hz - 1.5 KHz

Heat Sink Technology, Long Throw Bass

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by Yogi Pro

Power Rating- 1500 W Nominal Impedence- 8 OhmFrame- Aluminium Voice Coil- 4'' SV LayersSize/Net Wt.- 18"/15'' KgMagnet Size-  220x110x20/ Y35 (Double Magnet)Frequency- 36 Hz - 1.8 KHzDamper- Red Silicon



About Brand-
Yogi Pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by Yogi Pro

Power Rating- 400 W Nominal Impedence- 8 OhmFrame- Aluminium Exl.Voice Coil- 3'' Double LayerSize/Net Wt.- 12"/6 KgsMagnet Size-  190x90x20Frequency- 55 Hz - 2.5 KHz

About Brand-
Yogi Pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by Yogi Pro

Power Rating- 400 W Nominal Impedence- 8 OhmFrame- Aluminium Exl.Voice Coil-  3'' Double LayerSize/Net Wt.-  15''/6.5 KgsMagnet Size- 190x90x20Frequency- 55 Hz - 2.5 KHz


About Brand-
Yogi Pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by Yogi Pro

Power Rating- 1600 W Nominal Impedence- 8 OhmsFrame- Aluminium Exl.Voice Coil- 4.5'' In/OutSize/Net Wt.- 18"/16.93 KgsMagnet Size-  253X140x25Frequency- 36 Hz - 2.2 KHz


About Brand-
Yogi Pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Here we are presenting the Best Quality DJ Speaker by Audioflix

Power Rating- 1500 W Nominal Impedence- 8 OhmFrame- Cast Aluminium Voice Coil- 4.5''Size/Net Wt.- 18"/14.5 KgsMagnet Size-  250x140x30/Y35Frequency- 45 Hz - 2.0 KHz





About Brand-
Audioflix is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Throat - 1 inchNominal Impedance - 8 OhmNominal Power Handling - 80 WattContinuous Power Handling - 160 WattSenstivity (1W/1m) - 110+-2dBFrequency Range (-10dB max) - 1000 - 18000 HzVoice Coil Diameter - 2 inchVoice Coil Material - CCAWFormer Material - KaptonDiaphragm Material - TitaniumMagnet Type Strontium - FerriteMagnet Sizes - 134 mmCover (or adaptor) Material - Plastic

6 head red laser bar, each head power is 500 mW, total is 3WBeam Diameter : 15mmEffect : Laser ON/OFF effects, tracing effects, etc.Play mode : Auto, Sound active, DMX512, Master/SlavePan angle : 240 degreeTitle : 140 degreeVoltage : 110 - 240 V , 50/60 HzPower Consumption : 150 WApplication : Night Club, Laser show , stage, etc.

Laser Power : 1 W RGBRed : 100mW @ 638nmGreen : 100mW@532nmBlue: 800mW@450nmScanner: 20KPPS, max scanning angle is 40 degreeLaser Effect : More than 128 graphics and beam effects built inside. Also the users can use laser control software to edit their own programs and show them by the laser through ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control Voltage : 110-240V, 50/60HzPower Consumption : 150 WApplication : Night Club, party, laser show, etc

Laser Power : 1 watt green laser, wavelength is 525 nmScanner: 20KPPS, max scanning angle is 40 degree Laser Effect : More than 128 graphics and beam effects built inside. Also the users can use laser control software to edit their own programs and show them by the laser through ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control Voltage : 110-240V, 50/60HzPower Consumption : 150 WApplication : Night Club, party, laser show, etc

PD2160 HD Speaker

21' Woofer
Professional Low Frequency Speaker
6 Inch Copper Voice Coil
97 dB/SPL Sensitivity
30 Hz-1.5 KHz Frequency Range 
6000 Watts continuous Program Power Handling 
Dimensions mm

General Specifications :

Nominal Diameter: 554/21 mm/inch
Rated Impedance: 8 Ohm
Program Power : 3000 watts
Power Handling Capacity : 6000 Watts
Sensitivity : 97 dB
Frequency Range: 30-1500 Hz
Magnet Weight : 330x170x30/332 mm/OZ
Minimum Impedance : 5.3 Ohm
Voice Coil Diameter : 152/6 mm/inch
Voice Coil Material : Glass Fiber
Voice Coil Former Material : 35/1.57 mm/inch
Voice Coil Winding Depth : 4
Number of Layers : Inside / Outside
Kind of Layers : 15/0.6 mm/inch

THIELE - SMALL PARAMETERS

Resonance Frequency : FS 30 HZ
DC Resistance : Re 5.3 Ohm
Mechanical Factor : Qms 11.4
Electrical Factor : Qes 0.36
Total Factor : Qts 0.32
BL Factor : BL 35 T.M
Effective Moving Mass : Mms 400 gr
Equivalent Cas air load : Vas 225 liters
Effective piston area : Sd 0.125 m2
Max. linear excursion (mathematical) : Xmax 10 mm
Half - space efficiency : Eff 1.5 %

SHIPPING INFORMATION

Net Weight : 31.5 Kg
Gross Weight : 35.7 kg
Multiple Size (1pc) : 63X63X32.5 Cm 

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

Voltage: AC110-220V 50/60HZ
Power: 120W or 200W
Light source: 36PCS or 54 PCS RGBW 4IN1
Color Material: Cast-Aluminum body
DMX Channels: 6 channel combination optional Packing
Container: 6 PCS/Carton

Model: YJY15400
Power: 410 Watts
Impedance: 8 Ohm
Magnet: 190X20 mm
Nominal Diameter: 15 Inch
Voice Coil: 3' double layer outside
Power Max: 820 W

Here we are presenting the Best Quality DJ Speaker by ATi Pro

About Brand-
ATi pro is one of the best and well known brands in India. Our products define new benchmarks in the industry, our focus is on latest technology and designs.
We have a wide range of DJ Speakers, DJ Amplifiers, Microphones, DJ Lights and many more.

8 head red laser bar, each head power is 500 mW, total is 4WBeam Diameter : 15mmEffect : Laser ON/OFF effects, tracing effects, etc.Play mode : Auto, Sound active, DMX512, Master/SlavePan angle : 240 degreeVoltage : 110 - 240 V , 50/60 HzPower Consumption : 150 WApplication : Night Club, Laser show , stage, etc.

Laser Power : 5 W RGBRed : 1mW @ 638nmGreen : 1mW@525nmBlue:  3mW@450nmScanner: 25KPPS, max scanning angle is 50 degree (40 KPPS for options)Laser Effect : More than 128 graphics and beam effects built inside. And there is a free SD card software inside the laser. Users can edit some simple programs and store into the laser, then can display them out. Also they can buy professional laser software to edit their own  programs, them display them out through the ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control , SD CardVoltage : 110-240V, 50/60HzPower Consumption : 180 WApplication : Night Club, party, laser show, etc

Laser Power : 20 W RGB laserRed : 5mW @ 638nmGreen : 5mW@525nmBlue:  10mW@450nmScanner: 35KPPS, max scanning angle is 60 degree Laser Effect : More than 128 graphics and beam effects built inside. And there is a free SD card software inside the laser. Users can edit some simple programs and store into the laser, then can display them out. Also they can buy professional laser software to edit their own  programs, them display them out through the ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control , SD CardVoltage : 110-240V, 50/60HzPower Consumption : 200 WApplication : Night Club, party, laser show, etc

Laser Power : 15watt green laser @ 525 nmScanner: 35 KPPS, max scanning angle is 60 degree Laser Effect : More than 128 graphics and beam effects built inside. And there is a free SD card software inside the laser. Users can edit some simple programs and store into the laser. then can display them out. Also they can buy professional laser software to edit their own programs, them display them out through the ILDA PC mode.Play mode : Auto, Sound active, DMX512, Master/Slave, ILDA PC Control , SD Card.Voltage : 110-240V, 50/60HzPower Consumption : 200 WApplication : Night Club, party, laser show, etc