Read first! Important Safety Precautions

read first! Important Safety Precautions!

	CAUTION			marking label. If you are not sure of the type of power	to dangerous voltage or other hazards. Refer all servicing
	CAUTION			power company. For products intended to operate from	21. Damage Requiring Service. Unplug this product
				supply to your home, consult your product dealer or local	to qualified service personnel.
				battery power, or other sources, refer to the operating	from the wall outlet and refer servicing to qualified
	RISK OF ELECTRIC SHOCK			battery power, or other sources, refer to the operating	from the wall outlet and refer servicing to qualified
	RISK OF ELECTRIC SHOCK			instructions.	service personnel under the following conditions:
		DO NOT OPEN		instructions.	service personnel under the following conditions:
		DO NOT OPEN		12. Polarization. This product may be equipped with a	a. The power-supply cord or the plug has been damaged;
				12. Polarization. This product may be equipped with a	a. The power-supply cord or the plug has been damaged;
				polarized alternating-current-line plug (a plug having one	or
CAUTION: To prevent electric shock,				polarized alternating-current-line plug (a plug having one	or
CAUTION: To prevent electric shock,				blade wider than the other). This plug will fit into the	b. Objects have fallen onto, or liquid has been spilled
	do not use this (polarized)			power outlet only one way. This is a safety feature. If you	into, the product; or
	plug with an extension cord,			are unable to insert the plug fully into the outlet, try	c. The product has been exposed to rain or water; or
	receptacle or other outlet			reversing the plug. If the plug should still fail to fit, con-	d. The product does not operate normally when follow-
		unless the blades can		tact your electrician to replace your obsolete outlet. Do	ing the operating instructions. Adjust only those controls
		be fully inserted to		not defeat the safety purpose of the polarized plug.	that are covered by the operating instructions, as an
		be fully inserted to		13. Power-Cord Protection. Power-supply cords	improper adjustment of other controls may result in dam-
		prevent blade exposure.		13. Power-Cord Protection. Power-supply cords	improper adjustment of other controls may result in dam-
		prevent blade exposure.		should be routed so that they are not likely to be walked	age and will often require extensive work by a qualified
				should be routed so that they are not likely to be walked	age and will often require extensive work by a qualified
		The lightning flash with arrowhead symbol,		on or pinched by items placed upon or against them, pay-	technician to restore the product to its normal operation;
		within an equilateral triangle, is intended to		ing particular attention to cords at plugs, convenience	or
		alert the user to the presence of uninsulated		ing particular attention to cords at plugs, convenience	or
		alert the user to the presence of uninsulated		receptacles, and the point where they exit from the	e. The product has been dropped or damaged in any way;
		“dangerous voltage” within the product’s		receptacles, and the point where they exit from the	e. The product has been dropped or damaged in any way;
enclosure that may be of sufficient magnitude to constitute a				product.	or
risk of electric shock to persons.				14. Nonuse Periods. The power cord of the product	f. The product exhibits a distinct change in performance;
		The exclamation point within an equilateral		should be unplugged from the outlet when left unused for	this indicates a need for service.
		The exclamation point within an equilateral		long periods of time.	22. Replacement Parts. When replacement parts are
		triangle is intended to alert the user to the		long periods of time.	22. Replacement Parts. When replacement parts are
		presence	of important operating and	15. Outdoor Antenna Grounding. If an outside	required, be sure	the service technician has used replace-
		maintenance (servicing) instructions in the		antenna or cable system is connected to the product, be	ment parts specified	by the manufacturer or that have the
literature		accompanying the appliance.		antenna or cable system is connected to the product, be	ment parts specified	by the manufacturer or that have the
literature		accompanying the appliance.		sure the antenna or cable system is grounded so as to	same characteristics	as the original part. Unauthorized
				sure the antenna or cable system is grounded so as to	same characteristics	as the original part. Unauthorized
				provide some protection against voltage surges and built-	substitutions may	result in fire, electric shock or other
1. Read		Instructions. All the safety and operating		up static charges. Article 810 of the National Electrical	hazards.
instructions		should be read before the product is		Code, ANSI/NFPA 70, provides information with regard to	23. Safety Check. Upon completion of any service or
operated.				proper grounding of the mast and supporting structure,	repairs to this product, ask the service technician to per-
2. Retain Instructions. The safety and operating				grounding of the lead-in wire to an antenna discharge	form safety checks to determine that the product is in
instructions should be retained for future reference.				unit, size of grounding conductors, location of antenna-	proper operating condition.
3. Heed Warnings. All warnings on the product and in				discharge unit, connection to grounding electrodes, and	24. Wall or Ceiling Mounting. The product should be
the operating instructions should be adhered to.				requirements for the grounding electrode. See Figure A.	mounted to a wall or ceiling only as recommended by the
4. Follow Instructions. All operating and use instruc-				16. Lightning. For added protection for this product	manufacturer.
tions should be followed.				during a lightning storm, or when it is left unattended	25. Heat. The product should be situated away from
5. Cleaning. Unplug this product from the wall outlet				and unused for long periods of time, unplug it from the	heat sources such as radiators, heat registers, stoves or
before cleaning. Do not use liquid cleaners or aerosol				wall outlet and disconnect the antenna or cable system.	other products (including amplifiers) that produce heat.
cleaners. Use a damp cloth for cleaning.				This will prevent damage to the product due to lightning
6. Attachments. Do not use attachments not recom-				and power-line surges.
mended by the product manufacturer, as they may cause				17. Power Lines. An outside antenna system should
hazards.				not be located in the vicinity of overhead power lines or
7. Water and Moisture. Do not use this product near				other electric light or power circuits, or where it can fall
water–for example, near a bathtub, wash bowl, kitchen				into such power lines or circuits. When installing an out-
sink or laundry tub; in a wet basement; near a swimming				side antenna system, extreme care should be taken to
pool; or the like.				keep from touching such power lines or circuits, as contact
8. Accessories. Do not place this product on an unsta-				with them might be fatal.
ble cart, stand, tripod, bracket or table. The product may				18. Overloading. Do not overload wall outlets, exten-
fall, causing serious injury to a child or adult, and serious				sion cords, or integral convenience receptacles, as this
damage to the product. Use only with a cart, stand, tri-				can result in a risk of fire or electric shock.
pod, bracket or table recommended by the manufacturer,				19. Object and Liquid Entry. Never push objects of
or sold with the product. Any mounting of the product				any kind into this product through openings, as they may
should follow the manufacturer’s instructions, and should				touch dangerous voltage points or short-out parts that
use a mounting accessory recommended by the manufac-				could result in a fire or electric shock. Never spill liquid of
turer.				any kind on the product.
turer.				any kind on the product.
9. A Product and Cart Combination				20. Servicing. Do not attempt to service this product
Should Be Moved with Care. Quick				yourself, as opening or removing covers may expose you
stops, excessive force and uneven surfaces

may cause the product and cart combination to overturn.

10.Ventilation. Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from over- heating, and these openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug or other similar surface. This product should not be placed in a built-in installation, such as a bookcase or rack, unless proper ventilation is provided or the manufacturer’s instruc- tions have been adhered to.

11.Power Sources. This product should be operated only from the type of power source indicated on the

Figure A.

Example of Antenna Grounding as per National Electrical Code ANSI/NFPA 70

Antenna Lead-In Wire

Ground Clamp

Antenna Discharge Unit (NEC Section 810-20)

Grounding Conductors (NEC Section 810-21)

Electric Service Equipment

Ground Clamps

Power Service Grounding Electrode System

(NEC Art 250, Part H)

SG3030, SG2020 specifications

The JBL SG2020 and SG3030 are two high-performance loudspeakers that reflect JBL's commitment to delivering exceptional audio experiences. As part of JBL's professional series, both models are designed to meet the demands of live sound, studio monitoring, and various other audio applications.

The JBL SG2020 is noted for its compact design, making it an ideal choice for smaller venues or mobile setups. Despite its size, it delivers powerful sound with clarity and precision. The SG2020 features a 20-watt RMS amplifier coupled with a 6.5-inch woofer and a 1-inch tweeter, allowing it to produce a wide frequency response. Its frequency range typically spans from 55Hz to 20kHz, ensuring that both low and high frequencies are represented accurately.

One of the standout technologies in the SG2020 is the proprietary JBL transducer design. This includes advanced magnet structures and voice coils that optimize thermal management, resulting in better performance and reliability during extended use. The speaker also employs a robust cabinet construction that minimizes resonance and adds durability, which is essential for professional applications.

On the other hand, the JBL SG3030 takes performance to another level. Equipped with a more powerful 30-watt RMS amplifier and dual 8-inch woofers along with a 1-inch titanium dome tweeter, the SG3030 is capable of delivering a fuller, richer sound experience. It excels in larger venues and can handle higher sound pressure levels without distortion. Its frequency response extends from 45Hz to 20kHz, making it suitable for a broader range of audio content.

Both the SG2020 and SG3030 come with multiple connectivity options, including XLR and TRS inputs, allowing for versatile integration into any audio setup. They also feature adjustable crossover controls, enhancing their versatility for different applications, whether for music performances or film sound design.

Furthermore, both models incorporate JBL's cutting-edge waveguide technology, which ensures even sound distribution throughout the listening area, reducing dead spots and enhancing the overall audio experience. This technology is particularly beneficial in live sound scenarios where audience coverage is crucial.

In summary, the JBL SG2020 and SG3030 loudspeakers are remarkable advancements in sound technology, combining compact design with powerful audio performance. Their blend of durability, advanced features, and professional-grade sound make them excellent choices for musicians, sound engineers, and audio enthusiasts alike. Whether for studio monitoring or live performance, these models stand out in the JBL lineup, making them valuable assets in any audio environment.