External Sources, Digital Outputs, Loudspeakers

GETTING STARTED

Connections

External Sources

Two RCA-type jacks marked AUX 1 and AUX 2 are provided. The front input jacks (AUX 1/MP3) should be used for temporary connections, such as an MP3 player, MiniDisc (MD) player, video camera or video game. The rear input jacks (AUX 2) should be used for longer-term connec- tions, such as a VCR or CD Recorder.

In these instructions, the “right speaker” and “left speaker” refer to the speakers as viewed from the listening position.

Speakers and electronics have corresponding (+) and (–) terminals. JBL has used red to denote the (+) terminal and speaker wire, and black for the (–) terminal and speaker wire. It is important to connect both speakers identically: (+) on the speaker to (+) on the main unit, and (–) on the

Insert the bare end of the red (+) wire of the right speaker into the red (+) terminal on the main unit that is marked R 49 . Insert the bare end of the black (–) wire of the right speaker into the black (–) terminal on the main unit that is marked R 49 . Follow the same procedure to connect the wires on the left speaker to the jack and terminals on the back of the main unit that are marked L 46 49 .

DIGITAL OUT

Front

DIGITAL OUT L-AUX1/ MP3-R

AUX1/MP3

speaker to (–) on the main unit. Wiring “out of phase” results in thin sound, weak bass and a poor stereo image.

(SG2020)

		Main speaker
		output jacks
		(high frequency)
	Speaker	Subwoofer
	Speaker	L
	Connector 1	L
	Connector 1
		R

	R L	Insert the bare end of the red (+) wire of the
	Optical-fiber	right speaker into the red (+) terminal on the
	cable	main unit that is marked R 49 . Insert the bare
		main unit that is marked R 49 . Insert the bare
		end of the black (–) wire of the right speaker
		into the black (–) terminal on the main unit that
	MP3 player etc.	is marked R 49 . Follow the same procedure
	MD recorder,
	DIGITAL AUDIO OUT	to connect the wires from the left speaker to
	INPUT	to connect the wires from the left speaker to
	INPUT
	Figure 1	the terminals on the main unit that are
	Figure 1	marked L 49 .
		marked L 49 .

	SUBWOOFER
	(Optional)
Left	L
	Right

WOOFER

Speaker

Connector 2

Left speaker

Right speaker

Digital Outputs

A front panel Optical f and a rear panel Coaxial 47 Digital Output are provided. The front Optical Digital Output is intended for tem- porary connection of an MD recorder or any other portable device that has a digital input. The rear Coaxial Output should be used for more permanent hookups, such as a CD recorder, MD recorder, high-end computer sound card with digital inputs or MP3 encoder. Neither optical nor coaxial cables are supplied with this product and, if not included with the connecting unit, should be purchased separately.

To use the Optical Digital Output, remove the dust protection cap from the connector and firmly connect an optical digital cable (not supplied) so that the shapes of both the cable and the connector match. Keep the dust protection cap in a safe place, and always re-attach the cap when not using the connector to prevent dust from entering the connector.

Loudspeakers

Be sure to turn Power Á 1off before con- necting the loudspeakers.

The main unit and the loudspeakers are designed to work best together. JBL does not recommend the use of any other speakers with the main unit, or the use of JBL Soundgear speakers with a product other than this specific JBL Soundgear source unit.

SUBWOOFER	Subwoofer
L
R
	(Optional)
Black	Red
Red
	Black
Left Speaker	Right Speaker

Figure 2

(SG3030)

In order to provide superior definition and clarity, the JBL Soundgear SG3030 speakers use a different method of connection for the tweeter and midrange sections. For proper performance, be sure to connect all three wires from each speaker as described below:

Insert the yellow RCA-type plug from the right speaker into the yellow jack on the back of the main unit that is marked R 46 (Speaker Connector 1 in Figure 3).

Note: Never insert the yellow plugs into any equipment other than the JBL Soundgear main unit or you may cause damage to the speakers that is not covered by your JBL warranty.

Never insert any plugs other than the yel- low plugs attached to JBL Soundgear loud- speakers into the yellow jacks on the JBL Soundgear main unit 46 or you will cause damage that is not covered by your JBL warranty.

Figure 3

Using JBL Soundgear With an External Powered Subwoofer

The SG2020 and SG3030 both feature a Subwoofer Output jack 48 that can be used with any JBL powered subwoofer recommended by your JBL dealer. The addition of a powered subwoofer dramatically extends and improves your system’s bass response, and is highly rec- ommended either at the time of initial purchase or as a future upgrade. Using a single RCA cable (not included), connect the subwoofer output to the L or R input of the powered subwoofer (the use of a Y-cable is not necessary but is OK). Set the main unit to a normal listening level, and adjust the level, frequency and phase controls on the powered subwoofer as directed in the subwoofer’s owner’s manual.

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.