JBL EON Sub G2 User's Guide
Part Number: 981-00059-00 Rev. A
Contents
Welcome
Welcome to the family of discerning sound equipment users who have selected JBL Professional loudspeakers. EON is a creation of JBL, the world leader in sound reinforcement. JBL sound systems are used in some of the world's most famous arenas, concert halls and clubs. In fact, JBL speakers are the premier choice for today's hottest touring acts and artists. You just can't make a more professional choice. This User Guide contains important information that will help you get the most from your JBL EON loudspeakers so please take a moment to read it and be sure to keep it in a safe place for future reference.
Congratulations and thanks from all of us at JBL Professional. You have invested in the best portable performance system available.
Package Contents
Your EON Sub G2 should include the following:
- ✅ 1 User Guide
- ✅ 1 EON Sub G2 speaker
- ✅ 1 10′ (3 m) IEC Power Cable
Agency Approvals and Certifications
This EON G2 speaker complies with all International Safety Requirements for Mains Operated Professional audio equipment under IEC65, and Electromagnetic compatibility, Radio interference, Emissions and Immunity requirements.
Before You Begin - Important Information
Before using your EON Sub G2 speaker system please review the following for important information on safety and protection of your investment in quality loudspeakers.
Mounting / Suspending EON Speakers
EON speakers are designed for portable applications in which the speakers will be stacked directly on the floor, stage, speaker stands, or a solid, stable platform. Optional accessory items are available from JBL Professional and specific aftermarket suppliers to facilitate suspension and wall / ceiling mounting of EON speakers. Only those items recommended by JBL Professional should be used. When using these items, review all enclosed documentation and carefully follow all instructions and safety precautions.
⚠️ CAUTION: Suspension of speakers should be done by qualified persons following safe rigging standards and practices. Unsafe mounting or overhead suspension of any heavy load can result in serious injury and equipment damage.
Care and Maintenance
While your EON speakers are rugged and will provide years of service, some common sense care in handling will prevent damage and preserve appearance.
- If your speakers will be frequently moved, consider a padded carrying bag (see AVAILABLE ACCESSORIES).
- If your EON speakers have been subjected to prolonged exposure to extreme low temperatures, avoid subjecting them to heavy mechanical shock and warm the speakers up by playing at a low volume for one hour before playing at loud levels.
- Keep the exterior of the speaker enclosure clean. Use a damp rag with a general-purpose household detergent. For grease and marking tape residue, use a damp cloth with isopropyl alcohol or mineral spirits and wipe dry. Do not use powerful solvents like acetone, MEK, lacquer thinner or 1,1,1-Trichloro-ethane (household cleaning fluid). These solvents will damage painted and co-polymer surfaces of your speakers.
- EON speakers are not intended for fixed installation in outdoor environments. Moisture can damage the speaker cone and surround, cause corrosion of electrical contacts, and create an electrical shock hazard. Protect your speakers from moisture. Avoid exposing the speakers to direct moisture. Any electrically powered device can produce dangerous shock hazards when wet or exposed to moisture. Keep speakers out of extended or intense direct sunlight. The driver suspension will prematurely dry out and finished surfaces will be degraded by long-term exposure to intense ultra-violet (UV) light.
- The EON Sub G2 contains no user serviceable parts. Refer servicing to an authorized JBL service agency.
Stand Mounting and Precautions
Your EON speakers include a 35mm receptacle cup to facilitate mounting on tripod stands. When using stands, be sure to observe the following precautions:
- EON speakers include a thumb-screw that can be tightened to lock the speaker to the tripod stand. Before mounting the speaker on the stand, be sure to loosen the screw so that it doesn't prevent the pole from fully penetrating the socket.
- Check the stand specification to be certain it is designed to support the weight of the speaker (see specifications). Observe all safety precautions specified by the stand manufacturer.
- Always verify that the stand is placed on a flat, level, and stable surface.
- Route cables so that performers, production crew, and audience will not trip over them and pull the speaker over.
- Be sure to fully extend the legs of tripod type stands.
- Position the stand so that the legs do not present a trip hazard.
- Do not attempt to place more than one speaker on a stand designed for a single speaker.
- Always be cautious in windy, outdoor conditions. It may be necessary to place additional weight (i.e. sandbags) on the base of the stand to improve stability.
The EON Sub G2 generates considerable energy. When placed on a slippery surface such as polished wood or linoleum, the EON Sub G2 may move due to its acoustical energy output. Precautions should be taken to assure that the speaker does not fall off a stage or table on which it is placed. One solution is to place the speaker on a rubber mat.
Electrical Safety
All EON powered series speakers are fitted with a detachable power cord (supplied) which connects to the AC mains on the back panel of the loudspeaker. The power cord has an IEC female connector on one end and a male mains connector on the other end. This cord is supplied to accommodate the different worldwide safety and electrical code requirements. If the power cord supplied with your EON product has a 3-pin type plug do not cut off or damage the grounding plug. Like any electrical appliance, your EON powered speakers should not be used in water or when wet.
About the EON SUB G2
Applications
To supplement or extend the low frequency output of powered and non-powered full-range speaker systems.
Features
- 15" Differential Drive™ low-frequency driver with dual neodymium magnet for high power handling, efficiency, and light weight.
- 250 watts actual power delivered to the drivers.
- Balanced loop-through output.
- Thermomaster™ Total Thermal Management System®. A single piece, cast-aluminum baffle integrates the woofer frame, horn, and amplifier heat-sink. Air movement in the finned ports dissipates heat – no internal or external cooling fans are required.
- Rugged, light weight, black co-polymer enclosure with cast aluminum baffle.
- Integral 35mm pole mount receptacle with securing thumb screw.
- Extended low-frequency performance. Delivers powerful bass down to 40 Hz.
Technical Specifications
| Parameter | Specification |
|---|---|
| Freq. Range (-10 dB) | 40 Hz – 200 Hz |
| Crossover Freq. | 125 Hz |
| Maximum SPL | 117 dB, @ 1 m (3.3 ft) |
| Dimensions (H x W x D) | 686 mm x 430 mm x 444 mm (27 in x 17 in x 17.5 in.) |
| Net Weight | 19.5 kg (43 lbs.) |
| Driver | Integral frame with one 15" (380 mm) driver, dual neodymium magnet, 2" differential drive voice coil. |
| Electronic Amplifier Rated Power | 250 watts @ 2Ω, 0.1% THD |
| Input Type | Balanced, differential |
| Maximum Input Level | +28 dBu |
| Line Level In | 120 VRMS, speaker level |
| Input Impedance | 16 kΩ line level |
| Speaker Level In | 143 kΩ speaker level |
| Audio Connectors | XLR/F, balanced, line level; 1/4" Phone, speaker level |
| Line Level In | XLR/M, balanced, line level |
| Speaker Level In | 125 Hz Active, 3-pole |
| Loop Output | 110 – 230 VAC, selectable, 50 – 60 Hz., 203 watts rating per UL, detachable IEC power cable. |
| Low Pass Filter | |
| AC Input |
Available Accessories
- SS2-BK: Tripod Stand
- ESK15: Suspension Kit for EON 15″ models (except EON1500)
- BRK15: Bracket, adapts EON 15″ models to OmniMount® brackets
- EON 15 WB: Zippered, plush-lined Cordura™ bag with wheels for EON15″ models
- EON 15 BAG: Zippered, plush-lined Cordura™ carrying bag for EON15″ models
Controls and Connections
The audio section of the EON Sub G2 includes powerful features that enhance the flexibility of your subwoofer.
Connectors
- LINE LEVEL INPUT: This balanced input accepts a standard XLR (female) connector. The LINE LEVEL INPUT is where the line level output of the audio mixer will be connected.
- LOOP THRU OUTPUT: This XLR (male) connector is in parallel with the LINE LEVEL input and provides a convenient way to loop the audio signal from your mixer into additional EON Subs or your powered mid / high speakers.
- SPEAKER LEVEL INPUT: This 1/4" phone jack accepts the high level output from a power amplifier or powered mixer. The SPEAKER LEVEL INPUT is the easiest way to add the EON Sub G2 to an existing system using a powered mixer or external amplifier to drive mid / high speakers. See "EON Sub G2 with Powered Mixer and Passive Mid / High System" for more details.
Switches and Controls
- POLARITY: The performance of a subwoofer depends on how it interacts with the mid/high speaker system. Depending on characteristics of the mid/high system and the relative position of the subwoofer, changing this switch may improve system performance. Depress this switch to reverse the polarity of the subwoofer.
- VOLUME: The VOLUME control adjusts the input sensitivity of the EON Sub G2.
Indicators
- PEAK: This red LED illuminates to indicate that the amplifier output is approaching clipping.
- POLARITY REV: This LED illuminates to indicate that the subwoofer is operating with reversed polarity. This means that a positive voltage on pin 2 of the LINE LEVEL INPUT will cause the speaker cone to move inward/backward.
- SIGNAL: The SIGNAL LED illuminates to indicate that an audio signal is present at the LINE LEVEL INPUT or the SPEAKER LEVEL INPUT.
Block Diagram
The block diagram illustrates the signal path within the EON Sub G2. Input signals from the LINE LEVEL INPUT or SPEAKER LEVEL INPUT are processed through equalization (EQ), high-pass filter (HPF), and low-pass filter (LPF) stages before being amplified by a 250W amplifier. The VOLUME control adjusts input sensitivity, and the POLARITY switch (NORMAL/REV) allows for phase adjustment. The PEAK indicator signals amplifier clipping, and the SIGNAL indicator shows the presence of an audio signal. The LOOP THRU OUTPUT mirrors the LINE LEVEL INPUT signal.
About Subwoofers
The human ear is less sensitive to very low frequencies compared to mid-range frequencies. While a 1,000 Hz sound at 95 dB SPL can be obnoxious, a 50 Hz sound at the same level is perceived as pleasantly powerful. Musicians and producers understand this, creating music with significant energy below 100 Hz. To reproduce this accurately, audio systems require greater acoustic output capability in the low bass frequencies. This requirement for extra energy is inherent in the music itself, especially in contemporary dance music.
Subwoofers are specialized speakers designed to operate below 150 Hz. Most sound poor above 200 Hz. Some subwoofers are engineered for extreme low-frequency extension, reaching down to 20 Hz, which is more suited for cinema effects than music and typically requires large size and high amplifier power. Other subwoofers focus on delivering "punch," the impact felt from a kick drum, often in the 80 Hz region, making them more practical for portable music applications.
Historically, adding a subwoofer involved complex setups with external crossover networks and extra power amplifiers. The JBL EON Sub G2 simplifies this by integrating these components into a single, lightweight system.
Application Examples
Stereo System With EON Mid / High System with EON Sub G2s
This setup uses a pair of EON Subs with a pair of EON 2-way powered speakers. The EON Subs receive the main stereo mix via their LINE LEVEL INPUTS. The audio signal is then looped through to the EON 2-way speakers via the LOOP THRU OUTPUTS on the EON Subs. This configuration effectively extends the low-frequency response of the main stereo system.
Diagram Description: A mixer is shown connected to two EON10 G2 speakers and two EON Sub G2s. Each EON Sub G2 receives a stereo signal from the mixer's outputs via its LINE LEVEL INPUT. The LOOP THRU OUTPUT of each EON Sub G2 is then connected to the LINE LEVEL INPUT of an EON10 G2 speaker, creating a stereo system with bass reinforcement.
Mono Subwoofer
This setup uses subwoofers in mono, which does not degrade the stereo image for low frequencies as the ear has difficulty localizing them. This technique can be used with one or two subwoofers.
Driving the Subs from a Mono Output
Many mixers offer a mono output that sums the left and right mixes. Using this output for subwoofers provides separate volume control from the main mix, allowing for easy adjustment of the balance between subwoofers and mid/high speakers.
Driving the Subs from an Auxiliary Output
Professional engineers often create a separate mix for subwoofers using the mixer's Auxiliary buss. This technique enhances low-frequency performance by allowing independent control over the subwoofer and mid/high balance. It is useful for boosting specific low-frequency instruments (like bass guitar) without affecting the overall mix. This method also helps to exclude unwanted low-frequency content from sources like vocal microphones, ensuring only instruments with significant low-frequency energy (kick drum, bass guitar) are sent to the subs.
Diagram Description: Two mixer output configurations are shown for driving EON Sub G2s in mono. Option 1 shows the EON Sub G2s receiving a mono signal from a mixer's dedicated mono output. Option 2 shows the EON Sub G2s receiving a signal from a mixer's auxiliary send. In both options, the EON10 G2 speakers receive the main stereo mix from the mixer's main outputs.
Powered Sub with Passive Mid / High
The SPEAKER LEVEL INPUT on the EON Sub G2 provides a convenient way to integrate subwoofers into a system using passive 2-way speakers. The EON Sub G2 receives a high-level signal from a powered mixer or amplifier and outputs this signal to the passive speakers.
Diagram Description: Two EON Sub G2s are connected to two passive 2-way speakers. The EON Sub G2s receive a signal from a powered mixer or amplifier outputs via their SPEAKER LEVEL INPUTS. The signal is then passed from the EON Sub G2s' IN connectors to the passive 2-way speakers' IN connectors.
Voltage Selection And Fuses
Changing Voltage
Your EON Sub G2 is typically set at the factory to match the power mains voltage in your area. Before initial setup, verify that the voltage selector setting is appropriate. A seal below the IEC power connector indicates the factory voltage setting. If the indicated voltage is correct, proceed with powering up the unit.
To change the voltage:
- Ensure the AC power is disconnected from the speaker.
- Locate the voltage selector switch directly below the male IEC connector. Break the factory-applied seal.
- Set the voltage selector switch to the required setting (115V or 230V).
- After confirming the correct voltage is selected, connect the AC power (IEC connector) and power the unit on.
❗ DO NOT UNDER ANY CIRCUMSTANCES OPERATE THE UNIT WITH THE WRONG VOLTAGE SELECTED. DOING SO MAY RESULT IN SERIOUS DAMAGE TO YOUR SPEAKER SYSTEM WHICH WILL NOT BE COVERED BY WARRANTY.
Fuse Replacement
The EON Sub G2 has no user-serviceable fuses. Fuse failure typically indicates a problem requiring service by a competent technician.
Troubleshooting
| Symptom | Likely Cause | What to do |
|---|---|---|
| No sound | Speaker not connected to active AC power. Power not switched on. | Verify that speaker is connected and that the circuit is on. Switch on power and verify that power LED is on. |
| No sound, speaker is connected to working AC power but won't come on. | Speaker power cable is faulty or improperly connected. |
|
| No sound. Speaker comes on. SIGNAL LED does not illuminate. | Signal source (mixer, instrument, etc.) is not sending. Faulty cables and connections. |
|
| Signal sounds distorted and very loud, PEAK light is lit most of the time. | Excessive input signal, trying to exceed the capabilities of the speakers. |
|
| Signal sounds distorted even at moderate volumes, PEAK light is not lit. | Mixer or other source is overdriven | Review the Owner's Manual for your mixer and adjust controls as needed: Input sensitivity (gain), Channel faders, Master faders. |
| Hum or Buzz that increases or decreases when the mixer level controls are moved. | Improper A/C ground or faulty equipment connected to mixer input | Disconnect or mute channels one at a time to isolate the problem. Refer to the owner's manual of the faulty equipment for troubleshooting help. |
| Hum or Buzz | Faulty cable between source equipment and mixer. Improper A/C grounding, ground loops. Excessively long unbalanced cable run. |
|
| Speakers feedback and howl when the microphone volume is turned up | Microphones are pointed into the speakers. Equalizer settings are incorrect. Excessive gain. |
|
JBL Limited Warranty
The JBL Limited Warranty on professional sound products (except for loudspeaker enclosures) remains in effect for five years from the date of the first consumer purchase. JBL amplifiers are warranted for three years from the date of original purchase. Enclosures and all other JBL products are warranted for two years from the date of original purchase.
Who Is Protected by This Warranty?
Your JBL Warranty protects the original owner and all subsequent owners so long as: A.) Your JBL product has been purchased in the Continental United States, Hawaii or Alaska. (This Warranty does not apply to JBL products purchased elsewhere except for purchases by military outlets. Other purchasers should contact the local JBL distributor for warranty information.); and B.) The original dated bill of sale is presented whenever warranty service is required.
What is Covered by the JBL Warranty?
Except as specified below, your JBL Warranty covers all defects in material and workmanship. The following are not covered: Damage caused by accident, misuse, abuse, product modification or neglect; damage occurring during shipment; damage resulting from failure to follow instructions contained in your Instruction Manual; damage resulting from the performance of repairs by someone not authorized by JBL; claims based upon any misrepresentations by the seller; any JBL product on which the serial number has been defaced, modified or removed.
Who Pays for What?
JBL will pay all labor and material expenses for all repairs covered by this warranty. Please be sure to save the original shipping cartons because a charge will be made if replacement cartons are requested. Payment of shipping charges is discussed in the next section of this warranty.
How to Obtain Warranty Performance
If your JBL product ever needs service, write or telephone us at JBL Incorporated (Attn: Customer Service Department), 8500 Balboa Boulevard, PO. Box 2200, Northridge, California 91329 (818-893-8411). We may direct you to an authorized JBL Service Agency or ask you to send your unit to the factory for repair. Either way, you'll need to present the original bill of sale to establish the date of purchase. Please do not ship your JBL product to the factory without prior authorization. If transportation of your JBL product presents any unusual difficulties, please advise us and we may make special arrangements with you. Otherwise, you are responsible for transporting your product for repair or arranging for its transportation and for payment of any initial shipping charges. However, we will pay the return shipping charges if repairs are covered by the warranty.
Limitation of Implied Warranties
ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY.
EXCLUSION OF CERTAIN DAMAGES
JBL'S LIABILITY IS LIMITED TO THE REPAIR OR REPLACEMENT, AT OUR OPTION, OF ANY DEFECTIVE PRODUCT AND SHALL NOT INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND/OR DO NOT ALLOW THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
JBL Professional Contact Information
Mailing Address
8500 Balboa Blvd.
Northridge California 91329
Customer Service
Monday through Friday 8:00am - 5:00pm Pacific Coast Time
In the U.S.A. (800) 8JBLPRO (800.852.5776)
On the World Wide Web
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