JBL Control 1X/1Xtreme/One
JBL Loudspeaker Troubleshooting/Repair Tips
Most customers prefer to do simple loudspeaker repairs themselves. By following the steps below, a majority of loudspeakers can be returned to their original factory performance with minimum effort. Choose the example that best describes the problem you are experiencing.
Problem 1: No sound or distorted sound from one loudspeaker in a pair (or set)
Connect the dead/distorting loudspeaker to a different amplifier channel (one that had a functioning loudspeaker connected to it). If it functions normally, the problem is not loudspeaker-related. If the loudspeaker still makes no sound or sounds distorted, a wire may have become loose or disconnected, the network (also known as a crossover) may be defective, the drivers (woofer, tweeter, etc.) may be defective or, in very rare cases, all may be defective. Refer to the wiring diagram and exploded view below. The network is a small circuit board found on the inside of the terminal cup, or mounted to an inside wall of the enclosure. It sends low-frequency sounds to the woofer, high-frequency sounds to the tweeter and, if applicable, mid-frequency sounds to the midrange driver. Make sure all wires are secure and connected. Look for components on the network that look burnt, bulged, or abnormal. If everything looks normal, connect the network to the drivers from another matching loudspeaker. MAKE SURE you attach the correct wires to each driver mid- and low-frequency sounds can damage the tweeter! If there is still no sound or distorted sound, the network is defective. If there is clean undistorted sound, the drivers are defective.
Problem 2: No sound or distorted sound from one or more (but not all) drivers in an enclosure
Remove the problem driver(s) from the enclosure and make sure all wires are secure and connected. If they are, proceed with the following test: Woofer or midrange driver Connect the drivers + and input terminals directly to the loudspeaker wires from your receiver/amplifier and play some music at a reasonable volume. If the driver now sounds normal (produces a clean, undistorted sound), the network is most likely defective. Tweeter Replace the tweeter with a functioning tweeter from another loudspeaker. If the tweeter now functions normally (produces clean, undistorted sound), the original tweeter is defective. If the replacement tweeter also sounds distorted or produces no sound, the network is most likely defective.
Problem 3: Loudspeakers distort, rattle or pop at higher volumes
This is usually NOT a loudspeaker problem. Common causes are too much power (playing the loudspeakers too loud and causing them to distort), an amplifier with not enough power (the amplifier cant produce the required volume without distorting), excessive equalization (turning the tone controls too far clockwise, and/or engaging the loudness/bass boost button on your receiver) or some combination of the above. If only one loudspeaker is exhibiting the problem, and youre confident that its not caused by too little power/too much power/excessive equalization, see solutions for Problems 1 and 2.

WIRING DIAGRAM

EXPLODED VIEW
Screw 3.5x10mm Black-Plated Control 1X/1Xtreme/One C1006X (NOT for SALE) Crossover Network EVA Gasket Black Screw 4x8mm Black-Plated
Front Baffle Black Screw T4x35mm Black-Plated

C1002X Tweeter

Die-Cast Alum. Safety Ring, Black
C1004X Metal Grille, Black C1004X-S Metal Grille, Silver Nut M5x0.8mm Zinc-Plated Nut, M4x0.7Px3t mm Zinc-Plated
Note: A Phillips screwdriver and 3mm Allen wrench (hex key) are required to service this product.
C1003X 4-1/2" Woofer Tweeter Diffuser Washer Spring Control 1X C1005X Control 1Xtreme C10028X Control One C10028A Logo Badge Grille Holding Ring on Grille Black
Screw 4x18mm Black-Plated
TO SERVICE THE CONTROL 1X/1XTREME/ONE 1. Remove the grille. 2. Remove all (6) 1-3/8" Allen-head screws holding the front baffle to the enclosure. 3. Separate the front baffle w/drivers from the enclosure.
DRIVER REMOVAL Both woofer and tweeter are bonded to the front baffle with adhesive. Unclip FASTON connectors from both woofer and tweeter. a) Woofer removal: Remove all (4) machine screws; rear nut can be held by long-nosed pliers while screws are turned. Apply heat gun (750) to area around woofer basket until adhesive softens enough to extract the woofer. b) Tweeter removal: Remove both (2) Phillips screws. Apply heat gun (750) to area around inside of cavity until adhesive softens enough to extract the tweeter. After removal, take care not to lose or misplace the small clear plastic diffuser should it become dislodged. CAUTION: Too much heat applied in one area too long could warp the front baffle. DRIVER REPLACEMENT Both woofer and tweeter must have a bead of adhesive applied to the outer rim only upon reassembly. Silicone sealer or rubber-to-metal cement is recommended.

Control SB210

Key Features:
2 x 250 mm (10 in.) Aluminum/ Ceramic Composite Cone Drivers 400 Watts Power Handling Fully Outdoor Capable Design SonicGuard Overload Protection 13 x M6 Suspension Inserts, Including Inserts for Optional UBracket AV Shielded Compact, Low Prole Design
The Control SB210 provides low frequency reinforcement for a wide variety of sound system applications. Its compact size, high output and outdoor capable design makes it one of the most versatile subwoofers in the installation market. The internal angled bafe allows for a large port opening and compact front dimensions without compromising driver size. The SB210 produces warm, punchy low-end sound. The Aluminum/Ceramic Composite Diaphragm 10" Drivers are rated for pink noise power handling of 200 Watts each, providing 400 Watts (1600 Watt peaks) of system power handling. The dual driver design also allows for stereo operation of the enclosure and provides great exibility when used with one of the optional network accessory kit. Choose the MTC-210-SAT network accessory to drive a full subwoofer/satellite system with one amplier. The network receives a stereo or mono source, and sends a high-passed 4-Ohm or 8-Ohm Satellite output signal for operation with other Control loudspeakers. ATC-210T-SAT network can be used in same manner when using a 70.7/100Volt distributed signal line. Included with the SB210 are four feet and four receptacles to allow oor and shelf mounting as well as reliable stacking of multiple units. The thirteen M6 insert points allow for installation using forged shoulder eyebolts for suspending the subwoofer. The Optional UBracket MTC-210UB allows for additional versatility in mounting. The High Impact PolyStyrene (HIPS) cabinet is available in black or white (SB210-WH) and is paintable. The thermoset composite-coated grille stands up to UV as well as humidity and direct exposure to water. The grille is backed with a combination of materials that, while acoustically transparent, prevent the intrusion of water into the cabinet even when hit directly, such as from rain or a sprinkler.
Dual 10" Indoor/Outdoor High Output Compact Subwoofer

Specications:

System: Frequency Range (-10 dB): 42 Hz - 200 Hz Frequency Response (-3 dB): 48 Hz - 120 Hz Power Capacity1: 800 Watts Continuous Program Power 400 Watts Continuous Pink Noise Nominal Sensitivity2: 95 dB, 1W @ 1m in half-space (2 loading) Max SPL @ 1m3: 122 dB (in half-space) Nominal Impedance: 8 Ohms Minimum Impedance: 7 Ohms at 100 Hz Transducers: Low Frequency: 2 x 250 mm (10 in.) dia., 50 mm (2 in.) edge wound ribbon voice coil, Aluminum/Ceramic Composite cone. Physical: Enclosure Material: High Impact PolyStyrene (HIPS) w/internal 8 mm polyurethane co-mold Grille: Thermoset composite coated steel, multi-layer Overload Protection: SonicGuard Environmental: IEC 529 IP-X5 rating. Exceeds MilSpec 810 for humidity, salt spray, temperature & UV. Passes Mil-STd-202F for salt spray. Termination: Screw-down terminal strip, zinc plated copper base, nickelplated metal screws/washers. Accepts up to 9 mm outside, 4 mm inside open lug (#6, #8 or #10 lug), plus bare wire (up to 12 AWG/2.5mm2). Colors: Black or white (-WH) Dimensions (H x W x D): 355 x 590 x 570 mm (14 x 23.3 x 22.5 in.) Net Weight (ea): 17.1 kg (38 lb) Shipping Weight (ea): 19.4 kg (43 lb) Included Accessories: 1 pc MTC-PC4 input panel cover, 4 pcs MTC-210FT oor standing foot, 4 pcs MTC-210RT foot receptacle for stacking. Optional Accessories: MTC-210UB U-Bracket MTC-210-SAT stereo/mono high passing network with Satellite outputs MTC-210T mono network with transformers for 70.7/100V distributed line systems. Taps at 250W, 125W, 62W (plus 31W for 70.7V only). MTC-210T-SAT stereo/mono high passing network with Satellite outputs and transformers for 70.7/100-Volt distributed line systems. Taps at 125W, 62W, 31W (plus 15W for 70.7V only).
Continuous Pink Noise rating is IEC-shaped pink noise with a 6 dB crest factor for 100 hours continuously. Continuous program power is dened as 3 dB above the Continuous Pink Noise Rating and is a conservative expression of the systems ability to handle normal speech and music program material. Half-space, averaged 60 Hz to 80 Hz Calculated from sensitivity and power handling. Power compression is not considered.
JBL continually engages in research related to product improvement. Some materials, production methods and design renements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specications unless otherwise stated.

Control SB210 Dual 10" Indoor/Outdoor High Output Compact Subwoofer
Control SB210 frequency response, (1W, 1m) at two-boundary junction ( loading, dotted line) and at three-boundary junction (/2 loading, solid) with recommended band-limiting lters (30 Hz high-pass 2nd order Butterworth, and 120 Hz low-pass 2nd order Butterworth).

Dimensions

22.5 [570]

23.3 [590]

14.0 [355]
Dimensions in inches [mm]
JBL Professional 8500 Balboa Boulevard, P.O. Box 2200 Northridge, California 91329 U.S.A.
A Harman International Company Copyright 2004 JBL Professional

SS SB210 CRP 10M 05/04