Synchros S100i - Headphones JBL - Free user manual and instructions

Product Type	In-ear headphones with inline remote and microphone
Brand	JBL
Model	Synchros S100i
Color	Black (typical)
Driver Size	9mm
Frequency Response	10Hz - 22kHz
Impedance	16 ohms
Sensitivity	108dB
Maximum Input Power	30mW
Connector	3.5mm gold-plated plug
Cable Length	1.2m (47 inches)
Weight	14g (0.5 oz) without cable
Inline Remote	3-button remote with microphone, compatible with Apple devices
Compatibility	iPhone, iPod, iPad, and other devices with 3.5mm jack
Ear Tips	Silicone ear tips in multiple sizes (S, M, L) included
Carrying Case	Yes, included
Warranty	1 year limited
Cleaning Instructions	Wipe with a dry cloth; do not use liquids or abrasive cleaners
Safety	Avoid prolonged use at high volume to prevent hearing damage
Repairability	Cable and ear tips are replaceable; contact JBL support for service

Frequently Asked Questions - Synchros S100i JBL

Are the JBL Synchros S100i headphones compatible with Android devices?

Yes, they have a standard 3.5mm jack, but the inline remote functions (volume, play/pause) are optimized for Apple devices. Basic audio and call functions work on Android.

How do I clean my JBL Synchros S100i headphones?

Use a soft, dry cloth to wipe the exterior. For ear tips, remove them and rinse with mild soap and water, then dry completely before reattaching.

Can I replace the ear tips?

Yes, the ear tips are detachable and can be replaced with standard in-ear silicone tips. JBL offers replacement tips.

What is the warranty period for JBL Synchros S100i?

JBL typically offers a 1-year limited warranty against defects in materials and workmanship.

Do the headphones have a built-in microphone?

Yes, the inline remote includes a microphone for hands-free calling.

How do I pair the headphones with my iPhone?

These are wired headphones. Simply plug the 3.5mm connector into your iPhone's headphone jack. If you have an iPhone 7 or later without a headphone jack, use a Lightning-to-3.5mm adapter.

What is the cable length?

The cable is approximately 1.2 meters (47 inches) long.

Are the headphones noise-cancelling?

No, the Synchros S100i are passive noise-isolating in-ear headphones. They block some ambient noise through the ear tips but do not have active noise cancellation.

What should I do if the sound is only coming from one side?

Check the connection: ensure the plug is fully inserted. Also, inspect the cable for damage. If the issue persists, contact JBL support for possible repair or replacement.

Can I use these headphones for sports?

They are not specifically designed for sports; they lack sweat resistance and may not stay securely in place during vigorous activity. Consider JBL's sport series for workout use.

USER MANUAL Synchros S100i JBL

THANK YOU FOR CHOOSING JBL

For more than 50 years, JBL has been involved in every aspect of music and film recording and reproduction, from live performances to the recordings you play in your home, car or office.

We're confident that the JBL loudspeaker you have chosen will provide every note of

enjoyment that you expected – and that when you think about purchasing additional audio equipment for your home, car or office, you will once again choose JBL.

Please take a moment to complete the enclosed profile card. It enables us to keep you posted on our

latest advancements, and helps us to better understand our customers and build products that meet their needs and expectations.

JBL Consumer Products

Technical line drawing of a multi-tiered speaker chamber with concentric circles and mounting holes (no text or symbols)

OWNER'S GUIDE

PRODUCT LINE: STUDIO SERIES

MODEL

NUMBER:

S-CENTER

DESIGN GOAL: Bring the thrill of live performance and movie sound to the home environment by calling on JBL's professional engineering leadership.

TWEETER TYPE: Pure-titanium dome with EOS™ waveguide

WOOFER TYPE: Cast-aluminum basket with HeatScape™ motor structure

CROSSOVER NETWORK: Straight-Line Signal Path™ (SSP)

PORT DESIGN: FreeFlow™ flared

PROFESSIONAL REFERENCE: Studio Monitor

JBL

SPEAKER PLACEMENT

Proper placement of the speakers is an important step in obtaining the most realistic soundstage possible. These recommendations are for the optimum placement of the

loudspeakers. Use these placement recommendations as a guide. Slight variations will not diminish your listening pleasure.

The Studio Series S-CENTER loudspeaker is video-shielded and can safely be placed near a television.

The S-CENTER is designed to complement all of the Studio Series loudspeakers. It is the ideal way to re-create the cinematic experience in your home.

SPEAKER CONNECTIONS

CONNECTION TIPS

Two parallel conductors with shaded insulation, placed on a grid background (no text or symbols)

Speakers and electronics terminals have corresponding (+) and (−) terminals. It is important to connect both speakers identically: (+) on the speaker to (+) on the amplifier and (−) on the speaker to (−) on the amplifier. Wiring “out of phase” results in thin sound, weak bass and a poor stereo image.

Speaker Outputs

TROUBLESHOOTING

If there is no sound from any of the speakers:

• Check that receiver/amplifier is on and that a source is playing.
• Review proper operation of your receiver/amplifier.

If the system plays at low volumes but shuts off as volume is increased:

- Check all wires and

connections between receiver/amplifier and speakers.

• Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured.
• If more than one pair of main speakers is being used, check the minimum impedance requirements of your receiver/amplifier.

If there is no sound from the center speaker:

• Make sure that your receiver's “Center-Channel” mode is in the "Normal" or "Wide" position. If it is in the "Phantom" position, the center speaker will not play.
• Check all connections between processor/amplifier and the center speaker.

SPECIFICATIONS

S-CENTER

Description: 3-Way dual 5" center

Maximum Recommended

Amplifier Power*: 150W

Nominal Impedance: 8 Ohms

Sensitivity (2.83V/1m): 91dB

Frequency Response (-3dB): 80Hz - 20kHz

Crossover Frequencies: 800, 3200Hz

High-Frequency Transducer: 1" Pure-titanium dome, with rubber surround, shielded; Elliptical Oblate Spheroidal™ (EOS) waveguide

Midrange Transducer: 4" PolyPlas™ (polymer-coated cellulose fiber) cone, rubber surround, shielded; Linear Field Proximity™ (LFP) bezel

Low-Frequency Transducer(s): 5-1/2" PolyPlas™ (polymer-coated cellulose fiber) cone, rubber surround, SFG™, magnetic shorting rings, high-temp oversized Kapton® voice coil, HeatScape™ motor structure, cast-aluminum baskets, shielded

Baffles: Low Diffraction, IsoPower™

Port: FreeFlow™ flared

Network: Straight-Line Signal Path™ (SSP)

Terminals: All-metal, gold-plated 5-way binding posts

Dimensions (H x W x D): 7-7/8" x 20-1/2" x 9" 200mm x 521mm x 229mm

Weight: 15lbs, 6.8kgs

Declaration of Conformity

We, JBL Europe A/S

Kongevejen 194B

DK-3460 Birkerød

DENMARK

declare in own responsibility, that the loudspeaker

described in this owner's manual is in compliance with

technical standards:

EN 50081-1:1992

EN 50082-1:1992

Steen Michaelsen

JBL Europe A/S Birkerød. DENMARK. 8/99

*The maximum recommended amplifier power rating will ensure proper system headroom to allow for occasional peaks. We do not recommend sustained operation at these maximum power levels.

Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications unless otherwise stated.

OWNER'S GUIDE		JBL	PRO SOUNDCOMES HOME ^TM
PRODUCT LINE:STUDIO SERIES
MODEL NUMBER:S-CENTER		JBL Consumer Products250 Crossways Park Drive, Woodbury, NY 117978500 Balboa Boulevard, Northridge, CA 91329800-336-4JBL (4525) (USA only)www.jbl.com
DESIGN GOAL:Bring the thrill of live performance and movie sound tothe home environment bycalling on JBL's professional engineering leadership.
TWEETER TYPE:Pure-titanium dome with EOS ^TM waveguide
WOOFER TYPE:Cast-aluminum basket with HeatScape ^TM motor structure		©1999 JBL, Incorporated. JBL is a registered trademarkof JBL, Incorporated.
CROSSOVER NETWORK:Straight-Line Signal Path ^TM (SSP)
PORT DESIGN:FreeFlow ^TM flared		Part No. S-CTR O/G
PROFESSIONAL REFERENCE:Studio Monitor		H A Harman International Company