Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your JBL Professional CSS-1S/T Compact Two-Way Loudspeaker. The CSS-1S/T is designed for versatile audio applications, offering a 5.25-inch low-frequency speaker and a 0.75-inch polycarbonate dome tweeter for full-range sound reproduction. It supports both 100V and 70V distributed speaker lines, as well as an 8 Ohm direct mode, making it suitable for various sound systems including foreground music, background music, paging, home stereo, and home theater setups. Please read this manual thoroughly before using the product to ensure optimal performance and safety.
Safety Information
Observe the following safety precautions to prevent damage to the unit and ensure user safety:
- Power Source: Ensure the power source matches the speaker's requirements before connection. Incorrect voltage can cause damage.
- Ventilation: Do not block ventilation openings. Adequate airflow is necessary to prevent overheating.
- Moisture: Do not expose the speaker to rain or moisture. This product is not waterproof.
- Placement: Place the speaker on a stable surface or mount securely using the provided bracket. Avoid locations with excessive vibration or direct sunlight.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
- Cables: Use appropriate gauge speaker wire for connections to prevent signal loss or damage.
What's in the Box
Upon unpacking, verify that all items listed below are present and in good condition:
- JBL Professional CSS-1S/T Compact Two-Way 100V/70V/8-Ohm Loudspeaker (Pair)
- Wall Mount Brackets (Pair)
Product Overview
The JBL Professional CSS-1S/T loudspeaker is engineered for high-quality audio delivery in a compact form factor. It features a 5.25-inch low-frequency driver and a 0.75-inch polycarbonate dome tweeter, providing a frequency range of 85 Hz to 18 kHz. The robust polypropylene enclosure ensures durability for various indoor applications.
Image: A pair of JBL CSS-1S/T loudspeakers, showcasing their compact design and front grille.
Key features include:
- Flexible Power Options: Supports 100V and 70V distributed speaker lines with multiple tap selections (10W, 5W for 100V; 10W, 5W, 2.5W for 70V), configurable via a rear panel switch.
- 8 Ohm Direct Mode: Handles 60 Watts of continuous average pink noise for robust performance.
- Superior Sound Quality: Designed for clear audio reproduction for both music and speech.
- Durable Construction: Features a rugged polypropylene enclosure for long-lasting use.
- Versatile Mounting: Can be placed on a flat surface or wall-mounted using the included bracket.
Image: Front view of two JBL CSS-1S/T loudspeakers, highlighting the JBL logo and grille pattern.
Setup
1. Mounting Options
The CSS-1S/T loudspeakers can be installed in two primary ways: tabletop placement or wall mounting using the included brackets.
- Tabletop Placement: Simply place the speakers on a stable, flat surface. Ensure adequate space around the speakers for optimal sound dispersion.
- Wall Mounting: Use the provided ball-type wall mount brackets for secure installation. Follow these steps:
- Identify a suitable wall location, ensuring it can support the weight of the speaker.
- Attach the wall bracket securely to the wall using appropriate hardware (not included, depending on wall material).
- Attach the speaker to the bracket, ensuring it is firmly locked into place. Adjust the angle for desired sound direction.
Image: Visual representation of the JBL CSS-1S/T loudspeaker's dimensions: 9.0" Height x 6.3" Width x 5.6" Depth.
Image: Side view of a single JBL CSS-1S/T loudspeaker, showing its profile and compact form.
2. Electrical Connections
The CSS-1S/T features spring-loaded terminals for secure and easy wire connections. It supports three operational modes: 100V distributed line, 70V distributed line, and 8 Ohm direct.
- Wire Preparation: Strip approximately 1/2 inch (12mm) of insulation from the ends of your speaker wires.
- Connecting Wires: Press down on the spring-loaded terminal tab, insert the stripped wire end, and release the tab to secure the connection. Ensure correct polarity (+ to + and - to -).
- Mode Selection: On the rear panel of each speaker, locate the multi-tap switch. Select the appropriate setting (100V, 70V, or 8 Ohm) to match your amplifier or audio system.
- For 100V distributed lines, select 10W or 5W taps.
- For 70V distributed lines, select 10W, 5W, or 2.5W taps.
- For direct 8 Ohm connection, select the 8 Ohm setting.
Image: Rear view of a JBL CSS-1S/T loudspeaker, showing the spring-loaded terminals and the multi-tap voltage selection switch.
Operating Instructions
Once properly installed and connected, operating your JBL CSS-1S/T loudspeakers is straightforward:
- Power On: Turn on your amplifier or audio source.
- Volume Control: Adjust the volume level from your amplifier or audio source to a comfortable listening level.
- Sound Check: Play audio through the speakers to confirm proper functionality and sound quality.
- Tap Selection (if applicable): If using 70V or 100V distributed lines, ensure the tap setting on the rear of each speaker is correctly chosen for the desired power output and system impedance. Adjusting this setting while the amplifier is on may cause a brief interruption in audio.
Maintenance
The JBL CSS-1S/T loudspeakers require minimal maintenance to ensure long-term performance:
- Cleaning: Wipe the exterior of the speakers with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture.
- Grille Care: The metal grille can be gently cleaned with a soft brush or vacuum cleaner to remove dust.
- Connections: Periodically check speaker wire connections to ensure they remain secure.
- Environment: Avoid exposing the speakers to extreme temperatures, humidity, or direct sunlight for extended periods.
Troubleshooting
If you encounter issues with your JBL CSS-1S/T loudspeakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers | Loose connections, incorrect tap setting, amplifier off/faulty, incorrect source selection. | Check all wire connections. Verify the tap switch setting matches your amplifier. Ensure amplifier is on and source is selected correctly. |
| Distorted or unclear sound | Overdriven amplifier, incorrect tap setting, damaged speaker wire, faulty audio source. | Reduce amplifier volume. Confirm tap setting is appropriate for power output. Inspect speaker wires for damage. Test with a different audio source. |
| One speaker not working | Loose connection to one speaker, faulty speaker wire, individual speaker fault. | Check connections for the non-working speaker. Swap speaker wires to determine if the issue is with the speaker or the wiring/amplifier channel. |
If the problem persists after attempting these solutions, please contact JBL Professional customer support.
Specifications
Detailed technical specifications for the JBL Professional CSS-1S/T Loudspeaker:
| Feature | Specification |
|---|---|
| Model Name | CSS-1S/T |
| Speaker Type | Satellite, Two-Way |
| Woofer Diameter | 5.25 Inches |
| Tweeter Diameter | 0.75 Inches |
| Frequency Range (-10 dB) | 85 Hz – 18 kHz |
| Frequency Response (+/- 3 dB) | 120 Hz – 16 kHz |
| Sensitivity (1W, 1m) | 86 dB SPL |
| Nominal Coverage | 120 x 120 degrees (Horizontal x Vertical) |
| Power Handling (8 Ohm Direct) | 60 Watts (Continuous Average Pink Noise) |
| Impedance | 8 Ohm (Direct Mode) |
| Input Voltage (Distributed Lines) | 70V / 100V |
| 70V Taps | 10W, 5W, 2.5W |
| 100V Taps | 10W, 5W |
| Connectivity Technology | Spring-loaded terminals |
| Mounting Type | Wall Mount, Tabletop |
| Enclosure Material | Rugged Polypropylene |
| Color | Black |
| Product Dimensions (each) | 9.0" H x 6.3" W x 5.6" D (229mm x 160mm x 142mm) |
| Item Weight (each) | 4.5 lbs (2.04 kg) |
| Water Resistance Level | Water Resistant (Not Waterproof) |
Warranty
This JBL Professional CSS-1S/T loudspeaker is covered by a Manufacturer Limited Warranty. Please refer to the warranty documentation included with your product or visit the official JBL Professional website for detailed terms and conditions regarding coverage, duration, and claims procedures.
Support
For further assistance, technical support, or service inquiries, please contact JBL Professional customer support. Contact information can typically be found on the JBL Professional website or in the product packaging. When contacting support, please have your product model number (CSS-1S/T) and purchase information readily available.
