1. Product Overview & Introduction
The Crestron SAROS IC4P-W is a revolutionary in-ceiling speaker featuring advanced Balanced Mode Radiator (BMR) technology. This passive full-range speaker is engineered to deliver exceptional audio clarity with significantly wider coverage angles than traditional cone-based speakers, making it ideal for commercial and residential audio installations.
Key Product Identifier
Model: SAROS IC4P-W
Full Name: Saros® 3 in. Passive Full-Range In-Ceiling Speaker, White, Textured
Manufacturer: Crestron Electronics, Inc.
Regulatory Model: M202010001
Revolutionary BMR Technology
Unlike conventional speakers that use separate woofers and tweeters, the SAROS IC4P-W employs a single 2.83-inch (72mm) Balanced Mode Radiator transducer. This innovative technology provides several key advantages:
🔊 Enhanced Clarity
BMR technology delivers superior audio clarity across the entire frequency range without the phase issues common in multi-driver systems
📐 Wider Dispersion
170° coverage for speech and 140° for music - significantly wider than traditional conical drivers
⚡ Full-Range Performance
Single transducer handles 90 Hz to 30 kHz frequency range - eliminating crossover complexity
🎯 Consistent Coverage
Uniform sound distribution throughout the listening area with minimal dead spots
Primary Applications
🍽️ Restaurants & Hospitality
Background music and announcements with exceptional speech intelligibility
🛍️ Retail Spaces
Clear messaging and music throughout stores with wide coverage patterns
🏛️ Houses of Worship
High-quality sound reinforcement with excellent vocal clarity
🏫 Universities & Offices
Professional audio for conference rooms, classrooms, and open office spaces
Key Features
- BMR Transducer: 2.83 in. (72mm) Balanced Mode Radiator for full-range performance
- Wide Frequency Response: 90 Hz to 30 kHz (±3 dB) covers full audio spectrum
- Excellent Sensitivity: 86 dB @ 1W/1m provides efficient audio output
- Dual Input Options: 2-pin terminal block or RJ-45 connector for flexible connectivity
- Plenum Rated: UL 2043 certified integral metal back can
- Magnetic Grille: Tool-free installation with powerful magnets
- Toggle Clamp Mounting: 2-step clamps for quick installation up to 2.36" (60mm) thickness
- Compact Design: 4.28" (109mm) mounting depth, 7.49" (191mm) baffle diameter
2. Technical Specifications
Acoustic Performance
| Specification | Value |
|---|---|
| Transducer | 2.83 in. (72 mm) Balanced Mode Radiator (BMR) |
| Frequency Response | 90 Hz to 30 kHz (±3 dB) |
| Sensitivity @ 1W/1m | 86 dB |
| Coverage - Speech (up to 4 kHz) | 170° conical |
| Coverage - Music (up to 8 kHz) | 140° conical |
| BMR Power Handling | 25 W maximum |
Electrical Specifications & Power Output
| Configuration | Maximum Power Output |
|---|---|
| External Amplifier (2-pin input) | 25 W |
| SAROS DM-NAX-IC4A-W (1 speaker) | 10 W |
| SAROS DM-NAX-IC4A-W (2 speakers total) | 6.5 W per speaker |
| SAROS DM-NAX-IC4A-W (3 speakers total) | 4.5 W per speaker |
Input Connections
| Input Type | Specifications |
|---|---|
| 2-Pin Audio Input | 2-pin 5mm detachable terminal block For use with external amplifier Impedance: 8 Ohms (7.4 Ohms nominal) Maximum Wire Size: 12 AWG |
| RJ-45 Audio Input | 8-pin RJ-45 connector, female For use with SAROS DM-NAX-IC4A-W only Uses standard CAT5e or greater cable Maximum cable length: 32 ft (10 m) |
⚠️ CRITICAL INPUT WARNING
DO NOT connect both the 2-pin terminal block input and RJ-45 input simultaneously! Connecting both inputs may cause permanent damage to the speaker driver. Only one input should be used at a time. The two inputs are mutually exclusive.
Physical Specifications
| Feature | Details |
|---|---|
| Baffle Diameter | 7.49 in. (191 mm) not including mounting clamps |
| Back Can Diameter | 6.33 in. (161 mm) not including mounting clamps |
| Mounting Depth | 4.28 in. (109 mm) |
| Total Depth (with grille) | 4.50 in. (115 mm) |
| Recommended Cutout Diameter | 6.5 in. (165 mm) |
| Weight | 2.35 lb (1.06 kg) |
| Enclosure | Painted steel, plenum-rated 0.75 in. (19 mm) conduit knockout on top and sides Cable clamp included |
| Baffle Material | ABS UL 94V-0 plastic |
| Grille | Steel with white textured finish Magnetically held (no tools required) Safety tether included |
| Mounting | 4 integral 2-step toggle clamps 2.36 in. (60 mm) maximum clamping thickness Tile bridge included for drop-tile ceiling |
3. Installation Procedures
⚠️ Safety Requirements
Installation should be performed by qualified personnel only. Always follow local electrical codes and building regulations. Use appropriate personal protective equipment.
Pre-Installation Planning
- Verify ceiling construction and determine if drywall or drop-tile installation
- Check for obstructions (pipes, ducts, joists, wiring) using stud finder
- Ensure minimum 4.28" (109mm) depth clearance above ceiling
- Plan speaker placement for optimal coverage (consider 170°/140° patterns)
- Determine input source: external amplifier or SAROS DM-NAX-IC4A-W
- Verify wire gauge and cable routing requirements
- For RJ-45 connections, ensure CAT5e or better cable (straight-through wiring only)
💡 Installation Tip
Before cutting the final mounting hole, cut a small 45° angle test hole and use bent wire to check for obstructions. This technique allows easy repair if relocation is needed.
Installation Steps
- Locate and Mark Installation Position: Use the supplied template to trace the mounting hole outline on the ceiling. For drop-tile ceilings, remove the tile and place it on a flat surface before marking. Recommended cutout diameter is 6.5 inches (165mm).
- Check for Obstructions: Cut a small exploratory hole at 45° angle. Use stiff wire bent into an "L" shape to check for clear space. Ensure wire rotates freely in complete circle and confirms adequate depth clearance of at least 4.28 inches.
- Cut the Final Mounting Hole: If no obstructions are found, use the template to cut the final mounting hole at 90° to the ceiling surface. Use appropriate tools (drywall saw for drywall, appropriate cutter for ceiling tiles). Ensure clean, precise cuts.
- Route Audio Cable: Run appropriate cable from source to speaker location:
- For External Amplifier: Run speaker cable (12 AWG maximum) observing local codes
- For SAROS DM-NAX-IC4A-W: Run CAT5e or better cable (straight-through wiring ONLY, maximum 32 ft/10m)
- Prepare Toggle Clamps: The toggle clamps have two positions for different ceiling thicknesses:
- Lower Position: Standard ceiling thickness (default)
- Upper Position: Extra thick surfaces up to 2.36 in. (60mm)
- Install Tile Bridge (Drop-Tile Ceilings Only): For drop-tile installations, install the included tile bridge. The bridge is adjustable to allow off-center positioning and folds to fit through the cutout. Position bridge to support speaker weight independently of ceiling grid.
- Make Electrical Connections: Remove the rear metal end cap by unscrewing the screws.
- For 2-Pin Input: Remove the knockout for terminal block. Strip wire ends 0.25-0.50 in. (6-12mm), route through knockout, connect to terminal block (observe polarity), tighten screws securely.
- For RJ-45 Input: Verify cable uses straight-through wiring (NOT crossover). Connect RJ-45 cable from SAROS DM-NAX-IC4A-W output to speaker RJ-45 input.
- Secure Cable and Replace Cover: Route cable through the cable clamp. Tighten cable clamp to secure cable (do not overtighten). Replace the metal end cap and secure with screws.
- Install Speaker into Ceiling: With toggle clamps turned inward, carefully insert the speaker into the mounting hole. Hold speaker against ceiling and begin tightening the four front screws. Tighten evenly in a cross pattern to ensure proper seating.
- Attach Safety Tether (If Required): If required by local code or for additional safety, attach the optional safety tether kit (SPKA-ST-15, sold separately) from the speaker's rigging point to building structure.
- Install Grille: Align the magnetic grille with the speaker baffle. The powerful magnets will hold it securely in place - no tools or hardware required. Attach grille safety tether if desired.
- Test and Commission: Apply power to system. Test audio output at various levels. For RJ-45 connections, verify LED indicator behavior (solid = paired, blinking = identify mode, off = not paired or disabled).
⚠️ CROSSOVER CABLE WARNING
CRITICAL: Only straight-through wiring should be used for CAT5e cable connections between SAROS DM-NAX-IC4A-W and SAROS IC4P-W speakers. DO NOT use crossover cables! Crossover wiring will cause damage to the LED components of the speaker. Always perform pin-out and continuity testing before installation to verify straight-through wiring.
4. Configuration & Operation
Understanding Dual Input Options
The SAROS IC4P-W offers two mutually exclusive input methods, each designed for specific applications:
2-Pin Terminal Block Input
Use Case: Traditional amplifier connections
Impedance: 8 Ohms (7.4 Ohms nominal)
Max Power: 25 W
Wire Size: Up to 12 AWG
Advantages: Maximum power output, standard installation, familiar wiring
RJ-45 Connector Input
Use Case: SAROS DM-NAX-IC4A-W integration only
Cable Type: CAT5e or better (straight-through)
Max Length: 32 ft (10 m)
Max Power: 10 W (single speaker), 6.5 W (2 speakers), 4.5 W (3 speakers)
Advantages: Simplified wiring, built-in system integration, LED status indication
SAROS DM-NAX-IC4A-W Integration
When used with the SAROS DM-NAX-IC4A-W networked amplified speaker, the IC4P-W becomes part of an integrated Crestron audio system:
- Power Distribution: DM-NAX unit provides power to connected passive speakers via RJ-45
- Network Control: Speakers can be controlled via Crestron control systems
- LED Status Indicator: White LED shows pairing status and identify mode
- Expandability: Up to 3 IC4P-W speakers per DM-NAX-IC4A-W output
- Simplified Installation: Single CAT5e cable carries both audio and control
LED Indicator Behavior (RJ-45 Mode Only)
| LED State | Meaning |
|---|---|
| Solid White | Device is paired with SAROS DM-NAX-IC4A-W and operating normally |
| Blinking White | Device is in identify mode (activated from DM-NAX web interface) |
| Off | Not paired with DM-NAX, or LED disabled via DM-NAX configuration |
Power Output Based on Configuration
When connected to a SAROS DM-NAX-IC4A-W, power output per speaker varies based on the number of connected speakers:
| Configuration | Power per Speaker | Total System Power |
|---|---|---|
| 1 x IC4P-W | 10 W | 10 W |
| 2 x IC4P-W | 6.5 W each | 13 W total |
| 3 x IC4P-W | 4.5 W each | 13.5 W total |
Cable Length Signal Loss
When using RJ-45 connections, some signal level loss occurs based on cable length and wire gauge. LED dimming is also expected as cable length increases. For optimal performance, keep cable runs as short as practical and use quality CAT5e or CAT6 cable.
Best Practices for System Design
- Plan speaker spacing based on 170° coverage for speech applications
- Use 140° coverage pattern for music-focused installations
- Avoid placing speakers directly above reflective surfaces for optimal sound quality
- Consider ceiling height when calculating coverage area
- For multi-speaker systems, ensure adequate amplifier power for all speakers
- When using RJ-45 mode, distribute speakers evenly across DM-NAX outputs
- Label all connections clearly during installation for future maintenance
5. Safety & Compliance
Certifications & Standards
| Certification | Standard | Significance |
|---|---|---|
| FCC | Part 15 Class B | Electromagnetic interference compliance for residential use |
| IC | Class B | Industry Canada electromagnetic compatibility |
| CE | CE Marking | European Conformity - meets EU safety, health, and environmental requirements |
| UL | UL 2043 | Fire test for heat and visible smoke release in air-handling spaces (plenum rating) |
| Baffle Material | UL 94V-0 | Flame retardant plastic classification |
Regulatory Model Information
Regulatory Model: M202010001
This regulatory model designation is used for certification purposes and may be required for compliance documentation.
Plenum Installation Requirements
The SAROS IC4P-W features an integral metal back can that meets UL 2043 requirements for installation in plenum spaces (air-handling areas). When installing in plenums:
- Use only plenum-rated cables (CMP, CL2P, CL3P, or equivalent)
- For RJ-45 connections, use CBL-ZUMLINK-P-25 (Crestron plenum cable) or third-party plenum-rated CAT5 cable
- Route cables through the 0.75 in. (19mm) conduit knockouts on enclosure
- Ensure proper cable support and separation from HVAC components
- Follow all local fire codes and building requirements
- Document installation per authority having jurisdiction (AHJ) requirements
⚠️ Plenum Cable Requirement
When installing in air-handling spaces, plenum-rated cables are mandatory. Standard non-plenum cables emit toxic fumes when burned and are prohibited in plenum installations. Always verify cable ratings before installation.
Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | 32° to 104°F (0° to 40°C) |
| Humidity | 10% to 90% RH (non-condensing) |
| Operating Environment | Indoor use only |
Safety Best Practices
- Always de-energize circuits before making connections
- Follow local electrical codes and regulations
- Use appropriate personal protective equipment during installation
- Never exceed maximum power ratings (25W for external amp, variable for DM-NAX)
- Install safety tether (SPKA-ST-15) when required by code
- Ensure adequate structural support - speaker weighs 2.35 lb (1.06 kg)
- Keep magnetic grille away from sensitive electronic equipment and medical devices
- Verify toggle clamps are fully engaged before releasing speaker
- Test all connections before final grille installation
6. Troubleshooting & Maintenance
Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | Wrong input connected Crossover cable (RJ-45) Both inputs connected Amplifier issue |
Verify correct input is connected Check for straight-through wiring Disconnect one input source Test amplifier output |
| Low volume | Multiple speakers on DM-NAX Long cable run Incorrect polarity Amplifier underpower |
Check power distribution chart Shorten cable or upgrade gauge Verify +/- connections Increase amplifier power |
| Distorted audio | Amplifier clipping Excessive power Damaged BMR transducer Wrong input used |
Reduce amplifier gain Verify power ratings Inspect speaker for damage Disconnect both inputs check |
| LED not functioning (RJ-45 mode) | Crossover cable damage Not paired with DM-NAX LED disabled in config Cable too long |
Replace with straight-through cable Re-pair speaker to DM-NAX Check DM-NAX web UI settings Use cable ≤32 ft (10m) |
| Intermittent operation | Loose terminal connections Damaged cable Poor RJ-45 connection Toggle clamp issue |
Tighten terminal block screws Inspect and replace cable Reseat RJ-45 connector Verify clamps fully engaged |
| Grille won't stay attached | Magnets damaged Debris on baffle Grille warped |
Inspect magnet condition Clean baffle surface Replace grille if damaged |
⚠️ Troubleshooting RJ-45 Connections
If experiencing issues with RJ-45 input, always verify cable wiring first. Use a cable tester to confirm straight-through wiring. Remember: crossover cables will damage the speaker's LED components. If LED is damaged from crossover cable use, speaker may still function for audio but requires service.
Maintenance Procedures
Regular Maintenance Schedule
- Monthly (High-Traffic Areas): Visual inspection of grille for damage or debris, check for unusual sounds during operation
- Quarterly: Clean grille with soft cloth, inspect mounting security, verify LED operation (RJ-45 mode)
- Semi-Annual: Test audio output at various levels, inspect cable connections, clean dust from baffle area
- Annual: Full system test including frequency response check, inspection of back can and connections, verify toggle clamp engagement
Cleaning Procedures
- Use soft, dry cloth for grille cleaning - avoid abrasive materials
- For stubborn dirt, use slightly damp cloth with mild soap solution
- Never spray liquids directly onto speaker components
- Vacuum around speaker perimeter to remove dust accumulation
- Clean magnetic surfaces to ensure proper grille adhesion
When to Replace
Consider speaker replacement if:
- BMR transducer shows physical damage (tears, dents, separation)
- Audio quality degrades significantly despite troubleshooting
- Both inputs were accidentally connected causing damage
- Metal back can shows corrosion or structural damage
- Toggle clamps no longer hold speaker securely
Technical Support Resources
Crestron Website: www.crestron.com
Product Documentation: Available at www.crestron.com/support
True Blue Community: Online support forum for dealers and integrators
Training: Crestron Technical Institute (CTI) courses available
Dealer Locator: www.crestron.com/How-To-Buy/Find-a-Representative
Final Assessment
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