Raymarine B75 Med/High 20° Tranducer - Pair
Raymarine B75 Med/High 20° Tranducer - Pair — Product description
Upgrade your marine electronics setup with the precision and clarity that serious boaters demand. This dual-frequency CHIRP transducer pair delivers exceptional underwater visibility, making it easier to spot fish, structure, and bottom contours even in challenging conditions. Designed for thru-hull mounting on fiberglass or wood hulls, the low-profile bronze housing slips through the water with minimal drag, ensuring reliable performance without compromising your vessel's hydrodynamics.
Whether you're chasing trophy fish offshore or navigating tricky inlets, the medium and high-frequency channels work together to paint a vivid picture of what's below. The 20° tilt adapts perfectly to common hull angles, optimizing the beam for accurate depth readings and temperature sensing across a wide range of speeds.
Why This Transducer Pair Stands Out
Boaters who invest in quality sonar know that generic transducers fall short when it comes to detail and range. This setup shines with CHIRP technology, which transmits a continuous sweep of frequencies for sharper images than traditional fixed-frequency units. Here's what sets it apart:
- Versatile Dual-Channel Operation: Medium band (80-130 kHz) excels at deeper water scans with wider coverage, while high band (130-210 kHz) provides pinpoint resolution for shallow zones and precise fish targeting.
- Beam Width Optimized for Real-World Use: Medium offers 24° to 16° for broad searches; high delivers 15° to 9° for focused detail, adapting automatically to depth.
- Rugged Bronze Construction: Corrosion-resistant and low-profile (2" shaft diameter) for clean installation and long-term durability in saltwater environments.
- 600W Power Handling: Plenty of punch for clear returns at speed or in murky water, without overwhelming smaller sounder systems.
- Pair Convenience: Ideal for dual-station boats, redundancy, or port/starboard setups to eliminate dead zones caused by hull interference.
Users report seeing fish arches and wrecks with unprecedented clarity, turning casual outings into productive adventures. It's not just about specs—it's about confidence on the water.
Detailed Specifications
| Feature | Details |
|---|---|
| Type | Depth and Temperature, CHIRP Thru-Hull Pair |
| Tilt | 20° |
| Power | 600 Watts |
| Frequencies | Medium: 80-130 kHz; High: 130-210 kHz |
| Beam Widths | Medium: 24°-16°; High: 15°-9° |
| Housing | Bronze, 2" Diameter Shaft |
| Hull Material | Fiberglass or Wood |
| Cable | CP450C Standard Connector (Y-Splitter Included for Pair) |
Easy Installation and Peak Performance Tips
Installing a thru-hull transducer might sound intimidating, but this model's fairing block and tilt make it straightforward. Position it forward of the prop and keel line, roughly 1/4 to 1/3 of the hull length from the bow, at a 20° angle matching your deadrise. Fairing blocks (sold separately based on hull angle) streamline flow and boost high-speed accuracy.
Pro Tips for Best Results:
- Match the pair symmetrically: One port, one starboard to cover full under-hull area.
- Use marine sealant around the thru-hull fitting for a watertight bond.
- Calibrate beam overlap in your display settings for seamless dual-transducer fusion.
- At trolling speeds (under 10 knots), expect maximum detail; above 20 knots, medium band holds strong.
Maintenance is simple: Rinse with fresh water after saltwater use, inspect the face for marine growth, and store dry during off-seasons. With proper care, these hold up for years of heavy use.
Perfect for Every Boater
Recreational anglers love the high-frequency clarity for jigging over reefs. Offshore pros rely on medium CHIRP for bottom fishing in 500+ feet. Sailors appreciate the temp sensor for thermocline hunting. No matter your style, this pair reduces guesswork and maximizes catches.
Frequently Asked Questions
What hull types work best with this 20° tilt transducer pair?
It's optimized for fiberglass or wood hulls with a deadrise angle around 20°. Avoid aluminum or steel, as they can interfere with sonar signals.
How does CHIRP technology improve over standard sonar?
CHIRP sweeps across frequencies continuously, providing better target separation, sharper images, and less clutter than single-frequency pulses—essential for distinguishing fish from bait schools.
What's the difference between medium and high frequency bands?
Medium (80-130 kHz) covers deeper water with wider beams for general scanning. High (130-210 kHz) offers narrower beams for high-resolution details in shallower depths.
Does the pair require special cabling?
It uses standard CP450C plugs, and a Y-splitter cable is included to connect both transducers to a single sonar input easily.
Can I use this at high boat speeds?
Yes, the low-profile design and beam angles perform well up to planing speeds. Add a fairing block for cavitation-free operation above 25 knots.
How accurate is the temperature reading?
The integrated sensor provides reliable surface water temp data, great for tracking currents and fish behavior, with accuracy within 1°F after calibration.
Is this suitable for freshwater boating too?
Absolutely—while bronze thrives in salt, it performs equally well in fresh water on compatible hulls, offering versatile year-round use.
B75 Med/High 20° Tranducer - Pair
Depth transducer pair, CHIRP, 600 Watt, high frequency: 130-210KHz, mid frequency: 80-130KHz, B75 low-profile bronze thru-hull with 20° tilt and 2" diameter shaft.
Features:
- Depth/Temp
- Thru-Hull
- Beam Angle - 20º
- Bronze
- CP450C Plug on Cable - Requires Y-Splitter Cable (Included)
- Power 600W
- Frequency: M=80-130 kHz, H=130-210 kHz
- Medium: 24º to 16º beamwidth
- High: 15º to 9º beamwidth
- Hull type: Fiberglass or wood
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SKU: NVN-66092
MPN: T70068
UPC: 723193730263
Technical specifications
| Brand | Raymarine |
| Model | Raymarine B75 Med/High 20° Tranducer - Pair |
| SKU / MFR# | 66092 |
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