Humminbird

Humminbird XAP-9-20 Angled Puck Transducer

SKU: 28670 · UPC: 082324505782 · MPN: 710165-1
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02 · Overview

Humminbird XAP-9-20 Angled Puck Transducer — Product description

Upgrade your fishing setup with a reliable inside-hull transducer designed specifically for boats with angled bottoms. This angled puck model ensures your sonar pulses shoot straight downward, delivering crisp, accurate readings even on hulls with significant deadrise. No need to drill holes through your boat—simply mount it securely inside and let it work its magic through the fiberglass.

Perfect for Angled Hulls: How It Overcomes Common Sonar Challenges

Boat hulls aren't all flat; many feature a deadrise angle greater than 15 degrees for better performance in rough waters. A standard flat transducer on these hulls tilts the sonar cone awkwardly, scattering signals and muddying your fish-finding view. This angled puck transducer corrects that by matching your hull's slope, keeping the beam perpendicular to the water. Anglers report sharper bottom contours, precise fish arches, and fewer false echoes, turning frustrating blank screens into productive fishing sessions.

Effortless Inside-Hull Mounting for Any Fiberglass Boat

Installation is straightforward and boat-friendly. Clean a smooth section of your hull—avoid strakes, ribs, or fittings—then secure the puck with marine-grade epoxy or adhesive. For best results:

  • Position it forward of the propeller to dodge turbulence.
  • Ensure at least 1/8-inch thick fiberglass for optimal signal transmission.
  • Test in water before finalizing; minor adjustments can make a world of difference.

It's a game-changer for trailered boats or those you don't want altered externally, preserving resale value while boosting on-water tech.

Proven Performance Tailored for Everyday Anglers

Crafted with durable materials, this single or dual-beam puck handles the demands of freshwater and saltwater pursuits. Expect reliable depth penetration up to hundreds of feet, depending on your unit's power, with clear separation of structure and baitfish. Seasoned users praise its consistency in shallow bays or deep reservoirs, where hull angle often sabotages lesser transducers. Pair it with your existing display for an instant sonar refresh without breaking the bank.

Versatile Compatibility Across Humminbird Lineups

Engineered to integrate seamlessly with a wide range of compact Humminbird models, from entry-level Piranha units to versatile Matrix and FF series fish finders. Whether you're running a portable setup or a fixed console, this transducer slots right in, enhancing resolution without compatibility headaches.

Maximize Your Transducer's Potential: Expert Tips

To squeeze every ounce of performance:

  1. Water Testing: Always verify in real water conditions; air tests mislead.
  2. Cable Management: Route wires away from electrical noise sources like engines or bilge pumps.
  3. Seasonal Checks: Inspect for air pockets or hull flexing that could degrade signals over time.
  4. Combo Use: If dual-spectrum capable, toggle beams for varied water columns.

These tweaks help anglers consistently locate hotspots, from weed edges to drop-offs.

California Residents: This product may contain chemicals like lead, known to the State of California to cause cancer, birth defects, or reproductive harm. Learn more at P65Warnings.ca.gov.

Frequently Asked Questions

What is a deadrise angle, and why does it matter for transducers?

Deadrise is the angle of your boat's hull bottom from flat. Over 15 degrees requires an angled transducer to direct sonar signals straight down, preventing distorted readings and missed fish.

Can I install this transducer on any fiberglass hull?

Yes, on most fiberglass hulls with smooth surfaces and adequate thickness (at least 1/8 inch). Avoid wood, aluminum, or cored hulls, as they interfere with signal transmission.

What's the difference between single and dual puck transducers?

Single-beam offers a narrow, detailed view for precision; dual-beam adds a wider cone for broader coverage, ideal for scanning large areas quickly.

Will this work through thick hulls or in saltwater?

It performs well through standard fiberglass in both fresh and salt water. Thicker hulls or foam cores may weaken signals—test first for your setup.

How do I troubleshoot weak sonar signals after installation?

Check for air bubbles under the puck, hull flex, or cable damage. Reposition slightly forward or ensure full epoxy contact. Water-test away from docks.

Is this transducer suitable for high-speed boating?

Best at trolling or slow speeds under 10 mph. Higher speeds create turbulence that disrupts readings, regardless of model.

Can I use it with modern Humminbird units?

It's optimized for older compact models but verify connector type. For newer Helix or Solix, consider upgraded transducers.

Angled Puck Transducer

Inside Hull Transducers mount to the inside of most fiberglass boat hulls and transmit the sonar signal through the hull. On hulls with a deadrise less than 15 degrees, a flat bottom transducer should be used. For angles greater than 15 degrees, an angled transducer is recommended to assure the sonar signal travels downward.

Description: Single/Dual Puck Angled Transducer.
For Use With: Piranha 1, Piranha 2, Piranha 3, Piranha 4, Piranha 5, Matrix 15, Matrix 17, Matrix 25, Matrix 27, Matrix 55, Matrix 65, Matrix 67, Matrix 97, FF515, FF535, FF565.

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.



The angled ice ball sensor inside the hull is installed inside most fiberglass hulls and transmits sonar signals through the hull. On the hull with little dead skin...
SKU: NVN-28670
MPN: 710165-1
UPC: 082324505782
03 · The numbers

Technical specifications

BrandHumminbird
ModelHumminbird XAP-9-20 Angled Puck Transducer
SKU / MFR#28670

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04 · Before you buy

Frequently asked questions

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05 · Customer voices

Customer reviews