Hertz SX 165 NEO 6.5-inch SPL coaxial speaker front view showing pressed paper cone and PEI dome tweeter.
Hertz SX 165 NEO angled view highlighting front coaxial tweeter and rear connection terminals.
Close-up of the 1.4” PEI dome tweeter on the Hertz SX 165 NEO.
Hertz SX 165 NEO close-up of internal build with voice coil, cone material, and tweeter assembly.

Hertz SX 165 NEO 6.5″ SPL Coaxial Speakers

Hertz SX 165 NEO 6.5-inch SPL coaxial speaker front view showing pressed paper cone and PEI dome tweeter.

Hertz SX 165 NEO 6.5″ SPL Coaxial Speakers

$449.00 $499.00
Product description

200W Peak, Neodymium Motor

Extreme SPL Performance in a Compact Design

The Hertz SX 165 NEO is built for enthusiasts who demand maximum sound pressure, durability, and lightweight design. Featuring special N38 H neodymium magnets, these 6.5-inch SPL coaxial speakers deliver incredible volume and clarity while remaining compact enough for motorcycles, powersports, and outdoor applications.


Built Tough for Any Environment

The pressed-paper cone is reinforced with water-repellent, UV-resistant, and humidity-protective treatments, ensuring consistent performance in harsh outdoor conditions. A protective rubber gasket shields the speaker during extreme SPL use, making it ideal for high-performance audio builds that face the elements.


Power, Clarity, and Protection

With a double-layer copper voice coil wound on a polyamide former, the SX 165 NEO can handle up to 200W peak with exceptional low-frequency control. The 1.4″ PEI dome tweeter delivers clean, detailed highs, while a resettable solid-state protection circuit safeguards the tweeter during high-output sessions.


Quick Install & Versatile Mounting

The double Fast-On terminals make wiring fast and allow for daisy-chaining multiple speakers. Despite its high output, the lightweight neodymium motor ensures it fits easily into tight spaces without sacrificing performance.


Key Features

  • 6.5″ SPL Coaxial Speakers for extreme sound pressure levels

  • 200W peak / 100W RMS power handling

  • 96.5 dB sensitivity for maximum loudness with minimal power

  • Water, humidity, and UV-protected pressed-paper cone

  • 1.4″ PEI dome tweeter with resettable protection circuit

  • Lightweight N38 H neodymium magnet motor

  • Double Fast-On terminals for quick install and daisy-chain setups

  • Protective rubber gasket for safe outdoor use


Comparison Chart

Feature Hertz SX 165 NEO (This Item) Hertz SX 690 NEO Hertz SX 130 NEO
Size 6.5″ 6×9″ 5.25″
Speaker Type SPL Coaxial SPL Coaxial SPL Coaxial
RMS / Peak Power 100W / 200W 130W / 260W 80W / 160W
Sensitivity 96.5 dB 97 dB 95.5 dB
Impedance
Cone Material Water-repellent pressed paper Water-repellent pressed paper Water-repellent pressed paper
Surround Material Rubber gasket Rubber gasket Rubber gasket
Tweeter Size 1.4″ PEI Dome 1.4″ PEI Dome 1.4″ PEI Dome
Magnet Type Neodymium N38 H Neodymium N38 H Neodymium N38 H
Best Use Case Motorcycle, powersports, outdoor SPL Larger cutouts with maximum SPL Compact SPL installs

Professional Opinion

For those who want loud, clear sound that dominates in open-air environments, the Hertz SX 165 NEO is a go-to choice. Its lightweight neodymium design keeps weight down without sacrificing SPL power, making it perfect for motorcycles, ATVs, and competition-level outdoor audio setups.


F.A.Q.

Q: Are these sold as a pair?
A: Yes, they’re sold as a matched pair.

Q: Can I use them with my stock stereo?
A: They’ll work, but an amplifier will unlock their full SPL performance.

Q: Are they weather-resistant?
A: Yes—treated cones and rubber gasket make them safe for outdoor and marine use.

Q: Do they fit a standard 6.5″ opening?
A: Yes, they are designed for OEM and aftermarket 6.5″ cutouts.


Technical Details

  • Brand: Hertz

  • Model: SX 165 NEO

  • Size: 6.5″ SPL Coaxial

  • RMS Power: 100W

  • Peak Power: 200W

  • Sensitivity: 96.5 dB

  • Frequency Response: 100Hz – 20kHz

  • Impedance: 4Ω

  • Cone Material: Water-repellent pressed paper

  • Tweeter: 1.4″ PEI dome

  • Mounting Depth: 128mm (5.04″)

  • Magnet: N38 H Neodymium

  • Weight (each): 0.94 kg (2.08 lbs)

  • UPC: [To be confirmed]

  • Sold As: Pair


Take your sound to the next level with the Hertz SX 165 NEO 6.5″ SPL Coaxial Speakers – 200W Peak, Neodymium Motor, built for extreme output in any environment.

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