Hertz SX690NEO-1 6x9" 3-Way Coaxial Speakers

The Hertz SX690NEO-1 is a pair of 6x9-inch, 3-way SPL coaxial speakers designed for car-audio systems that need strong midrange and high-frequency output from a compact speaker location. Each speaker combines a 6x9 woofer, dome tweeter, and dome super tweeter in one assembly. This format helps simplify an upgrade where separate tweeter mounting is not desired.

With 130 watts continuous power handling and a 4-ohm nominal impedance, these speakers are suited to amplified systems as well as carefully matched high-output speaker installations. Their 94 dB sensitivity supports efficient output when paired with an appropriate amplifier. The specified 65 Hz to 24 kHz frequency response covers upper bass through extended high frequencies.

The SX690NEO-1 uses a 3-way coaxial layout to concentrate vocal, instrument, and treble reproduction in a single 6x9-inch mounting position. A built-in crossover directs the tweeter at 4 kHz and the super tweeter at 10 kHz, both at 6 dB per octave. A resettable solid-state protection circuit is included for the tweeter section.

Its woofer uses a high-stiffness pressed-paper cone with water-repellent, humidity-resistant, and anti-UV treatments. The motor structure uses neodymium magnets, helping keep the speaker assembly relatively compact for its output class. A double-layer copper voice coil on a polyamide former supports the stated power-handling capability.

These Hertz SPL Show speakers are a practical fit for listeners building a louder full-range system with dedicated subwoofers handling the lowest bass. Hertz specifies a 60 Hz high-pass filter at 12 dB per octave for SPL-oriented operation. Double Faston terminals also support daisy-chaining multiple units where the amplifier and final impedance load are correctly planned.

Key Features

• 3-Way Coaxial Layout: Combines woofer, tweeter, and super tweeter in each speaker.
• 130W Continuous Handling: Supports use with appropriately matched external amplification.
• Neodymium Motor System: Provides compact magnetic assemblies for the woofer and high-frequency drivers.
• Weather-Resistant Paper Cone: Resists water, humidity, and UV exposure.
• Integrated High-Frequency Protection: Resettable solid-state circuitry protects the tweeter section.
• Provided Protective Grille: ABS frame and metal mesh help shield the speaker face.

Design & Installation

The SX690NEO-1 combines a water-repellent pressed-paper cone with Tetolon high-frequency domes and neodymium magnets. Its woofer has a 38 mm voice coil, while the tweeter and super tweeter use 25 mm and 20 mm voice coils respectively. The provided MPG 690 grille uses a high-resistance ABS structure with a metallic finish and protective metal mesh.

Confirm available mounting clearance before installation using the published 237.5 x 225 mm outer dimensions and 93 mm overall depth. Use the speakers with a stable 4-ohm-capable amplifier and observe the amplifier's minimum impedance when daisy-chaining speakers. For Hertz's SPL-oriented setup guidance, apply a 60 Hz high-pass filter with a 12 dB-per-octave slope.