Hertz Uno X 165 6.5" 2-Way Coaxial Speakers, 55W RMS, 4Ω, Pair

Hertz Uno X 165 is a 6.5" (165 mm) 2-way coaxial speaker pair designed for direct factory replacement where improved clarity and efficiency are desired without changing the head unit or factory wiring.

Each speaker is rated at 55 W RMS continuous with a 4 Ω load, and features a balanced 2-way design with a tweeter and woofer integrated into a single speaker assembly for wideband response and simpler installation.

Key Performance Features

• 6.5" (165 mm) 2-way coaxial speaker design
• Water-repellent pressed-paper woofer cone for durability
• PEI dome tweeter for extended high-frequency response
• Foam surround for controlled cone motion
• Ferrite woofer magnet and neodymium tweeter magnet
• Built-in crossover network for balanced driver integration

Power Handling

• Continuous (RMS): 55 W per speaker
• Peak: 165 W per speaker
• Impedance: 4 Ω
• Sensitivity: ~92–93 dB SPL (manufacturer published range)

Installation Use Cases

• Factory 6.5" speaker replacement in doors or rear deck
• OEM head unit + aftermarket coaxial upgrade
• Basic amplifier-powered systems matching RMS ratings

Technical Specifications

• Brand: Hertz
• Series: Uno
• Model: X 165
• Type: 2-way coaxial
• Speaker Size: 165 mm (6.5")
• Power Handling (RMS): 55 W
• Power Handling (Peak): 165 W
• Impedance: 4 Ω
• Frequency Response: ~60 Hz – 21 kHz
• Woofer Voice Coil Ø: 25 mm (1")
• Tweeter Dome Ø: ~20 mm (0.8")
• Woofer Magnet: Ferrite
• Tweeter Magnet: Neodymium

What’s Included

• (2) Hertz Uno X 165 coaxial speakers (pair)

Why Buy From MCOR Automotive

• Authorized Hertz retailer
• Speaker fitment and system-matching support
• Fast fulfillment with 12V audio expertise

Physical Specs

A	164,6 mm	6.48 in.
B	144 mm	5.67 in.
C	69 mm	2.72 in.
D	63 mm	2.48 in.

Fitment, Installation & Warranty Notes

• Fitment Help: Need help confirming fitment, compatibility, amplifier matching, or installation parts? Use our Fit Guide or contact us through the chat button before ordering.
• Authorized Retailer: MCOR Automotive is an authorized Hertz retailer. Products purchased from MCOR include applicable manufacturer warranty coverage when installed and used according to manufacturer guidelines.