About the Hertz K 165
Start with Hertz
Start with Hertz
I can be a heel-dragger if we're talking DIY projects, but when it comes to upgrading to new speakers, I always regret waiting. Going from the fuzzy crackly-ness of old factory speakers to clear and present sound is always rewarding. Hertz's Uno Series car speakers give you a way to do so with solid power handling and trickle-down design elements from competition-level audio engineering.
Factory replacements
With aftermarket power up to 75 watts RMS, this Hertz's Uno Series K 165 6-1/2" component speaker system employs a treated paper cone and foam surround for low-frequency excellence and a separate PEI dome tweeter with an integrated crossover for crisp highs. Hertz includes tweeter installation solutions for a variety of mounting styles.
The Hertz philosophy
Hertz believes that a good speaker should reveal the emotional power of the music you love. That's a high bar, but with their commitment to using premium components and boundary-pushing design, they're more than up to challenge. Comprised of music lovers, Hertz is committed to optimizing your car's system for total audio enjoyment.
Grilles are not included; the factory grilles should be suitable for most applications.
Product highlights:
- component speaker system includes 2 woofers and 2 tweeters
- 6-1/2" treated paper woofer with foam surround
- PEI dome tweeter with integrated crossover
- handles up to 75 watts RMS (300 watts peak power)
- frequency range: 55-23,000 Hz
- sensitivity: 93.5 dB
- woofer mounting depth: 2-1/2"
- impedance: 4 ohms
- grilles not included
- warranty: 2 years
- Our 60-day money-back guarantee
- MFR # K 165
What's in the box:
- Two V 165 Woofers
- Two T 24 Tweeters (46" length of speaker wire attached with in-line crossover)
- 2 Tweeter flush mount trim rings
- 2 Tweeter flush mount clamps
- 2 Angled surface mount housings
- 2 Tweeter grilles (installed)
- Eight 3/4" Screws
- 8 Speed clips
- 2 Round adhesive foam pads
- Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese/ 21 Others)
- Template on box
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More details on the Hertz K 165

Features & specs
General | ||
---|---|---|
Speaker Size | 6 1/2 | |
Design | 2-way | |
Tweeter Design | 24mm Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | PEI | |
Woofer Composition | Pressed Paper (Water-Repellent | |
Woofer Surround | Foam | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years | |
Specifications | ||
Sensitivity (1W at 1 meter) | 93.5 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 55 - 23k Hz | |
Minimum RMS Wattage | --- | |
Maximum RMS Wattage | 75 | |
Peak Power Handling (Watts) | 300 | |
Top-mount Depth (Inches) | 2 1/2 | |
Bottom-mount Depth (Inches) | N/A | |
Cutout Diameter or Length (inches) | 5 9/16 | |
Mounting Height (Inches) | 0.228 |
Product Research
Features
Size Classification Note: Some manufacturers, including Hertz, call this size woofer a 6-1/2". Because it requires a larger cutout than a standard 6-1/2" speaker, Crutchfield has traditionally referred to this size speaker as a 6-3/4". Please enter your vehicle information to confirm fit.
Tweeter Mounting: Brackets are included for flush mounting and angled surface mounting (60° or 30°) the tweeters. If surface mounting, holes for the mounting screws and wire will need to be drilled.
Tweeter Mounting Dimensions:
Flush Mount | 60° Angled Surface Mount | 30° Angled Surface Mount | |
Mounting Height | 0.36" | 1.232" | 1.515" |
Depth | 0.436" | N/A | N/A |
Frame Diameter | 1.605" | N/A | N/A |
Cutout Diameter | 1.422" | N/A | N/A |
Frame Width | N/A | 1.463" | 1.463" |
Frame Depth | N/A | 1.535" | 1.255" |
Crossovers: The high pass crossovers are wired in-line and attached to the tweeters. Each crossover's diameter is approximately 3/8" and the slope is 6 dB/octave. The woofers are not crossed over.
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