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Hertz K 165 Uno Series 6-1/2" component speaker system

Item # 301K165

I can be a heel-dragger if we're talking DIY projects, but when it comes to upgrading to new...

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I can be a heel-dragger if we're talking DIY projects, but when it comes to upgrading to new...

Item # 301K165

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  • 60-day price-drop protection
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About the Hertz K 165

Alexander H.

Product highlights:

  • Featured in our article: Best component car speakers for 2025
  • 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
  • MFR # K 165
  • Item # 301K165

What's in the box:

Hertz K 165 owner's manual

If you need assistance accessing this owner's manual, please give us a call.
  • 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

Featured video:

More details on the Hertz K 165

Pat M.

Features & specs

General
Speaker Size 6 1/2
Driver Design 2-way
Woofer Design Cone
Woofer Material Pressed Paper (Water-Repellent)
Woofer Surround Foam
Midrange Design ---
Midrange Material ---
Tweeter Design 24mm Dome
Tweeter Material PEI
Super Tweeter Design ---
Super Tweeter Material ---
Impedance (Ohms) 4
Weather-resistant No
Grilles Included No
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
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
Frame Width 6.481
Frame Length 6.481

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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Customer Q&A

13 questions already asked

Q
How do these not fit, but the Qclass Kicker 6.5" components do? And they are the ONLY 6.5"components to fit my 2017 ford expedition? These are smaller by specs I don't understand. Kicker Q-Class 41QSS654
frank  Sep 14, 2023
1 answer
A
This is a matter of available brackets for your vehicle. The Kicker 41QSS654 include adapter brackets specifically for installing the speakers into 6"x8" openings (your factory speakers are 6"x8"). The Hertz K 165 do not include such a bracket, and we do not have a 6"x8"-to-6.5" adapter for your vehicle. We only have a 6"x8"-to-5.25" adapter. If you don't mind making your own bracket or finding one that we don't carry, then you will be able to install the Hertz K 165. However, for the sake of saving our customers confusion and installation troubles, we simply list them as not fitting.
zachary  Sep 14, 2023 (Staff)
Q
What airspace do the woofers need? as I'm putting two in a box or one in separate boxes
dominic  May 27, 2022
1 answer
A
The woofers in this component set do not need any specific air space. Typically woofers do not move the same amount of air that a subwoofer moves.
allison  May 27, 2022 (Staff)
Q
Follow up to my previous question. I see from the pictures, that both the woofer and Tweeter are rated 4 Ohms. How does the combination of the two present a 4-ohm load to a 2 channel amp?
ian  Dec 19, 2021
1 answer
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
kenneth  Dec 28, 2021 (Staff)
Q
I wish to bi amp the K165. What are the wattage and impedance specs on the Tweeter alone?
ian  Dec 19, 2021
1 answer
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
kenneth  Dec 28, 2021 (Staff)
Q
K 165 two-way system 300-watt 75 continuance what sound digital amp would I need to power to power this?
carlos  Aug 05, 2021
3 answers
A
I just remplace the original speakers but I don't used amp. this speakers sound really good for the price
rodolfo  Aug 05, 2021
A
about 300w rms amp would be just fine
afrim  Aug 05, 2021
A
If you're gonna go sound digital go with the evo x 400, 100 watts a channel.
jesse  Aug 05, 2021
Q
What amp do I need to power four of them?
carlos  Aug 05, 2021
1 answer
A
I'm running off stereo power and they are decent, a nice little amp would probably be better though.
brent  Aug 05, 2021
Q
Is thus 75 watt RMS x4/ each component or is it 75 watt RMS x2/ woofers & tweeters treated as one?
mack  Apr 05, 2021
1 answer
A
Each tweeter/woofer set acts as one speaker so it would be x2
benjamin  Apr 17, 2021
Q
Is a crossover needed for the mid range k165 component speaker? I know the tweeter has a inline crossover already.
brian  Mar 09, 2021
1 answer
A
I have the component system and it has a inline cross over. It does a pretty good job separating the mids, highs, and lows. It's a good mid range speaker system.
eric  Mar 09, 2021
Q
How in the world are these tweeters supposed to fit into the flush mount adapter?
jordan  Oct 21, 2020
2 answers
A
I cannot remember how I got them on its been awhile since but they do go on and sound great. If i remember correctly they fit snugly on the inside of the adapter. I put them on completely wrong the first time i did it and had to take them apart. Sorry i cant be of more specific help.
jeff  Oct 22, 2020
A
THEY HAVE HOLES IN THE BACK FOR SCREWS.. I DRILLED HOLES IN THE DOOR AND MADE MINE FLUSH IN THE HOLES
thaddus  Oct 21, 2020
Q
What is the woofer's excursion?
alexander  Apr 10, 2020
1 answer
A
I only drive these speakers with the head unit (22 Watts) and have the crossover from the powered compact sub set at 120hz, so I doubt I've ever come close to the excursion limit. Note that these are very efficient speakers, which is why I removed the Focal speakers I installed previously and installed Hertz. The produce good sound quality, and can get very loud, without an amp. If you like chest-collapsing bass you might want to try out a powered compact sub (I have a Kenwood under the seat in my WRX). Some people have actually installed two .
steven  Apr 10, 2020
Q
How much excursion do these woofers exhibit?
alexander  Apr 09, 2020
1 answer
A
Hi Alexander, we do not have information of excursion distance on the speakers. Please chat with us online or by phone at 1-800-324-9695 if you would like to discuss fitment of these speakers into your vehicle.
jessica  Apr 26, 2020 (Staff)
Q
Ford Fusion 2015 - If the Hertz K 170 and the MTX Terminator6S both fit all 4 doors, shouldn't the K 165 also fit all 4 doors? Is the information on the K 165 inaccurate?
bruce  Feb 27, 2020
2 answers
A
Per the manufacturer the woofer is rated at 220 watts peak, and the tweeter is 55 watts continuous PER EACH SPEAKER. I use this component system with a stock head unit and the bass response is good and the highs are crisp. Through my experience aftermarket head units have higher fidelity which sometimes means less bass and may require a sub for those that want window pounding bass. I've had both setups stock & aftermarket. This component system is very balanced and not easily overdriven at semi loud listening levels. Hope this helps
eric  Apr 17, 2021
A
You may need an adapter for your specific vehicle. I know I did for my Toyota Avalon. Look online for a 6.5 speaker adapter for you car and see if there is one needed.
michael  Feb 27, 2020
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