About the Hertz MLK 1650.3

Product highlights:
- component system includes 2 woofers, 2 tweeters, and 2 external crossovers
- 6-1/2" pressed pulp/cotton fiber woofer
- Boundary Free rubber surround
- aluminum alloy basket
- 1-7/16" Tetolon dome tweeter
- compact MLCX 2 TW.3 outboard crossover
- 2-position "Mid-Contour" switch for mid-bass adjustment
- 2-position "Hi-Contour" switch for high pass crossover point setting
- "Hi-Boost" for off-axis tweeter positioning
- 3-position attenuation switch for tweeter
- frequency range: 40-28,000 Hz
- handles up to 150 watts RMS (300 watts peak power)
- sensitivity: 92 dB
- woofer top-mount depth: 2-3/4"
- grilles included
- warranty: 2 years
- MFR # MLK 1650.3
- Item # 301MLK1650
What's in the box:
Hertz MLK 1650.3 owner's manual
If you need assistance accessing this owner's manual, please give us a call.- Two ML 1650.3 Woofers
- Two ML 280.3 Dome tweeters (with attached 10" length of speaker wire)
- Two MLCX 2 TW.3 Crossover networks
- 2 Tweeter flush mount cups (installed)
- 2 Tweeter flush mount clamps
- 2 Tweeter grilles (installed)
- 2 Woofer grilles
- Sixteen 1" Allen head screws (3mm)
- 16 Speed clips
- Two M3 x 12mm Machine screws (2.5mm Allen head)
- Two M3 x 8mm Machine screws (2.5mm Allen head/installed in tweeter housing)
- 3mm Allen head bit
- 2 Flat washers
- Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese/ 21 Others)
- Template on box
More details on the Hertz MLK 1650.3

Features & specs
General | ||
---|---|---|
Speaker Size | 6 1/2 | |
Driver Design | 2-way | |
Woofer Design | Cone | |
Woofer Material | Pressed Paper/Cotton Fiber | |
Woofer Surround | Rubber | |
Midrange Design | --- | |
Midrange Material | --- | |
Tweeter Design | 35mm Dome | |
Tweeter Material | Tetolon | |
Super Tweeter Design | --- | |
Super Tweeter Material | --- | |
Impedance (Ohms) | 4 | |
Weather-resistant | No | |
Grilles Included | Cast aluminum | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years | |
Specifications | ||
Sensitivity (1W at 1 meter) | 92 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 40 - 28k Hz | |
Maximum RMS Wattage | 150 | |
Peak Power Handling (Watts) | 300 | |
Top-mount Depth (Inches) | 2 3/4 | |
Bottom-mount Depth (Inches) | 2 15/16 | |
Cutout Diameter or Length (inches) | 5 9/16 | |
Mounting Height (Inches) | 0.424 | |
Frame Width | 6.502 | |
Frame Length | 6.502 |
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 as a 6-3/4". Please enter you vehicle information to confirm fit in your vehicle.
Boundary Free Surround: This technology provides more cone surface area than other speakers of the same size, enabling it to move more air. The surrounds are made of butyl rubber, ensuring thermal and mechanical linearity.
Klippel Verified: The Klippel distortion analyzer, a device that uses a laser and computer software to do large-scale analysis of drivers in motion, helps Hertz optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.
Tweeter Mounting: The ML 280.3 tweeters are designed to flush mount using the included clamps. They can also be mounted to many factory tweeter brackets using the M3 threaded insert on the back of the tweeter housing. The tweeters are permanently mounted in their housings.
Tweeter Dimensions:
Flush Mount | |
---|---|
Mounting Height | 0.618" |
Mounting Depth | 0.703" |
Frame Diameter | 2.101" |
Cutout Diameter | 1.9" |
Crossover Settings:
- Tweeter Level: 3-position switch on each crossover; set the output level of the tweeter to -2 dB, 0 dB, or +2 dB; Hertz recommends 0 dB when the tweeters are mounted off-axis (relative to the listeners) and -2 dB when the tweeters are mounted on-axis
- Bi-amp Inputs: each crossover has bi-amp inputs, separate inputs for the woofer and tweeter; set the switch to On when using the bi-amp inputs
- Mid Contour: On/Off; low-pass crossover point set to 2.5 kHz (On) or 3.5 kHz (Off); 6 dB/octave in both positions; in most installations Hertz recommends the 3.5 kHz (Off) setting
- Hi-Contour: On/Off; high-pass crossover point set to 2.5 kHz (On) or 3.5 kHz (Off); 12 dB/octave in both positions; in most installations Hertz recommends the 3.5 kHz (Off) setting
- Hi-Boost: On/Off; leave off if tweeters are mounted on-axis (relative to the listeners); turn on if tweeters are mounted off axis; improves linearity of the frequencies above 10 kHz when the tweeter is mounted off-axis
Wiring: The crossover inputs and outputs are set screw terminals; they will accept bare wire up to 8 gauge.
Crossover Dimensions:
- Width: 7.1"
- Height: 1.6"
- Depth: 4.71"
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