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Cobra SPX 6700

Radar detector

Item #: 079SPX6700

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2 Reviews | 2 questions - 2 answers

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Big protection from a small radar detector

Don't be fooled by the Cobra SPX 6700's diminutive size: this detector guards you against a host of radar and laser bands — including instant-on POP radar — over an extremely long range, allowing you to travel without worry. It also monitors a safety band to keep you aware of nearby road construction, wrecks, and other situations, while strobe alert detectors tip you off to nearby emergency vehicles. You'll appreciate the clear messages on its 1-inch white OLED text display that give you important information when you need it.

Invisible to most radar detector detectors

The SPX 6700's rugged, compact chassis houses super-fast circuitry that alerts you to upcoming problems well in advance. The detector offers complete immunity to VG-2 and Spectre I radar detector detection devices, warning you when they're in proximity. You can follow the 5-level digital strength signal meter to learn how close you are to the signal's source, and what kind of threat you're facing.

Audible tone and voice alerts

Not only will you get audible tones to let you know what kind of bands are being detected, you'll also hear spoken voice alerts, so you can decide your course of action without having to take your eyes off the road.

Advanced muting functions

The SPX 6700 features the latest IntelliMute functions which can help eliminate audible alerts that you don't really need to hear. You can set the IntelliMute to activate depending on your car engine's RPM — set an activation point, and the detector will turn IntelliMute above or below a specific RPM. This way, you'll still be informed without hearing alerts when you're driving slowly. IntelliMute can also help you avoid detection by VG-2 and Spectre I at slower speeds.

More Cobra extras

Cobra's IntelliShield technology lets you choose four city modes that virtually eliminate false alarms. Turn on the dim mode to give your eyes a break at night. And you can always be sure about your car battery's voltage with the SPX 6700's low-voltage warning.

Product Highlights:

  • radar detector
  • suction-cup mount windshield bracket kit and hook-and-loop fastener
  • straight power cord
  • white OLED text display and headphone jack
  • detects 7 radar bands, 6 laser bands, 2 safety bands (including strobe alerts)
  • audio tone and voice alerts for radar, laser, and POP
  • 4 city modes
  • 360° laser protection
  • VG-2 and Spectre I immunity and alerts
  • Spectre IV+ alerts
  • display includes signal strength meter
  • dim/dark and auto-mute modes
  • IntelliMute suppresses audible alerts based on engine RPM
  • car battery low voltage warning

Cobra SPX 6700 Reviews

Average Customer Review:

2 Reviews

Great Product

Written by: Rod from Atlanta Ga. on April 17, 2014

Wow this radar saved me today. I got hit with a laser gun. I was able to slow down before the officer got to me. If you are alone on the road, it is impossible for the radar to save you from a speeding ticket. The radar just paid for itself!



cobra spx 6700

Written by: leroy from Minnesota's on November 25, 2013

This product has been very pleasing.Very sensitive to all bands especially Ka band has been able to detect Ka band on the freeway up to 30 sec.before the threat on either side of the freeway has yet to run into laser here in .MN I'm sure in the summertime I'll run into laser.Cobra spx 6700 has been very dependable so far has always scanned the radar that is in use at the time over hills around corners and straight away.So far so good with this product!!

Pros: Easy to use Dependable Range Good options

Cons: None yet

Hands-on research

What's in the box?

Download owner's manual

  • Radar detector
  • Windshield mounting bracket with two suction cups
  • 75" Straight power cord with cigarette lighter adapter
  • Self-adhesive hook-and-loop pad
  • Operating Instructions
  • Product registration card

Features and Specs

X Band Radar Yes
K Band Radar Yes
KA Photo Radar Yes
KA Wideband Radar Yes
Laser Yes
Pulse Warning Yes
VG-2 Protection Yes
Display & Alerts
Dimmer Yes
Dark Mode Yes
Visual Alerts Text
Audible Alerts Tone+Vox
Mute Yes
Earphone Jack No
Visor Clip No
Straight Cord Yes
Coiled Cord No
Case Included No
Battery Powered No
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research


Overview: The Cobra SPX 6700 is a high-performance radar/laser detector in an ultra compact design. Equipped with the latest technology and military-grade components, the SPX 6700's powerful CPU can sweep the entire police radar band spectrum in less than 240 milliseconds, providing extended range and warning time over previous models. The SPX Series gives you the best detection range in its class against all current radar/laser speed enforcement guns used today, including Instant-on and POP mode radar.

15-Band Radar/Laser Detection: The SPX 6700 detects 15 bands of radar and laser, including the Safety Alert System:

  • Radar:
    • X band
    • K band
    • Ka band
    • Ku band
  • Laser (360° detection):
    • LTI 20-20
    • LTI Laser
    • Kustom Signals Laser 340
    • Kustom Signals Laser
    • Stalker LIDAR
    • Laser Atlanta Speedlaser/Kustom Signals-ProLaser II
  • Safety Systems:
    • Safety Alert System
    • Strobe Alert System
  • Radar Detector Detectors:
    • VG-2
    • Spectre I
    • Spectre IV

Organic LED Display: The SPX 6700 is equipped with a white Organic LED display with bright graphics and clear text. You can adjust the intensity of the display using the top mounted "Dim" button. The detector has a Bright display mode for daytime driving, a Dim mode for dusk driving, and Dark mode where no visual alerts will be displayed.

Instant On/Pop Mode Alert: The Pop Mode Radar Gun is a single-pulse Doppler radar that is a feature of a K and Ka (Bee III radar gun) band Instant-On radar gun. It uses a single, short-time pulse to measure the target vehicle's speed. The SPX 6700 can sense Pop radar signals beyond the effective range of Pop radar guns, and will alert you with two beeps and two flashes of the "P" indicator. During the alert, the unit will continue to detect other signals.

Safety/Strobe Alert: The Cobra SPX 6700 will give you advanced alert of the presence and/or approach of emergency vehicles, trains, and road hazards from systems equipped with Safety Alert Traffic Warning System transmitters. The unit also has a Strobe Alert detector that can pick up the special strobes mounted on the light bars of many emergency vehicles to change traffic signals as the vehicle approaches.

Visual Alerts: The text display includes the type of signals detected and a numeric as well as vertical bar indication of the signal strength from one bar (weakest) to five bars (strongest).

Voice or Tone Alerts: The unit will sound alerts and confirm user settings with an audible alert. You can choose either Voice or Tone alerts. In Voice Alert mode, you will first hear several tones, then a voice announcing the type of signal detected, followed by more tones.  In Tone Alert mode, only the tones will be heard. A distinctly different tone is used for each type of signal detected, and with radar bands, the tones will repeat faster as you approach the signal source.

LaserEye: The SPX 6700's LaserEye provides you with 360° degree detection of laser signals. When mounting the unit, you must make sure the LaserEye has a clear view to the front and rear of the vehicle.

IntelliShield: The unit has Quad-level IntelliShield false signal rejection to reduce uncertainty and frustration from multiple false alerts. When in Highway mode, the unit provides full immediate response to all signals detected. This mode should be used when driving on the interstate and major highways. When driving in more urban environments, you can select one of the City Filtering Modes (City X, City X+K, City Plus X+K+Ka, and City Max) to minimize false alerts from automatic door openers operating in the X and K-band frequencies.

VG-2/Spectre I/IV+ Protection: The SPX 6700 will alert you when VG-2, Spectre I and IV+ radar detector detection (RDD) is in use near your vehicle. The unit is undetectable by VG-2 and Spectre I devices, but can be spotted by Spectre IV+ RDDs. During an alert, the unit continues to detect other signals. You can choose whether or not you want the unit to show VG-2 and Spectre I and IV+ alerts and whether or not to sound audible alerts.

Auto/Manual Muting: When Auto Mute is On, the unit automatically reduces the audio volume of all alerts after they have sounded for four seconds. The signals will remain muted for as long as the signal is detected. When manually muting, you must press the Mute button while a signal is being received. This will reduce the volume of the alert in progress. The volume will return to normal for the next signal.

IntelliMute: IntelliMute allows you to avoid alerts you don't need to hear because you are either stopped or moving slowly. By sensing the RPMs of the engine, IntelliMute knows that you are driving at a low speed and automatically mutes all alerts (except for strobe signals from emergency vehicles). You must first set an activation point for your engine's RPMs, and when the revs go below that point, IntelliMute begins muting. Once set, the activation point is stored in memory.

IntelliMute Pro: IntelliMute Pro prevents detection by radar detector detectors (RDDs), such as VG-2, Spectre I and Spectre IV+, when traveling at slower speeds. When IntelliMute Pro is on, and engine RPMs are below the IntelliMute Pro's activation point, the detector's radar detection circuits are turned off to prevent detection by RDDs. In addition, no alerts will be given at RPMs below the activation point.

Mounting: You will get optimum performance from the detector if you mount it at a point approximately in the center of the vehicle, as low as possible on the front windshield without obstructing the view of the road to the front or rear. The detector can be mounted in two ways:

  • Dashboard Mount: Using the supplied hook-and-loop pad, you can attach the detector to the dashboard.
  • Windshield Mount: The supplied windshield mount adheres the detector to the windshield with two suction cups. The angle can be adjusted for best visibility.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Customer Q&A

Crutchfield asked  
Why did you buy this?

great product [ Mark  Feb 01, 2016 ]

2 questions already asked

I forwarded your question to an Advisor and they responded with the following: Yes it's definitely removable from the windshield bracket. It's a product you don't want to keep out but since it's a simple "tab" that slides into the back there's a little piece you pull up on to remove it. That could be what you read about because it holds tight so it won't fall off while driving. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Aug 05, 2015 ]  Staff
It doesn't look like we have heard back from any other customers. I would recommend reaching out to an Advisor for more information on this unit. [ Jeff  Dec 23, 2013 ]  Staff

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