Why listen to your old factory speakers when an affordable upgrade is within reach? Blaupunkt merges reliability with value in their GT Silver Cone Series speaker line.
These GT Silver Cone Series GTX663SC 6-3/4" speakers feature polypropylene woofer cones that deliver accurate, full-bodied sound. Mylar  tweeters and midrange cones reproduce the vocal and instrumental details smoothly and cleanly. Give your car's stereo system a new lease on life – these Blaupunkt speakers bring back all the sounds that your old factory speakers miss. Grilles are included.

Product Highlights:

  • 3-way 6-3/4" speakers (pair)
  • polypropylene woofer with treated foam surround
  • 1" Mylar tweeter and Mylar midrange
  • power range: 2-50 watts RMS (220 watts peak power)
  • frequency response: 40-22,000 Hz
  • sensitivity: 93 dB
  • top-mount depth: 2-1/8"
  • warranty: none (Crutchfield's 60-day satisfaction guarantee applies)
  • Our 60-day money-back guarantee

Why replace your factory speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Hands-on research

What's in the box?

Download owner's manual

  • Two 3-way speakers
  • 2 Grilles
  • Two 12' Lengths of speaker wire (each has female quick-slides on one end and tinned bare wire on the other)
  • Eight 1-1/8" Self-tapping screws
  • 8 Speed clips
  • Manual
  • Template

Features and Specs

General
Design 3-way
Tweeter Design 1" Semi-Dome
Tweeter Composition Mylar
Woofer Composition Injected Polypropylene
Woofer Surround Treated Foam
Parts Warranty 60 Days
Labor Warranty 60 Days
Specifications
Sensitivity 93 dB at 2.83 volts
Frequency Response 40 - 22k Hz
RMS Power Range (Watts) 2-50
Peak Power Handling (Watts) 220
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 1/4
Bottom-mount Depth (Inches) 2 7/16
Cutout Diameter or Length (inches) 5 5/8

Product Research

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 open the box, verify contents, 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.

Blaupunkt GTX663SC Reviews

Average Customer Review:

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great sounds and mid s

Written By Anonymous, gville fl mL on Saturday, December 29, 2012

Crutchfield Customer Review (What's this?)

Excellent speaker. Blows p65s away and p65 is a decent low price speaker. Midrange delivery is spectacular.

Pros: Value, quality, sound is amazing

Cons: Did not fit speaker plate that was shipped with it. Lots of modification needed to mounting adapter