Item# 670GTI



6-1/2” (165mm) 2-way reference-class car component speaker system

$999.95999.95 per system
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Does It Fit My Car?

A decade ago, JBL engineers introduced the 660GTi Component System. The premium system celebrated the company’s 60th anniversary by setting new standards for power handling, distortion reduction and sound quality in cars. Now the 670GTi brings uncompromising JBL performance to a new generation of car audio enthusiasts. Featuring the identical woofers, tweeters and crossover circuits as its predecessor, this reference-class component system delivers huge power-handling capability, flat response and unparalleled distortion elimination. It even simplifies installation by splitting the crossover into separate, one-channel boxes. The product of meticulous design, manufacturing and testing, the 670GTi represents everything JBL engineering stands for.

What's in the box?

  • 1 pair of midrange speakers
  • 1 pair of tweeters
  • 1 pair of passive crossovers
  • 1 pair of carbon fiber grilles
  • 1 foam gasket set for midranges
  • 1 pair of I-mount™ kits for tweeters
  • 1 pair of spider mounts for tweeters
  • 1 pair of quad mounts for tweeters
  • Owner’s manual

The 670GTi’s spider and surround are specifically designed to ensure linear motion in both forward and rearward directions. This minimizes distortion caused by the speaker’s suspension.

The ultra-rigid Kevlar dustcap and cone body minimize unwanted cone flexing, ensuring smooth frequency response.

The 670GTi delivers crystal-clear vocals and midrange—even during heavy bass signals—thanks to its polepiece cap. The copper cap provides linear inductance over the full range of forward voice-coil travel, which reduces intermodulation distortion.

When air gets trapped in a voice coil, it can cause distortion—and the 670GTi isn’t about to let that happen. Vents allow air to move over the voice coil, which eliminates distortion and enables superior power handling.

An extra long, aluminum edge-wound voice coil provides high excursion for improved low-frequency capability. The two-inch diameter, over-hung voice coil reduces distortion at low frequencies and high input power.

The one-inch, edge-driven textile dome tweeter employs an oversized voice coil, which increases power handling and lowers distortion at high output levels, and produces a flatter overall frequency response.

The 670GTi’s tweeter plays all the way out to 30kHz, so you hear every bit of detail and nuance that your music has to offer.

Technology and construction you might find in a premium home loudspeaker are right at home in the 670GTi’s crossover network. Aluminum-encased, wire-wound resistors and heavy-trace printed circuit boards greatly increase heat dissipation and power handling, maximizing the amount of amplifier power that reaches the woofer and tweeter.

Power Handling
150W RMS, 600W peak
Crossover Frequency
Frequency Response
50Hz – 30kHz
92 dB
4 ohms
Voice Coil Diameter
2" (50mm)
Midrange Speaker Diameter
6-5/16" (160mm)
Midrange Speaker Mounting Diameter
5-1/16" (128mm)
Midrange Speaker Depth
3-1/16" (77.8mm)
Midrange Speaker Mounting Depth
2-23/32" (69.1mm)
Tweeter Diameter
2-11/16" (69mm)
Tweeter Mounting Diameter
2-3/16" (55mm)
Tweeter Depth
1-5/16" (41mm)

The latest owner's manuals, quick start guides, and documents.

3 Year

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

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Call us: 1.800.336.4525

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  • Technical help
  • Parts and accessories

Are the crossovers the same size as the 660 gti crossovers? And do they come in the same huge packaging?

Asked by: DaBoss8869
Yes, both the 660GTI and the 670GTI use the same crossover design.
Answered by: Amir at Customer Service
Date published: 2016-07-18

how big is box with this product I mean size of this box

Asked by: Artist
It is impossible to give these dimensions as we don't know where you will be putting it. So the shape or size must be decided by you. Here's a way to calculate the sides of an enclosure. One cubic foot is 1728 cubic inches. Let's say you want to build a 6.5 cubic foot box. Convert 6.5 cubic feet to cubic inches by multiplying 6.5 times 1728, which equals 11232 cubic inches. The area of a rectangle can be calculated by the formula Length x Width x Height = Area. So, pick two sides that you would like to come close to. Lets say a height of 22 inches and a depth of 20 inches. I'll pick 24 inches as the width to start. 20 x 22 x 24 = 10560 - too small 20 x 22 x 26 = 11440 - too large 20 x 22 x 25.5 = 11220 - CLOSE ENOUGH So, your internal dimensions would be 22" High, 20" Deep and 25.5" long.
Answered by: Joe G at Customer Service
Date published: 2016-07-06
  • 2016-09-24T10:14CST
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  • loc_en_US, sid_670gti, PRD, sort_recentAnswersFirst
  • clientName_JBL

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