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West Coast Customs WCC680 (Same as Diamond Audio D673A)

6" x 8" / 5" x7" 2-Way Convertible Component/Coaxial Car Speakers System by Diamond Audio (D673A)


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West Coast Customs WCC680 by MB Quart

OUR PRICE: $59.99

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West Coast Customs WCC680 (Same as Diamond Audio D673A)

6" x 8" / 5" x7" 2-Way Convertible Component/Coaxial Car Speakers System by Diamond Audio (D673A)


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West Coast Customs Signature Speakers by Diamond Audio

These West Coast Custom speakers are top quality for your dollar as they convert from coaxial to component. They are the exact same as the Diamond Audio D673A, only they are priced significantly less due to a huge closeout we purchased. At 120 watts RMS per set, they pair well with most high output aftermarket amplifiers. These door speakers are designed with a 1" aluminum tweeter, allowing for a bright presence of high frequencies. The 12db/octave crossover network will fade the tweeters subtly into the mid-range speaker.

Convertible Component System

This speaker system has the ability to be mounted in either a component or a coaxial application. Simply release the tweeter and pull the wires out of the center ventilation hole. You may mount the tweeter in a separate location from the mid-woofer to bring out the highs, increase imagery and transparency of your music and provide a balanced sound.

General Features:

  • 6" x 8" WCC Series Convertible Component Car Speaker System
  • Equivalent to Diamond Audio D673A speakers
  • Power Handling:
    • Peak: 240 watts per set / 120 watts each side
    • RMS: 120 watts per set / 60 watts each side
  • Component or Coaxial mounting configuration
  • Hard anodized Aluminum cone material
  • Rubber speaker surround for improved damping
  • 1" Aluminum Dome tweeter
  • 12db/octave passive external crossover network
  • 4 ohms impedance
  • High temperature voice coil
  • Rear acoustic fill provides matched attenuated output from front crossovers to the rear speakers
  • Flat progressive spider maintains linear cone movement
  • Rubber boot magnet protector
  • Top-mount depth: 2-1/8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Product History:

West Coast Customs WCC680 thumbnail
(newest, current model)
West Coast Customs DIA-WCC680 thumbnail
(previous model, replaced by West Coast Customs WCC680 by MB Quart)

Speaker Specifications

This is the manufacturer product line of speakers.
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6" x 8" (also mounts in most 5" x 7" locations)
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
120 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
60 watts
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
86.5 dB
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
4-15/16" x 6-15/16" 
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Specials with this Item

Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Tallahassee, FL

All I want to do is sit in my car and listen to music now.

January 7, 2013

Got 4 on cyber monday. Def worth way more. Pure Pure Sound in my 2000 Lincoln Navigator.

5 of 6 found this helpful

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Kona, HI


December 2, 2012

These sound great. I was skeptical because of the price but they are woth 3 times as much. I own some Diamond D1's and these are very similar minus the logos and rubber magnet boot. The basket is also different but does not affect the sound. The mids also have some of the best bass I've heard from a 6x8.

I have owned Pioneer and Boston SE85's and these are better. I am running them on a P400-4 if you are not going to amp these I don't think you will be happy with them. They like power.

4 of 5 found this helpful

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Great Speakers for the price!

January 5, 2013

Mainly got these because my old door speakers weren't that loud and they didn't sound that good. I wanted the component system because I got the Alpine type R 15" and I wanted to hear the mids and highs over the bass. For that purpose I got a Jensen 760.4 amp to power these. They sound very good and the mids and highs are very clear and bright, It sounds like someone is singing right at me! Of course the speakers themselves don't have too amazing of bass, but its not a problem for me since I have a sub. With this amp the speakers are able to go very loud without problems. I'd recommend these speakers to someone who doesnt want to spend a lot of money on door speakers, also I recommend an amp because they can go pretty loud! Only con is the crossovers are big, so I had to just put them under the seats instead of the door's which wasn't a problem at all.

3 of 4 found this helpful

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Conroe, TX

bough and them almost did not install them.

December 2, 2012

I had a set of Infinity Reference 6000cs in the front of my '11 Tundra, they have been there for nearly 2 years, and they were in my 07 Tacoma for 3 years before that, and were in my accord for several years before that. They still sounded good, but they have more than a few years on them. I bought these on impulse when I saw the price (and because my truck cam with 6x9 in the front doors). When I got them i was kind of uncertain about putting them in, but went ahead and plunged in. I re-cut my baffles, screwed them in, ran wiring, found a place to hide the crossovers (which are fairly large) and buttoned everything up.
I am impressed and VERY happy I took a chance on stuff I knew nothing about.
They sound much better than my 7 year old (or older) Infinity speakers. I have been able to turn them up louder, push a bit more bass through them and they still sound cleaner and clearer. I am pushing them with a Pioneer 60x2 amp and it seems to be a perfect match.

The only reason ease of use did not get a 5 star is the crossovers are VERY large compared to what I am used to, and I was lucky to find a place under the center of my front console to fit them in.

3 of 4 found this helpful

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Accessory Tools and Products

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

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Belva Five Piece Installer's Panel Removal Tool Kit

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $13.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

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Universal Wire Puller & Grabber

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Encore Universal Four Door Power Door Lock Kit

Add Power Door Locking and Unlocking while you have the Door Panels removed

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NVX SDSK2 Speaker Kit

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Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

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NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

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12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

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12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

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12-10 AWG Quick Disconnect Connectors

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: West Coast Customs WCC680 (Same as Diamond Audio D673A)