JBL Speakers

JBL 603C 3 way Component Speaker

[6/11/2001] Reviewed by: Smily - smilygo@yahoo.com

Applicable to: '90 - '97 1.8 liter

This is a 3 way component speakers with a separate woofer and a tweeter/mid.

Installation was a headache as the tweeter/mid mounting depth is too deep. It interferes with the inside door. If anyone wants to install this to the door, you need to purchase 2" locknut for electrical box. The locknut is thin and fit right onto the thread of the tweeter. Woofer installation is also a bit difficult as it requires making a couple of holes. The sound is worth the effort, though.

If you want to obtain a good bass and extremely detailed high, this product is for yours. Bass shakes my doors even with the OEM head unit. High is so clean and crisp, I had to tone it down a bit on my head unit. For $89, this is a steal!

Over 30 minutes to remove completely

JBL GT502 5" speakers

Reviewed by: Scott - SIPdoors22@aol.com

The JBL520 speakers look and sound great in my 1990 Mazda Miata. It is deffintely a big improvement from the factory speakers.

The speakers fit perfect into my miata. The only drilling I had to do was in the metal bracket so the speakers would stay in place. The whole installation took under 30 minutes.

These speakers are great and I'm glad I bought them, I also bought MTX speakers for my headrest. It is also a big improvement when the top is down.

Under 30 minutes to remove completely

JBL GT502 5" speakers

Reviewed by: Eli Troychansky - taa@saturn.superlink.net

Two-way car audio speakers, 2-90W recommended amp range according to the box (Crutchfield says 2-45).

Graphite reinforced something or other, superexpialidocious rubber surround, blah. Who cares. Bought from Best Buy for $89 along with the Pioneer headunit.


1. Pry off the plastic panel covering the factory tissues using fingers and/or a flat screwdriver.
2. Take out the factory tissues.
3. Apply the 5.25" adapter (Crutchfield's, naturally)
4. Install the speakers.
5. Replace the cover.
6. Don't forget to reconnect the battery, or your car won't start in the morning when you
are already late for work. :)

The sound quality is excellent. Can turn up the volume without any noticeable distortion, even when playing AC/DC. :) Don't know how it'll sound without an amp.. I bet it'll still be pretty good. If there is one thing the people at JBL know it's how to make a great speaker..

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