Chevrolet Suburban Speaker FAQ
What speakers should I replace first in my Chevrolet Suburban to get the biggest sound improvement?
Start with the front door panel speakers. The 6x9 inch full-range units handle the widest frequency range in the Chevrolet Suburban and tend to show the most noticeable degradation over time. Replacing these first gives you the biggest return on investment before touching anything else. The 6.5 inch midbass units in the rear door panels would be the logical second step, since they work alongside the front stage to fill out the low-midrange body that most people notice is missing. Dashboard speakers can wait. They matter, but probably less than you think right away.
What wattage and impedance should replacement front door speakers handle in the Chevrolet Suburban?
For the 6x9 inch front door panel position, look for speakers rated at least 50 watts RMS with a 4 ohm impedance. Factory head units in the Chevrolet Suburban typically output somewhere around 15 to 22 watts RMS per channel, so the RMS rating is what actually matters here, not the peak figure. Matching impedance at 4 ohms prevents current draw issues that can stress the amplifier. If you are running an aftermarket amplifier, ratings between 75 and 150 watts RMS at 4 ohms tend to be a reasonable target range depending on your setup.
What is the difference between the full-range and midbass speaker types found in the Chevrolet Suburban?
Full-range speakers attempt to reproduce the entire audible spectrum from roughly 80 Hz up to 20,000 Hz through a single driver. Midbass speakers are more focused, typically covering around 80 Hz to 500 Hz, which means they handle the punch and warmth in music rather than the highs. The Chevrolet Suburban uses 6.5 inch midbass units in the rear door panels specifically because that position is better suited to reinforcing low-midrange frequencies. Putting a full-range speaker there works, but you may not hear a dramatic difference in the upper treble from that location anyway. The distinction matters more when you are building a system with dedicated tweeters and a proper crossover.
Do the A-pillar tweeters in the Chevrolet Suburban require special crossover settings?
The 1 inch tweeters in the A-pillar position should ideally be high-pass filtered at around 3,500 Hz to 5,000 Hz. Running full-range signal through a 1 inch tweeter risks distortion and potentially driver failure, since small tweeters are not designed to handle frequencies below roughly 2,500 Hz at any real volume. Some aftermarket component speaker sets include passive crossovers that handle this automatically. If you are installing tweeters without a crossover network, an inline capacitor around 4.7 microfarads can provide basic high-pass filtering as a minimum protection measure. The Chevrolet Suburban A-pillar location is fairly close to the listener, so getting the crossover point right has a noticeable effect on imaging.