Nissan 280ZX Speaker Size

Dashboard Speaker

Rear Door Panel Speaker

Nissan 280ZX Speaker FAQ

What speakers should I upgrade first in my Nissan 280ZX for the biggest sound improvement?

Replace the 5.25-inch rear door panel speakers first. These handle most of your music's frequency range and typically show the most dramatic improvement when upgraded. The dashboard 4-inch speakers can wait - they're mainly for fill and higher frequencies. Quality 5.25-inch coaxials in the 50-80 watt range will transform your 280ZX's sound more than any dashboard upgrade could.

Can I install component speakers in the Nissan 280ZX rear doors instead of coaxials?

Yes, the rear door panels accommodate both coaxial and component systems. Components separate the tweeter from the woofer - you'd mount the 5.25-inch woofer in the existing door location and find a spot for the tweeter higher up. This setup typically delivers better imaging and clarity than coaxials. Just verify you have somewhere to mount those tweeters before ordering components.

What's the impedance rating I should look for in 280ZX replacement speakers?

Stick with 4-ohm speakers for both the 5.25-inch doors and 4-inch dashboard locations. Most aftermarket car speakers are 4-ohm anyway, but double-check the specs. The factory Nissan 280ZX system was designed around this impedance. Going with 8-ohm speakers might reduce your volume levels, while 2-ohm could stress your head unit if it's not rated for that load.

Why are the dashboard speakers in my Nissan 280ZX so much smaller than the door speakers?

The 4-inch dashboard speakers handle upper midrange and treble frequencies - think vocals and cymbals. They're not meant to reproduce deep bass like the 5.25-inch door speakers. This size difference is actually intentional design. The doors have more space and better acoustics for larger drivers that can move more air. Dashboard real estate is limited, so smaller full-range speakers fill in the sound stage from up front.

What frequency response should I target for 280ZX speaker replacements?

Look for 5.25-inch door speakers with response down to around 60-70 Hz on the low end and up to 20 kHz on top. The 4-inch dashboard speakers should focus on 80 Hz to 20 kHz since they won't reproduce much bass anyway. Don't get too caught up in perfect numbers though - the 280ZX's interior acoustics and your head unit will influence the final sound more than paper specs suggest.