Lexus IS350 Speaker Size
Speaker size, type, and location chart for Lexus IS350 models from 2006 to 2015 production years.
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Front Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2006 - 2015 | Midbass / Full-Range | 6.5 |
Rear Deck Lid Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2006 - 2015 | Midbass / Full-Range | 6.5 |
Lexus IS350 Speaker FAQ
What speakers should I replace first in my Lexus IS350?
Replace the front door panel speakers first. The 6.5-inch front speakers handle most of your music's critical frequencies and vocals. You'll notice the biggest improvement here since you sit closest to them. The rear deck speakers can wait - they mainly provide fill and ambient sound. Front door replacement typically gives you 70% of the total sound improvement you'll experience.
Can I install component speakers in my Lexus IS350 rear deck?
Yes, both locations support component systems. The rear deck lid accepts 6.5-inch components, coaxials, or full-range drivers. Components will give you better imaging but... most people don't sit in the back seat. The front doors are where component speakers really shine. You might want to run coaxials in the rear and save your budget for quality components up front. The IS350's rear deck has decent space for tweeter mounting if you do go component.
What's the difference between coaxial and component speakers for the IS350?
Coaxials combine the tweeter and woofer in one unit - simpler installation, one speaker per location. Components separate them completely. You get better soundstage control with components because you can aim tweeters independently. The Lexus IS350 supports both types in front and rear positions. Components typically handle 80-150 watts RMS and reach down to around 55Hz. Coaxials are more forgiving with placement but won't match component imaging precision.
How do I know if my IS350 speaker upgrade worked?
Play familiar music at moderate volume first. Listen for clearer vocals and better instrument separation. The soundstage should feel wider and more defined in your Lexus IS350. Bass response might actually seem tighter rather than louder - that's good. If everything sounds harsh or overly bright, your tweeters need adjustment or different positioning. Check that speaker impedance matches your amplifier - most aftermarket 6.5-inch speakers run 4 ohms which works fine with factory head units.