What size speakers are in a 2001 Lexus GS300?

In a typical 2001 Lexus GS300, the front doors use 6.5-inch speakers and the rear doors use 4x6-inch speakers, with a front tweeter for high frequencies.

However, sizes can vary by market and by audio package. The GS300's 2001 model year offered both a standard stereo and a Premium Sound option, which could affect the exact configurations and mounting depths. If you’re planning a replacement, verify the exact sizes on your specific car by checking the speaker itself or the service documentation for your VIN, since regional differences and trim variations exist.

Common factory configuration

Below are the sizes most commonly found in 2001 GS300s, organized by location.

Front stage

The front pair is typically 6.5 inches in diameter. They usually pair with a separate tweeter mounted in the dash or A-pillar to deliver higher frequencies.

Sizes and components commonly seen:



• Front door speaker size: 6.5 inches (165 mm) in diameter; designed to handle midbass frequencies.


• Tweeter: 1-inch (25 mm) dome tweeter located in the dash or A-pillar for highs.

In practice, this front stage configuration is the most frequently encountered setup for the era, and it’s the typical target for aftermarket replacements.

Rear stage

The rear speakers are typically 4x6 inches (100 x 150 mm) in the factory layout, installed in the rear doors and designed to cover midrange and some bass frequencies.

Common rear-stage size:



• Rear door speaker size: 4x6 inches (100 x 150 mm).

Rear-stage components are generally smaller than the front stage, which is why many upgrades focus on the front 6.5-inch units first for audible impact.

Variations by market and trim

Audio configurations can differ based on regional markets, model year revisions, and whether the car has the base stereo or the Premium Sound package. Some markets or trims might use alternative sizes or mounting depths, so it’s wise to confirm with a hands-on check or by consulting model-specific documentation for your vehicle.

What to know if you’re upgrading

If you’re planning to replace speakers, verify the mounting depth and doorway clearance, and check for compatibility with your vehicle’s wiring harness and factory amp (if present). Matching the size (6.5 inches front, 4x6 inches rear) is a reliable starting point for replacements, but you may need adapter rings or harness adapters depending on the exact trim and market.

Summary

The typical 2001 Lexus GS300 configuration features 6.5-inch front door speakers and 4x6-inch rear door speakers, with a front-mounted tweeter for high frequencies. Variations exist by market and trim, so always confirm the exact sizes on your vehicle before purchasing replacements. Upgrading often prioritizes the front 6.5-inch speakers, but accurate sizing and proper mounting are essential for a proper fit and sound.

How much is a 2001 Lexus GS300 worth?

The average value for a 2001 Lexus GS 300 is approximately $4,150 to $4,475, but this can vary significantly based on condition, mileage, and location. Prices can range from a low of around $2,700 for a car in poor condition to a high of about $5,975 for one in excellent condition. 
Factors influencing the value

• Condition: The overall mechanical and cosmetic condition of the vehicle is a major factor. A car in excellent condition will be worth more than one with significant wear and tear. 
• Mileage: Higher mileage cars will have a lower value. For example, a car with over 200,000 miles will likely be at the lower end of the price range. 
• Location: The price can vary depending on your geographical location, as some markets may have higher demand for certain vehicles. 
• Options and trim: Optional features and specific trim levels can affect the final price. The 2001 GS 300 is the main model, but other factors like a premium sound system or other factory options can influence value. 

How to get a more precise valuation

• Use online appraisal tools from sites like Edmunds, Kelley Blue Book, or J.D. Power to get a more personalized estimate by entering your specific vehicle's details.
• Compare your car to similar models currently for sale on sites like Autotrader or Edmunds.

How do I know my car speaker size?

To find your car's speaker size, check the owner's manual or an online database using your car's make, model, and year. Alternatively, you can physically measure the speaker by removing the grille and measuring the diagonal diameter, mounting depth, and cutout diameter. 
Method 1: Consult the manual or an online database

• Owner's Manual: This is the easiest way to find the exact sizes. Look in the specifications section. 
• Online Resources: Websites like Crutchfield have databases where you can enter your car's details to see a list of compatible speaker sizes. 

Method 2: Measure the speakers directly
If you can't find the information in the manual, or if you want to be certain, you can measure the speakers yourself. 

1. Remove the speaker grille: to access the speaker. 
2. Measure the diameter: across the widest part of the speaker's frame. This is the most important measurement for determining size. 
3. Measure the mounting depth: to ensure the new speaker will fit without hitting anything behind it. 
4. Measure the cutout diameter: to ensure the new speaker's basket will fit through the opening. 
5. Check for markings: Sometimes, the correct size is printed on the speaker magnet or the back of the speaker itself. 

Common speaker sizes to expect

• Sedans: Often have 6.5-inch speakers in the doors and 6x9-inch in the rear deck.
• Compact Cars: Typically use 4-inch or 5.25-inch speakers.
• SUVs and Trucks: Can have space for 6.5-inch, 6x9-inch, or even 8-inch speakers. 

What does GS stand for in Lexus GS300?

In the Lexus GS 300, "GS" stands for Grand Sedan. This designation reflects the model's position as a mid-size luxury sedan in the Lexus lineup. 

• Grand Sedan: This is the official meaning used by Lexus and reflects its place as a luxury sedan in the model range. 
• Grand Sport: Some sources suggest "Grand Sport" is a backronym used by certain Lexus importers, though the primary meaning is Grand Sedan. 

What size are the front speakers in a 2001 Lexus is300?

The factory front speakers are 6-3/4" woofers that can be replaced by same-size or 6-1/2" aftermarket speakers. You'll also find a tweeter behind each sail panel.