【KICKER KSS6704 Rear Speaker Replacement｜Separate 2-Way for Enjoying Music to the Back Seats】

With the factory rear speakers,

• When listening from the back seats, the sound feels muffled
• The music lacks thickness and impact
• The connection between front and rear audio feels off
• I want to deliver a more enjoyable, easier-to-listen-to sound to family members and passengers sitting in the back

If this is how you feel, you should consider the KICKER KSS6704.

The KSS6704 is a separate 2-way speaker that separates the tweeter and the mid-range. By replacing the factory speakers with the KSS6704, the sound’s definition and the thickness of the mid-bass/low-mid range change, and it becomes easier to pinpoint the position of vocals and instruments.

This isn’t just a replacement to increase volume. A key benefit of speaker replacement is that even when you play the music you normally listen to at your usual volume, you’ll more easily notice changes in sound cohesion and listenability.

What matters most when replacing rear speakers is the front-to-rear balance

Even if you turn the rear speakers up, it doesn’t necessarily mean the entire cabin will sound better. If only the rear sounds stand out, the front seats may actually feel harder to listen to.

When using the KSS6704 in the rear as well, it’s important to adjust the volume and the balance between front and rear while considering the combination with the vehicle’s factory audio system and the front speakers.

Personally, I don’t think of the rear speakers as a standalone item—I look at whether you can enjoy music naturally across the entire cabin, and then build the combination accordingly. While improving how easy it is to listen from the back seats, I’d like to aim for a state where the sound doesn’t scatter even when listening from the front seats.

Depending on the installation method, the same speaker can sound different

Speakers aren’t something you’re done with just by installing the product you chose. Depending on the vehicle-specific installation conditions, the interior structure, and the specifications of the factory speakers, the required work and the final finish will vary.

After confirming the actual vehicle, we check things like:

• Whether it can fit naturally into the factory location
• How the tweeter should be positioned
• Whether the mounting parts can be fixed securely
• How to balance the front-to-rear volume
• Whether there are any compatibility issues with the factory audio

For those who want the right balance—keeping the look close to stock while changing the sound significantly—replacing the rear speakers is a great option.

People who the KICKER KSS6704 is a good fit for

The KICKER KSS6704 is suited for people like the following:

• You find the sound of the factory rear speakers unsatisfying
• You want the people in the back seats to enjoy the music too
• You want to fine-tune the connection between front and rear sound
• You want a more powerful sound
• You’d like to consult us not only about the speaker replacement, but also about post-installation tuning/adjustments

However, the best installation methods and combinations will vary depending on the vehicle model and your current audio setup. Rather than choosing based on the speakers alone, selecting while considering the vehicle and how you use it will lead to greater satisfaction after the replacement.

Even if you’re considering a rear speaker replacement but don’t know which product or installation method will fit, we can整理 it together by asking about your vehicle model and how you typically listen. Let’s think through a configuration that lets you enjoy music comfortably all the way to the back seats—using a sensible, no-stress setup.

■ Main Specifications / Specs

【Basic Information】
Product name: KSS6704
Brand: KICKER
Type: Rear Separate 2-Way

*Organized based on manufacturer-published information