Nakamichi NSA-CS1721 6.75-Inch Complete Dual Component Car Speaker Upgrade Package (2 Pairs / 4 Woofers + 4 Tweeters | 460W Peak Total)

Product Overview

Experience complete studio-grade sound staging and vocal precision across all four doors of your vehicle with the Nakamichi NSA-CS1721 Dual Component Speaker Package. Designed for car audio enthusiasts who reject standard rear coaxial speakers, this premium package includes 2 Full Pairs of Nakamichi NSA-CS1721 6.75-inch 2-Way Component Systems—delivering matching vocal height, deep mid-bass impact, and crystal-clear high frequencies for both front and rear passengers. Featuring composite polypropylene woofer cones, independent silk dome tweeters, and heavy-duty voice coil motors, this 4-door setup handles power with low distortion and crisp acoustic detail.

Key Features & Performance Highlights

• Matching 4-Door Component Architecture: Upgrades both front and rear cabin stages with separate mid-bass woofers and independent silk dome tweeters for full-cabin acoustic balance.

• Composite Polypropylene Woofer Cones: Lightweight, high-rigidity cone design produces punchy, controlled mid-bass slam and smooth midrange vocal response without panel flex distortion.

• Independent Silk Dome Tweeters: 20mm silk dome tweeters deliver soft, detailed, non-fatiguing high frequencies with wide off-axis sound dispersion.

• High Output Power Handling: Handles up to 230W Peak / 35W RMS per pair (460W Peak Total across both sets), providing high volume capability and dynamic headroom.

• External Passive Crossover Networks: Dedicated crossover modules manage frequency separation between woofers and tweeters to protect drivers and maintain vocal purity.

Technical Specifications

• Brand & Model: Nakamichi NSA-CS1721

• Package Includes: 2 Complete Sets (2 Pairs / 4 Woofers + 4 Tweeters + 4 Crossovers)

• Speaker Type: 2-Way Component Speaker System

• Woofer Size: 6.75 Inch (171 mm) / Fits 6.5" Slots

• Power Handling (Per Pair): 35W RMS / 230W Peak

• Total System Power Handling (2 Pairs): 70W RMS / 460W Peak

• Sensitivity (@ 2.83V/1M): 88 dB

• Frequency Response: 70 Hz – 20,000 Hz

• Acoustic Impedance: 4 Ohms

• Tweeter Type: 20mm Silk Dome Tweeter

• Woofer Cone Material: Composite Polypropylene Cone with Rubber Surround

Frequently Asked Questions (FAQs)

1. Why install component speakers in both the front and rear doors instead of coaxials?

Installing component speakers in both front and rear doors places independent tweeters higher up on door panels or pillars in the back as well. This elevates rear passenger vocals, eliminates muddy footwell treble, and creates a balanced 360-degree surround sound stage.

2. Will these 6.75-inch Nakamichi speakers fit my vehicle's 6.5-inch door slots?

Yes. The Nakamichi NSA-CS1721 features multi-hole mounting frame patterns designed to fit both standard 6.5-inch and oversized 6.75-inch factory speaker cutouts across most modern cars and SUVs.

3. Can I run these 2 pairs of component speakers directly off my head unit?

Yes. With a 4-ohm impedance and efficient motor structure, they run smoothly on aftermarket or factory Android head units. However, connecting them to a dedicated 4-channel power amplifier will unleash their full mid-bass power and dynamic sound clarity.

4. What components are included inside the package?

The complete package includes 4 x 6.75" composite mid-bass woofers, 4 x 20mm silk dome tweeters with mounting pods, 4 x external passive crossover networks, protective grilles, and installation hardware.