Nakamichi NSE6958 6x9" 3-Way Coaxial Speakers - Maximum Performance

Experience the ultimate in coaxial speaker performance—premium 6x9" 3-way speakers with subwoofer-level 40Hz bass extension.

Product Overview

The Nakamichi NSE6958 is a flagship 6x9-inch (15.2 x 22.9cm) 3-way coaxial speaker system engineered for maximum automotive audio performance without dedicated subwoofers. Delivering 500W peak power and 75W continuous N-Power with an exceptional 40-20kHz frequency response, these speakers reproduce bass depth approaching dedicated subwoofer systems while maintaining pristine midrange and treble clarity. The advanced 3-way configuration features a large oval woofer for bass authority, separate midrange driver for vocal accuracy, and precision-tuned composite/PEI dome tweeter for extended high frequencies—providing audiophile-grade sound staging across the entire audible spectrum. With 89dB sensitivity, 4-ohm impedance, 25.5mm ASV voice coil, and massive 577g magnet assembly housed in an 85mm depth enclosure, the NSE6958 delivers powerful, detailed audio reproduction with professional power handling. The injection-molded polypropylene cone and treated foam surround ensure consistent performance during extended use in Australian conditions. At 2.6kg per speaker with complete grilles, mounting hardware, gaskets, and template included, these premium speakers represent maximum coaxial performance for rear deck installations, custom builds, and serious audio systems in utes, wagons, SUVs, and sedans where 6x9-inch format provides unmatched bass output and volume capability.

Key Specifications

• Premium 6x9-inch (15.2 x 22.9cm) 3-way coaxial speaker system
• 500W peak power handling
• 75W continuous N-Power (RMS equivalent)
• Exceptional frequency response: 40Hz - 20kHz
• 89dB ± 3dB sensitivity
• 4Ω impedance
• Deep mounting depth: 85mm (3.35 inches)
• 25.5mm ASV (Aluminium Silicon Voice Coil)
• Massive 577g (20.35oz) magnet assembly
• Professional construction: 2.6kg per speaker
• 3-way design (woofer + midrange + composite/PEI tweeter)
• Injection-molded polypropylene cone
• Treated foam surround
• Premium internal crossover
• Complete kit: grilles, hardware, gaskets, template included

Features & Benefits

Subwoofer-Level Bass Extension: Extraordinary 40Hz low-frequency response matches entry-level subwoofer performance—reproduces deep electronic music sub-bass, kick drum fundamentals, cinema soundtrack rumble, and bass guitar low notes with authority that eliminates subwoofer necessity in many applications, saving space and installation complexity in utes and wagons.

Maximum Cone Surface Area: The 6x9-inch oval format provides approximately 58 square inches of cone area—significantly more than 6.5-inch round speakers (33 square inches)—moving substantially more air for higher maximum bass output, greater volume capability, and more dynamic sound reproduction without requiring external amplification for impressive performance.

Professional 3-Way Configuration: Dedicated woofer handles bass frequencies, separate midrange driver reproduces vocals and instruments with clarity, independent composite/PEI dome tweeter delivers smooth extended highs—this three-driver specialization provides superior tonal accuracy, detail separation, and sound staging compared to 2-way designs where single cone compromises midrange clarity.

High-Power Handling: 500W peak with 75W continuous power accommodates factory headunits (20-30W), aftermarket headunits (30-50W), and powerful external amplifiers (100-150W per channel)—provides complete system flexibility from basic upgrades through competition-level builds without speaker replacement, protecting investment as systems evolve over time.

Massive Magnet Assembly: Exceptional 577g magnet mass—more than double typical 6.5-inch speakers—provides tremendous motor force and thermal capacity for consistent high-output performance—maintains bass control and clarity during extended high-volume listening without power compression, distortion, or thermal limiting during marathon music sessions on outback touring.

Premium Tweeter Design: Composite paper cone paired with PEI (Polyetherimide) dome tweeter delivers wide frequency range with smooth, natural high-frequency reproduction—ensures extended listening comfort during long Australian highway drives without the harshness or fatigue common in cheaper metal dome designs, maintaining audio quality for hours.

Treated Foam Surround: Specially treated foam surround maintains consistent excursion characteristics and sound quality during extended operation—resists degradation from Australian heat, UV exposure, and humidity better than untreated materials, ensuring long-term reliability in vehicles used for remote touring or stored outdoors in harsh conditions.

Hidden Internal Crossover: Premium crossover network housed internally within speaker basket delivers proper frequency distribution to woofer, midrange, and tweeter—provides cleaner visual appearance compared to external crossovers while simplifying installation with single wire pair connection to each speaker for professional, streamlined system integration.

Technical Specs

• Type: 3-way coaxial speaker system
• Size: 6x9 inches (152mm x 229mm oval)
• Configuration: Woofer + separate midrange + composite/PEI dome tweeter
• Peak Power Handling: 500W
• Continuous N-Power: 75W (RMS)
• Frequency Response: 40Hz - 20kHz
• Sensitivity: 89dB ± 3dB (1W/1m)
• Impedance: 4Ω
• Mounting Depth Required: Greater than 85mm (3.35 inches)
• Mounting Dimensions: 152mm x 229mm (6x9 inches oval, verify exact cutout)
• Voice Coil: ASV (Aluminium Silicon) 25.5mm diameter
• Voice Coil Former: High-temperature resistant material
• Magnet Type: Ferrite
• Magnet Mass: 20.35oz (577g)
• Woofer Cone: Injection-molded polypropylene composite
• Cone Surround: Treated foam
• Midrange: Treated composite paper cone
• Tweeter: PEI (Polyetherimide) dome
• Crossover: Premium internal design (hidden)
• Basket Material: Stamped steel or polymer
• Connections: Push terminals or spade connectors
• Net Weight: Approximately 2.6kg per speaker
• Quantity: Sold as pair

Package Includes:

• Speakers x 2
• Grille net + frame x 2 sets
• Mounting screws (Φ4 x 25mm) x 8
• Foam gaskets x 8
• User manual x 1
• Mounting template x 1

Frequently Asked Questions

Can these 6x9-inch speakers replace a subwoofer in my system?

In many applications, yes. The exceptional 40Hz bass extension approaches entry subwoofer performance—reproduces bass fundamentals that most speakers miss entirely. For casual listening, rock, country, and acoustic music, these may eliminate subwoofer necessity. However, bass-heavy electronic music, hip-hop, or cinema soundtracks still benefit from dedicated subwoofers extending below 40Hz for ultimate impact.

Where do 6x9-inch speakers typically install in vehicles?

Most common location is rear deck/parcel shelf in sedans and coupes—factory 6x9 locations designed for these speakers. Also: rear cargo areas in wagons and SUVs, behind rear seats in dual-cab utes, custom enclosures in 4WDs, and some door installations (less common). Always verify both mounting dimensions (152x229mm) and depth clearance (85mm+) before purchase.

Why choose 6x9-inch over 6.5-inch round speakers?

6x9 oval speakers provide ~75% more cone surface area than 6.5-inch round speakers—significantly more air movement for deeper bass, higher maximum volume, and more dynamic sound. The larger magnet (577g vs 248-284g) and higher power handling (500W vs 260-360W) deliver superior performance. Choose 6x9 if your vehicle accommodates them and maximum output is priority.

Do these require external amplification or work with factory power?

Both. The 75W continuous rating works with factory headunits (20-30W), delivering good performance with impressive bass output from large cone area alone. However, these flagship speakers truly excel with external amplification (100-150W per channel)—unlocking full dynamic potential, superior bass control, and maximum volume. Highly recommended for serious audio builds and competition systems.

How much depth clearance do I need for 85mm mounting depth?

Measure from mounting surface to trunk lid, rear window, or any obstructions. Need minimum 90mm clearance for safe installation including gasket thickness and wiring space. Most sedans, coupes, and wagons accommodate 85mm rear deck speakers easily. If limited to under 70mm depth, 6.5-inch speakers are better option despite sacrificing some bass output.

Compatible With / Goes Well With

Ideal Installation Locations:

• Rear deck/parcel shelf (sedans, coupes—most common)
• Rear cargo areas (wagons, SUVs, hatchbacks)
• Behind rear seats (dual-cab utes, crew cab trucks)
• Custom enclosures (4WD cargo areas, van conversions)
• Factory 6x9 locations with adequate depth clearance

Recommended Vehicle Types:

• Sedans with rear deck 6x9 locations (Commodore, Falcon, Camry, Accord)
• Coupes with rear parcel shelf installations
• Wagons with rear cargo area speaker positions
• Dual-cab utes with behind-seat mounting space
• Classic cars and muscle cars (traditional 6x9 format)

Essential Installation Accessories:

• 6x9-inch speaker adapter plates (vehicle-specific)
• 12-14 gauge speaker wire (quality OFC copper)
• Wire connectors or solder/heatshrink tubing
• Speaker baffles or foam gaskets (included, extras if needed)
• Sound deadening material (rear deck/cargo area)
• Mounting template (included)
• Panel removal tools

Recommended Audio Systems:

• External 4-channel amplifiers (100-150W per channel)
• Premium aftermarket headunits (50-75W per channel)
• Digital sound processors for advanced tuning
• Component speakers for front stage (6x9 for rear fill)
• Active subwoofers complementing 40Hz bass extension

System Enhancement Products:

• 4-channel amplifier (strongly recommended, 100-150W per channel)
• Component speakers for front stage (superior imaging)
• Active subwoofer for bass below 40Hz (optional)
• Comprehensive sound deadening treatment
• Bass restoration processor (compressed audio sources)
• High-current wiring kit (4-gauge for amplifier power)

Audio Sources:

• High-resolution audio files (FLAC, WAV, Apple Lossless)
• Premium streaming services (Tidal HiFi, Amazon Music HD)
• CD-quality or better source material
• Aftermarket headunits with quality DACs
• Digital music players with line outputs

Caution: Verify both mounting dimensions (152x229mm oval) AND depth clearance (85mm+) before ordering. 6x9 speakers are larger and heavier (2.6kg) than 6.5-inch alternatives—ensure mounting surface supports weight without flexing. Test trunk lid, rear window, and cargo area clearance to prevent interference. Professional installation recommended for optimal positioning, secure mounting, and proper wiring to handle 500W peak power.

Weight

2.6kg per speaker.