Nakamichi NBX25M 10" Active Subwoofer Box with Extended Frequency Range

Experience powerful, extended bass from 30Hz to 300Hz—active subwoofer with built-in amplifier and exceptional mid-bass response.

Product Overview

The Nakamichi NBX25M is a premium 10-inch active subwoofer box featuring an integrated amplifier and exceptional frequency range extension. Delivering 1000W peak power and 150W continuous N-Power with an impressive 30-300Hz frequency response, this innovative system bridges the gap between deep sub-bass and punchy mid-bass for comprehensive low-frequency reproduction. The high-performance design combines a 4-ohm subwoofer with 35.5mm ASV voice coil and robust 907g Y25 magnet structure for exceptional power handling and thermal management. At just 7.6kg for the complete system, the NBX25M offers professional-grade bass performance in a lightweight, easy-to-install package that fits in boots, behind seats, or in cargo areas of utes, SUVs, and hatchbacks. The extended frequency range captures everything from deep electronic bass to kick drum attack and bass guitar fundamentals—perfect for Australian drivers seeking full-spectrum bass enhancement without complex installations or heavy equipment.

Key Specifications

• 10-inch active subwoofer with built-in amplifier
• 1000W peak power output
• 150W continuous N-Power (RMS equivalent)
• Extended frequency response: 30-300Hz
• 87dB ± 3dB sensitivity
• 4Ω impedance
• 35.5mm ASV (Aluminium Silicon Voice Coil)
• Y25 magnet: 120 x 60 x 20mm (907g / 32oz)
• Lightweight construction: 7.6kg complete system
• All-in-one active design (no external amplifier required)
• Universal vehicle fitment

Features & Benefits

Extended Frequency Range: Exceptional 30-300Hz response captures deep sub-bass rumble at 30Hz through to punchy mid-bass at 300Hz—provides fuller, more complete low-frequency reproduction than typical subwoofers limited to 40-160Hz, ensuring kick drums, bass guitars, electronic music, and movie soundtracks sound rich and impactful.

Built-In Amplifier Convenience: Integrated 150W amplifier eliminates separate amplifier purchase, installation complexity, and mounting space requirements—simply connect power and audio signal for instant bass enhancement, saving installation time and reducing component costs compared to traditional passive subwoofer systems requiring external amplification.

Lightweight Professional Performance: At just 7.6kg complete, the NBX25M delivers 10-inch subwoofer performance without the weight penalty of heavier systems—easier to transport, install, and mount securely without stressing mounting points or consuming excessive cargo weight capacity in touring vehicles carrying camping gear.

High-Power Magnet Assembly: Substantial 907g (32oz) Y25 magnet structure provides excellent motor force and thermal capacity, ensuring consistent bass output during extended listening sessions without compression or overheating—critical for long Australian road trips, outback touring, or marathon music sessions during beach camping.

Professional-Grade Voice Coil: 35.5mm ASV (Aluminium Silicon) voice coil construction delivers efficient heat dissipation and power handling, maintaining linear excursion and low distortion even at higher output levels—ensures your bass remains clean, tight, and controlled rather than muddy or distorted during dynamic music passages.

Powerful Bass Output: 1000W peak power with 150W continuous N-Power produces deep, punchy bass that brings life to music, movies, and audio content during daily commuting, highway cruising, or weekend adventures across Australia without overwhelming cabin space or draining electrical systems excessively.

Universal Vehicle Compatibility: Standard connections and mounting configuration work with virtually any vehicle make and model—from compact city cars to full-size 4WDs—providing flexible installation options whether you're upgrading factory audio or complementing an aftermarket speaker and amplifier system.

Efficient Integration: Accepts line-level RCA inputs from aftermarket headunits or factory systems (with line output converter), making integration straightforward for both professional installers and experienced DIY enthusiasts without complex crossover configuration or signal processing requirements.

Technical Specs

• Type: Active Subwoofer Box (powered, built-in amplifier)
• Subwoofer Size: 10 inches
• Peak Power Output: 1000W
• Continuous N-Power: 150W
• Frequency Response: 30Hz - 300Hz (extended range)
• Sensitivity: 87dB ± 3dB (1W/1m)
• Impedance: 4Ω
• Voice Coil: ASV (Aluminium Silicon) 35.5mm diameter
• Voice Coil Former: High-temperature resistant material
• Magnet Type: Y25 Ferrite
• Magnet Dimensions: 120mm x 60mm x 20mm
• Magnet Weight: 32oz (907g)
• Enclosure Type: Sealed/ported (verify from product specifications)
• Net Weight: Approximately 7.6kg (complete system)
• Mounting: Universal (verify mounting configuration)
• Connections: RCA line-level input, power/ground/remote connections
• Operating Voltage: 12V DC (typical automotive)
• Protection: Short circuit, thermal overload (typical for active subwoofers)

Frequently Asked Questions

What makes the 30-300Hz frequency range different from typical subwoofers?

Most subwoofers cover 40-160Hz, focusing on deep bass only. The NBX25M's 30-300Hz range extends lower (30Hz captures ultra-deep sub-bass) and higher (300Hz covers mid-bass punch). This fuller range reproduces kick drum attack, bass guitar notes, and electronic music more completely without gaps between subwoofer and main speakers.

Do I need a separate amplifier with this subwoofer?

No, the NBX25M is an active subwoofer with built-in 150W amplifier. Simply connect power (12V directly from battery with inline fuse), ground, remote turn-on, and audio signal from your headunit's subwoofer output. No external amplifier purchase or installation required—significant cost and complexity savings.

How much power does this draw from my vehicle's electrical system?

At 150W continuous power, the subwoofer draws approximately 15-20 amps peak from your 12V system during maximum output. Most factory alternators handle this easily. Use minimum 8-gauge power cable with 20-30 amp inline fuse positioned within 450mm of battery connection for safety and optimal performance.

Can I connect this to my factory stereo system?

Yes, but factory stereos typically don't have dedicated RCA subwoofer outputs. You'll need a line output converter (LOC) to tap into factory speaker wires and convert the signal to line-level RCA that the active subwoofer requires. This allows bass enhancement while maintaining your factory headunit and warranty coverage.

What's the advantage of the lighter 7.6kg weight?

Lighter weight makes installation easier—one person can lift and position the subwoofer without assistance. It also reduces mounting stress on brackets, allows more flexible placement options, and leaves more cargo weight capacity for gear, equipment, or passengers during touring without exceeding vehicle payload limits.

Compatible With / Goes Well With

Vehicle Types:

• Compact hatchbacks and sedans (lightweight installation)
• Mid-size SUVs and wagons (boot or cargo area mounting)
• Utes and dual-cab trucks (behind-seat or under-seat options)
• 4WD touring vehicles (maintains cargo capacity)
• Universal fitment (any vehicle with 12V electrical system)

Essential Installation Accessories:

• 8-gauge amplifier wiring kit (power, ground, remote cables)
• 20-30 amp inline fuse holder
• RCA audio cables (shielded for noise rejection)
• Line output converter (for factory stereo integration)
• Sound deadening material for enclosure mounting area
• Subwoofer mounting brackets, straps, or velcro
• Wire management ties and grommets

Compatible Audio Components:

• Aftermarket headunits with subwoofer pre-output
• Factory audio systems (with line output converter)
• Multi-channel amplifiers with subwoofer crossover
• Component speaker systems needing full-range bass support
• Full-range coaxial speakers requiring low-frequency extension

System Enhancement Products:

• Bass remote control (if unit supports external control)
• Capacitor for electrical system stabilization (optional)
• Digital sound processors for precise tuning
• Additional sound deadening for improved acoustic performance
• Secondary subwoofer for dual-subwoofer configuration (space permitting)

Caution: Verify your vehicle's electrical system capacity supports the subwoofer's power requirements. Ensure secure mounting to prevent movement during driving. Professional installation strongly recommended for proper power distribution, grounding, signal integration, and acoustic placement optimization.

Weight

7.6kg per unit.