10 Best Crutchfield Car Audio Upgrades 2026

Power Four Channels With Authority: Delivers 100 watts RMS x 4 at 4 ohms or 150 watts RMS x 4 at 2 ohms, with the option to bridge down to 300 watts RMS x 2.

Keep the Amp Compact and Efficient: Class-D circuitry packs strong output into an 11.12" x 2.14" x 6.92" chassis while supporting a wide 15–45,000 Hz Hi-Res-capable frequency response.

Tune Each Pair of Speakers: Variable high-pass, low-pass, and bandpass filters on the front and rear channels give you more control over how your system handles different frequencies.

Connect to Factory or Aftermarket Sources: Accepts preamp and speaker-level inputs, with speaker-level signals supported up to 10V when used with the required RCA adapters.

Build the Install Around Your System: A 4-gauge power and ground setup is recommended, dual 30A fuses protect the amplifier, and an optional RUX-KNOB.2 remote can control the rear channels.

Power Eight Channels Cleanly: Delivers 40 watts RMS x 8 at 4 ohms or 60 watts RMS x 8 at 2 ohms for multi-speaker systems that need compact, organized amplification.

Dial In the Sound With DSP: Use the 31-band parametric or graphic EQ, adjustable crossovers, phase control, and delay settings to fine-tune each channel from a Windows PC.

Save Multiple Tuning Profiles: Store up to 10 presets, making it easy to switch between different system setups or listening preferences.

Connect Flexible Input Sources: Six assignable preamp and speaker-level inputs feed eight powered, processed outputs, with RCA adapters included for easier integration.

Control and Install With Less Hassle: Includes a wired remote for channels 7 and 8, recommends 8-gauge power and ground leads, and fits into a compact 5-11/16" x 2" x 9-3/8" chassis.

Bring Big Bass Into Small Spaces: A 12" Kicker subwoofer and built-in 230-watt amplifier deliver strong low-end output from a compact enclosure that fits under many vehicle seats.

Tune Bass From the Driver’s Seat: The included wired remote lets you adjust the variable +6 dB bass boost without reaching for the subwoofer itself.

Connect to Nearly Any Factory System: FIT+™ technology accepts signals from 0.25 to 40 volts, helping the HS12 integrate without requiring a separate line output converter.

Shape the Sound Your Way: Adjustable low-pass and high-pass filters, a phase switch, and bass boost controls give you more say over how the sub blends with the rest of your system.

Count on Rugged Construction: An all-aluminum chassis and metal grille protect the woofer, while the included quick-connect wiring harness simplifies power, signal, and remote turn-on connections.

Pack Serious Bass Into Less Space: A shallow subwoofer, 400-watt RMS amplifier, and efficient slot-ported enclosure work together to deliver strong low-frequency output without demanding a huge footprint.

Install It Your Way: Mount the enclosure horizontally or vertically to better fit the available space in your vehicle.

Get More From the Built-In Amp: The ultra-low-impedance subwoofer is engineered to draw maximum usable power from the integrated amplifier.

Boost Output With a Slot Port: The enclosure’s slot-port design improves efficiency and helps produce greater bass output from the compact package.

Rely on a Rugged Build: Made in the USA with automotive carpeting, a steel-mesh grille, 5-way binding posts, and solid internal wiring for durable everyday use.

Add Bass Without Losing Space: A 6.5" subwoofer and 200-watt RMS amplifier fit into a slim enclosure about the footprint of a laptop, making it suitable for under-seat installation.

Keep Low Notes Clean: The aluminum cone and rubber surround are designed for accurate bass with low distortion, while the shallow profile helps save room.

Shape the Bass Response: Adjust the 45 Hz bass boost, variable 50–150 Hz low-pass filter, and phase switch to better match your vehicle and music.

Control Output From the Driver’s Seat: The included wired remote lets you raise or lower bass levels without reaching under the seat.

Connect to Nearly Any System: Line-level and speaker-level inputs make the JW6A compatible with a wide range of factory and aftermarket audio setups.

Block More Road and Panel Noise: Dynamat Xtreme creates a sound barrier inside your doors to reduce unwanted noise and help keep more of your music inside the cabin.

Get More From Your Audio System: Lowering vibration and outside noise can make your speakers sound clearer without requiring more amplifier power.

Control Vibration With Less Bulk: The .044" butyl-and-aluminum material is lightweight yet designed to damp panel resonance more effectively than Dynamat Original.

Apply It Without Heat: Dynamat Xtreme installs without a heat gun and conforms well to curved or irregular vehicle panels.

Cover Both Doors Efficiently: The kit includes four 12" x 36" sheets, with an aluminum layer suited for high-temperature and high-SPL areas.

Cut Door Vibration at the Source: Place the pre-cut sheets behind aftermarket speakers to reduce panel resonance and help your system sound cleaner.

Layer in Better Noise Control: A three-layer construction of acoustic foam, foil, and butyl rubber helps damp vibration while blocking unwanted road noise.

Protect Against Heat and Moisture: Water- and heat-resistant materials are built to handle the conditions inside vehicle doors.

Install With Less Hassle: Self-adhesive backing helps the sheets stay firmly in place without adding a complicated mounting process.

Treat Two Speaker Locations: The kit includes two 12" x 10" sheets, providing 1.7 square feet of material and enough coverage for two speakers.