Car speaker BLOW 30-803# — Round 2-way 80 W, 4 Ω, Ø129×45 mm, 1 pc

BLOW 30-803# is a round 2-way car speaker designed for use as a single replacement unit or as part of a custom vehicle audio system. With a peak power rating of 80 W and a nominal impedance of 4 Ω, this compact speaker measures Ø129 mm in diameter and 45 mm in mounting depth. The two-way configuration separates low and high frequency reproduction to improve clarity and provide more balanced sound compared with simple full-range drivers.

Advantages

The 2-way design delivers clearer highs and better-defined lows by assigning high-frequency duties to a separate tweeter and mid/low handling to the woofer cone. Its shallow 45 mm depth allows installation in tighter factory mounting locations where deeper drivers may not fit. The 4 Ω impedance is compatible with most car head units and aftermarket amplifiers, enabling straightforward integration into existing vehicle audio systems.

Suitable for

• Replacing a damaged or worn factory door or dash speaker of similar size
• Small custom car audio projects where compact depth is required
• Upgrading sound clarity in budget or mid-range vehicle audio systems

Key specifications

• Speaker type: round 2-way coaxial
• Peak power: 80 W
• Nominal impedance: 4 Ω
• Diameter: 129 mm (Ø129)
• Mounting depth: 45 mm
• Configuration: single unit (sold individually)

How to use

Confirm that the speaker diameter and mounting depth match the intended location in the vehicle before installation. Disconnect the vehicle battery or power to the audio system, remove the existing speaker and wiring harness if present, then connect the new speaker, observing correct polarity for left/right channels. Secure the speaker using appropriate screws or mounting hardware, reattach trim panels, and restore power. Test playback at low volume first and increase gradually to verify correct operation.

Usage recommendations

For best performance, pair the speaker with a source unit or amplifier that can drive a 4 Ω load and avoid exceeding the peak power rating for prolonged periods. Use proper sealing or mounting adapters to minimize vibrations and improve bass response in door or dash installations.