Pioneer TS-A4103 4×10″ A-Series 2-Way Coaxial Speakers

4×10 rear-deck coaxials

The 4×10 oval is a classic rear-deck size in many trucks and older cars. TS-A4103 fills that slot with 35 W RMS / 120 W peak on 4 ohms and 91 dB sensitivity, so it supports the front stage without demanding a huge amplifier.

IMPP cone and urethane surround

Injection Molded Polypropylene gives the oval woofer the stiffness Pioneer wants for midbass punch, while a urethane surround keeps travel controlled. A 1.65-inch tweeter handles the top end across a 38 Hz to 23 kHz window.

Deck cutout checklist

Plan on 2-1/2 inches (64 mm) of mounting depth and a 9-1/2 by 3-7/8-inch cutout. Measure the factory oval before ordering, and keep continuous power near 35 W RMS per speaker for clean output.

• 4x10-inch A-Series 2-way coaxials sold as a matched pair
• 35 watts RMS and 120 watts peak power handling at 4 ohms
• Injection Molded Polypropylene woofer with urethane surround
• 1.65-inch tweeter for extended highs on the rear deck
• Frequency response of 38 Hz to 23 kHz with 91 dB sensitivity
• Mounting depth 2-1/2 in (64 mm)
• Cutout approximately 9-1/2 in x 3-7/8 in

• Sold as a pair intended for 4x10-inch rear-deck or door ovals.
• Measure cutout and 2-1/2-inch depth against the vehicle before purchase.
• Vehicle-specific dash adapters and harnesses are sold separately when a factory opening needs them.

• Pioneer TS-A4103 speaker pair
• Mounting screws

• Pioneer TS-A4103 product page
• Pioneer support: TS-A4103