Home/Equipment/Subwoofers/Rockford Fosgate/P2D4-8

Rockford Fosgate P2D4-8 Subwoofer

Name: Rockford Fosgate P2D4-8 Subwoofer
Brand: Rockford Fosgate
Price: 149.99 USD
Availability: OutOfStock

The Rockford Fosgate P2D4-8 is a high-performance subwoofer featuring a 2-inch cone with dual 4 voice coil configuration. Designed for deep bass reproduction and high SPL output.

Used in 0 builds

View All Rockford Fosgate Subwoofers

Specifications

voice coil config

Thiele-Small Parameters

Measured at small signal levels per AES standards

Electromechanical

F_s(Resonant frequency)

43 Hz

R_e(DC resistance)

6.9 Ω

L_e(Inductance)

4.3 mH

Q Factors

Q_ts(Total Q)

0.52

Q_es(Electrical Q)

0.58

Q_ms(Mechanical Q)

5.4

Compliance & Mass

V_as(Equiv. volume)

9.9 L

S_d(Piston area)

221 cm²

Excursion

X_max(Linear excursion)

7.7 mm

Sensitivity

SPL₀(1W/1m)

83 dB

Power Handling

P_e(RMS power)

250 W

Parameters measured per AES2-1984 (r2003) standards. Small-signal parameters valid within linear operating region.

Where to Buy

Updated 4/12/2026

Search for this product on Amazon

Price and availability may vary. Click to verify current pricing.

Need this installed?

Browse 42+ professional car audio installers in our network

Find an Installer

Frequently Asked Questions

What is the Rockford Fosgate P2D4-8?

The Rockford Fosgate P2D4-8 is a car audio equipment made by Rockford Fosgate. View full specifications and where to buy on this page.

How much does the Rockford Fosgate P2D4-8 cost?

The Rockford Fosgate P2D4-8 typically sells for around $150 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the Rockford Fosgate P2D4-8?

You can purchase the Rockford Fosgate P2D4-8 from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.