Rockford Fosgate 12" 300 Watt Single loaded Subwoofer Truck Enclosure — Big Jeff Audio Dealer Platform
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  • Optimized 12" Low Impedance Woofer
  • 300 Watt Class-D Amplifier with Optimized "Closed Loop" Design
  • Adjustable 12db/Octave low pass crossover
  • On Board Adjustable Bass EQ

Rockford Fosgate 12" 300 Watt Single loaded Subwoofer Truck Enclosure P300-12T

The Punch 300-12T is a self-contained subwoofer enclosure with built-in amplifier. This "all in one" solution is great for systems that need extra Punch on the low-end of the frequency spectrum. The 12" high output subwoofer is impedance optimized for the built in 300-watt class-D amplifier that features a low-pass crossover, bass EQ and phase switch. The enclosure can be connected via speaker level inputs for connection to factory systems, or traditional line level inputs for aftermarket systems. It also features an intelligent auto turn-of/off circuit that eliminates the need for a separate turn-on wire. The enclosure itself is precision designed and constructed using MDF (Medium Density Fiberboard) for the best acoustical properties and covered with heat activated vinyl finish to resist marks.

This Listing Includes:

(1) Subwoofer Enclosure

(1) Bass Knob

(1) 16.5' Remote Cable

(1) Quick Disconnect

(2) 10A Fuses

(1) Allen Key

(1) 12" Input Harness

(1) 25" Strip of Hook-and-Loop Fastener


- Optimized 12" Low Impedance Woofer

- 300 Watt Class-D Amplifier with Optimized "Closed Loop" Design

- Adjustable 12db/Octave low pass crossover

- On Board Phase Switch

- Intelligent auto turn on/off function

- Robust Power/Ground connections

- Quick Input Connections for Easy Removal

- On Board Adjustable Bass EQ

- Remote bass level control included

- Separate low level and speaker level inputs

- Precision Constructed MDF Enclosure with Heat Activated Vinyl Finish

- Thermal and over/under voltage protection

- Slim Design For Truck Applications


Frequency Response: 20 Hz to 200 Hz

Woofer Quantity: 1

Woofer Size: 12"

Woofer Series: Proprietary

Power Handling(Watts RMS): 300 Watts RMS

Enclosure Type: Sealed

Enclosure Material: 5/8" MDF (Medium Density Fiberboard)

Integrated Amplifier: 300 Watts RMS

Phase Control: 0 to 180

Remote Control: Punch Level Control (Included)

Signal Input: Low/High-Level: 1 RCA Pair (L/R Summed)

Input Impedance: 20k Ohms

Power Input Connector: Quick Disconnect

Circuit Topology Class: Class-D

Heatsink Type: Extruded Aluminum

Cooling: Convection

Visual Indicators: Power/Protect LED

Fuses: 20 Amp (2 x 10 Amp ATO Fuse)

Crossover Controls:

Variable 50 Hz to 200 Hz

12dB/Octave Butterworth

Tone Controls:

Bass Boost

0 dB to +12 dB

Auto Turn-On Selector:

Remote Trigger

DC Offset Sense

Audio Sense

Input Switch:

High-Level (Speaker Line)

Low-Level (RCA)

Input Sensitivity:

Low-Level: 150 mV to 6 V

High-Level: 300 mV to 12 V

Power Wire Gauge:




Box H x W x D: 15" x 25.8" x 4.8" x 8.5"

Wedge H x W x D1 x D2: 380 mm x 656 mm x 122 mm x 215 mm

Payment Information


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With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

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payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

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Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


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please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.