Amplifier Features
Amplifier Controls
Amplifier Inputs and Outputs
Amplifier Wiring Recommendations
Amplifier Specifications
Woofer Features
Woofer Specifications

Amplifier Features

Phase Warp: The phase warp is a variable control used to adjust the phase of the output signal relative to the phase of the input signal.  Phase warp is most noticeable when the audio system is playing a sine wave (test tone).  Also, when used with the proper test equipment, the phase warp variable control can increase the relative SPL in an audio system.

Cast Aluminum Heatsink: The cast aluminum heatsink dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs.

transNOVA (TRANSconductance NOdal Voltage Amplifier): The transNOVA circuit makes the amplifier more reliable, producing cleaner performance and musicality. This is done by using two separate power supplies. One supply drives the critical signal path components at low voltage, and the second drives the strong high current components. 

MEHSA (Maximum Efficiency Heat Sink Application): MEHSA is a Rockford Fosgate proprietary process that increases the heat transfer from the MOSFET devices to the heatsink. The multi-layer insulated metal MEHSA substrate operates with minimal thermal resistance, spreading heat both downward and outward to quickly dissipate heat from each device across the heatsink. This allows greater power output, enhanced thermal stability, and maximum reliability.

TOPAZ (Tracking Operation Pre-Amplifier Zone): TOPAZ is a circuit that simply eliminates noise. The TOPAZ circuit allows the amplifier ground to move with the source unit ground, creating a "noise elimination" zone just before the preamp section. If there is any noise in the ground coming down the RCA line to the amplifier, TOPAZ amazingly tracks it down and eliminates it. The result is a 30-40dB improvement of the isolation between input ground and chassis ground. 

NOMAD (NOn-Multiplying Advanced Decision): NOMAD is an intelligent protection circuit that uses an analog computer to make real time decisions regarding temperature, voltage, current and impedance. The unit is protected without limiting sound output unless needed.

DSM (Discrete Surface Mount): In the manufacturing process high speed robotics are used to place 0% tolerance resistors and large board traces providing greater reliability and efficiency.

INDIGO (INDexed Ideal Gain Operation): INDIGO is a circuit that maximizes the output power of the amplifier by making better use of the power supplied by the car. As the battery voltage drops, INDIGO tightens up so the amplifier delivers the rated power, resulting in more consistent power coming from the amp.

Internal Crossover: The internal crossover is a 24dB/octave Butterworth filter selectable for high-pass, full range, or low-pass operation variable from 50Hz to 250Hz..

Remote Punch Bass: The Punch Bass helps correct for acoustical deficiencies in the listening environment by helping reproduce full range sound without adding excessive boost. The Punch Bass control operates for the rear channels only, and has a narrow band adjustment centered at 45Hz, variable from 0dB to +18dB. Using the mounting bracket, the supplied Punch Bass wired remote can be mounted in any convenient location under your vehicle's dash. The wired remote is 2.317" wide, 1.523" tall and 2.035" deep. The included cable is 15' in length.

RCA Pass-Thru Jacks: The pass-thru jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. The pass-thru jacks output a full-range signal.

RF Center Badge: For installation flexibility, the RF center badge can be rotated 180 degrees. The LED power indicator is located under the badge and is visible through it when power is supplied to the amp.

Amplifier Controls

Right Side Of Amplifier:

• Crossover Switch: allows you to select high-pass, full range, or low-pass crossover operation
• Crossover Frequency: the crossover frequency control is variable from 50Hz to 250Hz
• Left Gain: this variable gain control allows you to adjust the output level of the left channel
• Right Gain: this variable gain control allows you to adjust the output level of the right channel
• Phase Warp: this variable control allows you to adjust the phase of the output signal relative to the input signal

Amplifier Inputs and Outputs

Right Side Of Amplifier:

• Line Inputs: 1 pair gold-plated RCA jacks
• Pass-Thru Line Outputs: 1 pair gold-plated RCA jacks
• Remote Punch Bass: RJ-14 jack for use with supplied Remote Punch Bass wired remote
• Speakers: Gold-plated set screw terminals will accept up to 8 gauge speaker wire

Left Side Of Amplifier:

• GND: gold-plated set screw terminal that will accept up to 4 gauge ground wire
• B+: gold-plated set screw terminal that will accept up to 4 gauge power wire
• REM: gold-plated 0.250" male quick-slide for remote turn-on lead (Note: A female quick-slide is not supplied.)

Fuse Requirements: The amplifier requires one 100-amp fuse (not supplied).

Amplifier Wiring Recommendations

Wiring Recommendations: This amplifier uses one 100-amp fuse, so its fuse rating exceeds that of typical 4 gauge wiring kits, which tend to include a 60-amp fuse. For 100-amp fuse protection, an ANL wafer style fuse is required, but none of the 4-gauge wiring kits include a ANL-style fuse holder. Since pre-packaged amplifier wiring kits cannot be used alone, you may purchase all the necessary items separately, or you may use a pre-packaged 4 gauge wiring kit along with an ANL-style fuse holder and a 100-amp ANL wafer fuse. If you do not use a wiring kit with the necessary additional items, the separate parts and wiring needed to install this amplifier are as follows:

• 1 ANL wafer-style fuse holder capable of accepting 4 gauge wire
• One 100-amp ANL wafer fuse
• 2 power rings for 4 gauge cable
• 4 gauge power cable (to connect the battery to a fuse holder and the fuse holder to the amplifier)
• 4 gauge ground cable 
• Remote turn-on cable (speaker wire can be used as remote turn-on cable)
• 1 stereo RCA patch cables
• Speaker wire

Amplifier Specifications

Dynamic Power Rating (measured at 14.4V):

• Bridged Into A 4-Ohm Load: 1050 watts x 1
• Per Channel Into A 2-Ohm Load: 525 watts x 2
• Per Channel Into A 4-Ohm Load: 262.5 watts x 2

Dimensions: 

• Without Endcaps: H=2.4375", D=9.875", W=14.875"
• With Endcaps: H=2.4375", D=9.875", W=18.4375"

Woofer Features

Dual Voice Coils: For increased system flexibility, the woofer has two 4" 2 ohm voice coils. When the voice coils are wired in parallel with each other, the woofer presents a 1 ohm mono load. When the voice coils are wired in series with each other, the woofer presents a 4 ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 2 ohm load.

FIBERLock Cone: This new high performance paper stock is a combination of natural and regenerated cellulose fibers interlaced with a third, longer fiber. The three natural fibers are chemically fused together with a blend of three interactive binding agents. The extremely high fibril strength and toughness comes from the combination of all six of these component layers. FIBERLock is light, tough and it's proven to have superior sound quality and incredible durability. The cone is then treated with a Thermally Cured Acrylic Emulsion that seals the cone body for exceptional damping and even greater rigidity, resulting in industrial strength power handling.

BART Santoprene Rubber Surround: The BART surround has a large roll to assure maximum cone travel. By increasing cone travel, the BART surround allows the woofer to produce more bass. Santoprene is a durable and temperature tolerant rubber material that provides the consistent support needed for linear speaker cone motion. In addition, the damping capabilities of santoprene eliminate the transmission of sonic disturbances between the cone and the frame of the speaker, improving the accuracy of the woofer's low frequency response.

Punch LX Cast Basket: The woofer uses a cast aluminum frame that reduces frame flex and offers increased stability over a stamped steel frame. This frame offers the lowest coloration of sound due to the added strength. To help prevent the spider from hitting the bottom of the basket ("soft bottoming"), the LX Cast basket features a deep step that moves the physical boundaries of the basket further away from the spider; this allows the cone far greater travel and, therefore more bass, without soft bottoming.

Aluminum Formers: The aluminum formers allow the voice coils to efficiently dissipate heat, resulting in improved power handling.

Dual Laminated Progressive Flat Spider: The dual laminated progressive flat spider provides a very strong suspension for the woofer. A secondary spider is fused to the primary spider near the critical voice coil bonding point. The combination of the two spiders, in addition to the progressive rolls in the spiders, provides the ultimate in linear control for high excursion capability.

Hyper-Extended Pole Piece: The pole piece is extended in length to lower distortion and provide better low frequency response by operating the voice coil in a linear fashion throughout its travel in the magnetic field.

Punch LX Long Xmax Voice Coils: The L-xtended winding coils allow the voice coil to stay in the magnetic gap longer, resulting in less distortion and more control. Combine the L-xtended coil with the hyper-extended pole piece and the result is a huge magnetic sweet spot and deeper, louder, cleaner bass.

Vented Bumped Back Plate: The back plate has been bumped to allow the woofer more room for excursion without bottoming out. Additionally, "Aerovent" cooling efficiently and quietly circulates cool air around the voice coil using a back plate that is vented with a radiused aerodynamic back vent. By keeping the voice coil cooler, power handling is improved.

Rubber Magnet Boot: A black rubber boot covers the exposed edge of the magnet structure to improve the cosmetics of the woofer and protect the magnet during installation. The rubber boot looks great when the woofer is mounted in an enclosure with a window that allows you to see the back of the woofer.

CONsealer Gasket: A newly designed front gasket conceals mounting screws and provides an airtight seal between the woofer frame and the mounting surface. A better seal increases the amount of bass due to the elimination of air leaks.

Binding Posts: The woofer has two sets of 5-way platinum binding posts, one set for each voice coil. The binding posts will accept banana plugs, dual banana plugs, spade connectors, pin connectors and bare wire.

Enclosure Compatibility: This woofer can provide extended bass in sealed and ported enclosures (see the "Specifications" section for more information on enclosures).

Woofer Specifications

Recommended Sealed Box Volume: Rockford Fosgate recommends a 1.0 cu/ft sealed enclosure.

Recommended Ported Box Volume: The ported box volume range recommended by Rockford Fosgate is 1.75 cu/ft to 4.0 cu/ft. Within this range, the ideal size recommended by Rockford Fosgate is 2.0 cu/ft, so this is the enclosure recommended by Crutchfield. One 4" diameter x 10-3/4" long port, tuned at 35Hz, should be used with a 2.0 cu/ft enclosure.

Power Handling: The woofer has two 2 ohm voice coils, and each coil can handle up to 500 watts RMS (1000 watts peak).