Item(s) for Sale: Rockford Fosgate P450.4
450 Watt 4-Channel Amplifier
Item(s) Description/Condition: Used but in good working shape
Price: $100 shipped USA
Shipping and Miscellaneous Item Information:
Shipping is included in price, USPS or UPS. Amp is installed in my truck right now. My new amp is arriving today according to UPS tracking. As soon as sold and payment clears, i will get it packed and shipped out.
Performance
RMS Power Output (Watts x Channels) 60 x 4
Peak Power Output (Watts x Channels) N/A
Power at 2 Ohms (Watts x Channels) 110 x 4
Bridged Power (Watts x Channels) 225 x 2
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2
Best Frequency Response 20-200k Hz
THD at Rated RMS Power 0.05%
Signal to Noise Ratio 80 dB
Input Voltage 14.4v
Features
Amplifier Class AB
Low-Pass Crossover Frequency 40-400 Hz
Low-Pass Slope (dB/octave) 12 dB
High-Pass Crossover Frequency 40-400 Hz
High-Pass Slope (dB/octave) 12 dB
Bass Boost 0-18 dB
Bass Boost Frequency 45 Hz
Fan Cooled No
Fuse Rating 30 x 2
Speaker Level Inputs No
Preamp Outputs 1 pair
LED Power Indicator Yes
Width (inches) 16-1/2
Height (inches) 2-1/16
Depth (inches) 11-1/8
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.
INDIGO (INDexed Ideal Gain Operation): The INDIGO PWM (pulse width modulation) power supply is designed to make the most of the situation it is presented with. When battery voltage is low, you are guaranteed to get the power you paid for. When voltage increases, the amp makes even more power.
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.
*****-ANA (TRANSconductance Active Nodal Amplifier): *****-ANA is a circuit that allows the audio signal to pass through the amplifier at low voltage. The signal is directly level-shifted to the fixed high voltage rails via a pair of drive transistors. Signal linearity is assured by an active node formed by the drive transistors at ultrasonic frequencies. The result is crystal clear sound quality.
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.
TO-247 MOSFET: The Punch P450.4 utilizes ultra high performance MOSFET output devices, giving the amplifier more power handling capability as well as lower thermal impedance for more reliable operation, even under the harshest load conditions.
2/4-Channel Switch: The P450.4 can be switched from a 4-channel mode to a 2-channel mode by pressing in the 2/4-channel switch. When operating in the 2-channel mode, the amplifier produces 4-channels of output with connections to only the front channel inputs.
Internal Crossovers: The amplifier's internal front and rear crossovers are 12dB/octave Butterworth filters, independently selectable for high-pass, all-pass (full range), or low-pass operation. Each crossover is variable from 40Hz to 400Hz.
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 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. The module's case can be configured with the bracket above or below the module, or, without the case, mounted flush in your vehicle's dash (requires a 2" x 7/8" cutout with a maximum thickness of 3/8"). The wired remote is 2.292" wide, 1.194" tall and 1.502" deep (2.433" including the knob and cable connection). The included cable is 16.25' 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.
Power and Protection LEDs: A yellow "Protect" LED, located on top of the amplifier, illuminates if a short circuit or too low of an impedance is detected at the speaker connections. A red "Thermal" LED illuminates if the amplifier overheats. A blue "Power" LED illuminates when the amplifier is turned on.
Inputs and Outputs Notes
Power Connections: The power and ground terminals are nickel-plated captive c-clamp wire connectors and will accommodate up to 4-gauge wire. The remote turn-on terminal will accept wire sizes of 12- to 24-gauge. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.
Speaker Connections: The 4-channel nickel-plated clamp wire connectors will accept wire sizes of 8- to 18-gauge. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.
Item Pictures:
(List pictures in this section, 1st picture should be your username/date if you have less than 10 positive feedbacks with the i-Trader system or less than 10 references that you have sold to in the past. (These must be listed in your signature, or a link provided to a feedback thread listing these references)).
450 Watt 4-Channel Amplifier
Item(s) Description/Condition: Used but in good working shape
Price: $100 shipped USA
Shipping and Miscellaneous Item Information:
Shipping is included in price, USPS or UPS. Amp is installed in my truck right now. My new amp is arriving today according to UPS tracking. As soon as sold and payment clears, i will get it packed and shipped out.
Performance
RMS Power Output (Watts x Channels) 60 x 4
Peak Power Output (Watts x Channels) N/A
Power at 2 Ohms (Watts x Channels) 110 x 4
Bridged Power (Watts x Channels) 225 x 2
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2
Best Frequency Response 20-200k Hz
THD at Rated RMS Power 0.05%
Signal to Noise Ratio 80 dB
Input Voltage 14.4v
Features
Amplifier Class AB
Low-Pass Crossover Frequency 40-400 Hz
Low-Pass Slope (dB/octave) 12 dB
High-Pass Crossover Frequency 40-400 Hz
High-Pass Slope (dB/octave) 12 dB
Bass Boost 0-18 dB
Bass Boost Frequency 45 Hz
Fan Cooled No
Fuse Rating 30 x 2
Speaker Level Inputs No
Preamp Outputs 1 pair
LED Power Indicator Yes
Width (inches) 16-1/2
Height (inches) 2-1/16
Depth (inches) 11-1/8
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.
INDIGO (INDexed Ideal Gain Operation): The INDIGO PWM (pulse width modulation) power supply is designed to make the most of the situation it is presented with. When battery voltage is low, you are guaranteed to get the power you paid for. When voltage increases, the amp makes even more power.
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.
*****-ANA (TRANSconductance Active Nodal Amplifier): *****-ANA is a circuit that allows the audio signal to pass through the amplifier at low voltage. The signal is directly level-shifted to the fixed high voltage rails via a pair of drive transistors. Signal linearity is assured by an active node formed by the drive transistors at ultrasonic frequencies. The result is crystal clear sound quality.
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.
TO-247 MOSFET: The Punch P450.4 utilizes ultra high performance MOSFET output devices, giving the amplifier more power handling capability as well as lower thermal impedance for more reliable operation, even under the harshest load conditions.
2/4-Channel Switch: The P450.4 can be switched from a 4-channel mode to a 2-channel mode by pressing in the 2/4-channel switch. When operating in the 2-channel mode, the amplifier produces 4-channels of output with connections to only the front channel inputs.
Internal Crossovers: The amplifier's internal front and rear crossovers are 12dB/octave Butterworth filters, independently selectable for high-pass, all-pass (full range), or low-pass operation. Each crossover is variable from 40Hz to 400Hz.
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 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. The module's case can be configured with the bracket above or below the module, or, without the case, mounted flush in your vehicle's dash (requires a 2" x 7/8" cutout with a maximum thickness of 3/8"). The wired remote is 2.292" wide, 1.194" tall and 1.502" deep (2.433" including the knob and cable connection). The included cable is 16.25' 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.
Power and Protection LEDs: A yellow "Protect" LED, located on top of the amplifier, illuminates if a short circuit or too low of an impedance is detected at the speaker connections. A red "Thermal" LED illuminates if the amplifier overheats. A blue "Power" LED illuminates when the amplifier is turned on.
Inputs and Outputs Notes
Power Connections: The power and ground terminals are nickel-plated captive c-clamp wire connectors and will accommodate up to 4-gauge wire. The remote turn-on terminal will accept wire sizes of 12- to 24-gauge. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.
Speaker Connections: The 4-channel nickel-plated clamp wire connectors will accept wire sizes of 8- to 18-gauge. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.
Item Pictures:
(List pictures in this section, 1st picture should be your username/date if you have less than 10 positive feedbacks with the i-Trader system or less than 10 references that you have sold to in the past. (These must be listed in your signature, or a link provided to a feedback thread listing these references)).
