5-Channel Design: The Rockford Fosgate P1000X5 is made up of
three sections, two full range stereo amps (front and rear) and a mono subwoofer
amp. The full range amps are Class-AB and the subwoofer amp is Class-bd, a
patented, more efficient design. The front and rear amps are independently
bridgeable, meaning the P1000X5 can be used as a 5-channel, 4-channel, or
3-channel amp. The minimum impedance for the full range amps is 2Ω (4Ω
when bridged) and the minimum subwoofer amp impedance is 1Ω.
CEA-2006 Compliant: CEA-2006 is a system of testing and
measurement methods for mobile audio amplifiers. This voluntary standard
advocates a uniform method for measuring an amplifier's RMS power output
and signal-to-noise ratio. The criteria for measuring power uses a DC input
voltage of 14.4 volts and the RMS power output is measured with 1% or less
Total Harmonic Distortion plus noise (THD+N) over a frequency range of 20 Hz
to 20 kHz (for full range amplifiers). Signal-to-Noise ratio is measured in
weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006
allows consumers to compare car amplifiers and receivers on an equal basis. Using
CEA-2006 criteria, the P1000X5 is rated as follows:
- Power Output:
- Full Range:
- 4Ω: 75 watts x 4-channels
- 2Ω: 125 watts x 4-channels
- Bridged: 250 watts x 2-channel (into 4Ω)
- 4Ω: 150 watts x 1-channel
- 2Ω: 300 watts x 1-channel
- 1Ω: 500 watts x 1-channel
- Signal to Noise Ratio: 85 dBA (105 dB at rated power)
- Full Range: 85 dBA (105 dB at rated power)
- Subwoofer: 80 dBA (100 dB at rated power)
Aluminum Heatsink: The cast aluminum heatsink dissipates heat generated
by the amplifier's circuitry. The inherent advantage of casting provides a 30%
cooling improvement over conventional extrusion heatsink designs.
Dynamic Thermal Management (DTM): DTM evenly distributes
excess heat across the amplifier's entire heatsink.
MEHSA³ (Maximum Efficiency Heat Sink Application-3rd Generation):
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.
Trans-ANA (TRANSconductance Active Nodal Amplifier): Trans-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 amplifier is protected without
limiting sound output unless needed.
DSM (Discrete Surface Mount): High speed robotics are used in
the manufacturing process to place 1% tolerance parts and large board traces. DSM
improves the efficiency of the circuit, decreases cross-talk from other discrete
components and lowers operating temperature.
CLEAN Set-Up: Rockford's integrated level setting technology,
CLEAN (Calibrated Level Eliminates Audible Noise), replaces sophisticated test
equipment with input/output clip LEDs, allowing you to match the source unit's
output to the amp's gain, and optimize the amp's output. The input clip indicator
works in conjunction with the audio source volume, illuminating red when the source
reaches it's clipping point. The output clip indicator works in conjunction with
the input level dial on the amp, illuminating the appropriate color depending on
the audio content used for the setup.
Power and Protection LEDs: The LEDs are located on top of
the amplifier. A blue Power LED illuminates when the amplifier is turned on. A
red Thermal LED illuminates if the amplifier overheats. The yellow Protect LED
illuminates if a short circuit or too low an impedance is detected at the speaker
connections. When any of the protection circuits engage, the amp automatically
shuts down until the problem is corrected.
Balanced Differential Inputs: Differential inputs eliminate
noise picked up by signal cables by measuring the voltage of both the (+) and (-)
input signal, then subtracting the voltage common to both conductors (noise),
resulting in only the clean signal entering the amplifier.
Infrasonic Filter: The subwoofer section's infrasonic filter
is fixed at 28 Hz with a slope of 12dB/octave. This high-pass filter is designed
to prevent frequencies below the audio range from being applied to the subwoofer,
or reproduced by the amplifier. This improves your subwoofer performance and power
handling, particularly in vented enclosures.
Input Level: The front, rear, and subwoofer sections of the
amplifier have separate input level controls. To accommodate the varying range
of signal levels from today's factory and aftermarket radios, the input levels
are adjustable from 150mV to 12V.
Crossover: The amplifier's internal crossovers are also
independent for the front, rear, and subwoofer channels. The slope of all three
is 12 dB/octave and the crossover points are variable from 50 Hz to 250 Hz. The
full range sections can be set to high-pass, all-pass (full range), or low-pass
operation. The low-pass crossover in the subwoofer section cannot be bypassed.
Punch EQ: Each amplifier section has its own Punch EQ circuit.
In the full range amps, the EQ function changes with the crossover switch. When
the crossover is set to low-pass, the Punch EQ acts as a variable bass boost; 0-18
dB at 45 Hz. When the crossover is set to high-pass, the Punch EQ acts as a variable
treble boost, 0-14 dB at 12.5 kHz. When the crossover is set to all-pass, both the
bass and treble boost circuits are active. The subwoofer amp has only the bass
boost; 0-18 dB at 45 Hz.
Input Switch: With the input switch in the 2-channel position,
connecting only the front inputs will send the signal to both the front and rear
sections of the amplifier. In the 4-channel position, both front and rear inputs
must be used.
Sub Input: If the source unit has a dedicated subwoofer
output, set this switch to On to activate the amplifier's sub input.
Remote Punch Level: When activated, this switch allows the
use of a optional remote Punch Level Controller (PLC2).
Infrasonic Filter: A switch allows you to turn the infrasonic
filter off if you prefer.
Power Connections: The power and ground terminals are nickel-plated
captive c-clamp wire connectors and will accommodate up to 4-gauge wire. An external
150-amp fuse (not included) must be installed on the power wire. The remote turn-on
terminal will accept up to 12-gauge wire. A Phillips or flat-head screwdriver (not
supplied) is required to tighten/loosen the terminals.
Speaker Connections: The six pair of speaker output terminals
(front left and right, rear left and right, and two subwoofer outputs) are also
nickel-plated captive c-clamps and will accept up to 8-gauge wire. The two subwoofer
outputs are internally wired in parallel, making it easy to connect two subs. A
Phillips or flat-head screwdriver (not supplied) is required to tighten/loosen
Signal Input: The front, rear, and subwoofer RCA inputs will
accept either a line-level or speaker-level input. A speaker-level signal can be
connected using a Speaker Wire to RCA adapter (sold separately). When using a
speaker-level input signal, the auto turn-on feature is active and the remote
turn-on terminal becomes a 12 volt output to turn on/off up to two additional
amplifiers or other components.
Punch Level Control (PLC): An RJ-45 jack is
provided for connecting an optional wired remote PLC2 (item number
575PLC2, sold separately), allowing remote control of the output level of the
subwoofer amplifier. A second RJ-45 jack is the PLC output, used to daisy-chain
additional amplifiers controlled by a single remote.
Note: Previous model PEQ, Punch Bass,
and Para-Punch remotes will not work with this amp.