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Focal FPX 4.800 Performance Series 4-channel car amplifier — 120 watts RMS x 4

Item # 091FPX4800

Focal's FPX 4.800 amplifier delivers 120 watts RMS per channel in 4-channel mode, or up to 370 watts RMS per...

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Focal's FPX 4.800 amplifier delivers 120 watts RMS per channel in 4-channel mode, or up to 370 watts RMS per...

6 questions - 7 answers

Item # 091FPX4800

In stock
$699.99

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About the Focal FPX 4.800

Buck Pomerantz

Power-packed

Focal's FPX 4.800 amplifier delivers 120 watts RMS per channel in 4-channel mode, or up to 370 watts RMS per channel when it's bridged to 2-channel operation. This impressive power comes from a compact chassis that's a little smaller than one of my Size 10 bedroom slippers, so it'll probably fit just about anywhere in your vehicle. Focal's engineers designed this amp to reproduce your music with unerring precision, so it'll pair up nicely with high-performance components or subs.

Power-packed

Focal's FPX 4.800 amplifier delivers 120 watts RMS per channel in 4-channel mode, or up to 370 watts RMS per channel when it's bridged to 2-channel operation. This impressive power comes from a compact chassis that's a little smaller than one of my Size 10 bedroom slippers, so it'll probably fit just about anywhere in your vehicle. Focal's engineers designed this amp to reproduce your music with unerring precision, so it'll pair up nicely with high-performance components or subs.

Tone controls for a variety of applications

Separate high- and low-pass filters on the front and rear channels let you optimize the signal for the best tone without distortion. When powering a sub with the rear channels, the variable bass boost adds as much punch as needed.

Focal FPX 4.800

Focal FPX 4.800 input and control panel

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Product highlights:

  • 4-channel car amplifier
  • 120 watts RMS x 4 at 4 ohms (185 watts RMS x 4 at 2 ohms)
  • 370 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • full-range Class-D amplifier design
  • separate variable high- and low-pass filters (50-500 Hz, 12 dB/octave) for front and rear channels
  • variable bass boost (0-12 dB at 53 Hz) on rear channels
  • preamp inputs
  • frequency response: 10-20,000 Hz
  • fuse rating: 30A x 2
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 9-3/8"W x 2-1/8"H x 5-1/4"D
  • warranty: 1 year
  • MFR # FPX 4.800

What's in the box:

  • 4-Channel amplifier
  • Four 30-amp ATM fuses (2 installed/2 spare)
  • 2mm Allen wrench
  • 4mm Allen wrench
  • Four M4 x 65mm Allen-head screws
  • User Manual

Customer reviews for Focal FPX 4.800

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Product Research

Features
Controls
Connections
Specifications

Features

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 into a 4Ω load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and 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 standards allow consumers to compare amplifiers on an equal basis.

Amp Overview: The Focal FPX 4.800 is a full-range Class D 4-channel amplifier. Class D amplifiers are compact, but very powerful. Its Class D design and thick aluminum chassis (3/8" on top, 11/16" on the sides) offer efficient dissipation of heat for reliable performance. The amp can be configured for four-channel, three-channel, or two-channel operation. With independent crossovers for the front and rear channels, you can configure the amplifier for low-pass, high-pass, or full-range applications.

Power Output: The amplifier has the following power output:

  • 120 watts RMS x 4 at 4 ohms
  • 185 watts RMS x 4 at 2 ohms
  • 370 watts RMS x 2 at 4 ohms bridged

Compact Footprint: The Focal FPX 4.800 comes with 2-1/2" long mounting screws that secure the amplifier without external mounting tabs. The mounting holes are placed inside of the amp's 9-3/8" x 5-1/4" footprint and extend the entire thickness of the amp.

Protection Circuits: The amplifier is equipped with protection circuits for the following: short circuits, low impedance, power drop, thermal overload, reversed polarity, or DC offset.

Controls

Level Control (Gain): The Focal FPX 4.800 is equipped with line level inputs. The input level range is 0.2 Volts to 5.0 Volts. There are rotary input level controls for the front (1+2), and rear (3+4) channels that can be adjusted by a standard flat-head or Phillips screwdriver (not supplied).

Input Modes: There is a 2-way switch labeled "Mode" that designates the source for the inputs:

  • 2CH: Inputs 1+2 are used, and the signal is mirrored to channels 3+4. This allows you to drive all four channels with one pair of inputs.
  • 4CH: Inputs 1+2 and 3+4 are used. This gives you full fading capability between the front and rear.

Selectable Crossovers: The amp features high-quality crossovers that can be configured as Low pass, High pass, or Full-range. There are independent crossover controls for the front and rear channels:

  • Channels 1+2: The crossover for channels 1+2 has a variable cutoff frequency from 50Hz to 500Hz, with a slope of 12dB per octave.
  • Channels 3+4: The crossover for channels 3+4 has a variable cutoff frequency from 50Hz to 500Hz, with a slope of 12dB per octave. There is also a bass boost circuit on the rear channels that is variable from 0 to 12dB at 53 Hz.
Connections

Power Input: Two set-screw terminals are provided for connecting the power and ground cables. The terminals can accept up to 4-gauge wire. The set screws are tightened/loosened with the included 4mm Allen wrench.

Fuses: The amp comes with four 30-amp ATM (mini-blade) fuses; two are installed internally, and the others are replacements. The bottom panel is removed to replace the fuses. A 60-amp fuse (minimum) should be installed on the power wire within 18" of the battery.

Remote Turn-on: The remote turn-on set screw terminal will accept up to 12-gauge wire. The set screw is tightened/loosened with the included 2mm Allen wrench.

Speaker Outputs: The amplifier includes four pairs of speaker output terminals. Markings are provided for bridged connections. The set-screw terminals will accept up to 12-gauge wire and are tightened/loosened with the included 2mm Allen wrench.

Signal Input: The amplifier features two pairs of stereo RCA inputs for connecting the input signal from the source unit to the amp via RCA cables.

Specifications
  • Frequency Response: 10Hz - 20kHz
  • Total Harmonic Distortion: 0.01%
  • Signal-to-Noise Ratio: >76dBA
  • Crosstalk (1 kHz): >55dB
  • Standby Current: 1.1A
  • Dimensions:
    • Width: 9.357"
    • Height: 2.079"
    • Depth: 5.216"
  • Weight: 4.4 pounds

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Customer Q&A

6 questions already asked

Q
Hello. I am planning to install my car 2 Focal PS 165 SF and 2 Focal PC 165 SF, with a 1 Focal Sub 10" Focal E 25 KX, but I need help choosing the right car stereo and the right Focal amplifier that I can install, could you please help me to check what could be the best option ?
arnold  Dec 21, 2022
1 answer
A
Greetings Arnold, and thank you for your question. We reserve product recommendation questions for our advisor group. Please call 800-324-9695 and speak to one of our product advisors.
hogan  Dec 22, 2022 (Staff)
Q
What is the maximum wire size (awg) the terminals will accept on the power input and speaker outputs?
wesseat  Jul 08, 2022
1 answer
A
Though not specifically listen in Focal's specs Wes, the power and ground terminals can't accept more than 4 gauge wire. For the speaker terminals the maximum would be 12 gauge, a very tight fit. I hope this helps!
bo  Jul 08, 2022 (Staff)
Q
Is 120w rms too much power for my 4x 80w rms focal fx & f3e flax speakers? I want to match them with the beat focal amp possible and i think its this as the 5.1200 has only 75w x 4?
vichingo  Aug 31, 2021
2 answers
A
Enter an answer to this question.Good afternoon. I myself own the Focal FPX 4.800 and this amp is one of the best amps i have seen and used up to date, it has more then sufficient power for 4x80w RMS speakers, I would also recommend a DSP the DSP will handle the sound quality and also help out with the volume, just set your amp volume properly and don't max out the volume on your amp, this is 800 watts and it will blow out your speakers if you max out the volume, this is why you need a proper DSP and a good receiver just set the amp to a proper volume and use the receiver for the volume control and you will be set, The Focal !200 is great amp as well but you wont get the extra push you might want down the line, the 1200 is set for 5 speakers system that incudes the Bass speaker, this is why you receive a little less RMS per channel with the 1200, i would stick with the 800 and just set the volume to where you know it will not push your speakers to hard and just give enough power to support the speakers you are using. I rate Focal top of the line along with Harman Kardon- Rockford - JL audio- and Sound Digital Evo-X, all great amps. I hope this was helpful, good luck with your project.
wilson  Sep 01, 2021
A
We do not recommend matching speakers with an amp that outputs more than the top RMS watts they can handle and do not recommend using this amp to power speakers that handle up to 80 watts RMS. We have advisors that can be reached by calling 1-800-324-9695 who can check current models and give a personal recommendation on an amp to use with your speakers
jason  Sep 01, 2021 (Staff)
Q
How is this compared to the Alpine PDX V9? Slightly more concerned about the S/N ratio! I'll be running a pair of Focal coaxials plus two Rockford 10" subs.
nikhil  Aug 15, 2018
1 answer
A
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.
kristina  Aug 17, 2018 (Staff)
Q
How is this compared to the Alpine PDX V9? More concerned about the S/N ratio.
nikhil  Aug 14, 2018
2 answers
A
I personally like it better than the alpine
michelle  Mar 01, 2021
A
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.
kristina  Aug 17, 2018 (Staff)
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