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Focal FPD 900.1

Compact mono amplifier — 850 watts RMS x 1 at 2 ohms

Item # 091FPD9001

The incredible efficiency of the FPD 900.1 proves why Focal is considered a world-leader in audio technology.

The incredible efficiency of the FPD 900.1 proves why Focal is considered a world-leader in audio technology.

JC
Need help?
Contact our Virginia-based experts.
Discontinued item

Item # 091FPD9001

JC
Need help?
Contact our Virginia-based experts.

About the Focal FPD 900.1

Silver is the new green

The incredible efficiency of the FPD 900.1 proves why Focal is considered a world-leader in audio technology. This unobtrusive mono amplifier will give your system a clean, powerful boost while keeping the current draw low, making it a wise choice for pure electric cars and for micros like Smart Car.
front-panel control

Silver is the new green

The incredible efficiency of the FPD 900.1 proves why Focal is considered a world-leader in audio technology. This unobtrusive mono amplifier will give your system a clean, powerful boost while keeping the current draw low, making it a wise choice for pure electric cars and for micros like Smart Car.

Power where you need it

This FPD 900.1 amplifier packs a wallop when it comes to bass, driving your sub with up to 850 watts RMS. The amp's adjustable gain, full range capability, bass boost and phase adjustment give you the freedom to get creative with sound optimization. Focal also includes a wired remote for adjusting the sub's level from the front seat — a handy feature if you're listening to different genres on shuffle.

When size matters

The amp's compact aluminum chassis disperses heat with incredible efficiency, so you can mount it in tighter quarters than usually recommended for the average amp. It's not much bigger than a standard text book, so its stashability factor is high, making it a convenient choice if space is an issue. And if you're keeping your factory radio, the amp automatically detects and converts the high-level signals from your speaker wires.

Confused about impedance? Check out our article on matching subs and amps.

READ LESS

Highlights:

  • Mono subwoofer amplifier
  • 500 watts RMS x 1 at 4 ohms (850 watts RMS x 1 at 2 ohms)
  • 1-ohm stable — 500 watts RMS x 1 at 1 ohm
  • CEA-2006 compliant
  • Class D amp technology
  • high-pass crossover: 10-4,000 Hz; low-pass crossover: 40-350 Hz; and subsonic filter: 10-4,000 Hz (24 dB/oct.)
  • heat dispersing aluminum chassis
  • high-level input with auto-detection & auto turn-on; RCA low-level input
  • remote sub control
  • frequency response: 20-20,000 Hz
  • adjustable bass boost level: 0 to +6dB @ 40 Hz
  • phase adjustment: variable (0-180°)
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • fuse rating: 25A x 2
  • dimensions: 9-1/2"W x 2"H x 8-7/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # FPD 900.1

What's in the box:

  • Mono full range amplifier
  • Two 25 amp ATO fuses (installed)
  • Wired remote control
  • 15' Remote control cable (RJ-25 plug on both ends)
  • Four 5/8" Self-tapping screws
  • Two 1/2" Self-tapping screws
  • Four Allen-head machine screws
  • 2 Mounting brackets
  • 3mm Allen wrench
  • 2.5mm Allen wrench
  • 1.5m Allen wrench
  • User manual website information

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Features
Controls
Connections

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.

Speaker Level Inputs: The RCA inputs will accept either speaker-level or line level signals from your car's head unit. A speaker level signal is connected to the RCA inputs using a speaker wire to RCA adapter (sold separately).

Auto Turn-on: When using a speaker level input, the amp will turn on automatically when it senses the input signal.

Multiple Amplifiers: Two identical FPD 900.1 amplifiers can be strapped together to double the power to a single subwoofer (1700 watts RMS into a 4Ω load, 1000 watts RMS into a 2Ω load). When used in this configuration one amp is the master and controls gain, crossover point, subsonic filter, and bass boost. Similarly, multiple identical amplifiers can be cascaded together, with each powering its own speaker(s) and the master amp providing all the controls.

Controls

Front-mounted Controls: The amplifier controls are mounted on the front panel.

Level Control (Gain): The input level range is 0.2 Volts to 8.0 Volts.

Crossover: The amp has both high pass and low pass filters built-in; they can be combined to create a band pass crossover. The two position crossover switch is set to HP or LP:

  • HP: the high pass crossover is always engaged; when the crossover switch is set to HP, only the high pass is engaged; because the high pass crossover is always engaged, it acts as a subsonic filter; when the crossover switch is set to HP and the frequency is set to 10 Hz, the amp is effectively running full range:
    • Frequency Multiplier: changes the range of the frequency dial; select x1 (range as labeled on frequency dial) or x10
    • High Pass Frequency Dial: sets the high pass crossover point; 10-400 Hz (with multiplier switch in x1 position) or 100 Hz-4 kHz (with multiplier switch in x10 position)
  • LP: when the crossover switch is set to LP, both the low pass and high pass filters are engaged; if the high pass frequency is set to the low end of the dial (10-30 Hz), it becomes a subsonic filter for a subwoofer, and the low pass crossover point is set using the LP frequency dial; when powering a mid bass driver, both frequency dials are set higher:
    • Low Pass Frequency Dial: sets the low pass crossover point; 40-350 Hz

Bass Boost: The bass boost, centered at 40 Hz, is variable between 0 dB and +6 dB, using this rotary control.

Phase: The output phase is variable between 0° and 180°.

Direct/Master: set The Direct/Master switch is typically left in the Master position. When multiple FPD 900.1s are bridged or cascaded together, one will be set to Master, the others to Direct.

Wired Remote: A wired remote level control is included. The remote has integrated flanges and screws are included to mount the unit under the dash. It includes a 15' cable to connect to the amplifier.

Note: The wired remote measures approximately 1-5/8" wide (2-5/8" including the mounting flanges) x 3/4" tall x 1-1/2" deep (2-1/8" including the knob and cable).

Connections

Front-mounted Terminals: All the connections are on the front of the amplifier for a clean installation.

Power Input: Two set-screw terminals are provided for connecting the power and ground cables. The terminals can accept up to 6-gauge wire (an 8-gauge wiring kit is sufficient for the 50-amp rating of the built-in fuses). The set screws are tightened/loosened with the included 3mm Allen wrench.

Remote Turn-on: The remote turn-on set screw terminal will accept up to 14-gauge wire. The set screw is tightened/loosened with the included 1.5mm Allen wrench.

Speaker Outputs: There are two pair of speaker outputs internally wired in parallel, so two subwoofers can easily be connected. The set-screw terminals will accept up to 14-gauge wire and are tightened/loosened with the included 1.5mm Allen wrench.

Signal Input: The amplifier features a pair of stereo RCA inputs. Because it's a one channel amp, if a stereo input is used, it is summed to mono, then amplified. If no line level signal is available, you will need a speaker wire to RCA adaptor (sold separately) to connect the amplifier to the source unit via speaker wires.

Line Output: There are two RCA output jacks, used when bridging two, or cascading multiple FPD 900.1s together; they are not standard stereo RCA outputs.

Remote Control: The RJ-25 jack is for connecting the supplied remote control.

Fuses: The amp has two internal 25-amp ATO fuses. The bottom panel must be removed to access the fuses.

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