Description
Alpine XA90M - X-Series Mono Amplifier
Alpine introduces the all-new X-Series of high-grade speakers and amplifiers (Alpine XA90M). These products have been engineered and tuned to create a perfect match for extraordinarily dynamic, realistic sound reproduction and a spatial sound impression.
The all-new X-Series amplifiers set a new standard for sound quality performance and power output in a very compact design. Available in mono, four channel and five channel configuration, these amps are a perfect match for the all-new X-Series speakers and subwoofers.
HIGH PERFORMANCE WHILE RETAINING CLASS-LEADING POWER DENSITY
X-Series amplifiers are built on a new Alpine-proprietary circuit design that achieves class-leading power density and reliability while performing at the top of its class. By simplifying the circuit topology, Alpine is able to ensure the cleanest possible signal path. While the simplicity of the circuit contributes to a great sounding signal, we added an exclusive dual feedback loop that corrects signal distortion. This clever design results in a frequency response that not only meets the Hi-Res audio standard of 40kHz but even extends up to 60kHz. The amp maintains a very low phase shift throughout the music spectrum, which allows your music stay faithful to the original recording with realism that puts you in the centre of the performance.
Compact and Powerful: the new digital amplification circuit allows very high power output while keeping a small footprint.
The new X-Series amps are designed for true Hi-Res Audio playback, featuring ultra-low distortion and a wide frequency range.
At the core of the X-Series Amplifier’s chassis is a solid cast aluminium heat sink, which keeps the amplifier cool when performing at its peak power levels. Excess heat is removed from the amplifier through the newly designed heat sink profile, which both improves airflow and increases surface cooling area. The fan-less channels located on both sides of the amp allow for convection flow of air; hot air naturally rises out from the top of the amplifier, which causes a vacuum that sucks in cool air from below. This smart design allows for continuous thermal control for an uninterrupted listening experience.
We fully redesigned the speaker and power supply terminal connectors: the very compact design allows clean and simple installation with lossless connectivity. Includes High Level Input with automatic power on.
You can connect the RUX-KNOB2 remote bass knob (optional available) to the XA90M to control the subwoofer level straight from your dash (applicable for channel 3+4 in bridged mode for subwoofer usage).
Remove the aluminium top cover plate to reveal the amplifiers control panel. It allows easy access of all adjustments while the amplifier is installed.
Install
- Terminal Layout: One side
- Screw Mount / Wire Cover: Plug Type Connector (PWR and SPK Terminal)
- Mounting Design: Easy Stacking and Smart Installation
General
- Amplifier Type: Class-D (Digital)
- Channel Design: Mono
- Thermal Control: Thermal Management Control
- Power Supply: PWM regulated Interleaved flyback with active clamp
- Board Circuitry: S.T.A.R. Circuitry
- Power Indicator: Top Mounted LED Power/Status Indicator
- Speaker Level Input with remote turn on
- Crossover: Adjustable Low-pass Filter (LPF)
- Built-in Bass EQ
- Subsonic Filter: Variable Subsonic Filter
- Gain Control: Adjustable
- Bass Control: Remote Bass Control (RUX-KNOB2) Ready
Max Power Output Ratings
- Total Max Power: 1800W
RMS Power Ratings
- Per Channel into 4ohms, 14.4V (≤1%THD+N): 600W
- Per Channel into 2ohms, 14.4V (≤1%THD+N): 900W
Sound Tuning
- Subsonic Filter (Subwoofer): 8-40 Hz (-24dB/oct)
- Crossover Frequency (LPF): 50-400 Hz (-24dB/oct)
- Equalizer (Bass EQ): 0-12dB (Fc 50Hz, Q Factor 1.3)
General
- Power Requirements: 14.4 V.DC (9 – 16 V allowable)
- Input Sensitivity (RCA Input): Hi: 0.4 – 10 V Lo: 0.1 – 4.0 V
- High Level Input with automatic power on
- Cable size: Power Cable 4AWG (20mm2), SPK Cable 8AWG (8mm2)
- Frequency Response (+0, -3dB: 1W into 4 ohms): 8-400Hz
- THD+N (10W into 4 ohms): <0.02%
- THD+N (600W into 4 ohms): <0.07%
- Damping Factor: >1500
- Signal to Noise (Rated Power into 4 ohms): >107dB
- Weight: 3.2 kg
Dimensions
- Heat Sink (WxHxD) mm: 297 x 51 x 192
This super-wide, industry leading frequency range offers listeners unparallel sound quality and detail that bests even the most high-end audiophile equipment. 5Hz-100kHz for 4ch, 5Hz-400Hz for Mono (+0,-3dB)
The all-new PDX series amplifiers are not your typical class-D amplifiers. Traditionally, class-D amplifiers have not been known for high frequency reproduction. These new PDX amplifiers are the first ever class-D amplifiers to break tradition and trump the amps of yesterday. The 
The PDX power supply delivers tremendous headroom with low distortion and noise. PDX amplifiers have an extremely high total system efficiency of ~80% (power supply is rated at >90%, output stage is rated >90%).
PDX amps incorporate Alpine’s new Power Management circuit. The Power Management Processor controls all aspects of amplifier performance, monitoring voltage, temperature and output to ensure uninterrupted power output for non-stop listening. If the amp gets too hot, the Thermal Protection circuit kicks in and gradually decreases output power until it cools down. Once cool, the power output automatically increases back to the previous level. If the circuit detects a Low Battery condition, it will gradually decrease power output if battery voltage becomes too low. Once the battery voltage increases, power will be restored. This interruption-free design allows for non-stop enjoyment with no hiccups or drop-outs, just clean, clear output.
Each PDX amplifier comes with its very own birth-sheet. PDX amplifiers are tested and documented to show their true actual output.
The new PDX series amplifiers are 20% thinner than previous models at only 2″ thick. New stacking system packs the amps closer together so there are no gaps and to save space in the trunk while directly coupling the amps heatsinks to help share cooling duties.
The super high power speaker connectors allow for up to 10 mm² wiring and have a unique quick disconnect design for simple error-free installation.
The new removable connector features a low-loss, high-current design. It accepts up to 25 mm² wire, to ensure your amp gets the power it needs while allowing for easy installation.
Simply add the 
PDX amplifiers come with easy-to-remove trim rings, so if you would like to customize them, you can have them painted. Add it as another Do-It-Yourself project, or leave it to professionals and ask an Authorized Alpine installer near you. The removable trim ring can be custom painted to match your vehicle or personalized to anything you want.
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