Alpine X-A90M Mono Block



Why Pay $699.00

Out of stock


Built-in Variable High/Low Pass Filter
Variable Subsonic Filter (Mono Channel)
Bass EQ
Aluminium Heat Sink
All-new SIERRA Digital Design
Remote Sensing
Remote Level Control with Optional RUX-KNOB or RUX-KNOB.2
RCA Speaker Connection (Optional KCE-SP2R)


RMS Continuous Power (at 14.4 V)
900W RMS x 1 [2Ω@14.4V]
600W RMS x 1 [4Ω@14.4V]
THD+N (Reference: 10W / rated power into 4 ohms): 0.02%

S/N Ratio: (IHF A Weighted, Reference: rated power into 4 ohms): >107 dBA
S/N Ratio: (IHF A Weighted, Reference: 1 W into 4 ohms): >83 dBA
Input Impedance: 10k ohms
Frequency Response (Reference: 1 W into 4 ohms):  8Hz – 400 kHz
Damping Factor (Reference: 10 W into 4 ohms at 100Hz): >1,500
Preamp Output: 4V Max
Width: 297.0 mm
Height: 50.8 mm
Depth: 192.0 mm
Weight: 3.2 kg

The X-Series amplifiers set the industry benchmark with an all-new and advanced digital architecture to achieve true high-definition sound with unprecedented purity, accuracy and power efficiency. Their sleek and stylish compact design incorporates an innovative aluminium heat sink with a bespoke air-flow system which keeps the amplifier cool and maintains performance at its peak for incredibly high level power output and no-shut down operation. The X-Series amps are designed for Hi-Res Audio playback by featuring an extended frequency range from 10Hz ~ 60kHz in the full range amplifiers.
Furthermore, X-Series have unmatched staying power with a high damping factor for unparalleled control coupled with virtually zero distortion. This ensures extremely accurate low frequency output for bass at its best and the highest sound quality. The X-Series amplifiers allow your music to stay faithful to the original recording with realism that puts you in the centre of the performance.


What is Hi-Res Audio?
You can now appreciate a higher sampling rate than in CD’s for the encoding and playback of music, it brings your favourite tracks to life with extreme clarity. Alpine’s painstaking engineering has delivered faithful audio reproduction from high resolution sound sources and recordings at 96kHz/24Bit or greater, they are optimised for high definition playback and breathtaking performance.
Why Hi-Res Audio?
Listening to Hi Resolution Audio allows you to feel every emotion and hear every nuance; every detail of your favourite artist’s original studio performance is reproduced to perfection. Hi-Res Audio provides absolutely no distortion for the ultimate listening experience.

Extended Dynamic Range for Hi-Resolution Audio
The X-Series full-range amplifiers are Hi-Res Audio certified and engineered to operate in an extended dynamic frequency range. With their super high-definition digital processing and 106dB s/n ratio these amps deliver pure audiophile sound quality. When the X-A90M digital mono amplifier is teamed with the X-Series X-A70F Hi-Res Audio certified full-range amplifier and X-Series Hi-Res Audio certified ultra-high-end speakers you can experience sound like never before, with a superlative dynamic range and unparalleled definition. X-Series lets you experience pure high-resolution sound as the music artist intended.

Cast Aluminium Heat Sink 
The X-Series Amplifiers can perform at their peak power levels for a large period of time due to the chassis being a solid cast aluminium heat sink. The newly designed heat sink allows for hot air to rise out from the top, which causes a vacuum that draws in cool air from below. This provides thermal control for an uninterrupted listening experience.

Smart Installation
Alpine has completely redesigned the speaker terminal connectors on the X-Series amplifiers. This ensures a very compact design that allows clean and simple installation with lossless connectivity. With the intention of delivering high performance these connectors play a vital role in the stability and failsafe operation of the amplifier.

SKU: 10091

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