X Series – X A90V 4 Channel Mono Power Amplifier

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Alpine introduces the all-new X-Series of high-grade speakers and amplifiers. 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.


Amplifier Type:
Class-D (Digital)
Channel Design:
4-channel + 1-channel (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
Adjustable Low-pass (LPF) / High-pass Filter (HPF)
Built-in Bass EQ
Subsonic Filter:
Variable Subsonic Filter
Gain Control:
Bass Control:
Remote Bass Control (RUX-KNOB2) Ready