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Alpine X-A90M

900 W RMS X-Series Class-D Monoblock 2 ohm Stable Amplifier

In Stock
|

List price $550.00

You Save: $104.54 (19.01%)

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$445.46

with warranty

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Bundles with this Product

AMP+CC1

Get 25% Off an SMD CC-1 Crossover Calibrator with the Purchase of a Qualifying Amplifier. Simply Click the "Add Both to Cart" button below.

37.25

133713

3087

Alpine X-A90M

$445.46

+

25% OFF

SMD CC-1 Crossover Calibrator by Steve Meade Designs

$148.99

Special Price $111.74 ($148.99 if purchased separately)

SMD CC-1 Crossover Calibrator by Steve Meade Designs

Crossover Calibrator • Also Matches The Gain Settings On Amp(s) • Circuitry Is Digital Microprocessor Controlled • Crossover -3dB Point Accuracy +/- 0.25dB • Auto-Shut Off Timer

Get a FREE Kinetik HC600-BLU Battery with Purchase!

Purchase an Amp and get a FREE HC600-BLU Battery This offer cannot be combined with any other coupons or offers.

47.94

133713

3085

Alpine X-A90M

$445.46

+

100% OFF

Kinetik HC600-BLU

$47.94

Special Price $0 ($47.94 if purchased separately)

Kinetik HC600-BLU

• 12V High Current Car Audio Power Cell
• Sealed Absorbed Glass Mat (AGM) Design
• Perfect for 600W Car Audio Stereo Systems
• Ultra Low ESR
• Leak-Proof, non-hazardous design
• 12 Amp Hours
• 100% Sealed and Maintenance Free

Add a Free Remote Bass Knob to Your Amp Purchase

Limited Time Offer! Add a RUX-KNOB.2 Remote Bass Knob to your Alpine Amplifier for Free! This offer cannot be combined with any other coupons or offers.

29.95

133713

3033

Alpine X-A90M

$445.46

+

100% OFF

Alpine RUX-KNOB.2

$29.95

Special Price $0 ($29.95 if purchased separately)

Alpine RUX-KNOB.2

• Backwards compatible with amps that use RUX-KNOB
• Works with X-A70F
• Backwards compatible with amps that use RUX-KNOB
• Easily adjust the bass gain of your amp while seated inside
• 16-1/2" (5 meters) Connection cable

FREE 100% Copper, True 4 Gauge Wiring Kit with Select Amps

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69.99

133713

529

Alpine X-A90M

$445.46

+

100% OFF

NVX XKIT42

$69.99

Special Price $0 ($69.99 if purchased separately)

NVX XKIT42

• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit
• For Car Audio Systems Up To 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

50% Off XCAP1F 1.0 Farad Capacitor with Amplifier Purchase

Save 50% off the NVX XCAP1F 1.0 Farad Capacitor with the purchase of a select amplifier. Simply Click the "Add Both to Cart" button to the right. This offer cannot be combined with any other coupons or offers.

45.00

133713

156

Alpine X-A90M

$445.46

+

50% OFF

NVX XCAP1F

$89.99

Special Price $44.99 ($89.99 if purchased separately)

NVX XCAP1F

• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

1.0 Farad Capacitor with Amp Purchase!

10% Belva 1.0 Farad Capacitor with the purchase of a select amplifier. Simply Click the "Add Both to Cart" button to the right. This offer cannot be combined with a product coupons or any other offers.

2.50

133713

480

Alpine X-A90M

$445.46

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Belva BB1D

$24.99

Special Price $22.49 ($24.99 if purchased separately)

Belva BB1D

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

(Offer 1 of 6)

Combined Total Price

$557.20

You Save $37.25

Alpine Audio Store

General Features:

  • Alpine X-Series X-A90M
  • Class-D Full Range 2 ohm Stable Monoblock Amplifier
  • RMS Power Rating:
    • 4 ohms: 600 watts x 1 chan.
    • 2 ohms: 900 watts x 1 chan.
    • 1 ohm: ------------N/A------------
  • Total power output: 900 watts
  • CEA-2006 Compliant Amplifier
  • Hi-Res Audio compatible
  • Wired remote level control, Alpine RUX-KNOB.2, available
  • Included plastic covers available to offer a brushed aluminum finish around the edges
  • LED power (green) and protect (red) indicators
  • Soft start turn-on
  • Mono channel operation
  • Speaker-level (high-level) inputs
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Heavy duty aluminum alloy heat-sink
  • Input sensitivity
    • High level: .4 - 10V
    • Low level: .1 - 4V
  • Frequency Response: 8 - 400
  • Total Harmonic Distortion (THD): .07%
  • Signal to Noise Ratio: >107dB
  • Variable low-pass filter: 50 - 400Hz, -24dB/octave
  • Variable subsonic filter: 8 - 40Hz, -24dB/octave
  • Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz
  • Fuse Rating: 30A x 3
  • 4 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: 11-3/4"W x 7-5/8"L x 2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty


PROP 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov



Check out the X-A70F Owner's Manual

Product History:

Alpine X-A90M thumbnail
(newest, current model)
Alpine PDX-M6 thumbnail
(previous model, replaced by Alpine X-A90M)
Alpine PDX-1.600 thumbnail
(previous model, replaced by Alpine PDX-M6)

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

600 watts x 1 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

900 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
X-Series
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

900 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
.07%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes - with included adapter
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-Pass (LP)
Subsonic
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 400 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
8 - 40 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
107 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 12 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Optional (Accessory required and sold separately)
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
30A x 3 
Total Fuse Rating
The total amperage an amp requires.
90
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Hi-Res Certified
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
Yes

Authorized Dealer

Authorized Dealer
We're an Authorized Dealer for nearly all the brands and manufacturers we sell. In the rare occasion we are not authorized, we guarantee that the product comes from an Authorized dealer or distributor. As such, we will always assist you even past the return policy to assure you the entire manufacturer warranty is covered in the event you have encounter a manufacturer defect.
Authorized Dealer

What is in the box?

WITB: Amplifiers
A detailed list of the equipment (main product and accessories) included with your amplifier. If special accessories are included in the box, they will be listed and detailed below the main list of equipment.
Amplifier
Mounting screws (4)
High-level input wiring harness w/ molex connector
Adhesive brand badge
Allen wrenches (2)
Other Accessory #1
Standard accessories are included in the main list above; however, this line provides specific details on an additional, unique accessory that is included with the product.
4 plastic panels
Paperwork
Paperwork included with the product.
User manual
Warranty/Registration card
Serial number card
Power certification

Specials with this Item

Promotions
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On Sale
Save 10% on ALPINE speakers, subs and amps
VIP Guarantee

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
5.0

Chambersburg, Pennsylvania

Overall
Durability
Value
Features
Design
Usability
Great product with a great price

March 13, 2018

This amp will deliver everything on price and performance. Amazing clearity!

1 of 1 found this helpful

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Accessory Tools and Products

Accessories added

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

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Stinger SK4641 4 Gauge Wiring Kit

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Bass Remote

A bass remote made specifically for the this amplifier.

Your Price $29.95

AudioControl Epicenter-InDash

If you want the best bass possible and a way to measure how loud your system is playing

Your Price $168.93

The Epicenter - Black

Maximize Your Bass Potential with an Audio Control’s legendary Bass Restoration Processor

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AudioControl THE-EPICENTER-WHITE

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NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

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NVX XIX25 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

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4000 Series 2-Channel RCA Cable

17 ft. of 2-Channel 4000 Series RCA Interconnect Cable designed for the Audiophile

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Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

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Belva BBG3KT CCA 1/0 Gauge Big Three Kit

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270 Amp G Series Alternator for Select 1994-2012 GM Vehicles

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240 Amp S Series Alternator for Select 1992-2003 Dodge/Jeep Vehicles

240 Amp cutting edge 6 phase hairpin epoxy reinforced stator technology

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240 Amp S Series Alternator for Select 1999-2006 Jeep Vehicles

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370 Amp E Series Alternator with Black Finish for Select 1994 - 2003 GM

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Kinetik HC1200-BLU

Kinetik BLU Series 1200 Watt 12V High Current AGM Car Audio Power Cell - Battery

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Stinger SPP680

680 Amp SPP Series Dry Cell Battery with Protective Steel Case

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NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

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Belva BB1D

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NVX XTGSP2

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SMD CC-1 Crossover Calibrator

This is a must have! Set your crossover frequency like a Pro

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8 Gauge Ring Terminals, 5/16" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

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4 Gauge Ring Terminals, 5/16" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

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0/1 Gauge Ring Terminals, 3/8" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

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PRO Series Classic Short GM Battery Post Shoc-Krome

Side post battery adapter for GM type batteries (Positive or Negative)

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PRO Series Classic Long GM Battery Post w/ Shoc-Krome Plating

Side post battery adapter for GM type batteries (Positive or Negative)

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200 Amp Relay Isolator (BIR200)

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500 Amp Relay Isolator (BIR500)

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120 Amp 4-Post Battery Isolator

Prevents primary battery discharge and extends battery life

Your Price $62.99

World's Smallest AFS / Mini ANL Fuse Holder

Accepts 4 gauge or 8-gauge wire

Your Price $12.99

4 Pack of 80 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses

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4 Pack of 150 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 150A Nickel Plated Fuses

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2 Pack of 100 Amp Nickel-Plated ANL Fuse

ANL 100A Nickel plated for better power transfer

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2 Pack of 200 Amp Nickel-Plated ANL Fuse

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2 Pack of 300 Amp Nickel-Plated ANL Fuse

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Gauge Reducer, 4 Gauge Input to 8 Gauge Pin

Great for amplifiers that do not accept a large gauge power wire

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Gauge Reducer, 1/0 Gauge Input to 4 Gauge Pin

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XIX2025 Strapping RCA

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Product Summary

Manufacturer

Model Number

X-A90M

Weight

10.00lbs

Internal SKU

xa90m

Internal Product ID

133713

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alpine X-A90M

Item Added to Cart

Alpine X-A90M

900 W RMS X-Series Class-D Monoblock 2 ohm Stable Amplifier

$445.46

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Belva BAK42BK 4 Gauge Amplifier Installation Kit

Great amps need great wire at a great price. This amp kit has everything you need!

$29.99

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Bass Remote

A bass remote made specifically for the this amplifier.

$29.95

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AudioControl Epicenter-InDash

If you want the best bass possible and a way to measure how loud your system is playing

$168.93

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