Axxera AX550D

5-channel car amplifier — 56 watts RMS x 4 at 4 ohms + 400W x 1 at 2 ohms

Item #: 070AX550D

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Good things come in small packages

Axxera's Mini Series car amplifiers pack a lot of sound into a small space. Their AX550D amplifier packs five channels of power into an extremely compact chassis, driving your front and back speakers at 56 watts each while sending up to 400 watts to your subwoofer. This all-in–one powerhouse is only 1-5/8” high and 4-3/4" wide, allowing it to fit under most car seats or in just about any tight spot in your vehicle.

Fine tuning

This Axxera amp also includes multiple controls to tailor the response to your liking. The variable high-pass and low-pass crossovers maximize the performance of your speakers and subs, while you can use the variable bass boost and subsonic filter to tune the subwoofer for just the right quality of boom. Axxera even includes a wired remote control that lets you adjust your subwoofer level from the driver's seat.

Product Highlights:

  • 5-channel car amplifier
  • 56 watts RMS x 4 + 200 watts x 1 at 4 ohms
  • 79 watts RMS x 4 + 400 watts x 1 at 2 ohms
  • 154 watts RMS x 2 bridged at 4 ohms (4-ohm stable bridged) + 400 watts x 1 at 2 ohms
  • Class D amp technology
  • full MOSFET DC-DC PWM power supply
  • variable high- and low-pass crossovers (35-250 Hz, 12 dB/octave)
  • variable bass boost (0-12 dB at 45 Hz)
  • remote bass level control included
  • frequency response: 10-35,000 Hz
  • preamp and speaker-level inputs
  • fuse rating: 40A x 1
  • 4-gauge power and ground leads recommended—wiring and hardware not included with amplifier
  • dimensions: 10-1/4"W x 1-5/8"H x 4-11/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Hands-on research

What's in the box?

Download owner's manual

  • 5-Channel Class D amplifier
  • One 40-amp ATO fuse (installed)
  • Three 4" RCA input harnesses
  • Three 8" Speaker-level input harnesses
  • Wired remote bass control
  • 15' Remote cable (RJ-25 plug on one end and proprietary plug on the other)
  • Four 5/8" Self-tapping screws
  • Two 3/8" Self-tapping screws
  • Owner's manual

Product Research

Features
Controls
Connections

Features

Channel Configuration: The Axxera AX550D is a 5-channel amp; essentially two full range 2-channel amps and one mono subwoofer amp built into one chassis. Both full range sections are bridgeable, so the it can be configured as a 5-channel, 4-channel, or 3-channel amplifier.

  • Channels 1/2 and 3/4:
    • 4Ω: 56 watts RMS x 4-channels
    • 2Ω: 79 watts RMS x 4-channels
    • Bridged: 154 watts RMS x 2-channels into 4Ω
  • Channel 5:
    • 2Ω: 400 watts RMS x 1-channel

Signal Inputs: Both RCA harnesses and speaker level harnesses are included to plug into the three input ports on the amp.

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

Controls

Level Control (Gain): The input levels are independently adjustable for channels 1/2, 3/4, and 5. The input range is 0.5 Volts to 12.0 Volts.

Crossover: The amp has independent crossover controls for channels 1/2, 3/4, and 5. The crossover slopes are all 12 dB/octave:

  • Channels 1/2:
    • Mode: two position switch; choose flat (full range, crossover is bypassed) or high pass
    • Frequency: set the crossover point when in high pass mode; rotary dial; 35-250 Hz
  • Channels 3/4:
    • Mode: two position switch; choose flat (full range, crossover is bypassed) or high pass
    • Frequency: set the crossover point when in high pass mode; rotary dial; 35-250 Hz
  • Channel 5: because the channel 5 is the subwoofer section, the low pass crossover is always engaged
    • Frequency: set the low pass crossover point; rotary dial; 35-250 Hz

Bass Boost: The bass boost on channel 5, centered at 45 Hz, is continuously variable from 0 dB (flat) to +12 dB.

Wired Remote: A wired subwoofer level control is included (channel 5 only). 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 (2-1/4" including the mounting flanges) x 1" tall x 1-5/8" deep (2-1/4" including the knob and cable).

Connections

Power Input: Two set-screw terminals are provided for connecting the power and ground cables. The terminals accept up to 8-gauge wire. The set screws are tightened/loosened with a Phillips head screw driver (not included).

Speaker Outputs: The five pair of speaker output set-screw terminals will accept up to 8-gauge wire. The set screws are tightened/loosened with a Phillips head screw driver (not included).

Signal Input: The amplifier has three proprietary signal input jacks, for use with either the included RCA harnesses or the included speaker level harnesses.

Remote: The wired remote cable plugs into another proprietary jack on the amp. The remote turn-on wire is also found in this harness.

Fuse: The amp has one 40-amp ATO fuse.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Axxera AX550D Reviews

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Inpressive

Written By Jonathan, Columbia sc on Saturday, December 06, 2014

Crutchfield Customer Review (What's this?)

Didn't have high expectations since I was ready to to JL Audio but hated spending $600 on an amp and I needed something compact for my 2011 Bimmer. For the price, this is a heck of an amp.

Pros: Value ratio, clean power, CEA rated, size

Cons: Once it's installed it's difficult to be to get to the gain settings since the amp is so small.

Get everything you’ll need to enjoy your new Axxera AX550D

Bring the music from your amp to your speakers.
Patch cables take the music from your stereo to the amplifier. Most amp wiring kits don't include them.
The right tools will make the installation easier.
Helps protect your car's charging system and improves power handling. Required power and ground wires not included with cap.
T-Spec 8PK Installation Kit

T-Spec 8PK Installation Kit

8-gauge amplifier wiring kit — includes speaker wire

Item #: 1208PK

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EFX PA8BX Wiring Kit

EFX PA8BX Wiring Kit

8-gauge amplifier wiring kit — includes 2-channel patch cable

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T-Spec 8RAK Installation Kit

T-Spec 8RAK Installation Kit

8-gauge amplifier wiring kit — includes 2-channel patch cable and speaker wire

Item #: 1208RAK

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T-Spec V10-RAK8

T-Spec V10-RAK8

8-gauge amplifier wiring kit — includes 2-channel patch cable

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Kicker PK8

Kicker PK8

8-gauge amplifier power wiring kit

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Kicker CK8

Kicker CK8

Complete 8-gauge amplifier wiring kit — includes 2-channel patch cable and speaker wire

Item #: 206CK8

$99.99
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Rockford Fosgate RFK8

Rockford Fosgate RFK8

8-gauge amplifier power wiring kit

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Rockford Fosgate RFK8i

Rockford Fosgate RFK8i

8-gauge amplifier power and signal wiring kit

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T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

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Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

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T-Spec 4-Channel RCA Patch Cable

T-Spec 4-Channel RCA Patch Cable

17-foot length

Item #: 120RCA174

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$29.99
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T-Spec 2-Channel RCA Patch Cables

T-Spec 2-Channel RCA Patch Cables

Available in 7 different lengths (17-foot)

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EFX 17-foot RCA Patch Cable

EFX 17-foot RCA Patch Cable

Item #: 142A17C

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T-Spec RCA-Y1 Y-Adapter

T-Spec RCA-Y1 Y-Adapter

1 female RCA/2 male RCA

Item #: 120RCAY1

(1)

EFX 2-Channel RCA Patch Cables

EFX 2-Channel RCA Patch Cables

Reference Series Multi-Core RCA patch cables — available in 5 different lengths (12-foot)

Item #: 142RR12

$19.95
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EFX 2-Channel RCA Patch Cables

EFX 2-Channel RCA Patch Cables

Core Series Twisted RCA patch cables — available in 5 different lengths (12-foot)

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EFX 2-Channel RCA Patch Cables

EFX 2-Channel RCA Patch Cables

Elite Series Braided Multi-Core RCA patch cables — available in 5 different lengths (25-foot)

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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100

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Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

Item #: 042DM4533

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 3 pry tools — helps remove interior and exterior trim and door panels

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

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Pro.Fit Trim Panel Tool

Pro.Fit Trim Panel Tool

Remove your vehicle's trim panels without damage

Item #: 042DM4022

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Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

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S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

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Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

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Install Bay 3320

Install Bay 3320

Auto-ranging digital multimeter

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Install Bay IB35400

Install Bay IB35400

Premium door panel and trim tool

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T-SPEC V6-MANL Fuse Holder

T-SPEC V6-MANL Fuse Holder

4- to 8-gauge mini-ANL fuse holder

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(4)

T-SPEC V8-MANL Fuse Holder

T-SPEC V8-MANL Fuse Holder

4- to 8-gauge mini-ANL fuse holder

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(1)

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T-SPEC V8 Mini-ANL Fuses

T-SPEC V8 Mini-ANL Fuses

Pair of nickel-plated mini-ANL fuses (40-amp)

Item #: 120MANL40

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T-Spec Capacitor

T-Spec Capacitor

1.5-farad capacitor with red LCD meter

Item #: 12015DDC

(11)

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T-Spec Capacitor

T-Spec Capacitor

3.0-Farad capacitor with red LCD meter

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DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

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Autosound 2000 Disc One

Autosound 2000 Disc One

Low Frequency Test CD (Disc One)

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(1)

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Autosound 2000 Disc Two

Autosound 2000 Disc Two

Image/Placement Test CD

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Autosound 2000 Disc Three

Autosound 2000 Disc Three

System/Environmental Test CD

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Autosound 2000 Disc Five

Autosound 2000 Disc Five

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