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Autotek SM2-400

400W Max, 2-Channel Street Machines Series Car Amplifier

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Street Machine AT 2-Channel Class A/B Car Amplifier • 400 Watts Max • 200 Watts RMS • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection Circuitry • Bass Boost

Learn more about the sm2400

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This item has been discontinued


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Product Highlights


Street Machine AT 2-Channel Class A/B Car Amplifier • 400 Watts Max • 200 Watts RMS • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection Circuitry • Bass Boost

Description


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Authorized dealer

General Features:
  • Street Machine AT 2-Channel Class A/B Car Amplifier
  • Dynamic (Max) Power Rating:
    • 4 ohm: 100 watts x 2 chan.
    • 2 ohm: 200 watts x 2 chan.
    • Bridged, 4 ohm: 400 watts x 1 chan.
  • Total max power output: 400 watts
  • Twin coil MOSFET auto step power supply
  • LED power and protect indicators
  • Bass Boost/EQ (0-12 dB bass boost at 45 Hz)
  • 2/1 channel operation
  • Speaker-level inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs
  • Pro-Fi MOSFET outputs
  • 4-Way System Protection circuitry (DC, thermal, overload, and speaker short protection)
  • Soft start turn-on
  • Heavy duty aluminum alloy heatsink for extreme heat dissipation
  • Silver-plated RCA level inputs
  • Silver-plated screw terminals
  • Variable high-pass filter (60-1,200 Hz, 12 dB/octave)
  • Variable low-pass filter (30-250 Hz, 24 dB/octave)
  • Damping Factor: >180
  • Frequency response: 30-1200 Hz
  • Dimensions: 10-1/4"L x 9-7/16"W x 2-5/16"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

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Specifications & Details


Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
400 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.05%
Speaker Level Inputs
Yes - with included adapter
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
60 - 1,200 Hz
Low-Pass Crossover Frequency
30 - 250 Hz
Signal-to-Noise Ratio
90 dB
Channel Separation
80 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Fuse Rating
30A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SM2-400

Weight:

8.00lbs

Internal SKU:

sm2400

Internal Product ID:

18716

Product and How-to Videos


Customer Ratings & Reviews


Autotek SM2-400 thumbnail image

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



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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great amp

the Autotek SM2-400 is a very good amp for my rear channel. It has the power that I was looking for it is a very good amp case closed . I would recommend it to anyone who is looking for good power. Like I said very good amp do not let it pass you bye. fantastic amp.

- a happy customer

By none on October 29, 2010

1 found this helpful


Great bang for the buck

Easy to set up and small enough to fit anywhere with a lot of power to pump your subs

By Chris on February 9, 2011




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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.