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Autotek SM2-400

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

5.0

(2 reviews)

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The product on this page is discontinued.
General Features:
  • Street Machine AT 2-Channel Class A/B Car Amplifier
  • Dynamic (Max) Power Rating:
    • 4 ohms: 100 watts x 2 chan.
    • 2 ohms: 200 watts x 2 chan.
    • Bridged, 4 ohms: 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
Power Specifications - Full Range Channels
RMS Power @ 4 ohmsN/A
RMS Power @ 2 ohmsN/A
RMS Power @ 1 ohmN/A
Bridged RMS PowerN/A
Peak Power Output400 watts x 1 channel
Amplifier Specifications
Amplifier ClassAB
Number of Channels2
Total Peak Power Output400 watts
Total RMS Power OutputN/A
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power0.05%
Speaker Level InputsYes - with included adapter
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency60 - 1,200 Hz
Low-Pass Crossover Frequency30 - 250 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio90 dB
Channel Separation80 dB
Bass Boost0 - 12 dB
Bass/Gain RemoteNo
Fan CooledNo
Fuse Rating30A x 1 
CEA-2006 CompliantNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Autotek SM2-400
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 2 Reviews
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Rating Distribution:
5 star:
.
100%
4 star:
.
0%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
5.0
what's this?
Most Helpful Customer Reviews:
February 9, 2011 Great bang for the buck
Review by
Chris from Goldsboro, NC
Overall
Durability
Value
Features
Design
Usability
Easy to set up and small enough to fit anywhere with a lot of power to pump your subs
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October 29, 2010 great amp
Review by
none from brunswick, maryland 21716
Overall
Durability
Value
Features
Design
Usability
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
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Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
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Universal Remote Level Bass ControlUniversal Remote Level Bass Control
Controls bass level and frequency via RCA/Interconnect connectors on any amp.		$14.99
Small Universal Remote Level Bass ControlSmall Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.		$12.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install		$24.49
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction		$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!		$13.99
Monster Cable 300 Series XLN+ Audio Interconnect CableMonster Cable 300 Series XLN+ Audio Interconnect Cable
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 6-cut turbine MirrorChrome connectors, and 2-way time correct windings for the ultimate RCA cable!		$45.00
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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Monster Cable MPC P300 MCAP-.5FMonster Cable MPC P300 MCAP-.5F
Chrome 1/2 Farad Capacitor for up to 500W Max (250W RMS)		$79.00
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB8StreetWires FB8
8 Gauge Firewall Bushing		$4.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs		$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.		$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

Product Summary

Manufacturer: Autotek
Model number: SM2-400
UPC: 806576215561
Weight: 8.00 lbs
Internal SKU: sm2400
Internal product ID: 18716

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