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Description
Autotek SM-2400.4D STREET MACHINE Series 2400W Max Class-D Full-Range 4-Channel AmplifierAutotek Street Machine SM 2400. 4D High Power Full Range Class D 4 Channel Amplifier 2400 Watts The Autotek SM 2400. 4D stands as the most powerful 4 channel amplifier in the Street Machine lineup, delivering a massive 2400 Watts of peak power. Engineered with high efficiency Full Range Class D circuitry, this amplifier provides incredible headroom for high end door speakers, components, and subwoofers without the massive footprint or heat generation
Autotek Street Machine SM-2400.4D High-Power Full Range Class D 4-Channel Amplifier – 2400 WattsThe Autotek SM-2400.4D stands as the most powerful 4-channel amplifier in the Street Machine lineup, delivering a massive 2400 Watts of peak power. Engineered with high-efficiency Full Range Class D circuitry, this amplifier provides incredible headroom for high-end door speakers, components, and subwoofers without the massive footprint or heat generation of traditional A/B amplifiers. Featuring Pro-Fi™ MOSFET technology for rapid switching and stable power delivery, the SM-2400.4D is perfect for enthusiasts looking to drive a complete high-output system from a single, compact chassis. The brushed aluminum heatsink provides a classic aesthetic while ensuring the internal components remain cool under the most demanding musical loads.
Key Features
- Extreme Class D Power: High-efficiency Full Range Class D design provides 2400 Watts of peak power in a compact, easy-to-mount chassis
- 4-Channel Flexibility: Ideal for powering four high-performance speakers or bridging into 2-channel mode to drive two high-output subwoofers
- Pro-Fi™ MOSFET Performance: High-speed MOSFET components ensure consistent, stable power and superior audio fidelity across the entire frequency range
- Variable Electronic Crossovers: Features independent 12dB per octave High Pass (HP) and Low Pass (LP) filters for precise speaker and subwoofer tuning
- Adjustable Bass EQ: Built-in 45Hz Bass Boost provides 0 to +9dB of adjustment to tailor your system's low-end punch
- Signal Integrity: Nickel-plated RCA inputs and screw-down terminals provide maximum signal transfer and long-term resistance to corrosion
- Advanced Protection Circuitry: Includes built-in monitoring for thermal, overload, short-circuit, and DC offset protection with visual LED indicators
- Classic Street Machine Styling: The iconic brushed silver aluminum heatsink is designed for maximum heat dissipation and a professional look
- Multi-Mode Capable: Allows for flexible 4, 3, or 2-channel operation to accommodate almost any system configuration
- 2400 Watts Peak Power
- Frequency Response: 10Hz – 22kHz
- Dimensions: 9.3" L x 5.5" W x 2.1" H
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
My Border Collie's absolute favorite toy!
Size: Small, Style: Chipmunk
Stuffed animal (with squeaker) securely attached to rope hoop. Lasts a long time as a kind of frisbee. However, really an outdoor toy for active play, because when my dog has a chance to lie down comfortably this toy will get torn apart and shredded fast!!! (This is his third!) Can be repaired for awhile to prolong use with strong cotton carpet thread, but it is not immortal, so be advised.
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Reviewed in the United States on August 17, 2025
★★★★★ 5
Fantastic Toy, Completely Worth It!
Size: Small, Style: Mallard Duck, Size: Small, Style: Mallard Duck
Ever so slightly smaller than I expected but that’s really on me for not checking the measurements. It’s not too small anyway, so it’s alright. It’s definitely a very high quality material, my dog plays super rough with it and still has yet to make more than a very tiny hole (which was easy to stitch). It’s well-stuffed, super cute, and not too realistic but realistic enough to give that duck vibe. It’s built very sturdy, so I expect it will last a long time still. It survived its first two washes just fine as well as the dryer, and the quality of the fuzz hasn’t really gone down. Definitely worth the buy! Will absolutely buy a second one when he finally does destroy this one, since he’s obsessed with it. It’s his favorite toy (and honestly, mine too, it keeps him so entertained and it holds up wonderfully).
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Reviewed in the United States on December 7, 2025
★★★★★ 4
Nice but not strong enough
Size: Small, Style: Chipmunk
I buy these for my two Corgis, who love to play tug of war with them. But it doesn't take very long for the ropes to pull out. I wish they were a little stronger.
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Reviewed in the United States on October 13, 2024
★★★★★ 1
Not up up to puppy play
Size: Small, Style: Chipmunk, Size: Small, Style: Chipmunk
This pet toy sure looks nice but it’s not made to hold up to any type of play.
We have 5 lb puppy and she pulled the rope out of the body in two days. We returned it and got a replacement. That one lasted three days before the fuzzy surface was shedding all over our carpet and she was ingesting the material.
If it can’t hold up to a 5 lb puppy, I can’t imagine what a larger dog would do to it.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Great toy
Size: Large, Style: Squirrel
My two dogs loved to tear into this toy. Looks like the real thing. Not very loud squeek, so it works for me.
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Reviewed in the United States on December 31, 2025
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