MTX Thunder Elite 601D

Mono subwoofer amplifier
600 watts RMS x 1 at 2 ohms

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  • MTX Thunder Elite 601D


  • MTX Thunder Elite 601D

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  • MTX Thunder Elite 601D


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Our take on the MTX Thunder Elite 601D

by Buck Pomerantz

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.

MTX Thunder Elite Amps

Thunder Elite heatsink and fans

Prizm EFX color display The MTX Thunder Elite amplifier packs a lot of features and technologies under its handsome black case and distinctive chrome air intake cover. A self-adjusting fan cools the special output stage transistors to ensure consistent power and durable performance. The Prizm EFX™ feature allows you to match the color of the amp's display to your car and to adjust its light to pulse with the music.

Easy-access connections and controls

MTX mounted all the StreetWires-designed input and output terminals on one side to help make wiring neat, and you'll find the amp's controls on top for easy access. Smart Engage™ speaker-level inputs power up the amp automatically when you turn on your stereo, eliminating the need for a turn-on lead from the receiver.

TE-601D performance

The Thunder Elite 601D mono sub amp delivers up to 600 watts RMS to your subwoofer system. A variable low-pass filter, a bass boost, and a subsonic filter make sure that you can shape your bass tones the way you want.

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  • mono subwoofer amplifier
  • 300 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • MTX Prizm EFX selectable color display
  • variable low-pass filter (40-200 Hz)
  • bass boost (0-18 dB at 40 Hz)
  • speaker-level inputs with Smart Engage
  • Xtant Technologies Cooling internal thermal management
  • Class-D amplifier design
  • MOSFET power supply
  • fuse rating: 25A x 3
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 16-3/4"W x 2-9/16"H x 10-11/16"D
  • warranty: 5 years (free repair or replacement for 2 years; prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
RMS Power Output (Watts x Channels) 300 x 1
Peak Power Output (Watts x Channels) 1200 x 1
Power at 2 Ohms (Watts x Channels) 600 x 1
Bridged Power (Watts x Channels) N/A
Minimum Impedance Bridged N/A
Minimum Impedance Unbridged 2
Best Frequency Response 20-200 Hz
THD at Rated RMS Power 0.5%
Signal to Noise Ratio 71 dB
Input Voltage 14.4v
Amplifier Class D
Low-Pass Crossover Frequency 40-200 Hz
Low-Pass Slope (dB/octave) 24 dB/octave
High-Pass Crossover Frequency N/A
High-Pass Slope (dB/octave) N/A
Bass Boost 0-18 dB
Bass Boost Frequency 40 Hz
Fan Cooled Yes
Fuse Rating 75
Speaker Level Inputs RCA adapter incl.
Preamp Outputs No
Width (inches) 16-3/4
Height (inches) 2-9/16
Depth (inches) 10-3/4
Parts Warranty 5 Years (3-5 Prorated)
Labor Warranty 5 Years (3-5 Prorated)
Product Research
What's in the box?

Download owner's manual

  • Mono-block amplifier
  • Three 25 amp fuses (installed)
  • Two 10' Smart-Engage speaker level input cables (each has an RCA connector on one end and tinned bare wire on the other)
  • 4 Terminal covers (2 installed)
  • 1/8" Allen wrench
  • External Bass Control with attached 20' cable (terminated with a stereo minijack connector)
  • External Bass Control mounting bracket
  • 1 Self-adhesive Min/Max label
  • 1 Knob (for the External Bass Control)
  • 2 Self-tapping screws
  • 1 Large flat washer
  • 2 Small flat washers
  • 2 Lock washers
  • 1 Hex nut
  • One 3.75" wire tie
  • Cleaning cloth
  • Installation guide
  • Amplifier Performance Certificate
  • MTX Audio and Streetwires stickers

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.



Performance Certificate: MTX tests each amplifier and the measured specifications (power output, S/N ratio, THD+N, and frequency response), along with the amp's serial number, are recorded on the included Performance Certificate. The amp must meet or exceed the rated specifications in order to leave the factory.

Adaptive Class D Technology: While typical Class D amps tend to generate high frequency energy that must be filtered to prevent harmonic interference in the FM radio frequency range, Adaptive Class D Technology directs the amp's switching energy away from FM radio ranges as the amp's load and output increases. This improves the amp's overall signal-to-noise ratio and eliminates interference generated by more common Class D amps.

Xtant Technologies Cooling (XTC): The Xtant Technologies Cooling (XTC) thermal-regulated, turbo-charged intercooler supplies fan forced cool air evenly and constantly through tightly packed, bonded fins. Fan speed is continuously variable and controlled by amplifier's output load and the temperature of the heatsink and transformers. Exhaust of internal heatsink is strategically positioned to cool transformers and maintain maximum performance at all volumes.

Prizm EFX: With the MTX Prizm EFX, you can adjust the color of the backlighting to match your vehicle interior. The color can be adjusted from red to purple to blue to green to white, or any color in between. If desired, you can have the Prizm EFX lighting to pulsate with the beat of music or turn the lighting off altogether.


Top Mounted Controls: All the adjustable controls are top mounted for easy access.

Input Sensitivity: The input sensitivity switch can be set to x1 or x10. When set to x1, the input sensitivity is adjustable from 100mV - 1V. When set to x10, the input sensitivity is adjustable from 1V - 10V.

Bass Boost: For added intensity the bass boost is adjustable from 0 to 18 dB at 40 Hz.

Low-Pass Filter: The internal low-pass crossover point is continuously variable from 40 Hz to 200 Hz. The crossover slope is 24 dB per octave.

External Bass Control (EBC): The External Bass Control lets you adjust the output level of the amplifier from anywhere in the vehicle. When attached to the mounting bracket, the External Bass Control is 1.6" wide, 1.042" tall, and 2.402" deep (including the knob). If flush mounted, the knob protrudes approximately 0.86 inches. The 20' cable attached the the EBC plugs into a 3.5mm mini-jack on the front of the amp.


StreetWires Connectors: This amp features StreetWires wire terminals for efficient current and maximum voltage transfer. All the connections are across the front of the amp and sized for heavy gauge wire:

  • Power: 4 gauge
  • Ground: 4 gauge
  • Remote: 8 gauge
  • Capacitor: 8 gauge
  • Speakers: 8 gauge

Smart-Engage: When using the speaker-level input, the amp automatically turns on when it senses signal from the head unit, eliminating the need for a remote turn-on connection. In many cases, this feature will allow you to install the amplifier without removing your radio.

Bi-level Inputs: The RCA inputs will accept both speaker-level and line-level signals. To take advantage of the speaker-level input, use the included high-level adapter cables.

Capacitor Terminals: Shorted to the main power and ground terminals beside them, there are positive and negative capacitor terminals; making adding a capacitor easy.


5 Year Warranty Terms: This product carries a 5-Year Prorated Warranty with the following terms:

  • Years 1-2: Products found to be defective in materials or workmanship during the first two years will be, at Mitek's option, repaired or replaced by Mitek at no charge. The warranty period does not renew, but continues on from the original date of purchase.
  • Years 3-5: The purchase price of an item which becomes defective after the first two years and prior to the end of the warranty period will be prorated and credited toward the purchase of a new MTX product. The amount of proration is determined by dividing the original purchase price by the number of months in the warranty period (60), then multiplying the result by the number of months remaining in the warranty period.
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MTX Thunder Elite 601D Reviews

Average Customer Review:

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5 out of 5

One of the best most under appreciated amps

Written By mike, indiana on Sunday, July 06, 2014
One of the most feature rich and sexiest car amplifiers ever made but also one of the more overlooked and didn't get much attention.
I have had mine for a couple years now and it never missed a beat. A true, rock solid amplifier with consistent power.
High gloss finish does scratch.
4 out of 4 people found this helpful
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5 out of 5

Wish I had done a little more research

Written By Jamison, Opp, Alabama on Saturday, April 12, 2014
Crutchfield Customer Review (What's this?)
The amp is great for its own rated power, I just should have gotten a bigger amp my speakers give this one to much of a workload
Was this review helpful?    Yes | No
5 out of 5

Amazing amplifier!

Written By DatQuattro_EJ, Layton, UT on Tuesday, December 24, 2013
This amplifier is awesome! It provides a clean, constant 600 watts to my Sundown SA-12. The amp looks beautiful, and the colors on the top add to this. The terminals are very high quality, and the finish on the top (gloss black and chrome) looks sick! I would recommend this amp to anyone who wants nice looking product, with good output. It may only be 600 watts, but the power is clean, so you don't have to worry about it ruining your subwoofer. My Sundown sub is 600w RMS, and the box is a 2^3 ft tuned at 34 hz. It hits better than all my friend's setups who have 1000w with 2 12' subwoofers. This amp is paired perfectly to my setup, and it is the pinnacle of bass for me. My next purchase is the 4 channel amp that matches this perfectly!
Clean power Good terminals Awesome look Bright LEDs Reliable
4 out of 4 people found this helpful
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