Tag: Earthquake Sound

Personal Review: Kicker ZX750.1 & Earthquake Subzero

Being an employee at Sonic Electronix,  it’s nearly impossible to avoid buying car audio equipment.  I for one could not resist the temptation.  I indulged in the Kicker ZX750.1 amplifier paired with the Earthquake Subzero SZ-10 subwoofer.  Im here to give you my honest opinion and review of my choice and maybe help you along the way in making a choice of your own!

Kicker ZX750.1 

Kicker ZX750.1

Kicker ZX750.1

First off lets start with the amplifier.  The ZX750.1 is the perfect match for my subzero.  This amplifier pumps out 750W RMS at a 2 ohm load, perfect for the Dual 4 ohm sub which wires to a final impedance of 2 ohms.  However, the birth sheet states over 900 watts RMS which my sub can scarf down with ease.  The amplifier’s chassis is compact enough to allow me to mount it on the sidewall of my small trunk, space is at a premium.  Tuning the amplifier was a breeze because it includes a low-pass crossover frequency selector, bass boost and gain adjustment.  While some people might find the simplistic design of a monoblock amplifier to be a bad thing, it made it easy for me to find the desired sound I was looking for right away.  I turned the gain 1/4 a turn to match the 2 volt output of my headunit so the signal won’t clip, meaning my bass will sound crystal clear with no pops, thumps or crackles even at high volume.  The amplifier dissipates heat very well, even after extended periods of brutal bass notes it was only warm to the touch. I can play sweet bassy songs all day long without this amplifier breaking a sweat which is good news when it comes to my addiction to bass.  I tried to come up with shortcomings for this amplifier but so far I’ve had no negative experiences.  It’s priced reasonably for the build quality and power output and has been quite reliable for the duration of ownership.  If anyone tries to tell you that Kicker amplifiers are garbage, don’t listen to them….just don’t.

Earthquake Subzero SZ-10

Earthquake Sound SZ-10

Earthquake Sound SZ-10

Now the fun part!  If you are unfamiliar with Earthquake Sound, you are probably not alone.  They are a brand that should be as well known as Kicker or JL because of their high quality system components.  The Subzero is one of their top of the line subwoofers and I decided to go with one of their 10″ versions.  You might be thinking that just one 10″ subwoofer will not produce the pounding bass that two average woofers could produce but you would be wrong my friend.  I have this in a 1.0 cubic foot sealed box which is not exactly ideal for maximizing bass output in comparison to a vented enclosure, but that is exactly what it does.  This sub is rated at 750W RMS and like I stated previously, im pushing over 900 watts to it so it pounds hard and loud.  Connecting this subwoofer to the amplifier was easy due to the PSP terminals on the Subzero which use fuses to give you different ohm loads.  This eliminates the use of pesky jumper cables between the terminals.  The only complaint that I have is that my car is falling apart from all of the bass rattling the screws right from their panels.  I need to sound dampen my car to reduce vibrations and rattling before it’s too late.  If you’re wondering, it does play every genre of music exceptionally well, from the low bass notes of E-40 to the soothing bass lines of Sublime.

Oh, did I mention that it has some serious excursion? If you don’t believe me, check out this video of my Subzero and amplifier in action.  Enjoy : )

Any comments or questions about my system? Comment below!


Matching Subwoofers and Amplifiers

AmpliFinder Amplifier and Subwoofer Matching Tool

Earthquake Subzero SZ10 Subwoofer

Kicker ZX750.1 Amplifier

Making Matching Easier

One of the most common questions asked at Sonic Electronix is, “How do I know which amplifier I need for my subwoofer?”  This can be a hard or even intimidating question for some but fear not Sonic Electronix has your back!  Introducing our brand new AmpliFinder tool.  AmpliFinder is an amplifier finder tool that will take away the confusion of pairing a subwoofer with an amplifier.  Not only will it tell you which amplifier you require, but it will give you a complete list of every amplifier that is suitable for your subwoofer.

JL Audio W7 Subwoofer

MTX RT500D Amplifier

How it Works

AmpliFinder will lay out the possible wiring configurations for your subwoofer.  Depending on the ohms and number of voice coils of the subwoofer, different wiring configurations will be displayed.  AmpliFinder will also take into account the RMS power rating of each subwoofer to appropriately match that of the amplifier.   Just select the manufacturer, model number, and the number of subs you wish to power and prepare to be wowed by the abundance of possibilities.  For example,  the Earthquake Subzero SZ-10, when input into the AmpliFinder will give you the Kicker ZX750.1 as a choice which is a perfect match for the 750 watts RMS subwoofer.   Also, the JL Audio 8W7AE-3  when entered will give you the MTX RT500D which is a perfect match at 2 ohms as well.

  • Conveniently search for specific subwoofers with a user friendly interface
  • Displays complete list of compatible amplifiers
  • Visual wiring configurations included in search

Why wait? Give it a try now:



Earthquake Sound’s Best Valued Subwoofers

For those of you who aren’t interested in spending a lot of money but would love to get some bass in your car, there is an answer. Sonic Electronix is proud to offer both the DB Series and the TNT Series subwoofers by Earthquake Sound. These subs are similar in price but very different in design, and we are going to highlight some key features of each series.

The TNT Series Subwoofers feature an extremely high cone excursion for maximum movement of air. The high-roll foam surround allows the speaker cone to maintain complete linear movement while moving rapidly, which assists the cone in achieving its excursion. This series is designed for anyone interested in getting an explosive sound at the most affordable price possible. The voice coils on these subs can withstand high temperatures, allowing the magnet motor structure to operate cleaner and more efficiently. Earthquake Sound has stripped the subwoofer down to its basics with the TNT series, allowing more focus on the performance and not the flashiness.

The DB Series Subwoofers are similarly priced to the TNT’s, and they offer a higher quality output that matches perfectly to any high end set of car speakers. You’ll be impressed with the DB subwoofers once you hear them. They produce hard hitting bass with smooth transient peaks. The Pulp Fiber subwoofer cone sounds excellent in lower frequencies, and produces a very smooth and transparent roll-off into higher frequencies. Backed by a 5-year manufacturer warranty, it’s easy to see that Earthquake stands behind their products. If your sound system is lacking a lower sound stage, the DB series subwoofers will fill that gap.

When it comes down to the decision, you will be happy no matter which of these car subwoofers you decide on. The TNT’s will put some bump in your trunk; while the DB’s will seamlessly fill that lower music range with quality, hard-hitting bass. Earthquake Sound has it all, so look no further.


What Car Amplifier Do I Need For My Kicker CVR Subwoofer?

Continuing on our series of What Amplifier Do I Need? this week we will be matching amplifiers to Kicker’s CVR Series Subwoofers. Kicker CVR woofers are one of the most top rated woofers in the car audio industry. They are extremely affordable and more than anything else they are dependable. These woofers can really take a beating making them a value purchase. CVR woofers are available in 8”, 10”, 12” or 15” sizes with either a Dual 4 ohm impedance or Dual 2 ohm impedance.

Kicker 10IX500.1


Kicker’s IX500.1 amplifier is the perfect amplifier for a 10CVR104, 10CVR124, or 10CVR154 subwoofer. The amplifier is rated at 500W RMS @ 2 ohms which is just what any of those subwoofers needs to perform at their peak. The subwoofer you select will have to run at a 2 ohm final impedance while wired in parallel. The amplifier’s extreme efficiency keeps it running cool during all listening sessions. Its compact design allows for easy mounting and convenient installation. The IX series is Kicker’s most efficient and reliable amplifiers and are designed to work perfectly with other Kicker products. The amplifier also features low-pass and subsonic filters for complete control of your sound reproduction.

Cerwin-Vega STEALTH500.1


If you are looking to power up a 10CVR102, 10CVR122, or a 10CVR152 subwoofer to a final impedance of 1 ohm, then look no further than Cerwin-Vega’s STEALTh500.1 monoblock amplifier. This amplifier offers a power rating of 500W RMS @ 1 ohm giving you all the power you will need. The use of a Thermal Management System, monitors internal thermal output by reducing power output when the amplifier begins to overheat. This allows the amplifier to have a continuous performance giving you uninterrupted bass reproduction. Apart from being very small Stealth amplifiers feature a full range Class D chip set that improves efficient and performance and increases reliability. It also reduces noise and filters out other sonic disturbances.

Earthquake Sound PH2000W/D1


The Earthquake Sound PH2000W/D1 amplifier is able to output 500W RMs @ 4 ohms. With this amp you can properly power up a 10CVR102, 10CVR122, or a 10CVR152 subwoofer to a final impedance of 4 ohms. At 4 ohms the amplifier and subwoofer will run to the best of their abilities and will have lower heat outputs. The Power House series amplifier features high and low-level inputs giving it the versatility to work in any car with any car system. The amplifier also offers a 5 year warranty making it almost impossible to pass up. If efficiency and high performance is important to your audio system, then this is the way to go.


Earthquake’s Subzero Series Subwoofers at Sonic Electronix

Earthquake Sound SZ-12

Every now and then you will run into a car subwoofer that will leave you in awe with its unique design and superior structure. Not only will the subwoofer be aesthetically pleasing but it will sound amazingly precise and deliver bass like you have never heard or felt before. This is exactly what will happen when you set your eyes on the 2004 CES Innovations Award winning Earthquake Sound Subzero series subwoofer. This series of subwoofers are available in a 10”, 12”, and 15” model, ranging from 750 watts to 1250 watts of RMS power handling. Just because they all look the same does not mean they all sound or are built the same. Each woofer is uniquely design and built to accommodate its respective size. The Subzero series subwoofers feature many technologies that put them a notch above the rest and give them the label of high-end subwoofer. Subzero subwoofers are set to re-define what a high-end subwoofer should look and sound like. These subwoofers will offer quality, performance, ease of use and superb constructional design that will not be easily matched by other subwoofers within the car audio industry.

Earthquake Sound SZ-12The SZ-12 is the 12” subwoofer in the Subzero series of Earthquake Sound subwoofers. The woofer has a power handling rating of 2000 watts peak and 1000 watts RMS. With that much power you really won’t need more than one, unless you really want the earth around you to shake. The first thing you will notice on this subwoofer, besides is enormous size, will be the structure. A unique precision and different angle diamond cut basket makes this subwoofer look like a million dollars and with a structure like this it is pretty impossible do deny the quality of the woofer. A metal mesh look and design at the bottom of the basket protect the magnet from any damage, keeping the 12″ subwoofer safe from flying objects. The woofer is designed with and features a paper pressed composite woofer cone with a foam composite woofer surround, as well as a sturdy polypropylene bronze dust cap. The materials allow the subwoofer to reproduce clean, efficient, and powerful bass while also giving the woofer a sense of longevity and reliability. The SZ-12 car subwoofer is also equipped with a nomax/romax spider assembly meant to assist with accurate reproduction by maintaining the single piece piston as linear as possible. The high strength and power magnet motor structure moves the 3” over-sized, flat-wire voice coil that offer more surface area which increases the overall motor strength and sound reproduction. With a subwoofer of this magnitude it is important that it remain cool, the use of Turbine Cooled Transducer (TCT) technology keeps the woofer cool and running efficiently during long or short listening sessions, making sure the woofer is giving its best at all times.

Earthquake Sound SZ-12In car audio structure, features, and technologies are really important to the make and performance of a high-quality subwoofer, but just as important is ease of use. Nothing can be more frustrating that having to mess around with the installation of your woofer. Earthquake Sound has spare no expense in making sure that their SZ-12 Subzero subwoofer is not just great performing but also that it is easy to use and offers versatility to the user. For this reason they have incorporated a Parallel Series Parallel (PSP) terminal block. The PSP gives the subwoofer unsurpassed and match versatility by allowing it to be run in a 2, 4, or 8 ohm configuration by simply switching a fuse and reconfiguring the speaker cables. These quick and simple steps make the PSP terminals the most ergonomic terminals you will ever find on any other subwoofer. The Subzero Earthquake Sound subwoofer is innovative, reliable, and will produce some of the best bass around, with its many features this subwoofer is sure way to get notice in your car audio circles.