The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.
Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.
Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.
Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.
RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.
The RMS output figure is much more accurate than the peak rating when comparing products.
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.
Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.
Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
250 Watt RMS Single 8" 8W3v3 Amplified Subwoofer Loaded in a Slot-Ported MicroSub Enclosure
• 250W Single 8" Vented Subwoofer Enclosure with Built-In Amplifier • 8" W3v3 Series Subwoofer(s) • Built-in DCD Class D amplifier • CNC-Cut High-Grade MDFConstruction w/ high-grade automotive carpet • Enclosure Dimensions: 5.125" D x 18.500" W x 11.125" H
• 250W Single 8" Vented Subwoofer Enclosure with Built-In Amplifier • 8" W3v3 Series Subwoofer(s) • Built-in DCD Class D amplifier • CNC-Cut High-Grade MDFConstruction w/ high-grade automotive carpet • Enclosure Dimensions: 5.125" D x 18.500" W x 11.125" H
2000W Max (1000W RMS) Dual 12” Pre-loaded High-Power Subwoofer Enclosure
• 1000 W RMS Dual 12" Vented Subwoofer Enclosure
• Polypropylene cone with "dual area" cap
• Single voice coil
• Enclosure Dimensions: 12-1/2" TD x 15-3/4" BD x 35-3/4" W x 15-7/8" H
• 1000 W RMS Dual 12" Vented Subwoofer Enclosure
• Polypropylene cone with "dual area" cap
• Single voice coil
• Enclosure Dimensions: 12-1/2" TD x 15-3/4" BD x 35-3/4" W x 15-7/8" H
1000W RMS Punch Series 5-Channel Stereo Full-Range Class BD Car Amplifier w/ Dedicated Sub Channel
• 75W x 4 Chan. + 200W x Sub Chan. @ 4 ohms • 100W x 4 Chan. + 400W Sub Chan. @ 2 ohms • 100W x 5 Chan. RMS • Built In NOMAD "Real Time" Analog Computer • 5/4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • MESHA3 Reduces MOSFET Temperatures for Improved Durability
• 75W x 4 Chan. + 200W x Sub Chan. @ 4 ohms • 100W x 4 Chan. + 400W Sub Chan. @ 2 ohms • 100W x 5 Chan. RMS • Built In NOMAD "Real Time" Analog Computer • 5/4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • MESHA3 Reduces MOSFET Temperatures for Improved Durability
600W Max (300W RMS) Single 12” Pre-loaded Subwoofer Enclosure
• 600W Max (300W RMS) Pre-loaded 12" Vented Subwoofer Enclosure • Polypropylene Cone with Diamond Array Pattern Woofer Enclosure Dimensions: 11-3/8” D x 20-7/8” W x 15-13/16" H
• 600W Max (300W RMS) Pre-loaded 12" Vented Subwoofer Enclosure • Polypropylene Cone with Diamond Array Pattern Woofer Enclosure Dimensions: 11-3/8” D x 20-7/8” W x 15-13/16" H
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