So, you’re set to upgrade your car sound and start looking for amplifiers online and suddenly you are confused on what class you’re getting. “Class?” Is there such thing? Apparently yes, and to make easy for you to choose the appropriate amp for your setup, we’ll try to explain common amplifier classes as simple as possible.
This is the simplest form of amplifier. When you drive input signal from your source (stereo), the exact amount of output is reproduced therefore there is no clipping or distortion on the output (sound). In many ways, this class of amplifier produces the best sound but due to the transistors being always “on” and current continuously running, this creates extreme heat which is not ideal for car audio.
This class of amplifiers are slightly different. There are two devices that are built-in and conducts alternating current to amplify both sides (half of each) of the wave cycle. This dramatically increases efficiency of theoretically about 80% compared with Class A. The only disadvantage of this is that since the transistors only amplifies half of each side of the waveform, it tends to produce distortion and results in low audio fidelity.
These amps are a combination of both the Class A and B amplifiers. The transistors are continuously flowing current through but utilize a circuitry that reduces the flow of current when there is no signal present. As a result, there is a higher degree of efficiency compared to a Class A, and less distortion as to a Class B. With this system, the Class A/B amplifiers are the most common form of full range car audio amplifiers.
Among the amplifier classes, Class D is the only “switched” amp commonly used in car audio systems. It is different because unlike Class A, B and A/B; which are analog, Class D operate by quickly switching the current through the transistor on and off. By utilizing this, it creates a pulse-like input signal. Although The Class D amplifiers are indeed more efficient that the three classes, the pulsated signal somewhat creates a small amount of distortion particularly in the higher frequencies. To minimize this, you often use a low-pass filter. Various manufacturers already adapted in using the class D for mono subwoofer amplifiers, but many others are also picking up the benefits of power and size and implementing it on full range speakers as well.
So, now that you are equipped with some basic knowledge of amplifiers, the question now is what class suits your taste. The basic rule of thumb is that Class A/B amplifiers are best for full range and mostly component speakers, while Class D amps are better suited for subwoofer drivers. You can experiment with different brands and classes to really find the sound you are looking for but with this basic template, you’ll be on the right track.
All products mentioned in this blog are available at Onlinecarstereo.com with excellent and competitive prices on our special offers. Just click on the links and and happy shopping.
You might be wondering what's the advantage of Square subwoofers..well, compared to the traditional rounded subs, square subwoofers have more cone area which translates to greater sound pressure being produced!
- Kicker S12L7 12" 1500 Watt L7 Subwoofer Dual 2 Ohm (08S12L72)
- 12" Solo-Baric L7 Series Subwoofer
- Power Handling:
- Peak: 1500 watts
- RMS: 750 watts
- Titanium deposit impregnated cone woofer with rolled outer edge
- Santoprene rubber surround
- Full coverage back bracing
- Poly-cotton semi-progressive spider
- Spiralead tinsel-lead technology
- Highly-efficient UniPlate pole-piece/back plate
- Heat-reducing T-cut top plate
- Solid pole piece
- Cast-aluminum basket
- Spring loaded terminals
- High-temp dual 2 ohm voice coil
- Frequency response: 20-100 Hz
- Sensitivity: 89 dB
- Mounting depth: 6-11/16"
Available in our store now are the 10 inch and the 12 inch models. Check them out!
The COMPVT Series of Component Car Subwoofer Drivers from Kicker are available in a Single Voice Coil 8" 8 Ohm, 10" 4-8 Ohms, 12" 8 Ohm, and 15" 8 Ohm. This line of subwoofer drivers will give your system a tremendous bass boost that you're to surely hear and feel the power without crashing your wallet.
Featuring a flex-resistant polypropylene cone with 360-degree back bracing for each model that enables hard hitting lows without any distortion. Your investment is covered and protected with double stitching, tough steel basket to help carry the big bass while all at the same time features an extensive venting system that'll surely maintain a long lasting performance.
General Features of COMPVT Series Component Car Subwoofer Drivers:
- Best-sounding, loudest bass for the buck
- Super-rigid, injection-molded cone with 360-degree back bracing
- High-temp coil wire
- Vented pole piece for heat dissipation
- Strong steel basket with coil-cooling perimeter venting
- Ribbed surround for strength at high excursion
- Durable Spiralead tinsel leads
- Tough, yellow double-stitching on surround
- Handy spring-loaded terminals
Available COMPVT Series Models:
The new Kicker ZX series car amplifiers are here!
Kicker isone of the most popular car audio brands around today and the ZX series caramplifiers are one of the biggest reasons that. ZX series amplifiers are known acrossthe nation for killer performance and high dependability. Each amplifier issold with a “Birth Certificate” which gives you an accurate manufacturing dateas well as the actual tested power output of your particular amplifier which isalways higher than published RMS output.
Currently in stock ZX Series car amplifiers
Mono Car Subwoofer Amplifiers
2-Channel (Stereo) Car Amplifiers
Multi-Channel Car (System) Amplifiers