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AMPLIFICATION COMPLICATION

So, you’re set to upgrade your car sound and start looking for amplifiers online and suddenly you a

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.

CLASS A

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.

CLASS B

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.

CLASS A/B

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.

Some of the best brands include:

CLASS D

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.

You can checkout the following:

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.

Happy Fathers Day

Cadence Audio

Just listed a bunch of new Cadence Audio! New products, cheaper prices!

Massive Audio VBD12II Package

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Massive Audio VBD12II Package

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New Orion Car Audio Equipment now on OnlineCarStereo.com!

New Orion Car Audio Equipment now on OnlineCarStereo.com

OnlineCarStereo.com has a new inventory of products from Orion Audio! We have tons of amps, woofers, speakers and accessories! More information after the jump!

http://www.onlinecarstereo.com/specials/2/0/New_Arrivals_Descending_Newest.aspx?RowIndex=0&PageNum=1&SortField=3&ShowAll=False&SortOrder=1&

 

2013 Car Audio & Video New Arrivals


We've started adding in new 2013 car audio & video products and we wanted to give you guys a heads up.

2013 is looking good and there are plenty of hot new products so hit the link to see our New Arrivals section and get your hands on this years hottest car audio and video gear.
 

Soundstream DTR1.900D Price Drop - 900W D-Tower Power Amplifier

Soundstream DTR1.900D Price Drop - 900W D-Tower Power Amplifier

Todays newly reduced car audio item is the 900W RMS Class D Monoblock D-Tower Car Audio Power Amplifier from Soundstream. Now just $149.00 with FREE shipping, get em while they're hot.

 

 



General Features:

 

  • The worlds first vertical automotive stereo amplifier
  • Gloss black finish w/ brushed accents
  • Double sided pcb w/ smd components
  • aluminum alloy heat-sink
  • Regulated mosfet pwm power supply
  • Three-way protection circuitry (thermal, short, impedance)
  • Delayed on/off circuit
  • Variable crossovers (hpf/full/lpf)
  • Variable bass boost
  • Variable subsonic filter
  • Variable phase control
  • High level input
  • Signal-to-noise ratio: 92dB
  • Damping factor: >200
  • Signal voltage: 200mV-5V
  • Harmonic distortion: 0.50%
  • Dash mounted remote gain control
  • Direct wire 4ga. Power 8ga speaker terminal
  • Dimensions: H: 7.5" x W: 3.375" x L: 11.5"

JL Audio 600/1v3 600W Slash v3 Monoblock Class D Car Audio Amp

JL Audio 600/1v3 600W Slash v3 Monoblock Class D Car Audio Amplifier

The best-selling amplifiers of all time are back in black!
The 600/1v3 deploys efficient Class D technology with a patented control circuit and JL Audio's signature R.I.P.S. power supply design to ensure full power delivery (600 W) over a wide range of load impedances and vehicle voltages.

A very complete set of signal processing features, including a parametric bass EQ and fully variable infrasonic filter, round out the package. This amplifier features an all-black look that is pure, sexy evil, including the powder-coated cast alloy heat sink and end caps.

 

 

Power Handling @ 12.5V & 14.4V

  • 600W RMS x 1 @ 4 Ohms
  • 600W RMS x 1 @ 3 Ohms
  • 600W RMS x 1 @ 2 Ohms
  • 600W RMS x 1 @ 1.5 Ohms
  • 600W Peak Power
General Features:
  • R.I.P.S. - Regulated, Intelligent Power Supply
  • Advanced Rollback Protection
  • Patented Class D Circuitry
  • RealSink
  • Frequency Response: 5 Hz - 250 Hz (+0, -1dB)
  • S/N Ratio, referred to highest rated power: >95 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
  • S/N Ratio, referred to 1 W (Main Channels): >68 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
  • Damping Factor @ 4 Ohms: >500 / 50 Hz
  • Damping Factor @ 2 Ohms: >250 / 50 Hz
  • THD+N @ Rated Power (Main Channels): <0.05% @ 4 O
  • Input Voltage Range @ RCA Inputs: 200 mV - 8 V RMS
  • Min Copper Power/Ground Wire Gauge: 4 AWG wire
  • Fuse Rating: 50 A (AFS, AGU or MaxiFuse™)
  • Filter Modes: Low-Pass only
  • Filter Slope (dB/Octave): 12 dB or 24 dB
  • Filter Frequency Range: 40-200 Hz
  • Detented, Calibrated Filter Freq. Potentiometer: Yes
  • Filter Defeatable?: Yes
  • Infrasonic Filter: Variable, Defeatable
  • Bass Boost EQ: Parametric
  • Output Polarity Switch: No
  • Remote Subwoofer Level Control: No
  • Remote Bass EQ Boost Control: Optional (RBC-1)
  • Pass-Through Preamp Output: Buffered, w/independent filter
  • Dimensions: 2.36 in / 60 mm (H) x 13.40 in / 340 mm (W) x 9.25 in / 235 mm (D)