|  Car Audio Blog

  Contact Us: 1-310-526-8635

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.

Jensen CD6112 Car Stereo CD Player with iPod Connectivity

Jensen CD6112 Car Stereo CD player with iPod Connectivity and Wireless Remote Control

The CD6112 is an In-Dash CD Receiver that enables iPod connectivity and includes a wireless remote control. An adapter allows you to connect your portable devices for an even more robust listening experience. More expandability options is possible with the Rear AUX Input, and Rear RCA Preamp Outputs.

 

 

General Features:

  • Electronic Detachable Faceplate
  • 160W Max
  • Includes Male Rca To Male 3.5Mm Media Adapter Cable
  • Adapter Allows For Quick Connectivity Of Portable Devices, Ipod, Satellite Radio, Etc.
  • Black Stn Lcd With White Led Backlighting
  • 3 Selectable Eq CurvesRock, Hip Hop & Dance
  • Rear Aux Input For External Media Connectivity, Mp3, Players, Ipod, Etc.
  • Us/European Frequency SpacingUs: Am10 Khz, Fm200 Khz
  • Europe: Am9 Khz, Fm50 Khz
  • Programmable Volume Control
  • 30-Station Presets (18 Fm/12 Am)
  • Rear Rca Preamp Outputs
  • Includes Infrared Remote


Jensen HD5313 In-Dash MP3 Receiver with Built-In HD Tuner

Jensen HD5313 In-Dash MP3 Car Stereo Receiver with Built-In HD Tuner

If you're thinking of upgrading to HD capable car stereo then the HD5313 In-Dash MP3 Receiver from Jensen would be a good choice, a powerful receiver without breaking your wallet. With the built-in HD Radio tuner, you'll be treated with high quality HD radio signals for that clean and clear reception, the good part is you don't have to subscribe or need to purchase an additional tuner. You'll also get todays standard receiver features such as a detachable face, more expandability options that enable you to plug in an iPod with the USB direct connectivity, as well as being Bluetooth ready (BT accessory sold seperately).

 

 

Power Output:

  • 60 W Peak Power
  • 18W RMS x 4 Channels
General Features:
  • In-dash AM/FM, CD, MP3, WMA player with Remote
  • Built-in HD Radio Tuner allows the reception of high quality HD Radio signals for clean and clear reception with no subscription fee or additional tuner purchase required
  • Detachable face
  • White negative LCD display
  • Blue button lighting
  • CEA-2006 compliant amplifier
Playback & Audio Features:
  • Playback of CD, CD-R, CD-RW, MP3, and WMA
  • Tuner with 18FM/12AM presets
  • 3-Band parametric equalizer with preset tone curves
  • Electronic Skip Protection (ESP) for enhance playback of CD's
Expandability Options:
  • 3 Sets of 2V preamp outputs (front, rear and subwoofer)
  • Built-in HD Radio tuner for clear radio reception and no subscription fee
  • Bluetooth ready: Jensen BTM10 required and sold separately
  • XM Satellite Radio Ready: Jensen XM Satellite Radio Solution Package required and sold separately
  • Pod USB direct connectivity via your standard iPod-to-USB connection cable allows you to charge, control, and playback your iPod through the receiver and stereo system
  • The Apple iPhone 3G, iPod Nano 4th Gen, iPod Touch 2nd Gen, and any other newly released iPods can be controlled using the iPod adapter above; however, charging will not be possible unless you purchase the Scosche IFWA PassPORT charging adapter
  • Front-panel auxiliary input: 3.5mm (headphone jack) allows connection to portable media devices such as MP3 players, etc.
  • Front-panel USB connection: USB Port allows connection to portable media devices such as flash memory support, etc.
  • Steering wheel remote ready: PAC SWI-PS required and sold separately
  • Supports up to 4 GB SD cards


Jensen VM9224 Multimedia DVD Receiver w/ 6.2" Touchscreen

Jensen VM9224 Car Stereo Multimedia DVD Receiver with 6.2" Touchscreen Display

The VM9224 car audio Multimedia DVD Receiverfrom Jensen has a 6.2" TFT LCD touchscreen display with clear and crisp video playback of DVD, AVI, MPEG1/2, and Xvid and compatible with MP3, WMA, CD, media file formats. Multi-Region DVD playback means you will be able to play video from different countries, included is a wireless remote, and expandability options such as Navigation, Bluetooth, and iPhone/iPod connectivities.

 

 

General Features:

  • Double DIN In-dash AM/FM, CD, MP3, WMA Player
  • 6.2" TFT-LCD touchscreen monitor
  • Wireless remote control included
  • CD Text Display
  • MP3 ID3 Tag Display (Title/Artist/Album)
  • Playback of MP3, WMA, AVI, MPEG 1, MPEG 2, and XviD digital media files
  • Playback of DVD-R, DVD-RW, DVD+R, DVD+RW, CD, CD-R, CD-RW, CD-DA disct formats
  • Multi-region DVD playback
  • AM/FM tuner with 18FM/12AM presets
  • 3-Band equalizer with 8 selectable tone curves (7 Preset, 1 User)
  • Navigation via Jensen NAV102 (sold separately)
  • Bluetooth via Jensen BTM10 (sold separately)
  • iPod/Phone Audio though PAC iC-USB (sold separately)
  • Axxess ASWC steering wheel remote adaptor (sold separately)
Technical Specifications:
  • WMA Playback: Yes
  • RMS Power Output: 4x13 Watts
  • Remote Control: Yes
  • Preamp Voltage: 2 volts
  • Subwoofer Preamp Outputs: Yes
  • MP3 playback: Yes
  • Maximum Power: 4x40 Watts
  • DIN: 2
  • Detachable Face: No
  • CD-R/CD-RW Compatible: Yes
  • CD Text: Yes
  • Built-in EQ: Yes
  • Bluetooth: Optional
  • Aux input: Yes
  • Audio/Video Inputs: 1
  • Display Size: 6.2 Inch
  • Front USB Input: Yes
  • Rear USB Input: No
  • Pre-amp outputs: 6
  • Audio/Video Outputs: 1


Jensen VM9424 Car Stereo Multimedia & Navigation Receiver

Jensen VM9424 Car Stereo Multimedia Navigation Receiver

If you're looking to upgrade your in-dash car stereo system then look no further than the VM9424 Multimedia Receiver with GPS Navigation. With this system you'll get a crisp and clear 6.2" touchscreen display capable of CD, DVD, MP3, WMA, AVI, MPEG 1/2, and Xvid media format playback. Includes USB port to connect iPod/iPhone and AUX Input for even more connectivity.

The VM9424 also includes a built-in GPS Navigation with many standard features such as 11 million points of interest, a Map Database, route calculation and destination arrival estimates, it also provides maps of the US, Canada, Alaska, and Hawaii.

 

 

General Features:

  • 6.2" TFT-LCD touchscreen monitor
  • Wireless remote control included
  • CD Text Display
  • MP3 ID3 Tag Display (Title/Artist/Album)
  • Playback of MP3, WMA, AVI, MPEG 1, MPEG 2, and XviD digital media files
  • Playback of DVD-R, DVD-RW, DVD+R, DVD+RW, CD, CD-R, CD-RW, CD-DA disct formats
  • Multi-region DVD playback
  • AM/FM tuner with 18FM/12AM presets
  • 3-Band equalizer with 8 selectable tone curves (7 Preset, 1 User)
  • 92,000Hz digital-to-analog converter with a multi-bit Sigma-Delta modulator
  • Start volume feature allows headunit to begin volume at the last adjustment that was made when unit was turned off
  • Bluetooth via Jensen BTM10 (sold separately)
  • iPod/Phone Audio though PAC iC-USB (sold separately)
  • Axxess ASWC steering wheel remote adaptor (sold separately)
  • MediaLink allows for a 3.5 mm head phone jack
Navigation Features:
  • GPS navigation included for reliable guidance
  • 11 million points of interest for finding your favorite restaurants, hotels, gas stations, and other destinations
  • Reliable map database by Tele Atlas
  • Choose between Day (bright background) and Night (dark background) color mode displays for greater visibility
  • Route preference feature enables you to determine how to calculate your destination by shortest/fastest time, avoiding freeways, avoiding toll roads, or using ferry travel
  • Automatic reroute feature gives alternate route if street or off ramp is missed
  • Trip computer feature conveniently lists your speed, trip timing, elevation, odometer, and clock readings
  • Maps preloaded on a flash based 2 GB SD card for fast access
  • Simple map updating by replacing SD card with most current version
  • Provides maps of United States, Canada, Alaska, and Hawaii
  • Features route calculation and destination arrival estimates