Single - channel power amplifiers for a car are sometimes called subwoofer monoblocks. They are designed specifically for connecting multiple subwoofers.
Monoblocks have some distinctive features related to the scope of their application, and are widely popular.
Features of single-channel amplifiers
Many motorists want to buy a monoblock, since it has the following features and advantages.
- Firstly, these are monophonic amplifiers. When you feed them a stereo / mono signal from the radio, which is collected in the amplifier, you get a mono signal through the subwoofer at the output.
- Secondly, single-channel amplifiers have a fairly high power. At 4 ohms load, the power per channel is from 150 watts.
- Thirdly, in such subwoofer amplifiers, there is a mandatory high-pass filter that cuts off all frequencies that are higher than the filter settings frequency. And this is a prerequisite for connecting a subwoofer.
- Fourthly, in monoblocks often there is a so-called sabsonik filter, which cuts off ultra-low frequencies from a musical signal. This is quite an important thing, since getting into the subwoofer of extra low frequencies can lead to its malfunction.
Well-known manufacturers
Alpine is well known in many countries. The amp models it produces are compact in size and deliver high-quality sound. Alpine's digital broadband all-in-ones are in high demand.
The Audison brand presents monoblocks for Hi-End class machines, which are distinguished by detailed sound reproduction and high power. The manufacturer attached a certificate of conformity to the device, which confirms the characteristics of all these parameters.
Monoblocks of the Korean company Kicx are represented by many models with different capabilities, price and functionality. This brand is a leader in the production of car amplifiers, speakers, subwoofers, cable products and components.
Choose a candy bar
Single-channel power amplifiers have many parameters and characteristics that must be considered when choosing. The most important of them are:
- amplifier class;
- subwoofer power;
- maximum load on the amplifier;
- minimum system resistance.
Most of the monoblocks on the market are classified as class D. They have a higher power and smaller size than A / B devices, in addition, they heat up significantly less. But at the same time, the sound from class D single-channel amplifiers is slightly inferior to the A / B analogs in sound quality. Although if the signal is fed to a subwoofer, then there is no difference in quality.
Prices for monoblocks of class A / B are lower, which is why they are a budget option.
Next, we offer an overview of single-channel power amplifiers of the most popular models with their technical characteristics.
Kicx AD 1.400
At the highest efficiency, the all-digital circuitry of this monoblock allows you to get from miniature amplifiers up to 360 watts of power for a four-channel amplifier and 650 watts for a subwoofer model. This single-channel amplifier for the Kicks subwoofer is from a series of cost-effective, broadband and ultra-compact Class D devices.
Specifications:
- amplifier class - D;
- dimensions - 170 x 46 x 323 mm;
- range of reproduced frequencies - 15 Hz-130 Hz;
- signal-to-noise ratio -> 100 dB;
- sabsonik - 10-50 Hz / 12 dB;
- LEDs - red fault indicator.
Alpine PDR-M65
The new single-channel amplifiers of the PDR series have a completely new design, which is characterized by excellent sound quality, high performance and excellent reliability. This digital monaural amplifier has dual internal error correction technology. Now the input signal is first analyzed, then compared and corrected twice.
This monoblock uses a separate circuit for multi-stage power management. It constantly monitors the criticality of the temperature of the components throughout the amplifier and, if necessary, reduces the output power.
This amplifier has amazingly clear and unpainted sound.
- Maximum power - 1300 watts.
- Rated power - 450 watts.
- The frequency range is from 8 to 400 Hz.
- Amplifier class - D;
- Dimensions - 229 x 165 x 51 cm.
Hot sale
The Pioneer GM-D8601 single-channel car amplifier with remote control does not take up much space in the car. This Class D amplifier combines a low output impedance of 1 ohm with a stable circuit, surprisingly good output power and installation flexibility.
- Rated power (4 ohms) - 300 watts.
- Channel power - 300 watts.
- Frequency range: 10-240 Hz.
- Dimensions: 265 x 200 x 60 mm.
- Maximum power - 1600 watts.
Audison AP 1D Prima
Extremely compact single-channel amplifier, which is primarily intended for joint inclusion with models equipped with Prima series audio processor.
Monoblock has high power despite its miniature size. Setting up the synchronization functions of the amplifier is carried out entirely by the integrated 9-channel processor.
All amplifiers of this series, regardless of the number of channels, have the same dimensions and can be installed in a single vertical array on top of each other.
- Dimensions: 198 x 134 x 46 mm.
- Maximum power - 540 watts.
- Channel 1 power (4 Ohms) - 310 watts.
- Manufacturer: Italy.