Stereo signals from sources such as tuners, cassette decks, CD/SACD players and players are adapted to the requirements of the power amplifier or power stage input interface. Power amplifiers are the basic module of any integrated amplifier, which is why they are sometimes also referred to as integrated amplifiers.
However, power amplifiers are also often offered as separate components in a separate enclosure. These individual preamplifier and amplifier combinations are intended to prevent interference, which can also come from optimally damped power amplifiers, from entering highly sensitive preamplifier signals.
For the same reason, monoblocks are often used as power amplifiers, i.e. as separate power amplifiers in a separate enclosure for each channel. In this case, it is important that powerful power stages do not influence each other through interference signals.
How do I find the right power amplifier?
2-channel amplifier
If you only want to increase the power of a front speaker system, for example, use a 2-channel power amplifier that can also have slightly higher power than your existing system. However, always consult an expert for information and advice to avoid overvoltage and interference. If you have a speaker with a specific power rating of approx. 75 watts, you can generally combine it with a power amplifier of up to 100 watts per channel. This ensures that the signal quality is at least as good as the speaker's power limit and that the signal is not interrupted when the amplifier is working at its limit.
A more powerful power stage also provides better dynamics and gives you goosebumps when you listen to a piece of music and feel as if you were there live
4-channel amplifier
If you have new front speakers and want to add a subwoofer, we recommend adding a 4-channel power amplifier so that you can drive the 2-channel front speakers and then connect the subwoofer (bridged) to the other 2 channels. This 4-channel amplifier therefore contains all the necessary system components and you only need to install one device.
Multi-channel amplifier
If you want to use the front plate system, the rear plate system and the optional subwoofer, we recommend using a multi-channel power amplifier. These 6 channels allow you to connect all speakers to one amplifier (easier to install than 2 amps).
Subwoofer monoblock
The monoblock is specially designed to work with the subwoofer. In most cases, these amplifiers have a particularly high damping factor (good subwoofer control and tight bass) as well as more power for the subwoofer. This 1-channel power amplifier is designed only for the subwoofer.
Use of a 4-channel power amplifier and a monoblock
If you use a subwoofer that consumes a lot of power and requires more power than a normal mid/tweeter, you generally only have one option, to install two power stages.
The four-channel power amplifier now drives the front and rear system, and the monoblock unit drives the subwoofer with the correspondingly higher power. For advanced systems, we recommend installing a power capacitor/sensor to ensure a stable power supply that optimally absorbs the surge current drawn by the amplifiers. This allows the power amplifier to receive full power and a clean signal to keep the sounds clean and bright.
