In this post, I will cover the topic of tweaking the sound quality of your speakers. However, this topic is rather complex and I will not be able to get into much detail. Instead I’m going to focus on some basic techniques which are easy to implement.
First of all, the speakers have to be set up properly. That means they should be placed on a stable surface which doesn’t vibrate. If you don’t have a stable surface or a surface which is not very hard then you might want to purchase some special speaker spikes which are usually mounted at the bottom of speakers that reduce the amount of vibrations. You can also use a blanket made out of felt which is place underneath the speaker. This will dampen the vibrations of the speaker enclosure to prevent those vibrations to be transferred on to the basement.
Locate the speakers such that the front of each speaker is facing towards the area that you will usually listen. High-frequency components usually travel into one specific direction. That is why it is important that the front of the speaker is located properly. However, low frequencies are less critical. That means if you are setting up a subwoofer for example you can usually set it up anywhere within the room. Also, keep the sound away from highly reflective walls. Walls can actually change the sound of the speaker tremendously.
Once you have optimized the positioning of the speakers it is time to tweak with the amplifier. Specific models of audio amplifiers have settings which optimized for different impedances. Ideally, the output impedance of the amplifier should match the speaker impedance. You can find the speaker impedance by reading the label which is located somewhere on the enclosure. Typical impedances include four and 8 ohms.
If you still don’t get decent sound quality then you can tweak the frequency response of your amplifier by changing the settings. If the amplifier doesn’t allow changing of the frequency response you might need an external equalizer. If you stream from a smart phone or other modern device you might be able to download an equalizer application that is located on your phone. Having an equalizer app, you can tweak with the settings to optimize performance of the speakers. I highly recommend using a soundtrack which you are familiar with as a reference.