Great speakers, even though they are only 65 Hz... they have great bass (we will explain below)!!
So, to clarify something... speakers do not produce sound, speakers reproduce sound that is given to them by the radio... a weak radio... no matter if you put 500-watt speakers, you will drown it... it will only reach its maximum potential... about 1/3, then it will start to distort... if you exceed that, it won't play at all... also, look at the RMS, not the peak... here it shows a peak of 120 watts... the formula RMS = 0.707 x peak power applies... so these speakers produce 84.84 RMS... my radio delivers 4 x 60-watt RMS, so we're good... Even up to 90 and 100 RMS (which is still 1/3), the difference is small and the speaker can handle it without trembling (at least noticeably)... always pay attention to the speakers' wattage compared to the radio's (where does it say it? in the specs, manual, or internet of the radio model), but as we said, the difference is small (ideally up to 1/3 watt RMS)... also, we only measure in RMS (continuous sound transmission) and not peak power (maximum sound capability)... now, what are the paths... a two-way speaker has one bass for the lows (and sometimes midrange) and one tweeter for the highs... a three-way speaker, like this one (let's say four-way because it has two identical tweeters), has one bass (low), one midrange (mid), and one tweeter for the highs... then we have a four-way speaker with one bass (low), one midrange (mid), one tweeter (high), and one super tweeter (even higher)... with the four-way speaker, you hear the maximum resolution, more frequencies, and depth of sound, with the three-way less obviously, and with the two-way even less obviously... also, 84.84-watt RMS is very powerful, as long as you have a radio with 4 x 60 RMS as we mentioned (the 4 symbolizes the number of speakers that can be connected and the 60 represents the RMS wattage it can produce individually)... now, let's talk about the hertz... they symbolize the sound spectrum... the lower the hertz, the stronger the bass you will hear, and the higher the hertz, the stronger the treble (the thin sound, the chirping)... for example, a speaker with a frequency of 20 Hz - 20,000 Hz has stronger bass than an 85 Hz - 25,000 Hz, but the 25,000 Hz has stronger treble than the 20,000 Hz... also, a heavier magnet produces better sound (usually indicated in oz), and the resistance, if indicated, also plays a role... the lower the resistance, the better it will play, for example, a 4-ohm speaker will play better than a similar 8-ohm speaker... also, the size of the cone matters... the larger it is, the cleaner sound you will hear... also, decibels represent the power of the speaker, I assume you all know what that is... this one has 89, so it's good...