The RMS (Root Mean Square) value for door speakers is an important specification that indicates the continuous power handling capability of the speaker. A suitable RMS power rating for door speakers depends on various factors, including the overall audio system setup, the amplifier's power output, and the specific speakers' design.
As a general guideline, a good RMS power rating for door speakers is typically in the range of 50 to 100 watts RMS per speaker. This range provides a balance between delivering good sound quality and ensuring the speakers can handle enough power to produce clear and loud audio without distortion. Keep in mind that this is a general guideline, and it's essential to consider other factors like the speaker's sensitivity, impedance, and the type of music you listen to.
If you plan to use an external amplifier to power your door speakers, make sure the amplifier's RMS power output matches or is slightly higher than the RMS power handling of the speakers for optimal performance. It's always better to slightly overrate the amplifier than to underpower the speakers, as underpowering can lead to distortion and potential damage to the speakers over time.
In any case, it's a good idea to consult with a knowledgeable car audio specialist or refer to the manufacturer's specifications for the specific door speakers you are considering to ensure compatibility and optimal performance within your audio setup.