Quote:
Originally Posted by Technic
Micah... this is the Stereo system, not the HiFi. The 6.5" woofers are connected in parallel to that single mid. Adding a tweeter to the mid will make 3 speakers connected in parallel, thus increasing the load/decreasing the impedance unless something is done with the woofer.
The iDrive unit can handle 2ohms according to BMW. Less than that and the unit will overheat.
This has to be done the right way.
|
Sorry for the ridiculous delay in response. Crazy busy over the last couple of months.
In any case, that's just not true from a practical standpoint.
Impedance with a speaker isn't fixed. It's dynamic, i.e. based on the frequency a speaker is playing. Nominal impedance is just a rating / estimate given by manufacturers and only loosely represents the actual resistance behavior of a speaker.
A tweeter placed in parallel as described above doesn't appreciably change the impedance load seen by the amplifier, especially with an in-line capacitor (which dramatically increases impedance below a certain frequency range). Given that the impedance characteristics of virtually all speakers are that they rise rapidly with frequency increases, the real load seen by the amp would remain essentially unchanged when adding a tweeter in this context.