Quote:
Originally Posted by ontopofm
I have alpine mrp-m500 and logic 7
|
The Logic7 puts out some 16V max (70W max at 4 ohms) at the underseat woofers inputs, a level that this MRP-M500 is not clear that it can accept for the long term and at sustained high volume levels; its owner's manual does not specify the speaker max high level input, only that it accepts HU "high power and standard power levels".
An aftermarket HU "high power" is commonly 40W-50W max; the Logic7 OEM amp output is 70W max to each underseat woofer.
This is a problem that I've been noticing for some time, so I started recommending a passive or active LOC of at least 100W handling rating before any sub amp for Logic7 and Premium Audio (M3; at least 200W handling rating) systems for long term reliability.