[Aaron@Autosource]

Anyone know, or even an approximate guess? Reason why I ask is I just found an amp Ive had for a while, completely forgot about it. I'm temped to amp the stock speakers or maybe just the subs.

Def overkill and shouldnt bother?


Specs via SonicElextronix-
http://www.sonicelectronix.com/item_...-MRV-F545.html


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
125 watts x 4 channels
RMS Power @ 2 ohms
250 watts x 2 chan. (3/4 Only)
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
500 watts x 1 chan. (3/4 Only)
Total RMS Power Output
500 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
4 ohms (Ch. 1/2), 2 ohms (Ch. 3/4)
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.3%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency
30 - 400 Hz, 600 - 8000 Hz
Low-Pass Crossover Frequency
30 - 400 Hz, 600 - 8000 Hz
Signal-to-Noise Ratio
93 dB

[Aaron@Autosource]

Anyone?

[Aaron@Autosource]

Has anyone even amped the 676 speakers before?

[Arthurrs]

I don't think this would be much different than the power available with the bimmertech power amp upgrade that many here do. The bigger issue is getting a wiring harness to adapt this amp into the BMW wiring harness. Obviously don't overdrive the speakers, if you hear some "crackling" noises, then obviously you have the volume to high. But otherwise, there's no harm in using an amplifier with a higher rated power output as long as you don't crank things to "11" all the time.

[Kabrich]

A lot of Clean power can go to decent speakers with no damage. The issue is clipping will destroy the speakers quickly - and most amps get into clipping rather easily.