Mmmmk I've owned two raa2400's and one raa1000. The raa1000 "clicked" when it powered down. My latter raa2400 produced an adible "snap" in the tweets when powered up, and a "thud" when powered off. My current raa2400 doesn't say anything to me except "thank you for letting me power your speakers master"
The raa1000 is 1 ohm stable and will kill your sub! Not literaly speaking of course.
The raa2400 does 800x1 @4. I ran my Arc 12D4 at 8 ohms off it and it performed like a champ.
The Reference series, pop, click, thud, or whatever sounds it makes are less of an issue then they are made out to be. Annoying, YES!! But very good for the money. Especially with the features they offer and the power they put out, they are tough to beat!
The Q series are in a class by themselves. As the reviewer on the DYI forum said they are in the Audison LRx, Zapco studio and US Amps line of performance.
Too much power???? Is that even possible:up2somet: We shall see when I get my QAA4250 in later this week
Oh and by the way, I have an 80 amp alt
:
Check this out:
MB Quart QAA4250 test results from CA&E January 2005 issue
MB Quart QAA4250 test results from Car Audio and Electronics January 2005 issue.
Output power @ 1%THD, 1kHz, 14.4 volts
Stereo @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 276 watts
Stereo @ 2 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 294 watts
Bridged @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 529 watts rear channels)
Output power @ 1%THD, 1kHz, 12.5 volts
Stereo @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 x 270 watts
Stereo @ 2 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 288 watts
Bridged @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 522 watts (rear channels)
Distortion at rated power, 1kHz, 14.4 volts . . . . . . . . . . . . . . . . . . .0.45% @ 4 ohms
Input sensitivity, "Low" setting . . . . . . . . . . . . . . . . . . . . . . . . . . .260mV to 2.4 volts
Input sensitivity, "High" setting . . . . . . . . . . . . . . . . . . . . . . 2.3V to 21 volts
Input sensitivity, Front End Bypassed . . . . . . . . . . . . . . . . . . . . . . . . 2.4 volts
Frequency Response ( + 1dB) . . . . . . . . . . . . . . . . . . . . . . 7Hz - beyond 48kHz
S/N Ratio (A weighted, below clipping, min. gain) . . . . . . . . . . . . . . . . . . . . . >89dB
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V/mS
Damping Factor @ 100Hz, 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>100
Idle Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 amps
Maximum current consumption, unclipped . . . . . . . . . .104 amps @ 1,053 watts
Efficiency at 1/3rd power, lowest impedance . . . . . . . . . . . . . . . . . . . . . . 32%
Efficiency at full power, 1% THD, lowest impedance . . . . . . . . . . . . . . . . 67%
Crossover slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12dB/octave
Crossover range, lowpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Hz - 5,156Hz
Crossover range, highpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52Hz - 4,875Hz
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 1/4"L x 11 3/4"W x 3 7/8"H
