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MB quart amps?
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<blockquote data-quote="FoxPro5" data-source="post: 1423614" data-attributes="member: 562649"><p>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"<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>The raa1000 is 1 ohm stable and will kill your sub! Not literaly speaking of course.</p><p></p><p>The raa2400 does 800x1 @4. I ran my Arc 12D4 at 8 ohms off it and it performed like a champ.</p><p></p><p>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!</p><p></p><p>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.</p><p></p><p>Too much power???? Is that even possible:up2somet: We shall see when I get my QAA4250 in later this week<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /> Oh and by the way, I have an 80 amp alt<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue :p" loading="lazy" data-shortname=":p" />:</p><p></p><p>Check this out:</p><p></p><p><strong><span style="font-family: 'Verdana'">MB Quart QAA4250 test results from CA&amp;E January 2005 issue</span></strong></p><p></p><p><span style="font-family: 'Arial'"> </span></p><p></p><p><span style="font-family: 'Arial'">MB Quart QAA4250 test results from Car Audio and Electronics January 2005 issue.</span></p><p></p><p><span style="font-family: 'Arial'"> </span></p><p></p><p><span style="font-family: 'Arial'">Output power @ 1%THD, 1kHz, 14.4 volts</span></p><p></p><p><span style="font-family: 'Arial'">Stereo @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 276 watts</span></p><p></p><p><span style="font-family: 'Arial'">Stereo @ 2 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 294 watts</span></p><p></p><p><span style="font-family: 'Arial'">Bridged @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 529 watts rear channels)</span></p><p></p><p><span style="font-family: 'Arial'"> </span></p><p></p><p><span style="font-family: 'Arial'">Output power @ 1%THD, 1kHz, 12.5 volts</span></p><p></p><p><span style="font-family: 'Arial'">Stereo @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 x 270 watts</span></p><p></p><p><span style="font-family: 'Arial'">Stereo @ 2 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 288 watts</span></p><p></p><p><span style="font-family: 'Arial'">Bridged @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 522 watts (rear channels)</span></p><p></p><p><span style="font-family: 'Arial'"> </span></p><p></p><p><span style="font-family: 'Arial'">Distortion at rated power, 1kHz, 14.4 volts . . . . . . . . . . . . . . . . . . .0.45% @ 4 ohms</span></p><p></p><p><span style="font-family: 'Arial'">Input sensitivity, "Low" setting . . . . . . . . . . . . . . . . . . . . . . . . . . .260mV to 2.4 volts</span></p><p></p><p><span style="font-family: 'Arial'">Input sensitivity, "High" setting . . . . . . . . . . . . . . . . . . . . . . 2.3V to 21 volts</span></p><p></p><p><span style="font-family: 'Arial'">Input sensitivity, Front End Bypassed . . . . . . . . . . . . . . . . . . . . . . . . 2.4 volts</span></p><p></p><p><span style="font-family: 'Arial'">Frequency Response ( + 1dB) . . . . . . . . . . . . . . . . . . . . . . 7Hz - beyond 48kHz</span></p><p></p><p><span style="font-family: 'Arial'">S/N Ratio (A weighted, below clipping, min. gain) . . . . . . . . . . . . . . . . . . . . . &gt;89dB</span></p><p></p><p><span style="font-family: 'Arial'">Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V/mS</span></p><p></p><p><span style="font-family: 'Arial'">Damping Factor @ 100Hz, 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .&gt;100</span></p><p></p><p><span style="font-family: 'Arial'">Idle Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 amps</span></p><p></p><p><span style="font-family: 'Arial'">Maximum current consumption, unclipped . . . . . . . . . .104 amps @ 1,053 watts</span></p><p></p><p><span style="font-family: 'Arial'">Efficiency at 1/3rd power, lowest impedance . . . . . . . . . . . . . . . . . . . . . . 32%</span></p><p></p><p><span style="font-family: 'Arial'">Efficiency at full power, 1% THD, lowest impedance . . . . . . . . . . . . . . . . 67%</span></p><p></p><p><span style="font-family: 'Arial'">Crossover slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12dB/octave</span></p><p></p><p><span style="font-family: 'Arial'">Crossover range, lowpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Hz - 5,156Hz</span></p><p></p><p><span style="font-family: 'Arial'">Crossover range, highpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52Hz - 4,875Hz</span></p><p></p><p><span style="font-family: 'Arial'">Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 1/4"L x 11 3/4"W x 3 7/8"H</span></p></blockquote><p></p>
[QUOTE="FoxPro5, post: 1423614, member: 562649"] 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":D 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:D Oh and by the way, I have an 80 amp alt:p: Check this out: [B][FONT=Verdana]MB Quart QAA4250 test results from CA&E January 2005 issue[/FONT][/B] [FONT=Arial] [/FONT] [FONT=Arial]MB Quart QAA4250 test results from Car Audio and Electronics January 2005 issue.[/FONT] [FONT=Arial] [/FONT] [FONT=Arial]Output power @ 1%THD, 1kHz, 14.4 volts[/FONT] [FONT=Arial]Stereo @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 276 watts[/FONT] [FONT=Arial]Stereo @ 2 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 294 watts[/FONT] [FONT=Arial]Bridged @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 529 watts rear channels)[/FONT] [FONT=Arial] [/FONT] [FONT=Arial]Output power @ 1%THD, 1kHz, 12.5 volts[/FONT] [FONT=Arial]Stereo @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 x 270 watts[/FONT] [FONT=Arial]Stereo @ 2 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 288 watts[/FONT] [FONT=Arial]Bridged @ 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 522 watts (rear channels)[/FONT] [FONT=Arial] [/FONT] [FONT=Arial]Distortion at rated power, 1kHz, 14.4 volts . . . . . . . . . . . . . . . . . . .0.45% @ 4 ohms[/FONT] [FONT=Arial]Input sensitivity, "Low" setting . . . . . . . . . . . . . . . . . . . . . . . . . . .260mV to 2.4 volts[/FONT] [FONT=Arial]Input sensitivity, "High" setting . . . . . . . . . . . . . . . . . . . . . . 2.3V to 21 volts[/FONT] [FONT=Arial]Input sensitivity, Front End Bypassed . . . . . . . . . . . . . . . . . . . . . . . . 2.4 volts[/FONT] [FONT=Arial]Frequency Response ( + 1dB) . . . . . . . . . . . . . . . . . . . . . . 7Hz - beyond 48kHz[/FONT] [FONT=Arial]S/N Ratio (A weighted, below clipping, min. gain) . . . . . . . . . . . . . . . . . . . . . >89dB[/FONT] [FONT=Arial]Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V/mS[/FONT] [FONT=Arial]Damping Factor @ 100Hz, 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>100[/FONT] [FONT=Arial]Idle Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 amps[/FONT] [FONT=Arial]Maximum current consumption, unclipped . . . . . . . . . .104 amps @ 1,053 watts[/FONT] [FONT=Arial]Efficiency at 1/3rd power, lowest impedance . . . . . . . . . . . . . . . . . . . . . . 32%[/FONT] [FONT=Arial]Efficiency at full power, 1% THD, lowest impedance . . . . . . . . . . . . . . . . 67%[/FONT] [FONT=Arial]Crossover slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12dB/octave[/FONT] [FONT=Arial]Crossover range, lowpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Hz - 5,156Hz[/FONT] [FONT=Arial]Crossover range, highpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52Hz - 4,875Hz[/FONT] [FONT=Arial]Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 1/4"L x 11 3/4"W x 3 7/8"H[/FONT] [/QUOTE]
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