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Junior Varsity
iNuke nu3000DSP outputs when in bridged mode
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<blockquote data-quote="Ron Kimball" data-source="post: 141172" data-attributes="member: 405"><p>Re: iNuke nu3000DSP outputs when in bridged mode</p><p></p><p>From German magazine tests of the NU3000:</p><p></p><p>Peak power 20ms/1000Hz</p><p>8 Ohm 2x465</p><p>4 Ohm 2x870</p><p>2 Ohm 2x1700</p><p></p><p>RMS (sine wave)</p><p>8 Ohm 2x312</p><p>4 Ohm 2x600 (2x375 after 3 seconds)</p><p>2 Ohm 2x1176 (2x750 after 1 second, protect after 5 seconds)</p><p></p><p>So - bridged into two 8 ohm cabs the real spec is:</p><p>1176wrms each (limited to 750wrms each after 1 second, protect after 5 seconds)</p><p>which is why I'm not particularly concerned with the amp frying my 700wrms rated TH-Mini's. I've never had it go into protect or even limit back AFAIK. As I implied the biggest concern is overexcursion and a HPF set properly (and not overridden by bass boost in the EQ's) will protect against that. If bridging in your case I'd set the HPF to 40 as steep as possible (24db/oct?) and limit at 800w. I'd then not push it past 3-6dB of limiting.</p><p></p><p>In the past I've run PV118's (300wrms drivers) on an unbridged RMX2450 (500w/driver) into 3-6dB of limiting no prob. Same voicecoil diameter as the Sigma's - not sure I really believe their 650w rating - YMMV <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> .</p></blockquote><p></p>
[QUOTE="Ron Kimball, post: 141172, member: 405"] Re: iNuke nu3000DSP outputs when in bridged mode From German magazine tests of the NU3000: Peak power 20ms/1000Hz 8 Ohm 2x465 4 Ohm 2x870 2 Ohm 2x1700 RMS (sine wave) 8 Ohm 2x312 4 Ohm 2x600 (2x375 after 3 seconds) 2 Ohm 2x1176 (2x750 after 1 second, protect after 5 seconds) So - bridged into two 8 ohm cabs the real spec is: 1176wrms each (limited to 750wrms each after 1 second, protect after 5 seconds) which is why I'm not particularly concerned with the amp frying my 700wrms rated TH-Mini's. I've never had it go into protect or even limit back AFAIK. As I implied the biggest concern is overexcursion and a HPF set properly (and not overridden by bass boost in the EQ's) will protect against that. If bridging in your case I'd set the HPF to 40 as steep as possible (24db/oct?) and limit at 800w. I'd then not push it past 3-6dB of limiting. In the past I've run PV118's (300wrms drivers) on an unbridged RMX2450 (500w/driver) into 3-6dB of limiting no prob. Same voicecoil diameter as the Sigma's - not sure I really believe their 650w rating - YMMV ;) . [/QUOTE]
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