airofu Posted October 2, 2019 Report Share Posted October 2, 2019 If I have a subwoofer that is 600rms rated 1200w peak - but an amp that can do 1500rms, what should I set my max output too on the amp for this sub? I get having a bigger amp gives me more headroom and less likely to distort as it won't max out as would be this case, but do I still set the amp as max output for the rated 600rms? I read about 50% more....but is that headroom vs actual power to the sub? Link to comment Share on other sites More sharing options...
Audiohz Posted October 2, 2019 Report Share Posted October 2, 2019 2 hours ago, airofu said: If I have a subwoofer that is 600rms rated 1200w peak - but an amp that can do 1500rms, what should I set my max output too on the amp for this sub? I get having a bigger amp gives me more headroom and less likely to distort as it won't max out as would be this case, but do I still set the amp as max output for the rated 600rms? I read about 50% more....but is that headroom vs actual power to the sub? You have a DD1 is why your asking correct? Link to comment Share on other sites More sharing options...
Audiohz Posted October 2, 2019 Report Share Posted October 2, 2019 2 hours ago, airofu said: If I have a subwoofer that is 600rms rated 1200w peak - but an amp that can do 1500rms, what should I set my max output too on the amp for this sub? I get having a bigger amp gives me more headroom and less likely to distort as it won't max out as would be this case, but do I still set the amp as max output for the rated 600rms? I read about 50% more....but is that headroom vs actual power to the sub? Also what's the sub a d4? Also what's the amp? Link to comment Share on other sites More sharing options...
airofu Posted October 2, 2019 Author Report Share Posted October 2, 2019 Just using a multi meter and oscilloscope (same as a DD1?) to work out estimated distortion free output from the amp, with a hypothetical 600rms sub and 1500rms amp at 1ohm. Do I set the amp hard at 600rms to match the sub or give it a bit more due to playing music not tones/impedance rise? 800rms? more? Link to comment Share on other sites More sharing options...
Mike4068 Posted October 2, 2019 Report Share Posted October 2, 2019 Depends on the sub and the enclosure. Start with 600 and if you aren't happy go up to 900. If your subs get stinky back it off a bit. Link to comment Share on other sites More sharing options...
Audiohz Posted October 2, 2019 Report Share Posted October 2, 2019 11 hours ago, airofu said: Just using a multi meter and oscilloscope (same as a DD1?) to work out estimated distortion free output from the amp, with a hypothetical 600rms sub and 1500rms amp at 1ohm. Do I set the amp hard at 600rms to match the sub or give it a bit more due to playing music not tones/impedance rise? 800rms? more? With the oscope I would take the multi meter out the picture. You'll still like an need a little gain overlap and depending on content played more or less . Link to comment Share on other sites More sharing options...
Casparado Posted October 2, 2019 Report Share Posted October 2, 2019 It really depends on the brand of the subwoofer. Some are considerably underrated (like Sundown... or a lot of the quality brands for that matter), and some are severely overrated in their power handling (like Rockville). What brand are you looking at? Link to comment Share on other sites More sharing options...
AaronT Posted October 3, 2019 Report Share Posted October 3, 2019 34.6 volts for 600 watts rms @ 2 ohm 24.5 volts for 600 rms @ 1 ohm 40 volts for 800 rms @ 2 ohm 28.38 volts for 800 @ 1 ohm Link to comment Share on other sites More sharing options...
airofu Posted October 4, 2019 Author Report Share Posted October 4, 2019 Thanks for the replies looking at a Skar SDR which is potentially a little underrated. If I am playing music as a daily, it sounds like you can also go a bit above RMS as it's not always going to peak the wattage based on the music/impedance rise? Link to comment Share on other sites More sharing options...
AaronT Posted October 4, 2019 Report Share Posted October 4, 2019 The sdr I'd stay within +100 watts of rms. IMHO it's thier lowest acceptable sub in terms of performance and build quality Link to comment Share on other sites More sharing options...
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