Swordlordboy1234 Posted August 20, 2012 Report Share Posted August 20, 2012 So i ordered a brand new set of Polk MM6501 components, and i have a rockford T600-4... but i decided against rear fill for the moment. Is it possible to run my amp as a 2 channel on these mids? i realize 790rms is too much for 125 rms each side (250 total) Will keeping the gains lower give me more headroom or something to this effect? Or should i just run it as a 4 channel (128 rms) and leave the other 2 channels empty for now till i find a better use. I do have a dd1, i was thinking setting the gains on SQ setting as a 2 channel on my 600-4... maybe that wouldnt be too much as long as i have a clean signal from the HU and a clean signal super low gain on my amp?.... Help please. Installing on tuesday Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
ToNasty Posted August 20, 2012 Report Share Posted August 20, 2012 Thats what i always do. I run 2 channels.instead of 4. No reason for it. Just what i do. Your fine doing that Quote ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted August 20, 2012 Author Report Share Posted August 20, 2012 You run 2 woofers and 2 tweeters off a 4 channel that can easily push double the speakers RMS? Id just hate to pop 200$ of speakers on the first day. Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
ToNasty Posted August 20, 2012 Report Share Posted August 20, 2012 Oh i misunderstood. I thought you meant running 4 seperate on a 2 channel. Sorry man Quote ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
SnowDrifter Posted August 20, 2012 Report Share Posted August 20, 2012 Dial the amp down to run rms power. Mids and highs will burn up really fast once they start to stink Ohms law: power = v2/r where v is ac voltage, and r is the resistance Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted August 20, 2012 Author Report Share Posted August 20, 2012 No i will have 2 woofers and 2 tweeters total. 1 600-4 total. 128 x 4 @ 4 ohms or 395 x 2 @ 4 ohms (on birth sheet) My question is... is it beneficial to run my amp as a 2 channel (395 rms) but keep the gain super low (confirmed zero distortion with my DD1) or just run them on 2 of my 4 channels (128 rms) They will take a single channel of my amp full power no problem. But i was unsure of "headroom" and its principles. That maybe theres a benefit to giving the speakers way too much power but keeping the gains so they are not putting out Max RMS power (set using my DD1) Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted August 20, 2012 Author Report Share Posted August 20, 2012 Dial the amp down to run rms power. Mids and highs will burn up really fast once they start to stink Ohms law: power = v2/r where v is ac voltage, and r is the resistance If this is true... then 14.4 squared is 207.36... 207.36 / 2.7 (actual resistance of my speakers at hand) is 76.8 RMS.. and since they can take 125 rms then i can run 2 channels on one set? Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
SnowDrifter Posted August 20, 2012 Report Share Posted August 20, 2012 Where are you getting 14.4 from? 125w=v2/2.7ohms 125*2.7=v2 337.5=v2 v=18.4v So now hook up your dd-1 and a vol meter to the output on your amp, play 1kHz -5db and adjust your gain so your amp puts out 18.4vac, making sure that the dd-1 doesn't indicate distortion. Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
Jessica Posted August 20, 2012 Report Share Posted August 20, 2012 I would be careful clamping your amp in 2 channel with your mids hooked up. Unless you start with your gains all the way down and burp for like 1 second, which makes it really hard to get an accurate reading. I bridged my 4-channel ran it to my components, voltage without any speakers hooked up was 34v. Hooked up speakers to see what i got under load, and in the time it took to get a god reading i cooked my mids. Was doing 120-130 watts a 1khz to 90w rms speakers. I should have just left well enough alone because on music they were doing fine, probably seing around 100-110 watts. And i had everything set with the 0db tone using the dd-1. You may not have the same problem but then again, you want to risk it? Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted August 20, 2012 Author Report Share Posted August 20, 2012 Where are you getting 14.4 from? 125w=v2/2.7ohms 125*2.7=v2 337.5=v2 v=18.4v So now hook up your dd-1 and a vol meter to the output on your amp, play 1kHz -5db and adjust your gain so your amp puts out 18.4vac, making sure that the dd-1 doesn't indicate distortion. Yeah that was noob, i was thinking 14.4 volts lol. time to google some to help me understand the valuable info you just provided in a language i dont fully understand =] Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
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