MrSkippyJ Posted February 2, 2012 Report Share Posted February 2, 2012 By high voltage I meant power input... I run my amps at 16v at wired at .35 for daily.. to much preamp input voltage causes problems especially if there any clipping oh gotcha. i was referring to RCA voltage. Still I agree with you that there is no need to send crazy high voltage (RCA) into the amp. 4v is just fine. I am just personally a fan of keeping my gains as low as reasonably feasible in my car. I actually have my gains on my mids and highs amp turned all the way down. Really nice for the noise level in my car F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
TRTC360 Posted February 2, 2012 Report Share Posted February 2, 2012 I disagree on the higher input voltage when wired at low impediance with high. Voltage..... I get major issues with subs jumping the gap like that send amp 3 to 4 volts max imo I've seen the term jumping the gap quite a few times on the forum and I'm not sure what it means I'm assuming its when the subs suspension unloads so much that the bottom of the coil actually passes the top of the coil gap and either gets stuck up there or causes coil rub due to.the coil moving out of place, if that's what jumping the gap means aren't you jumping the gap due to overpowering or playing outside of tuning? Please correct me if I'm wrong. '93 Firebird Formula V8 H/U- Kenwood eXcelon KDC-X395 Mids/Highs Amp- Hifonics ZXI80.4 Wiring-KNU RCA's, Speaker Wire, And Two Runs Of Trystar 1/0 G34 Red Top and a 180amp Ford Alternator www.youtube.com/TRTC360 Link to comment Share on other sites More sharing options...
MrSkippyJ Posted February 2, 2012 Report Share Posted February 2, 2012 I disagree on the higher input voltage when wired at low impediance with high. Voltage..... I get major issues with subs jumping the gap like that send amp 3 to 4 volts max imo I've seen the term jumping the gap quite a few times on the forum and I'm not sure what it means I'm assuming its when the subs suspension unloads so much that the bottom of the coil actually passes the top of the coil gap and either gets stuck up there or causes coil rub due to.the coil moving out of place, if that's what jumping the gap means aren't you jumping the gap due to overpowering or playing outside of tuning? Please correct me if I'm wrong. IIRC it is when the coil is out of the magnetic gap. doesn't have to get stuck or rub I don't think. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
AMI CUSTOMS Posted February 2, 2012 Report Share Posted February 2, 2012 To be on the safe side. Don't run amp below nominal impedence Amp is rated at .75 ohm so another .25 ohm lower doesn't hurt it. TEAM SOUNDQUBED -- TEAM SOUTH TEAM S.O.B. - Founder & Captain 3x Streetbeat World Record Holder 2017 MWSPL 1st place Mayhem & 4th Xtreme 4 2016 MWSPL 1st place Mayhem/2nd Adv 4/2nd Xtreme 4 2015 MWSPL 2nd place Mayhem & 4th Xtreme 4 2014 USACI 2nd place Streetbeat 5 - 162.6 db 2014 MWSPL 2nd place Xtreme 4 - 144.9 db 2013 USACI 1st place Streetbeat 4 - 161.9 db 2013 USACI 1st place Street Q+ - 162.8 db 2013 MWSPL 3rd Kaos2 & 4th Xtreme 4 2011 USACI 2nd place MOD 1001-2k - 160.0 db 2011 MWSPL 4th place: Adv3 - 157.8 db, Kaos2 - 150s db, Xtreme4 - 140s db 2010 ARSPL 1st place 501-750 - 160.3 db Arkansas loudest Best score to date 164.4 db - Termlab Outlaw Streetbeat 4 - 161.9 db Streetbeat 5 - 162.6 db MWSPL on Dash Legal door open (Music) - 162.5 db Sealed on dash Legal (Music) - 161.1 db - Termlab THE BLACK NASTY CURRENT BUILD & FAB The Black Nasty (6) 15 Rebuild Log 2012 (4) 15 Walled Sierra Build Log Evo X build log Facebook page The Black Nasty Link to comment Share on other sites More sharing options...
MrSkippyJ Posted February 2, 2012 Report Share Posted February 2, 2012 To be on the safe side. Don't run amp below nominal impedence Amp is rated at .75 ohm so another .25 ohm lower doesn't hurt it. plus, no company rates their stuff at extremes. They rate it to cover what the average idiot will put it through. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
AA98hoe Posted February 2, 2012 Report Share Posted February 2, 2012 I disagree on the higher input voltage when wired at low impediance with high. Voltage..... I get major issues with subs jumping the gap like that send amp 3 to 4 volts max imo I've seen the term jumping the gap quite a few times on the forum and I'm not sure what it means I'm assuming its when the subs suspension unloads so much that the bottom of the coil actually passes the top of the coil gap and either gets stuck up there or causes coil rub due to.the coil moving out of place, if that's what jumping the gap means aren't you jumping the gap due to overpowering or playing outside of tuning? Please correct me if I'm wrong. Well I've ripped the triple joints and bent formers on coils by jumping the gap ..at a show a few months back I blew some brand new sexy dc xl recones from it...ripped all 4 of my 18s during a burp... TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
PaulPumpsBass Posted December 21, 2014 Report Share Posted December 21, 2014 Ok so i need some help, I have 2 Ascendant Audio Mayhem 18's, on a RD Audio D9 at .5 OHMS. Can the Mayhems handle that amp at full tilt? Given i have the proper electrical, and the amp producing a clean signal? Ok so i need some help, I have 2 Ascendant Audio Mayhem 18's, on a RD Audio D9 at .5 OHMS. Can the Mayhems handle that amp at full tilt? Given i have the proper electrical, and the amp producing a clean signal? I'd bet the amp goes first On a D9? That amp will run for DAYS at .5 ohm. And to the OP, yes they will handle that power. What are the specs on the RD Audio D9? 1994 Mazda RX7 with LS1 Swap and 2 - 10" Kicker L7's in Truck Boxes (because of extremely limited hatch space) 2003 GMC Yukon XL with 3 - 12" MTX 9500's and still has the third row seat (over 7.5 cu ft of enclosures behind third row) 1971 Chevrolet Nova with LS1 Swap (work in progress, most likely 4 - 12" Alpine Type R's as I already have them) 1961 Chevrolet Corvette Restomod with LS7 Swap (system upgrade will be one of the first things that I'll do) Solo Basshead For The Most Part, None Of My Close Friends Have A Passion For It, Nor The Money For It. If I'm Home And Free... Always Looking To Meet Up With A Fellow Enthusiast To Talk Shop Or Do Demos! Hard To Find Fellow Bassheads (Not Crack or Heroin Addicts, I Can Find Them Everywhere) In Baltimore / Mid-Atlantic / DMV areas. Link to comment Share on other sites More sharing options...
crownvicon28s Posted December 23, 2014 Report Share Posted December 23, 2014 Ok so i need some help, I have 2 Ascendant Audio Mayhem 18's, on a RD Audio D9 at .5 OHMS. Can the Mayhems handle that amp at full tilt? Given i have the proper electrical, and the amp producing a clean signal? Ok so i need some help, I have 2 Ascendant Audio Mayhem 18's, on a RD Audio D9 at .5 OHMS. Can the Mayhems handle that amp at full tilt? Given i have the proper electrical, and the amp producing a clean signal? I'd bet the amp goes first On a D9? That amp will run for DAYS at .5 ohm. And to the OP, yes they will handle that power. What are the specs on the RD Audio D9? Specifications RMS power, 2 ohm linkable/dual mono RMS power, .75 ohms mono 5400 RMS power, 1 ohm mono 3600 RMS power, 2 ohm mono 1800 RMS power, 4 ohms mono 900 Signal to Noise Ratio >100dB Low pass frequency crossover 35Hz~300Hz Subsonic filter 10Hz~60Hz Bass boost @ 45Hz 0~18dB Phase shift control 0~180 degree Frequency response 10Hz~350Hz (+/- 1dB) T.H.D @ 4 ohm <0.1% Efficiency @ 4 ohm 86% Fuse rating 500 amps Input Sensitivity 200mV to 6V (+/- 5%) I run a ct 4000.1 @ .5 daily, basically the same amp as the d9, doesn't even get warm to the touch. Link to comment Share on other sites More sharing options...
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