i471 Posted April 29, 2013 Report Posted April 29, 2013 So i bought my first system off a friend. A 12' 2DVC Kicker L7 and a 1800 watt (900rms @2ohm) Kenwood amp. Should I wire it to 1ohm or 4ohm? Also the sealed enclosure has a whole where the terminal cup goes. Does it have any negative effects on the sound?
Aidan Hansen Posted April 30, 2013 Report Posted April 30, 2013 As far as your question on the amp and what it should run at is hard to say without knowing some more info on your amp. Model number at least would help and making sure your kenwood can run at 1 ohm makes a difference in your decision. The question you have on the enclosure is up to you as well. First off the hole could be left open which would there fore make it a ported enclosure and depending on the size of the box it will make your tuning of the box different. Therefore will it have any negative effects on sound no. Might it sound different yes. It also depending on the enclosure could put more tension on the sub. If you have enough cubic feet in your box your sub won't feel a thing. If it's smaller than minimum specs it will affect how the sub plays. If too small the sub will have a harder time trying to move and cause more tension on the spider and suspension. Harder the suspension the less tolerable for smaller enclosures. Softer suspension allows for more movement and more tolerance in smaller enclosure. ^Vehicle log to come soon for this.^
Krakin Posted April 30, 2013 Report Posted April 30, 2013 So i bought my first system off a friend. A 12' 2DVC Kicker L7 and a 1800 watt (900rms @2ohm) Kenwood amp. Should I wire it to 1ohm or 4ohm? Also the sealed enclosure has a whole where the terminal cup goes. Does it have any negative effects on the sound? I have the same amp. DO NOT RUN 1-OHM! You will blow the fuses on it. Just stick with the 500 watts in 4-ohm. One give away into not running in 1-ohm is the manual goes from 900w @ 2-ohm to "over 900w @ 1-ohm. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener.
i471 Posted April 30, 2013 Author Report Posted April 30, 2013 The Amp is a Kenwood KAC-9103D. So i hooked everything up and the sub sounds like its farting... Here's a picture
WastedTalent Posted April 30, 2013 Report Posted April 30, 2013 pre-fab. RUN FOREST RUN!!!! Sheena = pedobear
Broke_Audio_Addict Posted April 30, 2013 Report Posted April 30, 2013 It's making that noise because your missing terminal cup is like having an AIR LEAK not a port. That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.
CleanSierra Posted April 30, 2013 Report Posted April 30, 2013 As far as your question on the amp and what it should run at is hard to say without knowing some more info on your amp. Model number at least would help and making sure your kenwood can run at 1 ohm makes a difference in your decision. The question you have on the enclosure is up to you as well. First off the hole could be left open which would there fore make it a ported enclosure and depending on the size of the box it will make your tuning of the box different. Therefore will it have any negative effects on sound no. Might it sound different yes. It also depending on the enclosure could put more tension on the sub. If you have enough cubic feet in your box your sub won't feel a thing. If it's smaller than minimum specs it will affect how the sub plays. If too small the sub will have a harder time trying to move and cause more tension on the spider and suspension. Harder the suspension the less tolerable for smaller enclosures. Softer suspension allows for more movement and more tolerance in smaller enclosure. Terrible advice on 2 accounts 1) Don't run that Kenwood amp at 1 ohm, it's not stable and will not run well wired at that impedance. 2) The hole where the terminal cup was, does NOT act like a port. It behaves like a big hole in a sealed box. Aiden, if you don't know the answer, don't reply. This is terribly advice and could lead to the spread of misinformation. Im not the one you want to try to troll. Just a fyi for you.
Ambassador of Bass Posted April 30, 2013 Report Posted April 30, 2013 ^this Audi A6 Quattro Wangin' Wagon Pioneer Premier DEH-P5901B Headunit w/ IPOD control American Bass SQ5.25 in the Doors Compression Drivers and Horns under Dash 2 American Bass SQ475's for Mids/Highs4 American Bass HD 15's American Bass 500.1 17cuft 3/4" Double Baffle Birch Enclosure 240sqin port @38hz1/0 AWG Stinger big 3 under hood4 Runs of 1/0 AWG Stinger Power and Grounds Stinger Fuseblocks(3) XS Power D3100 Powercells120 amp AlternatorBlue Streetglow Underglow and Interior with Music InterfaceEscort Passport 8500 X50 HardwiredScanGuage II with voltage Readout
Aidan Hansen Posted May 1, 2013 Report Posted May 1, 2013 As far as your question on the amp and what it should run at is hard to say without knowing some more info on your amp. Model number at least would help and making sure your kenwood can run at 1 ohm makes a difference in your decision. The question you have on the enclosure is up to you as well. First off the hole could be left open which would there fore make it a ported enclosure and depending on the size of the box it will make your tuning of the box different. Therefore will it have any negative effects on sound no. Might it sound different yes. It also depending on the enclosure could put more tension on the sub. If you have enough cubic feet in your box your sub won't feel a thing. If it's smaller than minimum specs it will affect how the sub plays. If too small the sub will have a harder time trying to move and cause more tension on the spider and suspension. Harder the suspension the less tolerable for smaller enclosures. Softer suspension allows for more movement and more tolerance in smaller enclosure. Terrible advice on 2 accounts 1) Don't run that Kenwood amp at 1 ohm, it's not stable and will not run well wired at that impedance. 2) The hole where the terminal cup was, does NOT act like a port. It behaves like a big hole in a sealed box. Aiden, if you don't know the answer, don't reply. This is terribly advice and could lead to the spread of misinformation. I'm sorry on the hole as a port idea. I'll take responsibility on that fully and if i'm wrong i'm glad someone tells me. I thought the forum was for people to learn, and help out others. Eventually someone slips up somewhere, or doesn't know everything. However, I didn't mean to say he should run that amp at 1 ohm. I said if you know that amp is stable at 1 ohm it will work and could be ran that way if he desired. That's why I asked if he could tell us more about the amp like a model number. ^Vehicle log to come soon for this.^
Aidan Hansen Posted May 1, 2013 Report Posted May 1, 2013 Also the manual for that amp says its capable of running 1 ohm. See page six: http://manual.kenwood.com/files/B64-3509-00.pdf ^Vehicle log to come soon for this.^
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