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  1. hello all, car audio newbie here looking for some advice. So im looking for a good quality amp, but all the specs confuse me lots. I need an amp for my mids and highs. I uderstand AB class amps are better in this case but it looks like the market is mostly selling class D amps. I found an amp by hertz MLPOWER4. what do you guys think about this amp? I know its powerful but thats what im looking for as i want to switch to an active setup next summer. How important is the S/N ratio, as hertz specs say 100dB but CEA rating says 80dB. Also hertz says 150rms x 4 but CEA rat
  2. Alright, ive been trying to find a solid answer all over forum's,maybe I'm not looking up the right question or im over thinking it so. I want to put -(2 amps on 1 dual, 2ohm sub) -Amps do not have link option, and are able to operate 1 ohm regularly Amps show 2 rca female inputs -Top labeled: input -Bottom labeled: output My headunit, has one set of rca pre sub outs,(will upgrade eventually.) Will a regular female to male splitter work for the input, and output to get signal to my amplifiers. What i do know or think i know - both amps must be sam
  3. I want to know what would be louder and sound better or hit harder, 4 8s in a ported box or 2 of the same 8s in a bandpass box?
  4. A friend wants me to recone his Sundown 10" sub but we can't figure out what model/version it is so we can order the correct recone kit. I've sent 2 emails to Sundown and also a email to directronix for help but so far no response. I don't want to guess and end up with the wrong recone and have to send it back. I've included some pics before the sub was stripped down. Really hope someone can help.
  5. I've been doing extensive research on my next system build as its going to be the biggest and most technical build I've done. I've run into a lot of snags in my planning and was hoping this forum would be the perfect place for this. I have a pretty solid of foundation for equipment I would like to use, just having trouble on the power side of things. I have a 2009 Crown Vic Police Interceptor with the stock 190a alt and electrical system. I plan to run 2 Sundown SA-12 V2 D4 subs wired down to 1 ohm on a Skar RP2000.1D (2k RMS all day). I've read around and the opinions on how to handle the pow
  6. I had sold my sundown audio x 15 about 5 years ago. along with my rubicon 2500.1. I am now wanting to get back in the game. I have a 07 infiniti m45. Right now on stock electrical I can safely run 1296 watts. I am looking for a 1500 - 2000 rms amp. A single 15 or 18 to match that power. I will also be needing 1/0 welding cable for my runs and to do the Big 3 on this car. I am located in Fort Myers, FL 33916. If after shipping me buying your preowned amp / sub is 50$ away from me just buying it new I am not interested.
  7. I have a Sony WX 900bt and I'm using a little cheap O scope to find max volume. I have everything set to 0 except for bass boost its set to +10 and it clips at volume 48 out of 50. Ok great but I put bass boost on to lvl 2 (the max "loudness") and I don't see clipping even at full volume. Is that correct? or am I doing something wrong? Does loudness change the frequency of the boost perhaps to make it not clip? using a -10db 40 hz, also used a 0db 40 hz with similar results. Any suggestions or recommendations? I see posts saying to use - 10 db track others -5 or even 0 so not sure what t
  8. Right or wrong until this point i have always tuned amps by ear and have have really good luck getting things to sound good. After tons of research and watching various videos on YouTube, i know that I can get more out of my systems. Question 1. When setting amps with the dd1 and other special tools, I see how to tune the amp to the max for the gain. I don't know how that would set that for a particular speaker. For example a 6.5 vs a 8in mid range. Obviously they are going to have different capabilities. Also the difference between various types of speaker frequency. 2. When using a crossov
  9. Hi, I figured I would come here to see if I can get some help. I have a 496 BBC Gen V in my 1969 Camaro. I currently have a mechman 7127240 alt in it and have had nothing but problems with it. It is a single wire alternator. For some reason I've gone through 2 of these mechman alts, the first one did not charge my battery at all so it was DOA. Now the second one just randomly stops charging and the only way to get it to work again is if I disconnect everything from my battery for about 5 min then it will work again for a couple of days. I'm trying to ask mechman for help but they h
  10. I have a 2006 GMC Canyon 2.8l and from everything I’ve searched online I can’t find a alternator that’s high out put. I want to install a 3000watt mono block and a 4-500watt 4channel but know ima need more then the stock 100amp alt. Please someone help me find a alt that’ll work for my plans. It’s been years since my last setup and want to do it bigger this time but also the right way.
  11. Hey there, New to the site and somewhat new to audio as well. I recently installed a 10" Kenwood slim sub in a sealed box into my crew cab F350 as well as a matching Kenwood 300rms amp. (Has been 3 weeks now so sub should be broken in) The sub sounds great at high volume but really is almost not present at mid-low volume. For comparison the factory sub in my dad's premium ford system sounds far better. the EQ is all at the base settings apart from the subwoofer volume which from my understanding should be set to full when setting the gain on the sub amp. Does anyone have any sugges
  12. I recently made a order for a custom alternator and I said I have a 1.4L engine when it’s actually a 1.8L. what does the liter size mean for custom alternators...should it be an issue?
  13. I need help figuring out my port Width, Length, and Height. I'm building two subwoofer boxes for my single cab ram. They're going to be wedge shaped. The cubic ft per box is 1.25 Top Depth=6" Bottom Depth=10 Height=15 Width=26 Going for 35 Hz I'm running a Skar Audio RP-1500.1D ANY HELP IS APPRECIATED! THANKS!
  14. I just got a brand new DD M1D pushing 2 610’s redlines. My gain on the amp is set almost maxed and my friend has a M1D and his is only set about 1/4 of the way and it hits harder than mine. Am I doing something wrong? I have the correct 1 ohm from the subs. I got 14.1 voltage. I’m using a 4 gauge wire with 100a fuse. Do I need to go 0 and 150a fuse? Any input would help thanks
  15. I got a brand new M1D amp from digital design pushing 2 610’s redline. The gain is almost maxed out. And the head unit SW level is +5. Before this amp I had a Memphis VIV 1100.1 and it gain was set more than half and SW level at 0 and pushed the subs pretty good. I got 14.1 voltage to the amp. I got 1 ohm from the subs. Running 4 gauge wire with a 100a fuse l. Do I need to go 0 with 150a fuse?
  16. Hello everyone! I am currently on the lookout for software that could help me construct and tune a 6th order wall in my Subaru outback. I am willing to pay for the software, but free would be better. I need it to be in US standard for measurements (cut sheets, dimensions, all that good stuff.) Please give me a shout out if you guys have any suggestions. Thanx in advance!
  17. Can anyone tell me how much cu ft I need for 2 sundown x-12s on a sundown 4000d in a 4th order box. The sealed chamber is a single so both subs are in 1 chamber. The motor will be in the ported chamber. It will be a blow through with a 9x9 port that is 10.54” long (4.9” inside box , 4.9” outside box)
  18. I was looking into the xmaxxx 15", I have been looking but I can't find the air requirements. Does anyone know the requirements, or could recommend a box, thank you!
  19. I have a DC audio M3 8" Dual ohm sub 600 watts RMS 1200 max and I do believe i burnt the coil. Im running a Hifonics Brutus 1400 1 channel mono block class D. It's wired correctly and ran fine for the few months, left for a job out of town for 5 weeks my truck sat parked. Now the sub smells burnt. If you'd like a picture of how the amp is tuned i would gladly email it to you.
  20. Hi all I have just bought two 12 Alpine type r 12d2s 1000 RMS each. I am looking to put them in ported enclosure but need help on what size to use. I'm looking for deep loud and low bass with the best frequency respose possible. I am able to fit a 4 cubic foot box in my trunk after port displacement and sub displacement. Also if I tune to say 32hz will I get enough bass upwards of 45hz or will it start to roll of/ Also what size port should I use I was thinking 3 inch wide 12 high does port size affect frequency response such as making the response shorter or longer.
  21. Is There Still A Show Going On This Weekend Even Though Its Going To Rain Because I Dont Want To Drive 5 Hours For Nothing Its My Very First 1 Im Really Looking Foward To It
  22. Hi, I am new here and am currently installing a new system into my car. I just wanted to ask if it is ok to screw a amp directly into the metal chassis of the car (I know that there is not a gas tank behind it). This is the same part that the amp is grounded to. I just wanted to ask because I got a amp that once would not come out of protection unless it was not screwed into the car. The amp I am working with is a P400x4 running at 2 ohms. Thanks! -Josh
  23. I have recently gotten a sundown audio zv4 15" d2. I'm looking for an amp that will power it along with a secondary battery and then the best way to build a box to go into a Toyota Corolla trunk Whether it's sub port back, sub back port back etc What are some great amp brands that will rms 2000-3500 watts and sustain play It can be bang for buck or bigger price range Also would a aero port be better or regular port space wise and effiecency wise Thank you very much
  24. okay i just bought the dd1 a few days ago and i had couple quick questions. When tunning the amp should i use cd test track or downloaded versions on phone via bluetooth. honestly i dont listen to cds im either pluged into aux usb or bluetooth does that mean i should tune my amps while playing the track on my phone using aux usb or bluetooth or does it not matter its all them same??? reason i ask is because aux usb and bluetooth are considerably louder than cd i have pioneer 4800 bhs
  25. Hey guys i'm currently working on designing a 4th order bandpass for my two rockford fosgate 12" p3 d4's and i'm stuck on square or aero port and if the one or other port area and length. i tried using this calculator to help me figure it out but yeah that kinda failed where i got the result for port area the size of the car it self so i really need som help with this. the box it self right now is a triple chamber with the sealed chambers at 1,17 ft3 for each sub and the vented section 2.14 ft3 net (i'm gonna invert the woofers) with a tuning of 46hz and the roll off is -3db at 27 hz close t
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