Amplifiers / Head Units / Processors / Electrical

I have 2 alpine type r 12 DVC 4ohm subs In ported black box tornado series. My Kenwood head unit has a 2.5 volt Preout. I have had my gain on my alpine mrx m240 half way up with no bass boost and crossover set at 85 on the amp wired at 4 ohm putting out 1500 watt into 2 alpine type r. I got the smd distortion detector a few days ago to see if I was clipping . I live in the middle of no where and the local audio shop has no clue what they are doing so I installed everything and set gains myself. I used the smd dd1 and it at my max volume on the headunit which is 35 it shows my amp starts clipping at slightly above 1/4 on the gain . I rarely get my volume past 26 on the hea…

Hey guys, just to give you a low down on what i have. I have the 2 18 inch SSA prototypes 4,000 RMS being pushed with 1 (for now, soon to have two) AQX3500.1 in a 1997 honda accord SE, and a DC 270 XP alternator. Now, i live in Arizona which i know a lot of other people do who are on SSA forum. My amp is located in the trunk along with the battery. My box sits in the backseat. I am having HUGE cooling problems with the amp because no AC can get to the trunk and the trunk is forced to deal with full exposure unlike most SUV's. The fan helps but i still can't quite seem to get it out of protect and if it does, it takes 5 minutes with the trunk open and the fan running. Not …

I have a 12'' dc lvl 4 in a box; 2 cf tuned to 30 hz. I have an audiocontrol epicenter which will be replicating fast-paced bass down to the subwoofer level (rock music). Would it be worth it to run the sub at 4 ohms as opposed to 1 ohm? 1 ohm would of course be cheaper, but would I notice much of a difference (considering the bass will be rather fast-paced) if I bought a 4 ohm 1000w amp? what amp would you guys recommend? I know a DC sub isn't the best choice for SQ, but I already have it frontstage is a pair of hertz mlk 165's powered by a ZED kronos alpine 9887 hu.

Anyone have any personal expierence with the soundstream pca2000d. they are rated 2000 watts rms. Anyone know if its underrated or overrated? I am gonna be getting either to Fi Bl 15" or so SSA icon 15". Just wondering if this amp will be good for my project. here the specs http://www.onlinecarstereo.com/CarAudio/Pr...ProductID=15529

Could get a Sundown 125.2 and bridge it. Not 600watts, but would work fine.

Sup guys quick question, What do you think would be the best amp to accommodate a sundown audio sa8. The sub would be in a ported enclosure around .8 cubic ft tuned about 31-32 hz. I want use for daily driver not spl. I know it's rated at 400rms but do you guys think it can handle more? For amps I like rf kicker jl I've owned all three, never had problems. It's just very hard to choose the correct amp. Usually I have the same brand for both sub and aml but sundown doesn't have a amp around 400rms (at least not in my price range) I mean I wouldn't wanna spend the extra dollars for something like sae1000. Sure there will be headroom but I don't plan on upgrading this is g…

Some of you may remember the build I did for my sister in her 2002 Durango and the resulting review I wrote for her 12" DCON afterward, may not. It currently consists of a Kenwood KDC-X493 HU, Phoenix Gold RSD 6.5 components in the front, JBL GTO 6.5" coax's in the rear doors, the DCON all powered by a Hifonics ZXi8010 five channel amp. Now, I mentioned in the review that it was easy to reach the limitations of the amp and hear it through either the highs or the sub. We did a little playing around recently and connected that DCON to my Sundown in the van and there was a night and day difference. I would attribute most of that to the MAJOR headroom the SAZ2K has at 2 o…

I am tryin to figure out if i should install an isolator in my setup and have been reading a LOT of info about this and have came across a LOT of things that i have never read about before from others. I've read things like- Not using an isolator can hurt the starter by it receiving a superior CA load and may kill it quicker. Showing off with car off will kill starting battery. Now, i've been on Stinger's site and i gotta call them about some things because they got some products and descriptions that are just begging for answers! Such as their SRVG which shuts off power altogether in the rear to prevent front battery from dying.... really? How? And also, their 200A rela…

Hey guys, buying a new amp soon, past two used sundown amp purchases fell through so im just gonna go with one of these. My only question is which one of these would be better for what i am doing. I will not have the sa-12s for about a month to 2 months. I would like to buy the amp now. I currently have a jl w6v2. Which amp would work better to do this? i am leaning towards the 1200.1d because the sa-12s are rated for 600rms. I am planning to do as little electrical upgrades as possible also. But if it would be absolutely worth it i would do it for the 1700. http://www.onlinecarstereo.com/CarAudio/p_23922_Hifonics_BRZ12001D.aspx or http://www.onlinecarstereo.com/CarAudi…

I can get my hands on a Kar 1000.2t and I just wondered if there were any good, mostly from a SQ perspective but for a daily driver not that fancy. Anyone know if this is a class AB...what apps it would work good for? http://www.realmofexcursion.com/ampguts/Arc_KAR_1000.2T/ I guess a cerwin vega and clarion are the same amp.

well long story short, i may be getting back the massive 3k today. i did trade my close friend and he isnt liking the way it sounds so i told him i would trade him back if he really wanted. so that being said, i have had a few offers on the massive. either sell for $315 shipped to a guy on c.a.c.o, or i was offered a LNIB crescendo bs2000. so my question is, should i sell the amp outright and pick up this other aq2200 for $275-300, or trade it for this almost brand new Bc2000? which ever amp i go with now, i will be adding a second one and linking them together to the zcons which are d2's so they will run at a 2ohm load. iv been sitting here at the computer now for 2 ho…

CADENCE ZRS-8000D what do yall know about this particular amp past or present history. I know their old stuff was the sh@t but how are they so far as quality now? I see them for about 600 shipped and its strappable @ 2ohm plus its not a bad looking amp. Wanted to run 2 fully loaded btl12s in my Thunderbird tuned to 32hz. Wanna totally seal off the enclosure to the cabin as well. Trying to make a nice GP.

The DSP aint working correctly on low input only on BT mode. On low mode only ch1/2 work rest aren’t playing, BT mode all play perfectly. I sent back to AD & was told there is nothing wrong that all outputs on low mode are working . other issue i get a clock ticking sound from ch 1 & BT keep cutting off every few seconds or minutes.

Without having to delve too deep into the world of signal reproduction and the discrepancies in what the human ear perceives, can someone please simply explain distortion, how it relates to us simple "daily system" people, and the relevance/relativity in terms of overall distortion of "-40 dB from the fundamental." I read this article, and I understand the basic concepts presented, but I was wondering if anyone could put it in more of Laymen's terms. Thanks!

I'm in the market for new alternators and I was talking to a guy about the Mechman 370a units. he was telling me they would never put out advertised amperage and they wouldn't even turn on at idle speed. I think its bs, but do any of you have experience with these alts?

so im shopping around for a new headunit and i came across this, which has all the options i want, but i havent used jvc before. it has good customer ratings, but has anyone on here used them before? should i just leave it be and stick with alpine and the good stuff or what? i would rather save the hundred dollars, but if its garbage ill leave it alone. http://www.crutchfield.com/p_105KDS100/JVC-KD-S100.html?tp=5684&tab=features_and_specs if anyone has used the bongovi (sp) sound thing, if so how does it REALLY sound?

I need to update my double din head unit and looking for some recommendations from experienced people. I have used Alpine iLX-207 which offered me 7 inches touch screen which was easy for me to access all features. The most great thing for me about this head unit is that I can easily manage the system via the screen or from the steering wheel to use Apple Car Play or Android Auto. But recently it stopped working and just showing the dark screen (as its very long I have not upgraded it). Now I am thinking of upgrading it rather than repairing. I have check out few reviews and got various recommendations from few people. I am impressed with this review: https://speake…

okay, heres the score: i have two RE SX 12D2's i purchased. I wanna power them with 2 Sundown Audio 1500's. I have a stock alternator and it pushes about 160 amps. ive searched for another alt but they dont have one for my vehicle. I was told to purchase a seperate battery but i know its just another load on the alternatorso my question is would it be better to purchase one big capacitor, (i.e. a 10 or 20 farad) or just purchase another battery? thanx

I just hooked up my equalizer and i taped into the head unit ground and power wire to power the eq and when i start my car i hear the engine noise ? how do i stop this?

Hi guys, my current amp is starting to give me some issues (well I think it is). It is an option audio OA1200 powering a Fi Q12 at 1ohm, and I have had it for about 5 years now but I don't think it's dealing too well with a 1ohm load (it has been running at 2ohms till now when I got the Q). When I initially hooked everything up I set the gains using my oscilloscope, the HU did not clip even at full volume, and the amp started clipping at ~1/3 turn using both a 60hz and 30hz sine wave. Anyway, a couple of weeks later I noticed the sub was getting hot, which should not really happen on 1200w,so i decided to inspect the system again. I checked my 4 channel amp, and that was …

Can it be done folks?

I want to run an active front stage. I am using an AC DQX and an Audison VRx 4.300. Here is a clip out of the manual: Is this the correct way to wire the set up? I just want another opinion before I run my tweeet off the bandpass output of the DQX, or something along those lines. (sorry for the crap diagram, but the middle section is the RCA inputs, and the speaker terminals are on the outsides). Thanks.

ive got a Diablo Audio Hellfire 8000.1 it has a blown power supply. where can i get it repaired? Db-r does not do them, already checked. i know of amp medics, any others? and what happened to them? their website is gone, and i cant find them anywhere.

I have an old school Memphis amp putting 1500 at two ohms into two SA12s. Bass boost on the amp is 40hz, I have the bass boost up a quarter. Amp gain is at half right now but, BUT. I have a feeling it's not all the way up. I usually set my gains by playing Put On by Jeezy since it has a few different levels of bass and I can set it so it doesnt clip on any of those. I don't feel like im doing this right, so I need pointed in the right direction. I get a 40hz tone and put the bass boost to what? I just need help...

Planning a build in a 2012 hyundai sonata with the infinity premium system while retaining the stock unit Here's what we have so far Hybrid audio clarus jl hd 600/4 + 750/1 2 jbl gto 12's(IB) No processing as of yet since the head unit schematic is very tricky. Now, from the information I've gathered The stock head unit has a digital out(spdif) that goes to the factory amp. Usually, you'd go straight from head unit to processor, but, if you bypass the factory jbl amp, you lose bluetooth, xm, & am/fm radio. I'm about 90% sure the speakers crossed inside the amp, so I'm lost on what to do here. Tapping after the amp seems like the only option, but I can't seem to f…