Down4soundshop

Looking at this and my know-it-all friend who fried new subs by setting his gain too high, by ear, said if i get that I should buy an audiophile apmn-1500 to replace the jp8. The jp8 pushes 1256w at 1ohm and the apmn pushes 1414W at 1ohm. How does the quality of these two compare? How well do these deal with heat? I have my current cheap amp in trunk in area that gets very hot and want to keep the new amp there. How much louder will a 158w difference make? Im sure the sundown can take the 1414. Recommendation? If i should go with the AP (or other) then i wont buy the package and will buy separate cuz why pay for amp ill not use?

Alright guys. I wanna plan out a huge build.. for a compact car. No I don’t want a Tahoe or Escalade build.
I have a fully 100% dampened ‘21 Kia Soul. I managed to fit 252sqft of StingerX dampener in there. Roof and doors have multiple layers and literally everywhere else has it too.
I Currently have the largest alternator I can get my hands on for this car, 345a. I’ve looked into a dual alternator setup but I just can’t find anyone who would be able to make that happen. So that’s what I’m working with. I also have 2 powerxs agm batteries rn. I get a solid 14.8v.
I have an X15v3 D2 in a 5cu box powered by an sfb5k, but I need more :). I also have some mids and highs running off 200rms per channel. When I go balls out I get voltage drop to 13.6v.
Here’s what I’m thinking. I could do 2, 3, or 4 of that same sundown X15v3 sub which are $700 each. I already have 1. I’d want 3k of useable power per sub.
First thing is how to arrange them? Should I do 2-4 in a wall facing the driver maybe 9”-12” behind the seat? like thisOr should I do those open type 6th order boxes where the subs are inverted with magnets facing the ceiling on the inside of a huge box that opens to the driver like this one
Second thing would be amps. My sfb5k is absolutely solid. I also over wired it tho with multiple grounds. If I went with 2 subs needing 6k I’d consider maybe the sfb8k. I don’t know anything about taramps 8k but that’s a cheaper option. Or the JP83 which is .5 ohm stable. I’d also consider the salt 8 but that seems like an expensive version of the jp.
If I got 3 subs needing 9k I’d want 12k which I could use the taramps 12k .5 ohm stable or maybe 2 of the jp63. I don’t want to go with the salt12 unless I have to since it’s so big and expensive.
For 4 subs needing 12k total I figured I’d run 16k to have the headroom. Would 2 sfb8k be a bad option if I kept them at 1 ohm? That’s only like $1,100 for both. Or 2 of the jp83 would be around $3k.
And finally Since I know 345a isn’t nearly enough I would need a lithium bank. I don’t know hardly anything about lithium quantities, I just know that for short bursts it can make up for not enough alternator. I would demo full blast for more than 15-30s tops. I heard 80ah of lithium but I don’t know for sure if that’s enough or if I’d want double that.
Budget is negotiable. Under $7k is ideal but it can go as high as 10k. I’d build the box inside the cab myself so that’s not really part of the budget. Budget just needs to be subs, amps, and lithium.
Also any alternate suggestions to what I have listed? Thank you to everyone who replies.
Also I would love to take it to competitions but I consider this more of an extreme hobby vehicle.

Hey everyone, I am hoping to get some insight on my issue as I am no expert and often miss obvious things during troubleshooting.
The issue is that my new setup doesn't outperform my previous setup, possibly a bit less.
Current setup:

• 2008 Mazdaspeed3 w/ 110A OEM alternator
• Costco Group 35 battery
• Eonon R51 Headunit
• Down4Sound Profab Box sold with SA-12 Classics
• Down4Sound JP23 Amplifier @ 1ohm
• Down4Sound 0 gauge tinned OFC cable

Only because this is my only comparison, my other setup going 5+ years strong:

• 2006 Mazda3 w/ 90A OEM alternator
• Costco Group 35 battery
• 0 gauge big 3
• Kenwood DDX470
• Ported eBay box, dual 10s, pretty big
• Sundown SA-10 Rev 1 (The 600RMS rated ones)
• Hifonics BXX2000.1D @ 1ohm
• KnuKonceptz 0 gauge KCA cable

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Before I continue, I want to preface that I know the Speed3 is missing the big 3 upgrade, it's on the list and is upcoming. Mazdas are finicky with HO alternators, requiring external regulators, so I'm trying to keep it similar to my Mazda3 setup by just staying OEM, maybe another battery down the line.
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I finished the install on my Speed3 and was a bit disappointed it wasn't louder than the SA-10s in my Mazda3, so I started doing some troubleshooting to figure out why this might be.

• Subwoofers are DVC 4ohm wired down to 1ohm, confirmed at the terminals on the box
• Headunit clips at 23 out of 30, with loudness on. I like this enabled, everything else is flat
  • Loudness off, headunit doesn't clip at 30, subwoofer volume remains the same after tuning
• JP23 amplifier tuned via headunit at vol 23, 40Hz 0dB tone until clipping, then backed off a bit
• I have a 150A fuse under the hood close to the battery
• Sub RCA out 0.16v-0.17v on each
  • Rear speaker out 1.9v on each
  • Either output, tuning the amplifier to just before clipping yields identical volume
• LPF on JP23 set to right around middle, where I suspect ~100Hz is (25Hz-250Hz pot)
• Subsonic filter set to right around middle, where I suspect ~30Hz is (10Hz-50Hz pot)

I'm likely missing some stuff, but am just looking for advice on what to check for, what I missed, etc. For all I know the radio could be shit enough to cause this entire thing, I'm really unsure.

Looking to do a new setup with a single DC Audio 12" level 3, dual 2 ohm. (https://www.down4soundshop.com/Level-3-12-m3-D2/)
Would this amp be a solid choice for it? https://www.down4soundshop.com/sundown-audio-sia-1250-1250w-rms-amplifie
Or possibly this: https://www.sonicelectronix.com/item-158923-NVX-VAD27001.html
I'm still running stock electrical system.
Thanks.

Looking for a pre-wired box to put in, I was wondering if this kit is decent quality? I’ve heard good things about sundown but I’m not sure about the amp https://www.down4soundshop.com/sundown-e12-bass-package-2-e12-12-inch-subs-ported-box-jp8-amp-1000w-rms/

Currently running an 07 MDX w/ nav born stock except for a single kicker comp r 12 powered by a ds18 1800.1. It feels like it’s lacking and I just want a little more power but also on a highschool budget. I’ve heard good things and have decided on a few things but would like some honest feedback or recommendations. I’m no audiophile but I do like my ball shaking bass, but also nice sounding.
For the sub/enclosure I found this Sundown deal on D4S link
Sundown SFB 1000.1 amp on eBay link
And then a 4 guage wiring kit from skar link
And all this totals to around $650 which is what I’m trying to get to. There’s also another combo with the sub/amp/wiring but no box here but I need a box and am having issue finding a good one for the sub. So all in all I come to you guys to seek guidance. Is it good as is? Or should I go for something completely different, or is an upgrade even worth it. Trying to stay $650 or less so please let me know. Thank you guys!

I am upgrading my system in my 2016 Honda Accord and trying to decide on an SQL sub. I am aiming on upgrading to a single 15" sub. I am trying to decide between the Stereo Integrity SQL series vs. IDMAX V4 vs Sundown SA V2. I have heard good things about all 3 and am struggling to come to a decision. What is everyone's thoughts on these? Alternatively, if you have a better SQL focused sub in mind that isn't one of these. I'd also like to know. I know that I will likely need to upgrade my amp to pair better with these subs. As for budget, something in the realm of the Subs below would be ideal.
Links:
Stereo Integrity SQL:http://www.imagedynamicsusa.net/idmax
IDMAX: https://www.woofersetc.com/c-23-subwoofers/c-35-15-subwoofers/p-11706-idmax15-v4-d2-image-dynamics-15-dual-2-ohm-idmax-v4-series-subwoofer.html
Sundown: https://www.down4soundshop.com/sundown-audio-sa-v2-15-subwoofer-1000w-rms-dvc-2-ohm/
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Current System: Front: Hertz MPK 165P.3 Rear Deck: Hertz MPX 165.3 Trunk: 2 Pioneer TS-W304R 12" subs in a Prefab Vented enclosure tuned to 36Hz. Amps: Zapco ST-4XP for the front and rear deck speakers. Kicker CX600.1 for the subs. Processor: Helix DSP.3

I upgraded my 4channel amp a while ago (6 months) and now the old one is just sitting here. It’s the sundown sfb line. I upgraded the 200.4 to a 500.4.
The sfb200.4 puts out 75w @4ohm. I paid around $275 for it, Figured I’d sell it for $150+ shipping. here’s the link for it
Edit: I don’t support Facebook so fbmarketplace isn’t for me

Ok, I didn't want to wait anymore, and I had to use my down4sound credit up, but I got some sundown audio zv6 D1s.. they are rated at 2500w RMS, but they say the JP43 is perfect for them 😳 yall are crazy 😂 or is this subwoofer just really, really underrated? the jp43 in this dyno video is a beast ... 👀 https://www.youtube.com/watch?v=fhXHK9DFXO0
i saved a ton working 3 jobs to afford these. i have 1 with an overbuilt yinlong lithium setup, i hate reconing 😂 i just wanna bang out after work and being an adult.

Hi,
So I got a new amp and subwoofer.
Amp: Sundown SAE V3 2000.D
Subwoofer: dual Sundown E12 4ohm loaded, 1ohm at terminal. (Bought the loaded enclosure at down4sound)
https://www.down4soundshop.com/sundown-e12-load-enclosure-2-e12-subs-ported-profab-box-31-hz-1-ohm/
The amp has 4 speaker terminal, so where do I connect the positive and negative from the box terminal?
Thanks in advance for any insight.

https://www.down4soundshop.com/down4sound-jp8-800-wrms-car-amplifie
https://www.crutchfield.com/p_158XS162ES/Sony-XS-162ES.html
https://www.crutchfield.com/p_158XSW104E/Sony-XS-W104ES.html
These are the only speakers I'll be using. Going for SQ so I'll likely not even run them at RMS. Would I be able to connect 1 speaker and tweeter on 1 channel (so 2 channels for the speakers) and bridge the 2 remaining channels to the sub?

I just recently purchased these 2 amps for my 2019 Chevy Silverado. https://www.down4soundshop.com/down4sound-jp8-jp84-amplifier-combo/ I've never installed anything on my own but have someone with experience helping me. I've already purchased 4 guage KnuKonceptz wiring kits for both amps. My question is, is this the right fuse distribution block https://www.knukonceptz.com/sp/bassik-2-way-10-to-4-gauge-fuse-distribution-block/ to get? And, do I need to get a 120A fuse and a 60A fuse with it?

Running two deaf bonce 8 inch subs (DBSA2508) in a custom box I finally got built for me, but my dumb taramps runs super hot and I burnt my hand “again” on it, so all I want to do now is get rid of the piece of garbage.
For my electrical I have… all 0 gauge wire Mechman 370 H/O Alt Two battery’s Good grounds A pretty solid electrical I’d say.
I’ve tried several amp settings from my gain just a little up to all the way up but either way it still gets hot and I don’t believe it’s putting out the power it should. I’ve heard popping noises from playing certain songs but I believe that’s the clipping from the sub or something.
The subs are dbsa2508 https://www.down4soundshop.com/amp/deaf-bonce-apocalypse-db-sa2508-800w-rms-8-inch-subwoofer-dual-2-ohm/
And the amp is a taramps smart 3k wired up @2ohms
So I’m asking what kind of amps could I get to replace the junk I have now.

I need a 4 channel amp for a reasonably economical setup. I am planning to run my front cabin speakers off 2 channels and bridge the other two for a Focal 10” sub. Here are the options, welcome to suggestions:
Kicker
https://www.bestbuy.com/site/kicker-cx-360w-class-ab-bridgeable-multichannel-amplifier-with-variable-crossovers-black/6333355.p?skuId=6333355
D4S
https://www.down4soundshop.com/down4sound-jp84-400w-4-channel-car-amplifie?revpage=2#tab-reviews

Hey guys, im trying to figure out how i wire my sub to my amp correctly. I would like it to be wired to 1 ohm to get the most power I can. Will I literally just need to connect positive and negative from the sub and amp together? I will provide links for specs of the subwoofer and amp. TIA
https://www.down4soundshop.com/single-12-inch-500w-sundown-audio-e-series-loaded-vented-enclosure/
https://www.down4soundshop.com/sundown-audio-sfb-600d-600w-rms-full-bridge-amplifie
The sub says it's 1 ohm at the terminal and I'm not too familiar with car audio stuff. Thanks