KICKER UnMASKED Shorts - Why Use Passive Radiators?
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- čas přidán 12. 09. 2024
- Passive radiators (aka "ReFLEX subwoofers") make a small enclosure perform like a much larger one. Kip talks about how KICKER uses radiators to deliver big bass in your cargo area, behind your back bench, or under your seat.
Watch KICKER UnMASKED live every Tuesday at 7:30 cst for new info and weekly prizes!
Loaded Enclosures: www.kicker.com...
Raw ReFLEX Passive Radiators: www.kicker.com...
#KickerAudio #KickerUnmasked #Subwoofers
I own a 2004 S10 crew cab. There is no room for anything! I took the chance and bought the 6.75" version of this box. I had to cut out the jack holder behind the rear seats to make it fit. I have to say I am impressed with the output of this little sub. It won't rattle the neighbors but in the cab it's awesome. Much more bass than I expected. I recommend!
Thanks so much for the feedback!
Great idea making these into clips!
I had the Camaro kicker box back in 95. Had two 12 subs and two 10 passive radiator. That thing was impressive on kx amplifier I had . Was loudest in high school. Everyone loved the sound that came from it.
I have a kicker 48TRTP102 on the back floor of my 2020 F150. It's powered by a JL audio vx1000/5i amplifier. It took me a bit of time with the amp to get all the crossover frequencies and filter curves just right, but when all was said and done, that kicker box THUMPS. Like a lot of pick up truck owners, I wanted to add a sub, but didn't want to give up a ton of space in the back. I really wasn't interested in a "behind the back seat" sub, as there's not a lot of options, and I needed that area for the amplifier. For those of you who may be wondering "does the 10 inch model really put out that much bass?" It most certainly does, and it fits nicely under the back seat when it's folded down. Worth noting...the enclosure is SOLID. You're not breaking that thing without specific intent. These shallow kicker boxes are legit. Plug and play bass all day.
When I saw the title I was expecting this to be a CZcams "short.". I was curious to see how you were going to adequately explain passive radiators in just a few seconds.
I had the hatchback 8” full range speaker system with 2 10”passive radiator on the bottom back in the early 90’s.That thing slammed and those horn tweeter really screamed.
I had 1 too... also 2 SS12 2 12'S and two horns in my s10 bed
i had the same. sounded great. and cant find them anymore. i dont want just subs,
but the full range speakers all in one box to throw in the back seat
@@able1115 I might make my own full range speaker boom box for my Crv. Hopefully it sounds good.
I love it. You're maximizing the quality and level of output out of a small package
I'm shocked the phase relation isn't 180 causing the postive motion on the speaker to cause a negative motion on the passive equaling no positive sound pressure. It clearly works as I've seen it working.
I have the CompVT12 box from 2007. It's a week before 2024 right now. It's still playing all these years later. I have it hooked up to the same Alpine Amplifier I bought when I got it so long ago. (The Amplifier was on sale. I couldn't beat the price) Very high-quality products. The CompVT box only has a woofer, and the enclosure is sealed. It's designed to fire into the back of the drivers seat. In my S-10 it worked perfectly as you could slide the box all the way to the cab corner. However, I got rid of that piece of junk and got a Ford Ranger in 2012. ( I'm still driving it, now. Much better truck). The Ranger has speakers in the back, so you can't slide the Kicker box all the way to the corner. The woofer fires from the middle between the seats at the armrest. This particular box doesn't work well like that. It was designed to be behind the drivers seat, so I can only cross it over to about 80 hertz before you start getting noises you don't want. The Ford cab rattles, A LOT, compared to the Chevy. I'd like to get one of these designs or the newer L series, but my woofer just won't wear out and give me a reason to buy another one!
Sounds like a good problem to have! Thanks for the love - and for sharing your experience.
@KICKER-AUDIO I couldn't be happier! I have had that sub for almost 17 years, and it still jams like the day I bought it!
Pretty please release the TS specs on your passive radiators❤. Fun fact I took your 8” truck box passive radiator and drilled a hole in the center and added bolt and washers for weight. Took it from your 49hz down to about 38hz. It has a much wider range now and less peaky.
I have a Comp Rt 12 1ohm in my enclosure. Thank you Boys!!
I Bassed this in 1990... lol loved it!
My kicker box had the horn on top.
I'm so glad you posted this. I'm about to build a box for two 12s under my back seat but I'm under the sqft I need. This will definitely be my option instead of a seat lift. I hope TERM-PRO can adjust for this. Thank you
And passives are cheap. Did u get it done my guy?
So it’s okay to use one passive radiator for 2 subs or will I need to passive radiator
Yes, but thats not what we designed it for. Adding more resistance (more radiators) will significantly effect the tuning frequency.
@@KICKER-AUDIO so I shouldn’t use I 1 passive radiator with 2 subs
@@diegoibanez8318 We made the 12" passive to go with the 12" CompRT (and the active CompRT 10" with the 10 passive, etc....) Of course, you can try your own combinations, but the results will certainly be different.
Good video Man. Can you link me to the exact configuration of that kicker box with sub and passive radiator
Here are all of our loaded enclosures www.kicker.com/loaded-subwoofer-enclosures
Passive Radiators also make amazing Beardie Trampolines
The physics is counterintuitive but they are NOT negative-phase to the enclosure's active driver. They are within 90° of phase and so can be mounted on the front baffle without excessive damage to the output's phase.
We need a 15in version too! For even lower tuning.
...or you could get 2 of the enclosures. One option for you.
@@KICKER-AUDIO Design an octo box with 4 12s and 4 passives. That would be nice!
Very good Info !
Hello can i ask which is better for you between thin or thick passive radiator when it comes good sounding?
I have just got my first Kicker product and the 48TRTP122 12 box for my Infiniti QX56. The 2 Ohm version is good but not had deep and consistent as @ 500watts. The Old Rockford Fosgate 12 with the amp sounded much better and cleaner with bass. I am going to let the break end period to see if any improvements are made. Kinda sad for me
Was the RF a thin sub too?
@@KICKER-AUDIO no it was as thing and flat as the Kicker but the RF had a 300 watts amp built in
Great explanation.
Could you cut the box in half, make it deeper to keep the same air volume, and put PR on the back of the box?
As long as you have the same air space, yes.
I always wondered if this specific box would fit behind the gladiator backseat
Best way to find out is to measure that area you are comfortable using for a sub, then compare to the specs we have published. If you need help determining any of that, don't hesitate to reach out! Tech support is available weekday from 8-5c either by phone: 405-624-8510 or email: support@kicker.com.
Would there be any negative effects if I replace the passive radiator with an additional comp rt subwoofer. Looking for a small enclosure with the most bass.
Each active sub needs a certain amount of airspace to operate properly, especially at lower frequencies. You would gain volume at the upper range of bass (assuming you're doubling power as you double the number of active speakers in the enclosure) but it wouldn't play as loud on the low side of the spectrum.
The first few words....loooooool 😆
I have the 8 inch version in the wife's Ford edge..very nice job..I like it a lot.
I had and original kicker box by Stillwater Designs. mid 80's
i had the same. sounded great. and cant find them anymore. i dont want just subs,
but the full range speakers sound to throw in the back seat
Doesn't the passive radiator need to have twice the displacement as the driver?
It doesn't, since the radiator is the replacement for the air spring that the port traditionally provides. The resistance of the radiator determines the tuning frequency of the enclosure.
Looks great ,maybe they could have added grill covers so the 2 do not slap into the seat🤔
We chose not to include them in the box so we don't force you to pay for something you may not need. If you need grilles, you can get them here: www.kicker.com/subwoofer-grilles
What happens if u use a pr in a larger box, say double volume but everything else is the same (pr mass, same woofer...)
It will drastically change the frequency response and probably change the power handling as well.
@@KICKER-AUDIO in what way, I mean. Lower frequency? Less effecient, higher power requirements?
Please make the kicker super 2 box again
A lot of people are confusing ported speaker boxes are louder, more powerful than sealed boxes. This is not true. Back to the past when I studied electronic courses at Devry University, a speaker driver in a sealed box sounded much louder than without a box. The main purpose of a ported box vs a sealed box which can give you the lower frequency response. Passive radiator is a substitute of ported one but a smaller speaker box.
When will the 48TRTP122 be in stock again?
I had 2 of these 12inch subs in a down fire box ran off a DX 1000.1 amp. Someone broke into my truck and stole the box. I need to replace it now. Would this in your 12 inch down fire be ok hooked up to the DX 1000.1 amp?
why no square passive radiator version?
Because with an active radiator, the resistance is the goal, as opposed to an active sub where moving air is more important. But you raise a good point. A matching square radiator would be cool.
@@KICKER-AUDIO only do it if there benefit to efficiency and performance but i would like to have a square version with passive radiator I think it would be cool too!
I liked the video, just because I didn't have to watch an ad.
Which would hit the lower notes and still have punch? These with the passive radiators or your L7T boxes?
A bigger box will go lower, but some people simply don't have the room for one. This is why we made the thin enclosures.
wished I've seen passive radiator at my first and only DIY car sub 15 years ago. I did not like the port noise besides I found 12 inch and 400wrms to be too powerful for my taste.
Would this fit behind the seat of a toyota tacoma 2017
The only way to know is to take measurements. We have several slim subwoofer models & sizes to choose from: www.kicker.com/loaded-subwoofer-enclosures
Ok so I have 2 compr 8’s and thinking about building custom fiber glass boxes. Can I forward fire the sub and down fire the passive radiator? Odd question but i see it in home audio but never on car audio
It's not ideal, but you can, yes. It's preferred to have the active sub and the radiator on the same plane.
I'm planning on getting the 48TRTP122 12" box for under seat in conversion van...how best to mount it?...Thanks
Would it sound awful if I remove the radiator and install another 10”
You would get more volume at certain frequencies, but it definitely would not play as deep.
@@KICKER-AUDIO so is it better to leave it as is ?
@@edp9517 Exactly. The active sub relies on the passive radiator for proper tuning.
Do you lose snap with these? I currently use a sealed box because I love fast, snappy, hard bass. Seems often than not a ported box starts to flutter with a decent stretch of fast bass. Can sound kinda muddy. What are your thoughts? If I can keep the snap and increase bass volume maybe I'll give it a shot.
As you've probably heard said on UnMasked, there is no such thing as a perfect sub enclosure. You love tight, snappy bass, so a sealed enclosure is probably going to be your preferred enclosure. People that love deep bass will likely enjoy a ported box more. You can make up for some of this in EQ and crossover settings, but nothing factors in more than the enclosure itself and the car's dimensions (the OTHER box you have to contend with). Make small adjustments at a time. Experiment. Then hit us up with questions!
I have a p300 12 its snappy but id like a tad lower notes its a new civic23 hatch. The fosgate is tight of course sealed but id like lower note’s would this perform better? Ty
Makes sense 🤔
im looking for a good 10 inch woofer for mainly rock & metal music
im accustomed to a 12" alpine type R and a random pioneer 10" i picked up second hand.
id like a 12, but dont want a big box. a standard 10 suits my needs perfect but id also like to get something shallow. looking for tight response but also the ability to keep up with volume, AND be shallow, maybe even down firing
We have 4 options that fit that description. The main difference is power handling. Check out the CompRT (likely the one you'll choose), L7T, CompVT and Comp loaded enclosures: www.kicker.com/loaded-subwoofer-enclosures
Can you help me design a 4th order using a passive radiator?
Tech Support can help. Reach out to them at 405-624-8510 or support@kicker.com. They are open weekdays from 8-5 cst.
I told the guy the subs don't match I can't buy them😂
What’s the best amp to use with the Kicker 48TRTP122? Should I use the Kicker Amp 46CXA4001 or the Kicker AMP Kicker 46CXA8001?
At 2 ohms, the CXA800.1 makes perfect sense.
Is it possible to pair 2 12" passives with 1 comp q 12" in a 1.4 cu ft box?
It's possible, but the question is the goal of increasing the resistance, since it means changing the tuning (tuned deeper). However, deeper tuning means the top end of the tuning starts to dip down. Deeper=less musical.
What about the comp c 10 in
What u mean 180 degrees out of phase
I know it says to use a compatible subwoofer, but what if I used another brand subwoofer (I have a 10" dvc RF) - would it still work?
It will operate but the frequency response will certainly be different. How different is hard to say, as the radiator is weighted specifically for the CompRT.
Is there a square passive radiator for an 8” l7t?
I’m trying to get deep low end extension in a thin inclosure 4” 0.45cubes.
Here are the radiators we offer as standalone products: www.kicker.com/kbrw-passive-reflex-radiators
What are the tuning hz of these in the 10in and 12in version. I like bass around mid 30s to low 30s.
The tuning for the CompRT thin sub enclosure is 42 Hz for the 10". The 12" is 35 Hz. There is always a tradeoff with thin subs, limiting stroke and available airspace. You can overcome it to an extent with power, but there are stresses on the cone and voice coil in trade. If you are looking for a deeper tuning frequency, you might be better off with a bigger enclosure.
@@KICKER-AUDIO sounds like 2 12" will be good if i have room to mount them side by side behind my seat. At 35hz i should be able to get decent low bass.
I bought one of this box and after E months it got cooked speaker coil was fried
It is extremely rare to a subwoofer coil to be destroyed right out of the box, but not impossible. If you bought it new from an authorized dealer, it should be covered under our warranty policy: www.kicker.com/warranty
U guys need me to design subs w/ passives, I got 2 - 4 1/2 in subs with 5 passives and it sounds better than most peoples cars that haves 1 good 12
Using radiators is often a great idea if you know how to use them. It sounds like you do!
What about the 12 inch square sealed compared to these?
You can use a round radiator with a square sub. The effect is the same, but you may need to change the quantity of round radiators, since the squares have about 20% more area.
@@KICKER-AUDIO no I'm asking about your product The 12-in L7 sealed box. I have that product I'm asking how they are compared.
We make 4 lines of L7's, and all of them have a single 12" option. Let's assume you mean the L7T, which is the closest one to the 12" version in this video. The L7T takes about 100 watts more power and has about 20% more cone area, so it will be a bit louder with appropriate power. However, the CompRT in the video will go a bit lower, thanks to the radiator. It's a bit of a tradeoff. The L7T enclosure is also slightly thicker than the CompRT, by about 1" on top and 3/4" on bottom.
@@KICKER-AUDIO dude what is your problem do you not read? Why you keep talking about four lines of l7s it is your product The 12-in L7 in the down firing subwoofer box. How the hell does that compare to this one is all I want to know
@@abdomination do you not read? He's making comparisons between the two. The L7 has more cone area/rms so it'll be louder. The Comp has a PR so it'll go deeper like a ported box could. That's how the two compare. Stop being an ass and ask your questions politely
Makes me wonder how 2 active drivers would compare in the same enclosure...
Since we made the airspace (and the passive radiator) specifically to work with a single active sub, it might get a little louder but be a "one note wonder." It doesn't have enough airspace to work with two active subs at the full acoustic range of a normal CompRT under those circumstances.
@@KICKER-AUDIO wow you guys are awesome for actually responding to comments! I figured the enclosure wouldn't have the proper volume for 2 drivers, it's impressive enough that one can work in such a small airspace
💪🏼🔊
So basically a passive radiator is a fake subwoofer 🔊?
Very much no. A passive radiator serves the same function as a port (offering a very specific amount of resistance), without the possibility of port noise, and in a far smaller box. It's quite effective.
Can I run 1ohm skar amp on set of 2 43TCWRT82?
Yes, you can run two of those enclosures and get 1 ohm. We normally recommend being within 20% of RMS. If your amp does 480-720 watts (those enclosures are rated at 300 watts RMS each) at 1 ohm you are within the recommended power range.
@@KICKER-AUDIO thanks I got skar 800 monoblock
Ported > passive
I own a pair of those kicker 12s with a passive radiator 12"
Do you have a video of it?
Nice little set up. Kinda pricey though
Someone who wants to experiment should use a regular driver and use it as a PR. The tuning could be done by adding high power resistors on the poles of the driver🤔🧐
Mines blew out in less than a hour 😆
There are many reasons why a sub blows. Incorrect tuning, over/under powering, incorrect installation to name a few. Of course, manufacturers defect is a possibility, and that is the case we will honor the warranty. The important part is to find the reason, whatever it may be, or the issue may well occur again. Contact Tech Support at 405-624-8510 to diagnose the issue. They are open weekdays from 8-5 cst.
@@KICKER-AUDIO thank u they gave me a store credit but charge me shipping sow I did not completely lose all my money .I could respect that
Displacement laws of physics disagree m8......it kicks at the same time as the driver bro 🤦♀️🤷♀️
passive radiator??? means to lower the cost or budget for maximum happiness.
In this case, maximum happiness comes with a thin enclosure that fits where it needs to and still sounds great. 🎵🔈🔈💪💪
Passives were invented in the 30s 🤦♀️🤦♀️🤦♀️🤷♀️🤷♀️🤷♀️
Here’s your 🍪
He said they were making a resurgence in kicker products
500th like yup
Next video should be why not to buy kicker
Someone else will have to make that one.
@@KICKER-AUDIO 🤣🤣😂
Nothing cool about these port's are better because when I put my ear up on the hole my ear begins to Ring. And if you're not smart enough to get a Port in a box like that then why are you in the business kicker sucks anyway.
Were smart enough to use a radiator when using a port makes the box too big.
@@KICKER-AUDIO ok duh if you were that you would see that there is such thing as a small port and if done correctly it will still sound good and it'll still bump but you obviously don't know how to pull that off it's not rocket science.
@@kellynorman5262 clearly you don't know much about audio technicalities
You can't just slap a port on a small enclosure and expect it to do it's thing, it just doesn't have enough space to really put the ports on their proper functionality efficienctly, learn about Hoffman's Iron law smh
hahaha it looks like it has a black eye
Or...winking? Maybe?
More bs scam
What is, exactly?