Big 3 Upgrade: Real World Before & After Results

gpcaraudio.com/...
We know there are many advanced bassheads out there that know all about the benefits of the big 3 on even smaller setups, but seeing an actual before an after comparison of the true results is rare. We'd like to paint a picture of how drastically it improves your overall performance for people getting into the hobby. We have seen people skip this step and purchase a larger amp to not even get these sort of gains so simply showing you guys with even the smallest budget how beneficial doing this can be. The GP 1/0 pure copper Big 3 we have been keeping at the absolute hook up price of $50 shipped to help people get the electrical fine tuned properly with the highest quality on the first try. Our wire is SAE Certified, Made in the U.S.A.
If you have not done the big 3 in your ride, this is the most affordable and simplest step to getting louder.
gpcaraudio.com/...

[@codyscott1161]

I rarely ever comment. But just to let everyone know, big three is a great idea regardless of the purpose after. It keeps all vehicle electronic running smoothly. At the factory, they use the smallest and cheapest wire to get the car out the door. Keeps your alternator from overworking on normal loads.

[@midlandkelly9840]

Thats the main reason ima do the big 3 so my sound system don't drain alternator or battery

[@xxxYYZxxx]

1.4db is considerable, but saving wear on the alt & battery is even more important. Even supposing no db gain, the Sound Quality gain from doing the Big 3 is reason enough.

[@drewcarr8191]

xxxYYZxxx so doing a big 3 will help conserve your battery & alternator?

[@CrazyHackpod]

@@drewcarr8191 yeah, the alt can run cooler with the big 3

[@elplopplo]

Holy phone notifications

[@crazyeye1]

elplopplo this comment actually made me laugh like a maniac in my room at 11:30pm

[@RebursPsychology]

I was thinkin what is this dude talking about..then i saw 🆎🆎🆎🆑🆎🆑🆎🆎🆎🆑🆑🆑🆑🆑🆎🆎🆎🆎🆑🆑🆑🆎🆑🅾️🆎🆎🆎🆎🈲🅾️🈲🆎🆎🆑🅾️🅾️🆎🆎🆎

[@davidwinn8492]

☠️☠️☠️

[@Ljtaz1122]

I see allot of comments saying they not worrying about the gain or is it really necessary... well I guess these guys never been in the lanes cause if you've ever been in the lanes then you would kno that every decibel counts whether it's to the ear or not... long as the meter read the gain, then that's closer to the winners circle you will stand. Gj Gpaudio on the 1.4 gain

[@TheStonerzombie420]

I'm just commenting so you'll have another notification.

[@162mikey]

Lmao i was thinking, damn I've never seen that many notifications 😂

[@jaysonoliveira4752]

I noticed a difference running 1300rms on all stock,130alt 800cca battery. All ofc 4 gauge. After the big 3 also 4 gauge I noticed my car had a bit more pep in its step also. Not that I had issues with lights dimming prior or SQ , it does make a difference for short $$$$

[@stevejackson2358]

What was the difference in voltage at the amp? (VOLTAGE DROP) before and after

[@bryanw8651]

Steve Jackson thats the first thing i thought.

[@thabopoo6285]

Rubbish test

[@kbaldeo]

Steve Jackson exactly! That’s what you have to test.

[@Tom-wq2mz]

Good video. I'm running 2 1500 watt Rockford Fosgate amplifiers and 2 18" Crossfire subs. One amplifier per sub. I started out with 4 gage cable a month later 200 amp fuse popped I went to replace the fuse and found that the 4 gage cable going in to the fuse block was burnt and coating was melted. I replaced the stock 63 amp alternator with a 120 amp alternator and done the big 3 as well as running 0 gage cable with a 500 amp fuse in line from the battery to the distribution block and 4 gage cable Y out to the amplifiers. I highly recommend the big 3 and a higher amp alternator. Again great video keep doing what you do.

[@Tom-wq2mz]

itsdatruff Thank you

[@Fall3n_Ang3l]

Awesome example of the big three power upgrade can do mane

[@kingkilla421]

big 3 is a must have when you get a h/o alt but this is cool to show it can help a stock alt. i remember getting my 370 amp alt load tested at a shop with out the big 3 done, and the guy at the shop told me strait up he put the load to the alt for a few sec cuz he was worried about burning up my stock wires.

[@theinsaneunknown]

Your notifications have notifications!

[@psementalist]

Totally amazing how much a simple a big 3 can make in difference between having it and not having it.

[@tylersime5665]

yo thats dope never thought a 18” woofer would fit in the trunk of that impala. i have a 15” goin in mine. dope impala bro

[@joeb9793]

I heard you say to rev the engine up to 2,000 RPM right before the 2nd test after the "Big 3" was installed. Did you guys hold the RPM's at 2,000 when you did the initial test?

[@gpcaraudio]

yes correct, I was just reminding him on the second run. we have tested this vehicle on multiple occasions, termlab magnum and spl lab, and the highest score we could ever achieve on either meter was a 141.0 at a rev, before the big 3 if he wasn't revving his highest score was 140.1

[@joeb9793]

Thanks for the quick response.

[@marknowakowski6590]

1.4 Db is that worth the extra cash for this upgrade????? What did the wire cost and was it cca or ofc and what Gage and how many strands in the cables??????

[@bdanyluk]

First part of video vol is 28. Second test, person said, put it on 29.....so not the same volume.

[@8ten820]

well done. will be upgrading my electrical with GP this year...need to get a car first. anybody built in a Outback hatchback before? subs up port back?, etc. The alt is sooo easy to get to.

[@gpcaraudio]

Whats up man, I've not worked on an outback hatch before, be sure and tag us in the build progress

[@mrwnking]

I'm want to do the big 3 upgrade to my 2012 Impala LT. I'm just trying to figure out how to run the lines. You got a video on it with that impala.

[@moisestheentrepreneur637]

4 gauge big 3 is enough unless you running a 250+ alternator

[@RealPivotTV]

better to have more than you need I wouldn't do it unless I was using at least 1/0 Gauge wire. You never know what the future may bring. I am gonna use 4/0 gauge on mine.

[@8ten820]

Yeah, for sure. Maybe 2 havoc 12's ported. Will see

[@bullfrog8210]

Someone needs to clear out his notifications!!

[@mikep3322]

I have a skar rp 1500.1 on massive gtx 12s and big 3 on stock alt. Should I upgrade alt or get an extra battery. It's an 07 pt cruiser

[@1mty0]

I can do it with caliber 4 of the alternator to the battery and without fuse or i can put a fuse of 100 amp

[@pmcalis1111]

Solid gains.

[@KINGKJ2REAL]

I did the big 3 upgrade on my mustang it only made it easier for my amp to take even more power making my lights dim the same amount if not more lmao

[@gtavtheavengergunnerlegend3340]

Sequoia Bass gotta swap alternators.

[@Fox250R]

KINGKJ2REAL Haha same with mine

[@dank9288639]

yeah because the "straw" is bigger so now it can rape the fuck out of the alternator with those 0g wires going to it

[@RealPivotTV]

this is when you get a bigger alternator

[@terot8341]

Well those 0/1 AVG wires are BASIC for any caraudio instalment, not just for db. I used that wire for my SQ setup with one RF 5-channel amp. And that +1db rise can come from lots of things, e.g air temperature, doors/windows open/close, driver's and/or passenger's position.

[@dylanrap9778]

What App is that meter?

[@christopherseales2713]

Can I do the big 3 on a 150amp stock alternator

[@cin5cin1nat3i]

Christopher Seales yes

[@gabin551]

why arent you showing the voltage before and after the big three??

[@gpcaraudio]

There's no system in the vehicle yet, we just started building the car

[@jamiewatling7671]

change in air temp

[@anon7039]

air density - just posted a statement on that before I saw yours

[@boomjeep99]

Was runs identical as in I didn't hear car rev first run .was trunk open/ closed both and windows same ? Plus volume

[@gpcaraudio]

Marty Burden yes runs were unchanged, this was only adding the big 3, and he did rev on the first run, the second run you just hear me reminding him because he was not. we have tested this vehicle on multiple occasions, termlab magnum and spl lab, and the highest score we could ever achieve on either meter was a 141.0 at a rev, before the big 3 if he wasn't revving his highest score was 140.1

[@boomjeep99]

www.GPcarAudio.com ..ty for reply and I've seen guy say wow big 1.5 db gain..man if ya a basshead that's a gain no matter what

[@drgnhilord6900]

that test showed absolutely nothing. that 1db can be chalked up as errors in your testing.. simply holding the phone a different way like u was could of caused that, having the phone close the the back seat could of changed that.

[@gpcaraudio]

drgnhilord6900 this is the SPL lab USB meter on the same spot on the dash, this has nothing to do with a phone mic, this is an actual $400 pressure sensor on the dash that runs on android software or Windows, calibrated with the termlab. we use this meter to prep for all competitions, and is accurate within 1/10th of a db in the lanes, we before and after meter absolutely everything.

[@drgnhilord6900]

www.GPcarAudio.com even with the $400 meter that is not a big enough am out to say it was can ged by the big 3 upgrade. anything could of caused that minimal change. now I'm not saying a big 3 upgrade isn't a good idea, all I'm saying is, I don't think the cost and time for a 1db gain is worth it if that's the reason your going to do it because the change isn't significant.

[@drgnhilord6900]

I'm not trying to talk shit man. just saying that minimal gain could of been caused by human or equipment error..

[@gpcaraudio]

drgnhilord6900 we meter absolutely everything before and after, and this is one of our team members who never achieved this score in the lanes, it was a confirmed a legit gain from all perspectives, from our testing and 3rd party. this is what we do man, build test build and test. it's not rocket science.

[@gpcaraudio]

drgnhilord6900 just some advice, observe many of the other videos on the channel, you'll see what we do, we live this life.

[@MrKillerRC]

Close doors and windows when you check dbs

[@TheWarcraftIII]

He didn't go to full max on his stereo the first round and the 2nd round he probbly went atleast to like 29-30 or something compared to 28 like the first round

[@logancrowe2914]

What is the song on the 2nd meter???? I’ve been looking for it forever!!

[@ChiTownRaised]

Lord Infamous- Is anyone out there

[@cn001252]

Gucci mane- trap house 3

[@lmadden6236]

if he did 2 12s or 2 15s in the right box.. he would do even better...

[@gpcaraudio]

he's planning on doing 2 15s sealed into the car

[@b_doc6142]

I wanna get big 3 done also but I have brand new Chrysler 200s and the alternator is buried under the engine, and the audio place said they have to take bumper off and gonna cost a lot, and the dealership wont mess with cars under warranty and also will only install stock alternators @ the dealership. I notice that's an newer car that u installed the big 3 on. was there an easyer way to get to the alternator, cuz that car look like similar location

[@gpcaraudio]

this one was real easy to get to, it wasn't too far down. I'm not sure where your alternator sits but it may be as simple as just needing to jack the car up and go in from underneath

[@gulenator]

I like how you say impala lmao😂

[@maryjoanmontalvo9153]

Stock Alternator? Just bought the same amp. Rp1500.1D and been wondering if I need to upgrade my 95amp stock alternator. Thanks in advance!

[@2guns908]

Mary Joan Montalvo yes! For sure I had the rp2000.1d ,my truck comes equipped with a 140 ho alternator and I have a cheap duralast agm battery it wasn’t enough so you’re definitely gonna have to get an nice alternator battery and good ofc wiring with the big 4

[@maryjoanmontalvo9153]

John Doe Thanks for the tip.. Keep'em low fella basshead!

[@mrrr407]

Good music choice

[@san1543]

can someone explain why we add zero guage wire

[@alabamaautoenthusiasts22]

Diamods and Stars morneoower can go through bigger wires.

[@JustinKirby]

The same reason firemen use big ass water hoses instead of garden hoses - to get more through it at one time.

[@jman102791]

Doesn’t necessarily have to be zero any thing bigger then the little wire the have preferably 4g or 0g

[@ygbodybuilder3023]

Is a fuse holder nneeded for the big 4 uograde

[@vanessal7291]

How many times did you have to repeat big 3?

[@1-Six-dee]

Nice gain cheapest gain he will very get

[@liftingheavy1]

That box looks pretty small for that sub. What are the dimensions/specs for the box? Nice set up too by the way!

[@kevincharles1983]

The box literally takes up the entire trunk. I don't know what angle you saw it from but that's a big box

[@Infanitunit1]

I’m late but I believe certain dc subs font require crazy air space

[@ryzenpeak]

​@kevincharles1983 like the other guy said it's the kinda sub those are crazy things designed for stupid large boxes and wall builds, so there's a chance it is a little small lol

[@mikeduran3529]

My buddy has 1 hippo 15 and a hifonics 3000x1 and it hits 151db

[@jimdavidson5208]

So....... Bet the total system sounds like dog shit.

[@MrMcShades]

I highly doubt this claim, sounds made up to me...

[@charliehull1326]

Can u just run a 8 gauge wire along side your stock wires to achieve the same affect

[@FGarray]

8 gauge isn't really big enough for most applications, if you want to do it and make it worth your time then you should use at minimum 4 gauge, if not 2 or 1/0 gauge.

[@tatsumaru12345]

It'll help, just not as much. Especially ofc 8ga. There's 2ga welding wire 20ft on amazon for 38$ right now. Not bad stuff.

[@deeznuttz7980]

What's the name of the app your using on your phone

[@neobreaker91]

I'm new to setting up subs, I know how to wire them but, how do I know what to set my head unit to for the settings like bass, treble, mid. I'm running 2 Rockford Fozgate Punch 12's. I am currently using a 400w Dual amp to power them, someone gave me a 1000 watt Xplod amp that I was thinking of upgrading to, but I don't really know where to set the crossover frequency or the gains, or the head unit settings. I don't have any fancy meters or money for them or anything so I don't know where to start tuning.

[@neobreaker91]

@Travis Hamler Thanks for the info!! One more question if you dont mind, I played a 50hz tone across the head unit with subs disconected awhile back, but thats seems to have blown my door speaker(09 mustang) any tips on how to avoid that in the future?

[@neobreaker91]

@Travis Hamler As far as I know everything in the doors is stock. It comes with the shaker 500 system, so one mid speaker and one smaller sub in the door. The mid is what I believe to be blown. no crossover settings that I see in the head unit, just basic like Bass, Treble.

[@neobreaker91]

@Travis Hamler Right now I'm using 4 gauge run from the engine compartment to the trunk, with a fuse by the battery. I'll have to try and make a video sometime of my set up and link you to it somehow. It's nothing fancy, but you sound like you really know your stuff so I'd love to get your opinion on my setup. I'm new to car audio, but am pretty electrical/mechanically savvy.

[@Cmoney860]

@Travis Hamler hey Travis, just came across your comment and thought I would run this by you. Cant hurt right? Worst case scenario is you dont respond. I recently purchased a one-owner, bone stock 1st Gen Toyota Sequoia. I am looking to upgrade some things on it. Starting with tossing those stock JBL 6.5 in the doors, adding a subwoofer/amp setup, and definitely need a new head unit. Really like the 11 inch Alpine Halo, but that alone is over a grand. But I been looking at Chinese knockoffs for half the price that actually have more to offer. Subs, I am thinking one JL 12inch, or possibly two 12's. The doors I am gonna stick with 6.5, just better. My thing is I want a clean looking setup, and do not want what I had in the early 90s, which was that trunk rattling bass. But I do want a nice deep tone. And with the size of this huge truck, i think a decent 12, like a JL w6 would do the trick. But that is pretty expensive in itself, without the amp. I say all that to ask you what would you run if you were going to do the truck for yourself, keeping sound quality and expense in mind? I wouldn't mind having you do the install since this is your fortē. I do not know your whereabouts, but I live in Los Angeles. Anyway, let me know what you recommend when you get a chance. Thanks bruh

[@Cmoney860]

@Travis Hamler bro thanks so much for your time and your advice. Much appreciated. And most likely, I will be in touch. Can guarantee that much. Thanks again my dude..... Happy Holidays to you and yours....

[@shawsheen]

Does it come premade with connections soldered?

[@levellepartee7295]

Whay kind of head unit is that

[@Chip-Monk]

That's what i wanted to know

[@supermanwhereareyounow3081]

Isn't it best for any sound system above 600 watts rms to upgrade the alternator first to 240 Ampere?

[@MrS22222]

noooo

[@RealPivotTV]

So for any system the best thing is to make sure you are running good 4 gauge or better OFC cables as well as a good fuse block and battery terminal connections. Good rule for your fuse is 10 amps per 100 watts so if you have a 1000 watt amplifier then it's best to have a 100 amp fuse. You could go a little higher but remember the reason for the fuse is so it will blow if there is a surge that way it protects your amp. So if you go too high with the fuse it won't really help. I believe in having more than you need when it comes to cables so I always use 1/0 gauge wire. Don't worry about strands it matters more about how much actual copper is in the cable so make sure you get a good brand. Sky high audio makes really good cables and Spartan wires makes good cheap OFC welding cable and thats what I use. Then make sure you have good ground connections. I always go straight to the frame. For a 600 watt system that should be enough not to have a voltage drop. For anything over 1000 watts I would do the big 3. Some people use 4 gauge wire for that but again I believe in having more than you need so I would do at least 1/0 gauge and in mine I used 4/0 gauge that way I know it will handle anything I decide to install. You don't have to have a huge amp to do the big 3. It's worth it in any car even if you don't have a system at all. Like someone else said the car manufacturers put in the smallest cables they can to save money. On a smaller system though like a 600 watt you probably won't notice any kind of difference. Now for 1000-1600 watts if you do all the upgrades I listed then that should be fine. For any system above 1600 watts then I would start to look at a HO Alternator and/or a second battery and definitely upgrade the main battery. Optima batteries are really popular for this. There are a lot of shitty HO alternators out there so be careful. Mechman, JS Alternators & Autotech seem to all have really good ones. Stay away from the cheap Amazon ones. In fact unless you have the tools to test this stuff or unless you have seen someone else test it I'd stay away from anything cheap made. Cheap made crap will cost you more money in the long run. I know your comment was a while ago but I wanted to actually answer your question with some useful info instead of being condescending.

[@oddyosmusico1344]

I need a tutorial video on a big 3 upgrade for a 2015 Malibu LS my check engine light came on. Even some pictures showing me where to put my wires would help.

[@bedell1981]

I'm running 3 twelve sundown sa with a 3k salt and xs extra battery all ofc wiring in my 2020 blazer do i need to big 3 upgrade?

[@RealPivotTV]

Absolutely. I can't believe you are not experiencing massive voltage drops already.

[@bedell1981]

Strange my volts starts at 14.7 and steady at a 13.5ish

[@quintonlitton6779]

Can running the big 3 damage your electrical or does it only upgrade it and make it better? And will it stop dimming my lights? I got a 2001 Ford explorer Eddie bauer eddition and my amp is a synergy efa 2k, would it be fine to run the big 3 in this case? Cause my voltage drop is really bad

[@gpcaraudio]

Hello, no it will not damage your electrical. It will allow your vehicle to flow more current. Highly reccomend it on your setup. There will be an audible difference if you do it properly.

[@quintonlitton6779]

@@gpcaraudio would doing the big 3 with oversize 4 gauge ofc wire be ok? I could run 2 complete runs for the big 3 and my amp kit wire I have is oversized 0 guage ofc.

[@RealPivotTV]

I would def recommend the big 3 in your case also make sure all your power and grounds are OFC and that your ground for the amp is on the frame not just the body.

[@justinmartin4027]

140’s with a lvl 4 18 ????

[@mrjerry2296]

justin martin 1500 wats ...way underpowered

[@omarvilla1844]

which app is the one you're using for the db meter?

[@gpcaraudio]

its the SPL LAB USB meter running on android gpcaraudio.com/spl-lab-usb-meter/

[@jfox949]

+www.GPcarAudio.com Hell yea bro. soon I'm gonna use the 2/0 big3 fro. you

[@barryweible3810]

Do you have a big3 kit that'll fit a ram 2500 diesel? Has dual batteries also a 2000w skar

[@gpcaraudio]

Hello, give us a call, the number is on the website. Monday through Friday 10am to 5pm. We have a ram diesel dual battery setup hauling truck with it done at the warehouse. If its the same year area it'll be the same and we can pull those measurements and make a drop in ready setup.

[@MandelMcLemore]

I have a Durango with stock 220 amp alternator and my batt is under the passenger seat do you have any suggestions

[@gpcaraudio]

I'm not certain on the exact length you need for the power run there, if you measure it with a peice of string we can alwaya do a custom drop in kit for you. Just give us a call at the number on the website. 👍👍

[@MandelMcLemore]

Do you have buss bars that fit shuriken bt140

[@MrBahe]

How did u run your Alternator run

[@overclockeverything2310]

When you have a Dollar Tree bag next to some J's LOL

[@jeremyvillegas572]

Fr

[@portmurphy1]

One way or the other huh?

[@vellowilson5857]

My battery is under the set, so how would I do the big 3

[@AllThingsThruChrist]

Did you find out ?

[@JayO1963]

Is he using an app to measure db?

[@gpcaraudio]

It's the SPL lab usb meter running on a android app gpcaraudio.com/gp-db-meters/

[@Darylsmith4565]

1.4 db gain?? Do I really want to put the time and labor in gaining 1.4 db???

[@treiber671988]

John D you must of past kindergarten

[@treiber671988]

John D 😂 oops

[@treiber671988]

John D I fail!

[@landsurveyorNC]

John D he went from a 141 flat to a 142.4, that’s a 1.4 dB gain. Why don’t you do us all a favor and shut the fuck up yourself.

[@landsurveyorNC]

John D you serious when you say a 1.5 dB gain isn’t worth it? 1.5 dB for 50$ is crazy good. I hit a 153.5 last time if I was on the meter last season. It’d take a whole lot more than 50$ to get me to 155 lol.

[@AlexMaturin]

Is it a noticeable difference to the ear?

[@gpcaraudio]

Yes, definitely

[@MrAwsomeshot]

db is exponential. it takes much smaller db increase to be noticeable to the human ear at higher levels. a 1db increase from say 50-51 is nothing but going from 140 to 141 is quite noticeable. in the firearms world people are always so suprised when a suppresor is rated for 21db reductions and they are like well that means my rifle will still be like 100db but they they shoot it and if you have ever shot a gun without ear pro you know it pretty much hurts... when you shoot with a suppressor and no ear pro the first time it becomes "practically silent"

[@UrodThaMixinMeskin]

What's the 808 mafia song ?

[@UrodThaMixinMeskin]

Nvm I found it it's Gucci Mane - Trap House 3

[@RCman9291]

Ur phone bugs me to many damn notifications holy shit

[@Nickvapes247]

Yo what app is that? Answer greatly appreciated. I run a skar RP2000.1D just waiting for the damn warranty for it to ship back :( #skaraudio @skaraudio

[@christopherbrock8913]

3/6 Mafia

[@ALVINDUCHANE]

bass sounds a lot cleaner

[@mikemasterson5437]

Way under powered.

[@MalSint]

Video would be far far better without irittating music at start

[@dakotaborrowdale9792]

what app is that?

[@comatose03]

Dakota Borrowdale it's an actual meter

[@jimdavidson5208]

It's called a waste of time shit cell phone app. Don't get too interested.

[@Tom-wq2mz]

What's the name of the song. Thank you

[@dutchiethaboss]

1975 PONTIAC CATALINA 400-THM400 trap house 3 - Gucci Mane

[@jimdavidson5208]

On that THX calibrated cell phone microphone. LOL. This video is a joke.

[@gpcaraudio]

jim davidson hi Jim, the measuring is coming from the SPL LAB pressure sensor located on the dash running on android software. This also runs on windows but makes metering more versatile on the go with the android software. This meter is calibrated spot on to the Term-Lab to the point that you can measure using the classic term lab calibration, pr the new magnum calibration.

[@gpcaraudio]

gpcaraudio.com/spl-lab-usb-meter/

[@gpcaraudio]

You can also search comparison videos of the spl lab meters to the term lab, and see they are spot on.

[@I_know_what_im_talking_about]

Is anyone else NOT impressed with 1.5 difference? Lol. You won't notice it inside the car. Waste of money.

[@celli351]

SPLBeast correct. which means less headlight dimming and sound cutting out

[@pyrolinn2088]

Actually I am impressed with that gain, but I used to hook up the beat for over 10 years so I know what I am talking about...

[@hoyt_arms]

The big 3 would purpose isn't to gain DBs lol its to help maintain voltage in your charging systemm and 2dbs is definitely noticeable. You're an idiot

[@Martin750hp]

This is dumb! All you have to really do is make sure when you install your system you have the right cables, the right wire , and all your grounds are done well! You don't need this BULLSHIT! I know cause I've been doing this since 1984 and I rock HEAVY ASS METAL MUSIC and PANTERA never sound so loud and clean!! period.

[@jimdavidson5208]

Where's the results? Some uncalibrated Iphone 2 shit? LOL What a joke.

[@marcello033]

Bad test man Outside with lots of other noice Doors open Test with a phone Different temp