Speaker Polarity - パソコン用

Installed new speakers, head unit, and amplifier in my project truck. When using the factory wiring to connect to aftermarket speakers, it’s challenging to know the correct wiring schematic, even with a harness. After install I wanted to see if I did the wiring correctly... nope all speakers out of phase. This app gives a simple “-“ or “+” based on the phase of your speakers. I would have given 5 stars, but this app must of been created in an hour. It’s very poor with little to no instructions. What I did. Visit the app designers website on a Windows or OS computer and download their “Speaker Pop” audio file. From there I added the “long pop.wav” file into iTunes. I used my iPad as the music source (plugged in my iPad to the usb of my stereo), then used the app on my iPhone to read the sound from the speakers. The app used the microphone on your iPhone to read the signal. The microphone is located where the charger is (bottom of iPhone). Make the wire swap at the speaker, behind the head unit, or amp (my case, the amp under my seat) then test again. The test is only good for mid-speakers (door speakers), not tweeters (locates usually in the A-pillar or dash).

Just built a new audio system in my car and I was struggling with some weird polarity issues coming from the OEM head unit. I downloaded and burned the WAV file to CD and played it on repeat. And then one by one I could test each speaker simply by hold my phone near it. Brilliant!

I recently hooked up surround speakers in a house that was pre wired for them. Unfortunately whoever wired it chose to use plain wire without any indication of positive or negative. I was strongly suspicious that my speakers were wired backward, and I found this app. Sure enough one of the surrounds was out of phase, and after fixing it they sound dramatically better! This is one of those apps that is well worth the 5 bucks. I'm very pleased. Thanks!

I installed an amp and upgraded speakers on my motorcycle. Took great effort to install everything according to my wiring diagrams. After it was all done my front speakers just didn't sound right. Same speakers as the rear but nowhere near the quality as the rear speakers. I took the bike apart to check my work. I did it right but using a multimeter I discovered that the original bike wiring was wrong. POS and NEG wires were backwards even though color coding and connectors were correct. Strange I know. I fixed it but something was nagging me about it. Was the factory wiring really wrong? Could it really be? Researching and double checking my thought process on what I discovered and "repaired", I came across this app. How simple could it be. 5 minutes after purchasing I verified that now my speakers are indeed wired correctly. All I can say is THANK YOU! I only wish I could have had this before I redid the wiring to show me it was audibly wrong at the time. Better late than never and the piece of mind is well worth the price of the app!!!

I installed new speakers in my car recently, and could tell something was just "off." I did some research on my own, and concluded it was most likely a polarity issue with the speakers. I didn't want to buy an expensive polarity testing device, so I looked through the App Store store and found this app. Trust me, it works. In less than 5 minutes, I installed the app, hooked up my phone to the car stereo, and tested all 4 car speakers individually. The test showed me 3 out of 4 speakers were connected properly with a positive polarity. I switched the wires for the one that came back negative, and re-tested it. Everything was positive and the music sounded full again. :-) To The Devs: Thanks for taking the time to make this stand-alone app, it really helped.

THE BEST FIVE DOLLARS I EVER SPENT IN MY LIFE!!!! This is the best app I have ever used. Period. Something didn't sound right in my car stereo after upgrading the speakers, which required cutting the factory harnesses. It turns out the Crutchfield and other available schematics had the colors of + and - opposite to my car's factory wiring. It could be due to my car being a very limited run car (the only one I know of and that the dealers knew of). After spending a lot of money on a sound system, I didnt want to be in another $200 to buy a phase tester. THIS IS IT !! BEST 5 DOLLARS I EVER SPENT IN MY LIFE!!! If you have an iPhone and need a phase test tool this is it.

I have it. I'm trying to figure how to us it. Would it be so hard to write STEP BY STEP INSTRUCTIONS telling how? like should i turn the signal output on or off? Like you say "select speaker type" Where would I do that?? How come you don't think about the user? It might be a good app, but you won't bother to explain usage. Is this digital, nonhuman, lack of understanding the other person's position ? Would it be so hard to present step by step instructions? Really! you put this up cause you enjoy this stuff but you also want to sell it, right??? So why be inconsiderate of the user? Yes, I'm p.o'd. I'm tired of gibberish.