3 ways to correctly judge the positive and negative horns
Method 1: Using a Dry Battery To determine the polarity of a Speaker using a dry battery, connect the positive terminal of the battery to one of the speaker’s terminals. If the cone of the speaker moves inward, that terminal is the negative pole. If it moves outward, then that terminal is the positive pole. This simple method works because the current from the battery will cause the voice coil to move in a specific direction depending on the polarity. Method 2: Using a Multimeter Set your multimeter to the ohms (Ω) setting. Touch the two leads of the multimeter to the speaker terminals. You may notice the needle or display moving slightly. When you push the cone forward (extending it), the reading should be more stable, indicating the correct polarity. If the cone retracts when touched, it means the polarity is reversed. This method helps identify which terminal is positive and which is negative based on the movement of the speaker cone. Method 3: Checking by Color Coding Most audio cables use a standardized color system to distinguish between positive and negative wires. For example, a solid-colored wire is usually the positive lead, while the negative lead may have a thin black stripe, dashed lines, or a different color pattern. This makes it easier to identify the correct connections without relying solely on markings on the speaker itself. It's important to ensure that the positive and negative poles are correctly connected. If they are reversed, the speaker will still produce sound, but the tone may become muffled or distorted. In some cases, especially with multiple speakers, incorrect phase can lead to poor sound quality. If you're unsure about the polarity, you can listen carefully—when connected properly, the sound should be clearer and more defined. If not, consider using a phase detector or consulting a professional for accurate identification. Always double-check connections before powering up any audio system to avoid damage or suboptimal performance. Battery Siren,Home Battery Siren,Battery Back Up Siren,Battery Back Up Alarm NINGBO SANCO ELECTRONICS CO., LTD. , https://www.sancobuzzer.com