Choosing the Perfect Live Mic: Audix OM7 vs Sennheiser e945

When it comes to choosing the right live microphone for your performances, two of the most talked-about options are the Audix OM7 and the Sennheiser e945. Both are highly regarded in the audio industry, each with its unique characteristics and benefits. This article will help you understand the differences and choose the best microphone for your needs based on your stage environment and vocal technique.

Understanding Live Microphone Specifications

Before diving into the specifics of each microphone, it's essential to understand some key terms that will help you make an informed decision. Two important specifications in a live microphone are its pickup pattern and output level.

Pickup Pattern

Pickup pattern refers to how the microphone grabs sounds from different directions. The Audix OM7 and Sennheiser e945 have different pickup patterns, which can significantly impact their performance in various stages and environments.

Output Level

Output level is a measure of how much electrical signal the microphone produces for each unit of sound pressure level. Higher output levels mean that the microphone can handle more volume without distorting.

The Audix OM7: A Low-Output Hyper-Cardioid Design

The Audix OM7 is a low-output hyper-cardioid microphone. This design is excellent for environments where the singer is very close to the microphone, such as when they are lips-to-windscreen. The hyper-cardioid pickup pattern concentrates sound in a narrow front lobe, minimizing unwanted noise from the rear.

However, it's important to exercise caution with the rear pickup. The OM7 has a significant null behind it, which can cause feedback if there are monitors or loud instruments in that direction. Therefore, when using this microphone on stage, it's crucial to maintain a consistent position and avoid any reflections that might interfere with the rear pickup.

The Sennheiser e945: A Higher Output Super-Cardioid Design

The Sennheiser e945, on the other hand, is a higher output super-cardioid microphone. The super-cardioid pickup pattern offers a wider front lobe while still maintaining a solid rejection of sounds from the rear. This design is ideal for stages where there is a bit more ambient noise or a slight amount of space to work with.

A notable advantage of the e945 is its higher output level. This means it can handle a broader range of volumes and is less prone to distortion when the loudness of the performance increases. The microphone's sensitivity to vibrations and handling is also slightly different, making it worth trying out in your specific vocal style and environment.

Frequency Response Differences

Both microphones have slightly different frequency response curves, which means they emphasize certain frequencies over others. The OM7 tends to be more focused, with a narrower frequency response, whereas the e945 offers a slightly wider range with better clarity in the mid-to-high frequencies.

This difference is particularly noticeable during high-volume performances. The OM7's sharp frequency response may make it stand out in a mix, but it might also require enhanced equalization to balance the sound properly. Conversely, the e945's wider frequency response offers more flexibility, allowing for a more natural and balanced sound.

Test the Microphones on Your Voice

Ultimately, the best way to determine which microphone is right for you is to test them out with your own voice and in your stage environment. Bring both microphones along to your gigs, and try them out during sound checks. Pay attention to how they capture your voice, how they handle various sound levels, and how they sit within the overall mix.

Consider the following factors when testing:

The specific sound you're trying to capture The distance from the microphone to your mouth The volume and energy of the performance The acoustics of the venue

By paying attention to these elements, you can get a clear understanding of how each microphone behaves and how it integrates with your voice and style.

Conclusion

Selecting the right live microphone is a crucial decision that can significantly impact the sound quality of your performances. The Audix OM7 and Sennheiser e945 are both excellent options, each with its unique strengths. Consider your stage environment, vocal technique, and the specific needs of your performances. By understanding the nuances of each microphone's design and specifications, you can make an informed choice that will enhance your sound and elevate your live performances.

Remember, the perfect microphone is one that suits your voice and venue, and the only way to find the right one is to test them out. Experiment, and most importantly, listen to your sound as it's captured. With the right microphone, your performances will sound clear, powerful, and memorable.