回顾:森海塞尔AVX无线系统

The Sennheiser AVX wireless sound system records crisp, 清晰的, 无噪声的声, 是否易于配置和操作, and runs for hours on a single battery charge. While the handheld system that I tested wasn’t cheap at $899.95 (B&H), it’s as close to perfect as any microphone/receiver set that I’ve ever tested. 

描述

My test system has two main components (下面的图1):手持麦克风和接收器, the latter of which is the same for the lavaliere and handheld systems. The receiver plugs directly into the XLR port on your camcorder and can draw Phantom power, enabling operation for as long as your camcorder has power. In this mode, the unit shuts off with the camcorder, preserving battery life. 接收器也有电池, enabling operation with DSLRs and other devices without Phantom power.

图1. Sennheiser AVX手持设备. 单击图像以查看其全尺寸.

Sennheiser includes the accessories shown in 图2(下面), an XLR-to-mini-jack cable and a hot shoe mount for connecting the receiver to a DSL or other camcorder without XLR input, and a belt clip for attaching the receiver to your belt. 用另一个便宜的适配器, you can input audio from the mini jack into your iPhone or Android device, 但没有适配器就无法工作.

图2. These accessories enable input into a DSLR or inexpensive camcorder. 单击图像以查看其全尺寸.

The receiver has three on-board controls: one for pairing with the microphone, one for turning the unit on and off and for checking the battery charge, 第三个是调整产出, 有四个音量级别. The battery indicator has a max of four green stripes, each representing an hour of operation. When the last green light turns to a blinking red light, you have about 15 minutes left. 您可以一边充电一边运行设备, 如果你手边有果汁包, 或者墙上的插头, 你可以延长拍摄时间.

I tested the cardioid handheld microphone, 哪一种感觉很结实, 包括Sennheiser 835太空舱. Sennheiser also sells an AVX model that uses the omnidirectional MD 42 capsule, so be careful when buying to make sure you get the desired pickup pattern. Like the Lithium battery in the receiver, the microphone charges via a micro USB connector and Sennheiser includes both the cable and a wall plug. The microphone should work for up to ten hours on a single charge, and contains a small LCD that shows remaining battery life.

设置和使用

起床和跑步很简单. If you're connecting the receiver to a camera with XLR and Phantom power, 插上电源，打开相机. 然后打开麦克风. Behind the scenes, the AVX uses the license-free 1.9 GHz band and pairs automatically, which takes about 4−5 seconds. 根据营销材料, the AVX selects the best operating frequency for the signal, and can switch during transmission to maintain quality. 其他使用1的系统.9 GHz include cordless phones--a potential conflict, but one that I didn't experience.

Once the microphone and receiver successfully connect, 两边的配对灯都变成绿色, 你应该准备好出发了. 如果单位不能自动配对, there's a button you can press on both to manually pair the units, which may be necessary if you turn one or the other off. If you're working with multiple AVX units, pressing the pair button on either transmitter or receiver will cause the pair button on its mate to start blinking. To manually pair a microphone and receiver, you press the pair buttons on both units simultaneously. 为了避免冲突, Sennheiser recommends using up to 12 AVX channels simultaneously in Europe, 美国有8家.S.