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How to choose OBT column series
In the diversified user practice, it is very important to choose the sound column in order to reduce the cost and improve the performance of the speaker.
Although the OBT-122, OBT-124, OBT-126, and OBT-128 series sound columns are designed with aluminum alloy, they are mainly used indoors. The design is relatively slim, and the 4-inch speaker is not suitable for outdoor use. Adopt OBT-901, OBT-902, OBT-903, OBT-904 series;
If you are pursuing a relatively high frequency, it is recommended to use OBT-121, OBT-123, OBT-125, OBT-127 series;
If the outdoor space is relatively large and requires more than 100 watts of high-power sound column, it is recommended to use OBT-710, OBT-720, OBT-730, OBT-740, OBT-750, OBT-760, of which OBT-760 is at 100V output voltage. When the power can reach 180W;
If the transmission direction of the audio source is required to be 360 degrees, it is best to use the OBT-131, OBT-133, OBT-135, and OBT-137 series two-way broadcast type sound columns.
If you require a relatively large sound pressure indoors, you can use the above models, you can also use the all-wood OBT-162, OBT-166, OBT-168 series, cost-effective.
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