Matchbox Direct Box

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DB25b Direct Box อุปกรณ์ Direct Interfaces ทำหน้าลดสัญญาณ High Impedance ลงเป็น Low Impedance และแปลงสัญญาณ Unbalanced เป็นสัญญาณ Balanced ปุ่มปรับ Attenuation ตั้งแต่ -20dB ถึง -Infinity dB   The DB25b is a transformer balanced, passive direct box. It features a Ground Lift switch for hum elimination, and an Attenuator control for padding the input signal from -20dB to -infinity dB. Padding the input signal provides a way to connect the DB25b to a line level signal, even a speaker level signal and connecting it to a balanced line or Mic input on a mixer. The two 1/4 inch; inputs are paralleled pass-throughs to also send the input signal to a tuner, pre amp, etc..   DB25b Mounting Tabs make it easy to attach to any surface Attenuator knob to dial in the exact level you want Controls only on the front and back for "brick wall" multiples Basic black color for matching any decor Specifications Frequency response 20 - 20K Hz + -3 dB Output imp. 600 ohms Input Impedance 50K ohms Max output level 10 dBm Size 4.5L X 2W X 1.625H Weight 8oz, 0.23kg