1. A single passive impedance converter can convert high impedance signals into low impedance signals 2. It is made of high-quality steel plate by numerical control stamping. DB-1 is made of high-quality steel plate by multiple numerical control stamping. It has a strong and durable structure, strong impact resistance, compact appearance, simple design and convenient carrying. 3. Working principle: The output of musical inst ents is generally high-impedance output. However, high-impedance input is too high for ordinary mixers and sound cards, and there are two consequences if it is directly plugged in: 1. Loss of a lot of sound details, 2. Ineffective. Therefore, the D box is responsible for restoring the high-impedance sound signal and mitting it to the mixer or sound card for use. 4. Work purpose: The main purpose of the DI box is to mit the signal of the inst ent to the mixer or sound system directly through the DI box to the mixer or sound system. The correct sound of the inst ent can be obtained without restoring the inst ent speaker; 5. the purpose of computer recording, the inst ent The signal is input into the computer sound card through the DI box to obtain the correct inst ent sound. If you use a computer effector such as Guitarrig, you can directly use the computer as a professional effector. Other applications: DI boxes are generally equipped with direct output, which is mainly used for stage performances. Musicians insert inst ents on the DI box. The DI box is divided into two outputs, one DI signal is output to the mixer, and the tuning is guaranteed. The teacher obtains the correct signal; the other direct output can give the inst ent speakers on the stage just like the inst ent is directly plugged into the speaker. The habits and adjustments of the musicians using the inst ent speaker do notneed to be modified, and the tuner does not need to set up a microphone in front of the speaker Wait for trouble. This is why many professional sites are equipped with a large number of D boxes Brand: Alctron Model: PS-1 Rated voltage: 9 (V) 3C rated voltage range: 36V and below size:120x76.5x45mm Material:metal colour:Black Package Contents: 1 x Impedance converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.