This is a 2-in-2-out junction box featuring a clone of the Klon Centaur's buffer section. This model has a buffer on/off switch. When the switch is off, the signal bypasses the buffer circuit for true bypass operation. This handmade product is a clone of a highly-regarded buffer known for improving sound quality and noise resistance, simply by connecting it. The two lines each have independent grounds to suppress noise caused by ground loops. The buffer's ground is connected to the case ground. The through jacks use switch-type jacks, preventing noise when the plugs are removed. The circuit board is meticulously hand-wired point-to-point. It is powered by a standard 9V center-negative AC adapter. Op-amp: Texas Instruments TL072CP Wiring: Belden 8503 and others Solder: Kester 44 and others Case: Takachi TD5-8-3N (approx. W80 x D55 x H30mm) LED: 3mm Blue The case uses a high-quality aluminum die-cast case from a domestic manufacturer. In the first photo, the right side is the buffer line (in/out designated), and the left side is the through line (no in/out designation). ※Images 6 and later are reference images of past products. The item shown in images 1-5 will be sent. After your order, it will be shipped within 1-2 days via anonymous delivery with free shipping. In the event of an initial defect, we will provide free support. This product takes measures to minimize noise, such as separating the grounds of each line and grounding the unused output of the op-amp. Some commercially available products neglect these details, so we recommend checking them when selecting a junction box or buffer. A simple model without the on/off function is also available. junction box klon centaur buffer