Built to order, 600 ohm to 12K ohm balanced bridging H type attenuator using high quality resistors, for the best results connecting high output 600 ohm line to a 12K ohm source common to computer recording interfaces. The 25.5 db attenuation scales the power down for the interface, while providing the 600 ohm loading to drive equipment at their proper levels. Loading and source impedance optimization through this matter establishes operating points that the equipment preforms as best as it can.

In the end, the engineer can achieve proper impedance balancing, as well as signal scaling that optimizes their audio specific application.

Built with XLR i/o. This circuit is a 100% balanced circuit. Therefore, pin1 of the XLR is unused.