The ES-245 is a quad 6-output Audio DA with 24 independently adjustable (via the front-mounted Gain controls) outputs, while the ES-246 has four Gain controls (one per input channel). The unit is a transformerless design and each of the four channels accepts a balanced or unbalanced audio signal that provides six exact copies. If unbalanced outputs are desired, up to twelve separate and isolated feeds can be made per channel. An input termination switch (between 600. and 100K.) is also provided on the ES-246.