We've had many people ask how the CO2 differs from our Digital Format Translator (DFT). In almost all cases, the CO2 will do the job at lower cost. In rare cases, the DFT is required.

The DFT has a single data path, while the CO2 can provide both single and bi-directional data paths. Both the DFT and CO2 can select between their two inputs (optical and coaxial); both always have their two outputs active simultaneously.

The DFT is more expensive (contact us for pricing). Its higher price reflects its higher quality components and more professional specifications.

Both of the DFT's coaxial input and output jacks are transformer isolated, completely eliminating the potential problem of grounding problems. The CO2's output is transformer isolated; its input is not.

The DFT selects between the optical and coaxial inputs using a logic element controlled by a high quality toggle switch. The CO2 switches between the two inputs using a slide switch -- no logic element is used. The DFT is more reliable over the long term.

The DFT uses a higher quality low-dropout voltage regulator to power its circuitry. It operates over a wider range of input voltages than the CO2 and can operate on the same battery voltage as many common audio recorders. The CO2 uses a low cost voltage regulator and requires a higher voltage.

Both the DFT and CO2 can drive and be driven by the signals on Sony's portable DAT recorder's 7-pin jack's.

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