The Prism Sound Dream AD-2 is a professional A/D converter offering a wealth of sophisticated features as well as high-performance, multi-rate A/D conversion for the most exacting applications in sound recording, mastering and broadcast.

The AD-2 is like two separate A/D converters, plus a digital processor, all in one: it can generate two entirely separate output signals simultaneously. These can have different sampling rates, different word-lengths - even use different noise-shapers. For example, you can output a 96kHz / 24-bit signal and a 44.1kHz / 16-bit noise-shaped signal at the same time.

Apart from its breathtaking performance, the analogue front-end of the AD-2 includes many new features: Analogue input sensitivity (and inter-channel balance) is software-programmable over the entire range with 0.05dB resolution. Just as with the AD-1, the inputs are transformerless, electronically balanced and galvanically isolated (fully floating), to ensure freedom from noise pick-up and crosstalk.

The four tried and tested Super-Noise-Shaping ('SNS') curves are extended to include optimal shaping for the higher sampling rates. The SNS process gives greatly-improved small-signal performance for limited word-lengths, such as CD, and is completely compatible with existing D/A converter products (including consumer and professional CD players).

The AD-2's front panel gives a clear indication of the main control settings at all times. Audio level is shown on 16-segment meters. A menu system allows control of operating parameters, and 16 stores are provided (including eight 'factory' modes) which can be recalled at the push of a button. A unique 'Setup Wizard' feature simplifies configuration of the AD-2 for new users.

The digital inputs and outputs of the AD-2 cover a wide range of formats. Digital outputs are available in all formats irrespective of the input format in use. When generating two different output signal paths, the AD-2's digital outputs can be freely assigned to either path.

Prism has been very busy since their first generation converters came out in 1994. Take a long look at the new AD-2 and DA-2 and you'll see why. They have compromised on nothing. These converters quite simply redefine the state-of-the-art.