The GOLD LINE DSP Series Analyzers have digital features that greatly increase the usefulness and cost effectiveness of audio measurements. These analyzers feature a SOUND WINDOW that is large enough to capture the dynamic response of a room (85dB) and are capable of detailed measurements with great accuracy. The system makes use of software-controlled filters allowing measurements over a wider dynamic range without interference from adjacent frequencies. The user is also able to change the character of the filters from standard ANSI CLASS III triple tuned filters to filters with sharper skirts (better than CLASS III). These sharper filters allow the user to measure over a larger dynamic range without interference from adjoining frequencies. The DSP analyzers come with a measurement microphone, a RS232 interface port and Windows interface software. Other models offered are the standard DSP30, DSP30B with Intelligibility Package and DSP30BP with Intelligibility and Privacy package. *Portable 30 channel digital 1/3 Octave Analyzer. *Uses the power of your computer *IBM compatible *Windows software included *Captures full 85dB window with scales from 1/4 to 5dB. *Filters exceed ANSI specs.