Rane RA-30 30-Band Real-Time Analyzer

The Rane RA 30 Realtime Analyzer provides 30 bands of realtime frequency/amplitude information in a 5-LED vertical band format. It serves not only as an excellent professional realtime analyzer but also as an SPL meter and a Stereo VU meter In RTA (Real Time Analyzer) operation, the RA 30 is used to visually judge the character of the Pink Noise signal (or any sound) received by the measurement microphone. A Pink Noise generator is built into the RA 30 with an on/off switch. The operator may now adjust a 1/3-octave equalizer for optimum response of a sound system based on the readings presented by the LED display. Broadband signals applied to either the Mic or Line Inputs of the RA 30 are divided into 1/3-octave increments by IEC 1260:1995 Class 2 filters. The outputs of these are applied to LEDs on the front panel to visually indicate the amplitude of each band, in user selectable 1, 3 or 6 dB scales. A Normalize button sets the 0 dB reference to the maximum band level. In SPL (Sound Pressure Level) meter mode, the display is calibrated to a 1 dB resolution. This requires using the included calibrated mic with the Gain control in the center detent position. A- or C-weighting filters are user selectable. This mode has a maximum SPL of 120 dBA and a minimum SPL of 51 dBA. The Cal Mic Input auto ranges for maximized operation. Stereo VU meter mode is enabled when Line input is selected. It has a 1.5 dB resolution, and can be calibrated to +4 dBu or -10 dBV signals. Two horizontal yellow rows indicate the VU level. The top row corresponds to the Left Input, and the bottom row corresponds to the Right Input. Levels above +3 dB on the VU scale switch to the red rows. The Rane MIC 2 condenser microphone is a professional quality back-electret condenser microphone with an omnidirectional pickup pattern. This microphone is supplied with each RA 30, and connects to the front panel Mic Input jack only. The tapered aluminum mic housing fits most microphone stand clips, and comes complete with a 25 foot (7.2 meter) cord to facilitate distant placing of the mic from the analyzer. These factory tested mics are flat to within 1 dB from 20 Hz to 16 kHz. An Aux Mic Input is provided on the rear panel, allowing the user to use a microphone of another type. The rear panel of the RA 30 includes a Pink Noise Output jack, Aux Mic Input (XLR), stereo Line Inputs (1/4" balanced, can operate in mono by inserting in the left side only), and a recessed Pink Noise Level adjustment.