Ashly Protea DSP360 Betriebshandbuch - Seite 14

Blättern Sie online oder laden Sie pdf Betriebshandbuch für Computer Hardware Ashly Protea DSP360 herunter. Ashly Protea DSP360 16 Seiten. Loudspeaker system processors

Seite drucken

Operating Manual - PROTEA™ DSP480 and DSP360 System Processors

7 . TROUBLESHOOTING

7 .1 - Audio Troubleshooting Tips

No power - Is the detachable AC cord fully plugged in? Is the rear panel power switch on?

Controls don't work - check the Security Level. If set to Full Lockout, then Protea unit is "view only". Change security

settings in Util menu or software.

No sound - Check to see if the input or output is muted. Is the input or output Gain turned down? Check the selected

audio source(s) for each output, making sure there is signal applied to the designated input(s). If the crossover is used, make

sure the high pass filter (HPF) is set to a lower frequency than the low pass filter (LPF).

Clip light stays on - Is the input signal level too high? Check to see that the nominal input level is 0dBu, allowing

20dB of input headroom. Are input or output gain settings too high? Check to see if an EQ filter has too much boost.

Distorted sound but no Clip LED- Check individual EQ filters to see if there is excessive boost.

Muffled sound - If expecting full range audio on an output, make sure the crossover settings are not inadvertently set

so as to limit the pass band.

Excessive Noise - An input signal level or an input gain setting that is too low could require the loss to be made up for

at the output gain stage, producing more noise than a properly set up gain structure. Do not use the DSP processor section for

dramatic increases in level, but rather optimize the signal source for a nominal 0dBu output.

Forgot the password - See section 4 .7e

8 . SPECIFICATIONS

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Active Balanced, 18kΩ, RF Filtered

Max . Input Level . . . . . . . . . . . . . . . . . . . +20dBu

Input Gain Range . . . . . . . . . . . . . . . . . . . -40dB to +12dB

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . Active Balanced, 112Ω, RF Filtered

Max . Output Level . . . . . . . . . . . . . . . . . . +20dBu

Output Gain Range . . . . . . . . . . . . . . . . . -40dB to +12dB

Frequency Response . . . . . . . . . . . . . . . . . 20Hz to 20kHz, ±0.25dB

THD + N . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.002% @ +4dBu, 1kHz

Dynamic Range . . . . . . . . . . . . . . . . . . . . . > 112dB, 20Hz - 20kHz unweighted

Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . < -90dB

Audio Sampling Rate . . . . . . . . . . . . . . . . 48kHz

Propagation Delay . . . . . . . . . . . . . . . . . . 1.46mS

EQ Filter Types . . . . . . . . . . . . . . . . . . . . . 1st or 2nd Order High or Low Shelf, Parametric

Shelving Filter Boost/Cut Range . . . . . . . ±15dB

Shelving Filter Frequency Range . . . . . . Low Shelf 19.7Hz to 2kHz, High Shelf 3.8kHz to 21.9kHz

Parametric Filter Boost/Cut Range . . . . +15dB/-30dB

Parametric Filter Frequency Range . . . . 19.7Hz to 21.9kHz, 1/24 Octave Steps

Parametric Filter Bandwidth . . . . . . . . . Four Octaves to 1/64 Octave

Input and Output Delay . . . . . . . . . . . . . . 0-682 milliseconds