Rane DA 26S DA 26S Manual - Page 5

Front Panel Description GAIN PRIORITY DETECT DUCKER TARGET LEVEL RATIO AGC MIN MAX OL ON +4 -80 0 dBu dB ACTIVE -12 +12 dBu 1:1 :1 GAIN SLOW FAST -12 -6 -3 0 3 6 12 CROSSOVER OUTPUTS FREQUENCY 1 2 3 4 5 6 80 110 -12 +12 -12 +12 -12 +12 -12 +12 -12 +12 -12 +12 150 200 FULL HIGH LOW FULL HIGH LOW FULL HIGH LOW FULL HIGH LOW FULL HIGH LOW FULL HIGH LOW DA 26S DISTRIBUTION PROCESSOR POWER 1 PRIORITY GAIN trim and OL indicator: adjusts the gain for the PRIORITY INPUT. Set this trim to prevent overloading the Input - if the Priority Gain OL illuminates, turn down the GAIN. 2 PRIORITY DETECT trim and ACTIVE indicator: sets the threshold in dBu for the PRIORITY INPUT to override the LINE INPUT. When the threshold has been reached, the ACTIVE indicator illuminates. Set the GAIN(1), then set the DETECT trim. The range of operation is +4 dBu to ON. The release time for the auto-detect circuit is fixed at about 6 seconds, after which the LINE INPUT signal returns to it's previous level. 3 PRIORITY DUCKER trim: sets the amount of attenuation applied to the LINE INPUT signal when the PRIORITY INPUT is activated by the DETECT threshold. DUCKER depth is continuously adjustable over a range of 0 dB to -80 dB. For equal mixing of PRIORITY and LINE, set the DUCKER to 0 dB. For PRIORITY replaces LINE operation, use -80 dB. A value of -12 dB (1 o'clock) is typical for PRIORITY (page) talks over LINE (music) operation. 4 AGC TARGET LEVEL trim: is best set so the average signal at the LINE INPUT reads 0 dB on the GAIN meter. This gives the best performance of the AGC (Automatic Gain Control). Active constant gain range of the AGC is ±12 dB (24 dB range). When the Input falls 26 dB below the AGC Target Level, gain returns to unity. See Setup and Operation, step 2. 5 AGC RATIO trim: determines the Ratio applied to the AGC with a soft-knee response. Increased clockwise rotation increases the amount of AGC. The full counter-clockwise position disables the AGC. The normal range of operation is between 2:1 and ∞:1 as marked by the gray band. 6 AGC SLOW/FAST release switch: determines the gain reduction time constant of the AGC circuit. SLOW = 230 ms (best for music), FAST = 11 ms (best for voice). The gain increase time constant is fixed at 1100 ms. 7 AGC GAIN meter: indicates the amount of AGC applied to the LINE INPUT. The 0 dB GAIN indicator is off if the Input is more than 26 dB below the Target Level. 8 CROSSOVER FREQUENCY switch and indicators: select the FREQUENCY for the 2-way Crossover when High-Pass and/or Low-Pass outputs are used (80, 110,150 or 200 Hz). High, Low or Full-Range is selectable for each of the six Outputs. 9 OUTPUT trims and Crossover select switches: The ±12 dB trims set the levels for each of the six Outputs. High, Low or FullRange is switch selectable for each of the six Outputs. Note: the Output trims do not affect Low-pass loudness compensation or Priority Input level. See Setup & Operation, step 5. 0 POWER indicator LED: This yellow illumination device lights up to let the operator know the thing is plugged in. Manual-2