User manual PRESONUS ADL600

[. . . ] PreSonus reserves the right to change or improve the design of the product at any time without prior notice. This warranty does not cover claims for damage due to abuse, neglect, alteration or attempted repair by unauthorized personnel, and is limited to failures arising during normal use that are due to defects in material or workmanship in the product. Any implied warranties, including implied warranties of merchantability and fitness for a particular purpose, are limited in duration to the length of this limited warranty. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. [. . . ] To reduce unwanted low-frequency boom, or room rumble. The analog VU meter provides an accurate reading of the output level. Eight segment LED meters for detecting peaks and fast transients of the output level. · · · · · · · 5 2 CONTROLS & CONNECTIONS 2. 1 FRONT PANEL LAYOUT The front panel of the ADL 600 is laid out so that if you split the front panel down the middle the controls and metering for channel 1 are on the left hand side and the controls and metering for channel 2 are on the right hand side. The following is a description of the controls for each channel: INPUT: Selects the input source (Instrument, Line, or Microphone) The microphone input has four different input impedance values to select from (1500, 900, 300 and 150 ohms). As the ADL 600's impedance is lowered, different filtering effects can result delivering a tailored sound for a particular application. When using the Line input, the following microphone preamplifier features are bypassed: +48V, -20dB PAD and input impedance. HP FILT: Three position rotary switch to select the frequency for the HIGH PASS FILTER (40Hz, 80Hz and 120Hz). When the FILTER switch is engaged all frequencies below the selected HP FILT setting are attenuated (dropped) by 12dB. This filter can be handy in live and studio applications. For example, a high pass filter can help to reduce the "boominess" or "muddiness" of a vocal and improve the overall clarity. GAIN: Eight-position industrial grade rotary switch providing 35dB of gain in 5dB steps. TRIM: Variable potentiometer (+/-10dB) to offer fine trim adjustment to the final stage of the ADL 600. INSTRUMENT: ¼" TS connector. When an instrument is plugged into the instrument input, the microphone preamplifier is bypassed and the ADL 600 becomes an active instrument preamplifier. 6 CONTROLS & CONNECTIONS +48V: The 48 volts supplied by way of the XLR connector, provides power for condenser mics and any other devices requiring continuous phantom power through the XLR input. This power is supplied at a constant level to prevent any degradation of audio quality. XLR connector wiring for Phantom Power Pin 1= GND Pin 2= +48V Pin3= +48V POL INV: Reverses the polarity of the signal. Use the phase invert when recording with more than one open microphone to combat phase cancellation between microphones. -20dB PAD: Engaging the PAD switch provides 20dB of attenuation. This is a very useful feature for reducing the level coming into the ADL 600 and thus preventing the signal from clipping or distorting. This may occur due to high output level from a microphone or other device. Padding the input serves to provide increased "headroom" for the operator while lessening the likelihood of signal overload. HP FILTER: Engages the high pass filter set with the HP FILT control. VU METER -6dB: Decreases the VU meter by 6dB. This can help you meter loud input sources if your VU meter is "slamming" or is pegged. [. . . ] -12dB to 40dB Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5dB to 42dB Noise Floor (all inputs, minimum gain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -95dBu (A-weighted) Microphone Equivalent Input Noise (EIN) . . . . . . . . . . . . . . . . . . . . . -125dBu (A-weighted) Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Hz to 45KHz +/- 1dB Maximum Output Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +23dBu (@ 0. 5%THD+N) Output Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]