The unit features XLR input connectors that will accept input levels from microphones and line levels up to +28 dBu. The common mode rejection is typically 100 dB surpassing even the finest transformers and provides very stable performance over a broad temperature range.
Also incorporated, in front of the active circuitry, is a passive RF filter with hand-selected resistors and capacitors matched to better than one part per thousand to roll off any outside interference, without the typical intermodulation distortion byproducts of active circuitry. Input Selector and Gain Controls The input selector is an 11-position switch providing maximum input flexibility. When the switch is in the center MUTE position, the digital output still delivers a digital black condition (all 0s) used for sync in many master- ing and video applications.Rotating the selector clockwise, the next five positions select microphone input gain in 10 dB increments. Used in conjunction with the LEFT and RIGHT input level controls, up to 54 dB of gain is available (40 dB from the input selector and an additional 14 dB if the LEFT or RIGHT controls are fully clock- wise). This combination allows the setting of the coarse gain with the input selector and fine calibration using the LEFT and RIGHT controls.
Note: The LEFT and RIGHT controls can be bypassed and the gain can be rout- ed to the multi-turn CAL pots if desired. See page 31 for details of this procedure.
Line Level Inputs +4 dBu and 10 dBV Two CAL positions are available by rotating the INPUT SELECTOR counter-clockwise from twelve oclock. These positions correspond to +4 (Pro) and 10 (Consumer) line level inputs. When either of these positions are select- ed, the multi-turn CAL trim pots are enabled. Note: The CAL pots can be bypassed and the gain can be rout- ed to LEFT and RIGHT controls if desired. See page 31 for details regarding this procedure.Phantom Power 48 volt phantom power is supplied to both microphone inputs when this selector is in the ON position and the input selector is in any MIC or the 12 oclock mute position. The phantom voltage ramps up and down slowly for quiet activation and uses highly accurate resistors for optimum performance. The item "Apogee AD1000 Mic Preamp A D Converter Compressor CD Mastering S/PIDF Video Sync" is in sale since Friday, July 13, 2018. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "digitalbitsno1" and is located in Sausalito, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Uruguay, Antigua and barbuda, Saint lucia, Turks and caicos islands, Barbados, Brunei darussalam, Bolivia, Guadeloupe, Iceland, Jordan, Cambodia, Sri lanka, Maldives.