Specifications - iSP Technologies Decimator Prorack Owner's Manual

SETTING THE FILTER TRACKING CONTROL
The FILTER TRACKING control adjusts the relationship
between the sensitivity of the Dynamic Filter and the Expander.
Once the THRESHOLD control is set for proper operation of the
downward expander increase the FILTER TRACKING control
until the desired dynamic filter operation is achieved. Setting
this control to high will cause the filter to not fully open when
high frequency signals are present. Setting this control to low
will not provide any high frequency noise reduction. The Filter
Tracking adjusts the tracking for both channels.
Once the filter is set correctly, the dynamic filter will provide high frequency noise
reduction at all input signal levels. For example, if a high-level input signal is present at
the input that contains low and mid frequency information but little or no high
frequency information the filter bandwidth will close to a point just above the highest
input frequency. The instant the input signal contains a high frequency audio signal the
bandwidth of the filter will open to allow the highs to pass unaltered. Since the ear
cannot detect a low-level signal in the presence of a higher-level signal in the same
frequency band, the input signal will mask the audibility of the high frequency noise.
As the high frequency information in the input signal decays, the filter will close to
reduce the audible level of the background noise. When set properly, the Decimator
should virtually eliminate all background noise and should operate with total
transparency.
Input Impedance
Maximum Input Level
Input / Output Jack
Frequency Response
Total Harmonic Distortion
Dynamic Range
Effective Noise Reduction
Dynamic Filter Attenuation Slope
Noise Floor
Power Requirements
Dimensions
NOTE: ODBU = .775V RMS

SPECIFICATIONS

470K ohms
+15dbu typical
¼ Balanced / ¼ Unbalanced
+.1,-.5db, 20Hz to 30KHz
Less than .02% Typical
115db, Peak to A weighted floor
Greater than 120db
6db per Octave
-110 A weighted typical –10 ref
9V AC 1000ma
19" x 6" x 1¾"
with both channels