The Aphex Model 323A represents the most recent iteration of the popular Compellor / Aural Exciter, a single channel dynamics processor and program enhancer. The model 323 A permits absolute control over program dynamics, a benefit made possible by the patented Compellor processor. The Aural Exciter section enhances and restores program material, resulting in increased audio presence, intelligibility, and articulation. OPERATIONAL FEATURESA significant improvement in this version of the Compellor / Aural Exciter over its predecessor is the addition of a newly developed (patents pending) Frequency Discriminate Leveler (FDL) circuit. Exhaustive research by Aphex engineers led to the discovery that, under conditions of program leveling, the human ear perceives the onset of low frequency (bass and percussion) transients differently than transients at higher frequencies. This perception, as it turns out, is a direct function of the relative attack time of the leveler. Without FDL, there is a significantly greater chance that low frequency transients can create an audible bass pull back effect. In addition to potential loss of bass and/or low end punch, mid and high frequency processing can be negatively impacted. To the listener, the effect can at times be heard as a perceived loss of bass or even a pumping effect at the mid and treble frequency ranges.FDL eliminates this problem causing low frequency transients to generate a slower attack time on the initial transient. High frequency leveling is still controlled within the attack time determined by the onboard computer. From the listener's standpoint, the benefits are:No more bass pullback effect Fast leveling can be used in more applicationsMore bass punch for better music mixes Reduced audio distortion in the leveling modeCompellor Section FeaturesCompressor - Smooth and transparent compression action due to intelligent attack and release control, the result of on-board Dynamic Verification Gate� (DVG) and Dynamic Recovery Computer� (DRC) analog control computersLeveler - Delivers undetectable Automatic gain Control (AGC) for maximum stability of program levelsPeak Limiter - Protects system components from sudden and potentially damaging peaks. Defeatable from a front panel switchStraight Wire Sound Quality - Employs the proven Aphex VCA 1001 for absolute audiophile quality sonic performanceLogical Metering System - One button allows you to choose between Input, Output, or Gain Reduction levels; bi-color LED'sTransformerless Servo-Balanced Input/Output Circuitry - Permits compatible interface with other balanced and/or single-ended components with no comprimise in performance. RF filteredSlow / Fast Leveling Speed - front panel selectableSelectable Nominal Operating Level - your choice of -10, +4, or +8 dbm operating levels selectable via a back panel switchAural Exciter Section FeaturesContains the latest refinements in Aural Exciter technologyImproved performance and reduced distortionOverall System FeaturesInputs and outputs trimmed for the highest Common Mode Rejection ratio (CMRR) assuring ultra quiet balanced line performancePremium Quality Power Supply - precision engineered toroidal power transformer, shielded and RF filtered for silent operationRemote controllable hardwire relay bypassDesigned and manufactured in the USA |
