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Aphex 320a Compellor Compressor Leveller Peak Limiter
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Equipamento Compressor/ Limitador / Gate
Marca Aphex Modelo 320A
Bom Estado de Conservação
Todas as Especificações Técnicas no Site do Fabricante
The Aphex Model 320A delivers intelligent compressor action, leveling and peak limiting simultaneously. This intelligent, versatile and highly affordable processor can be used to solve audio level problems and improve audio signals in the broadcast studio, recording studio, tape duplication house, film dubbing studio and in live sound applications. Patented control circuits include analog computers that continuously analyze the input signal and vary the control characteristics to provide for virtually undetectable operation, regardless of the dynamics of the program
Extremely easy to use, you only need to set the Drive level to generate the desired amount of processing, set the Process Balance control between Leveling and Compression and adjust the Output level for unity gain. The Model 320A is then ready to provide complete dynamic control - smooth, inaudible compression, increased system gain, desired program density and the freedom from constant "gain riding" - fully automatically! Its unique circuit design actually enhances transient qualities, thus making even heavy processing undetectable.
The Model 320A provides the option of Dual Mono or Stereo operation. In the mono mode, you have two completely independent channels of processing to accommodate independent monaural signal feeds. In the Stereo mode, you can choose between linking only the leveling control signals or you can link both the compression and leveling signals. An intuitive front panel metering system displays input level, output level or gain reduction levels. All potentiometers are detented for accurate resetting of controls. A Leveling Speed (fast/slow) switch is located on the front panel, as is the defeat switch for the peak limiter. Operating reference levels are selectable from -10dBV, +4dBu or +8dBu. An RJ-11 connector is located on the rear panel to facilitate remote relay bypass of the unit.The Model 320A is almost identical to its predecessor, with the primary improvement being the addition of a newly developed (patents pending) Frequency Discriminate Leveler (FDL) circuit. Lab tests and exhaustive research led to the discovery that, under conditions of program leveling, the human ear perceives the onset of low frequency (bass & percussion) transients differently from 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 a potential loss of bass and/or low end "punch", mid and high frequency processing can be negatively impacted. To the listener, the effect can be heard as a perceived loss of bass or even "pumping" at the mid and treble frequency ranges.
FDL eliminates this problem by allowing low frequency transients to trigger 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:The Compellor's simple audio path is composed of a servobalanced input stage, the world-renowned Aphex 1001 VCA, and a new electronically servo-balanced output stage which can be used balanced or single-ended. The nominal operating level of the Model 320A Compellor (O VU on the meter) is rear panel selectable between -10dBV, +4dBu and +8dBu to match virtually any system.
There are three main detector circuits for Leveling, Compression and Peak Limiting:
Leveling is performed in a manner related to the way the ear perceives loudness over long time intervals. The circuit effectively maintains output level within 1dB for a 20dB input level change. This action is slow enough to have a minimal impact on program transients or short term dynamics. The addition of FDL further improves the ability of the Leveler circuit to operate smoothly and undetected by introducing a measure of control over the different dynamic characteristics of low frequency vs. high frequency program material. By allowing the Leveler to discriminate between high and low frequency dynamics, the attack time applied to low frequency program is proportionately slower than at higher frequencies. The result is the virtual elimination of "bass pull back" or "pumping" at mid and high frequencies, a condition that is sometimes caused when bass or low pitched percussion dynamics impact the attack characteristics of mid and high frequency program.
When leveling and compression are used together, the Leveler maintains the gain platform so that compression is consistent over the varying levels of program material, providing smooth sounding dynamic compression.
The leveling action is interactive between the two channels when the Leveling Link button is depressed. In this mode, one control signal preserves overall balance and stereo imaging.
Compression is accomplished with a variable ratio, attack and release. The ratio changes depending on program content from 1.1:1 to 3:1. The attack and release times are derived from and vary with program material. The "soft knee" threshold helps to prevent the "choked" sound character often associated with deep compression. Additional program dependent characteristics are imparted by other sections of the Compellor's on-board computers, the Dynamic Verification Gate (DVG), and the Dynamic Recovery Computer (DRC).Peso Embalado 6 Kg
Cep Para Consulta de Frete 25213-010
Garantia: 3 meses de garantia
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| Aphex 320a Compellor Compressor Leveller Peak Limiter
Preço:
R$ 60000 unid. (Produto Usado)
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