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500 Series Compressors

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Transient Designer Module The Transient Designer TDx brings level-independent dynamics processing to the world of the 500 Series. On/Bypass With On/Bypass you switch the module on or off (bypass). Signal LED The Sig LED (Sig) indicates whether an audio signal is present at the input and exceeds a level of -20 dB. This LED indicator is used as an aid to quickly identify whether a signal is arriving at the TDx in a complex studio cabling system. Attack Attack can be used to boost or cut the transient phase of a signal by up to 15 dB. Positive attack increases the amplitude of the transient response. Negative attack attenuates the amplitude of the transient response. Sustain With Sustain you can lengthen or shorten the decay phase of a signal by up to 24 dB. Positive Sustain extends the decay. Negative Sustain shortens the decay. Mix The mix control allows for continuous crossfade aka parallel mix between processed (WET) and unprocessed (DRY) signals. Output With the output control the output gain can be attenuated in order to optimally drive subsequent devices. The Differential Envelope Technology Our Differential Envelope Technology (DET) allows dynamic signal characteristics to be processed by forming the difference between envelopes and thereby making them level-independent. The envelope trackers align the working processes with the natural signal characteristics. This ensures optimum results for every moment.  Specifications:  Input & Output: balanced Maximum input & output gain: 21 dBu Input impedance: 20 kΩ Output impedance: 150 Ω Common mode rejection: > 82 dB Frequency range (-3 dB): 10 Hz – 100 kHz THD & N (0 dBu, 10 Hz – 22 kHz): 0.03 % Noise (A-weighted): -92.3 dB Dynamic range: 113 dB Dimensions & Weight Unit weight: 0.65 kg Shipping weight (incl. packaging): 0.9 kg

236 €
36 Instalments 8,15€ / month
Upon Order

Dual-Band De-Esser Module Our well known De-Esser as a dual-band version built into a single module for the 500 Series. On/Bypass With On/Bypass you switch the module on or off (bypass). Signal LED The Sig LED (Sig) indicates whether an audio signal is present at the input and exceeds a level of -20 dB. This LED indicator serves as an aid to quickly recognize whether a signal is arriving at the DeS in a complex studio cabling system. Hi-S The Hi-S control adjusts the intensity of the S sound reduction in the upper frequency band. The center frequency for sibilance detection is 11.2 kHz with a bandwidth of 3 kHz. Lo-S The Lo-S control adjusts the intensity of the S sound reduction in the lower frequency band. Male/Female Voicing The Voice switch is used to adjust the low-band de-esser to the voice characteristics. The switch changes the center frequency for the sibilance identification: Female: 7.6 kHz, Male: 6.4 kHz. The processing bandwidth in the low band is 1.44 kHz. De-Esser Tech Talk De-Essing by Phase Cancellation SPL has developed a circuit technology that combines efficient de-essing with maximum ease of use. De-essing already during recording spares a lot of time in comparison to the subsequent search for the S-sounds in post production. The DeS automatically adjusts itself to the relevant frequencies and hones in on them so that only the range of the S-sound is processed and neighbouring frequencies remain untouched. This range is phase-inverted and mixed back into the original signal, which acoustically deletes the S-sound. The DeS therefore works unobstrusively and sound-neutral. Auto-Threshold The DeS features our Auto-Threshold which automatically adjusts the threshold if the input level fluctuates due to varying distance to the microphone which leads to fluctuating input levels. With Auto-Threshold engaged, the de-essing intensity remains constant at the value you set – a great help not only for untrained speakers/singers in the studio and live. With conventional de-essers using compressor technology, the processing intensity decreases as the distance to the microphone increases to which compressors or limiters then react by letting the S sounds reappear. The disadvantage of weaker de-essing – bad enough in itself – therefore also leads to undesired effects in the subsequent processing. Auto-Threshold prevents these disadvantages from occurring in the first place. Specifications: Input & Output: balanced Maximum input & output gain: 21 dBu Input impedance: 20 kΩ Output impedance: 150 Ω Common mode rejection: -82 dB Frequency range (-3 dB): 10 Hz – 100 kHz THD & N (0 dBu, 10 Hz – 22 kHz): 0,03 % Noise (A-weighted): -92.3 dB Dynamic range: 113 dB Dimensions & Weight Unit weight: 0.65 kg Shipping weight (incl. packaging): 0.9 kg

236 €
36 Instalments 8,15€ / month
Upon Order

The Heritage Audio 2264E compressor limiter is a diode bridge based dynamics module, engineered to be used in the restoration process of vintage 80 Series consoles. It can also be installed in the Heritage Audio Frame 8 and Rack 2, where there is provision for linking up to 8 units in 2 different buses. It is fully Class A, including the same output stage found in the HA1073, which reacts in a much nicer way to compression than class A/B amplifiers. It is completely handmade and wired in the same fashion as the rest of the Heritage Audio 80 Series modules. Specifications: Line input impedance: 10KOhms bridging, transformer balanced and floating. Output impedance: Less than 75 Ohms, transformer balanced and floating, 600 Ohms terminated. Maximum output: Greater than +26dBu, 600 Ohms terminated. THD: Less than 0.025% at 1Khz, Less than 0.05% at 100Hz, at no gain reduction. Frequency response : 20Hz (+0.3dB) to 20Khz (-0.2dB). Maximum Gain: 20dB. Maximum Power consumption: Less than 120 mA @+24VDC.

2.044 €
36 Instalments 70,57€ / month
Upon Order

Discrete Compressor, Re-Issue. Originally released in the 70's, the API 525 is a "feedback" type compressor, such as the 1176 and 660, etc. An input (threshold) control and output (make-up gain) control are provided. An additional "Ceiling" fine tune function modifies threshold and make-up gain for precise changes in compression without changes in output.  A compression/limit switch sets ratio at either 2:1 or 20:1. Attack time is as fast as 15u/s. Four auto release modes are offered via two switches, 0.1s, 0.5s, 1.5s, & 2.0s. A De-Ess function inserts an inverse vocal energy curve filter in the detector for effective sibilance/p-pop reduction. The 525 is an identical re-issue of one of the most popular API products ever. The API 525 is perhaps the most successful solid state feedback compressor in history. It delivers dynamics control behavior unlike VCA "feed forward" compressors so common today. A remarkable multi-function "ceiling" control can increase gain reduction (lower threshold) while simultaneously raising output level to match, so the user can alter dynamics "on the fly" without level changes. This re-issue design has been taken from the original blue prints and spec control drawings from the API archives.        FEATURESReissue of API's original 525 from the early 70'sPeak detecting "feedback" compressor/limiterVariable Threshold and Output levelsUnique "Ceiling" control combines key functionsVU meter for monitoring gain reduction4 Switchable release modesDe-Ess functionTraditional API fully discrete circuit designHardwire bypass

1.498 €
12 Interest Free Instalments 124,83€ / month
Upon Order