SPL Iron mastering kompresor

Cena 599.880,00 din. PPC: 635.880,00 din. (-6%) Raspoloživo za 10-20 dana
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IRON mastering kompresor nije samo kopija klasičnog kompresora, već je sam po sebi izvorni koncept. Cilj kompanije SPL je bio osmisliti kompresor koji bi pružao ugodnu, melodičnu, i transparentnu kompresiju, inspirisanu starim kompresorima radijske ere uz želju da takva sprava bude dovoljno fleksibilna da se savršeno prilagodi potrebama modernog mastering studija. Na taj način IRON kombinuje zvučne vrline legendarnih vintage kompresora s prednostima radnog napona "High dynamic" od 120 V u jednoj jedinici. I ne samo to, takođe postavlja nove standarde u tehnologiji cevnih kompresora, s inovativnom primenom paralelnog dual-tube sklopa.

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OPIS PROIZVODA

The basic operating principles of a compressor/limiter can be easily explained. The level of an audio signal is reduced according to the specified attack time and ratio whenever it exceeds a given threshold. This reduction ceases when the release time elapses, while the compressed signal is amplified with the make-up gain. 

Compressors basically differ from each other in the technology used. This technology - tubes, opto, FET, or VCA - is what gives a compressor its particular character. Some units sound soft and silky, some sound pounding, while some others make sound fatter, and there are those that make sound clearer, harder or more percussive. The trick resides in how the unit is technically designed, in the signature of the maker. Different compressors with the exact same settings might work and sound completely different. They provide different sounds for different applications and music styles. 

Nowadays, the compressor has become a key element when it comes to provide dynamicsand punch to any production. The number of compressors available is huge and it‘seasy to succumb to the promises made by software emulations and analog recreations ofvintage gear as the perfect solution. Unfortunately, many of these emulations and recreationsdiffer quite a bit form their original counterparts. You must simply accept that the components used today, like the transformers, tubes and all other passive elements, are different to the ones originally used and that they can‘t be digitally emulated. No software (DSP-emulated compressors) or hardware replica will ever be able to sound like the original. An authentic sound can only be achieved with the original unit.

The IRON mastering compressor was conceived as a variable-bias limiter/compressor right from the start. However, the implementation of new technologies results in many improvements. Its basic operating principle as a variable-bias tube compressor was loosely inspired by the sonic and technical operation of Fairchild, Collins and Gates compressors, which used remote cut-off of tube biasing to achieve a well-balanced, well-compensated and musical compression. 

However, the IRON compressor features a second sharp cut-off tube, a medium-variable bias triode, in its circuit design. This tube is connected in parallel to the remote cut-off tube and it has a considerably steeper characteristic curve. The tube used to process the signal depends on the amplitude of the latter. This results in a more well-balanced sound and more controllable settings of the parameters. The pair of parallel connected tubes has been specially matched for the IRON. In order to guarantee that tube selection and pairing is perfect, we use the Weigl Roe Test for PC. The optimal selection of the tubes guarantees that all IRONs have the same sonic characteristics.

The Tube Bias has three different settings. Together with the Input Gain of up to +/- 12dB and the Threshold control, it allows the compression behavior of the tubes to be perfectly adapted to any material. The Attack and Release parameters have six different settings ranging from Slow to Fast. The times are not constant, they vary according to the Rectifier circuit selected: There are six different Rectifier settings available with different diodes (germanium, silicon, LED, mixed).

Moreover, we use Lundahl custom-made balanced high-level dual-coil mu-metal iron transformers in the signal flow of the variable-bias tubes, which add to the overall sound.

The second new technology implemented is the independent feed-forward resistive opto-isolator in the control path of the variable-bias tube circuit. Its function is to limit signal peaks and, thus, get a smaller THD (Total Harmonic Distortion) within the variable-bias tube section. The result is a silkier, more homogeneous sound in the higher frequencies of the music signal. This circuit has its own rectifier in the signal path. The optical control element does not work in the sense of an audio limiter, like in a conventional opto-compressor. It is built-in in the control path of the parallel connected variable-bias tube, not in the audio path itself. Time control parameters, like attack and release time, are adaptedand fixed to the variable-bias tube circuit. 

The IRON compressor works as a feedback compressor when set to the variable-bias tube circuit and as a feed-forward compressor when set to the opto-control circuit.

Thirdly, the complex rectifier circuit is also worth mentioning, since it is the basis for tube control. You can use the six-position switch to choose either of the six different control characteristic curves of the diodes within the rectifier. Given the specific characteristic curve of its elements, the combination of germanium, silicon and LED diodes produces different behaviors and characteristics for the Attack and Release times.

 

SPECIFIKACIJE:

Frekvencijski raspon (40 kHz = -3 dB): 10 Hz - 40 kHz

CMRR (at 0 dBu):1 kHz: › 80 dB / 10 kHz: › 65 dB

THD & N (0 dBu): › 82 dB

Noise (A-weighted): -98 dBu

Ukupna harmonička izobličenja

-10 dBu:

  • 0,3% at 100 Hz
  • 0,06% at 1 kHz
  • 0,02% at 15 kHz

0 dBu: 0,01% at 1kHz

+10 dBu: 0,002% at 1kHz

Ulazi

  • Input Impedance: 20 kOhm
  • Max. Input Level: +32,5 dBu

Izlazi

  • Max. Output Level: +32,5 dBu
  • Output Impedance: ‹ 50 Ohm

Potrošnja energije

  • 0,24 Amp, 230V/50Hz, 44 Watt, 55 VA
  • 0,46 Amp, 115V/60Hz, 42 Watt, 52 VA

Osigurači

  • 230 V/50 Hz: 1 Amp
  • 115 V/60 Hz: 2 Amp

Dimenzije i težina

  • W x H x D: 482 x 177 x 311,5mm; 19" x 7" x 12.25"
  • Standard EIA 19" Housing/4U
  • Weight: 11kg / 24.25lb
  •  

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