The IGS Audio Tubecore is a 3U Variable-mu stereo compressor offering a High-Pass filter, a wet/dry mixer and the possibility to replace the tubes from the back of the unit, allowing for an even wider sonic palette.
The TUBECORE 3U is a fully symmetric transformer balanced stereo mastering compressor. The structure is based on the typical vari-mu solution. Apart from the classic INPUT, THRESHOLD and OUTPUT controls it introduces switchable high pass filter in the sidechain, parallel compression (MIX knob), independent ATTACK and RELEASE switches and user replaceable tubes accessible from the back of the unit.
The design of the Tubecore 3U is based on the possibility to replace the tubes. As a user, you can choose between a few types: 6N1P-EW (6N3P-EW) – standard set of tubes, “standard” IGS compression, 6BC8/6BZ8 – tight, transparent, punchy compression, 6386 – legendary compression, by famous twin triode, 5670 – deep and dark tube compression.
Every single TUBECORE 3U is hand made with high quality, matched components (1% metal film resistors, Wima caps). It is equipped with 6N1P-EW (6N3P-EW) NOS tubes and individually calibrated to give you the unique and unspoiled experience of one of the best vari-mu compressors in history. It is equipped with Carnhill and Sowter audio transformers.
|Vari Mu Compressor||Yes|
|All stepped manipulators||24 pole Elma switches|
|Sidechain HPF||120Hz, 60Hz, Off|
|WET/DRY Mixer||0 - 100%, 4 dB step|
|MID/SIDE Processing||OpAmp M-S encode/decode|
|INPUT & OUTPUT|
|Input Impedance (balanced)||XLR, 600 Ohm, Carnhill balanced|
|Output Impedance (balanced)||XLR, 600 Ohm, Sowter balanced|
|Max input level||+22 dBu|
|Max output level||+22 dBu|
|Dynamic Range||>107 dBA (@ 1kHz, +24 dBu)|
|Max Gain Reduction||20 dB|
|Attack:||0.1 - 30 ms|
|Release:||0.1 - 4s|
|Frequency response||20Hz to 20kHz; +/- 0.2dB|
|DISTORTION (@ 20 HZ - 20 KHZ)|
|Signal to Noise Ratio||87 dBA|
|Voltage||115/230V AC, 50-60Hz|
|Power consumption||44 Wats|
|Tube set||Standard: 6N1P-EW or 6N3P-EW, Optional: 6BC8, 5670, 6386|
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