• Account
  • View Shopping Cart

Menu Search View Shopping Cart Call Us

IGS Audio Tubecore 3U Compressor  From IGS

The IGS Audio Tubecore 3U is a variable-mu mastering compressor which allows the user to easily switch out the tubes via rear panel for even more versatility in coloration.   

IGS Audio


"Experience the Difference"

Sound Pure's 3-Year Warranty

Our Free 3-Year Warranty!
In addition to the standard included manufacturer warranty, virtually all new products carry our exclusive, industry-leading, absolutely free, Sound Pure 3-Year Warranty, which includes PARTS & LABOR. This high-value perk is our way of providing the ultimate in added value to enhance the unique personal touch our small, dedicated team contributes to each purchase.
Learn more »

Lifetime Support

Free Lifetime Technical Support!
Our small team of dedicated experts is here to help the original purchaser for the lifetime of the product. Why? Because we care about building real relationships with our customers for life and stand behind every product we sell.

Free Shipping

This Product Ships Free!
Products ship from our well-located, climate- and humidity-controlled warehouse absolutely free (inside the continental USA). Low-cost international shipping options exist for most products.
Contact us for details »
Contact us for up-to-date delivery estimate.
Payments as low as $72/mo.

Manufacturer's Description from IGS

The Tubecore was designed as a studio mastering compressor. It is built using the 3U enclosure, which gives necessary front panel clarity and makes it easier to replace tubes located at the back.

This design is based on the possibility to replace tubes. The user decides how the device should sound. The sound can be changed by changing the tubes in the back of the device. You can achieve the following effects:

  • 6N1P-EW – standard set of tubes, “standard” compression,
  • 6BC8/6BZ8 – tight, transparent, punchy compression,
  • 6386 – legendary compression, by famous twin triode,
  • 5670 – deep and dark tube compression.

After replacing the tubes, all that needs to be done is calibrating "Zero" on the VU Meter. You can do this using a small screwdriver on the rear panel of the device.

Basic new features of the Tubecore are:

  • Sidechain HPF,
  • MID/SIDE Processing,
  • WET/DRY Mixer,
  • All stepped manipulators,
  • Engineer’s custom tube set.
IGS Audio

About Manufacturer

IGS Audio is now one the most desired studio equipment brands in Poland and it is continuously expanding internationally. The original IGS Audio products qualify as pretendants to no.1. Clones of other brands produced by Igs Audio are accurate and excellent. 

IGS Audio is all about happiness in success. IGS Audio offers 3 years warranty for all products.

IGS Studio has been operational since 1997. The IGS Audio brand was created in 2003.


Front panel (from left to right):

  • VU meter – dB reduction level,
  • BYPASS/STEREO/MID/SIDE/BYPASS – compressor mode switch, with two Bypass positions,
  • HPF OFF/60/120 – high pass filter settings for sidechain,
  • GAIN – signal input level,
  • ATTACK – 0.1ms to 30ms,
  • RELEASE – 0,1s to 4s,
  • THRESHOLD – 0 do -12dB,
  • OUTPUT – output signal level,
  • MIX Wet/Dry – compressed to clean signal ratio,
  • Voltage indicator,
  • Power switch.
  • Tubecore 3U compressor uses ELMA stepped switches only.

Rear panel (from left to right):

  • External power supply connector,
  • OUTPUT – compressor output, XLR sockets, fully balanced,
  • 6N1P-EW – output tubes,
  • ZERO METER – VU meter calibration,
  • 6386/5670 – input tube sockets, user selects,
  • 6N1P/6BC8 – input tube sockets, user selects,
  • INPUT – XLR balanced input.

Technical data: 

  • Vari-Mu compressor,
  • Balanced circuit from input to output,
  • XLR, transformer balanced inputs/outputs,
  • Nominal Level +4 dBu,
  • All stepped controls,
  • True Bypass switch,
  • Sidechain HPF,
  • Mid/Side Processing,
  • Wet/Dry Mixer,
  • Attack: 10 - 300 ms,
  • Release: 0.1s - 4s,
  • Maximum gain: 40 dB,
  • Frequency response 20 Hz - 20 kHz (+0.1/-0.2 dB),
  • Maximum Input Level >24dBu,
  • Maximum Output >24 dBu,
  • THD 0.12 % (@ 20 Hz - 20 kHz),
  • THD+N 0.15 % (@ 20 Hz - 20 kHz),
  • IMD (SMPTE) 0.32% (@ 20 Hz - 20 kHz),
  • Signal to Noise Ratio: 87 dBA (@ 20 Hz - 20 kHz),
  • Dynamic Range: >107 dBA (@ 1kHz, +24 dBu),
  • Crosstalk: 82 dB (@ 20 Hz - 20 kHz),
  • Input Impedance 600 Ohm,
  • Output Impedance 600 Ohm,
  • Tube Complement: 6N1P-EW,6BC8/6BZ8,6386,5670,
  • Input transformer: Carnhill UK,
  • Output transformer: Sowter UK,
  • Power Consumption: 44 watts,
  • 110/230V AC switch, 50~60Hz,

Related Videos

Introduction to IGS Audio - Quick n’ Dirty

IGS Audio is now one the most desired studio equipment brands in Poland and it is continuously expanding internationally. With gear ranging from preamps to equalizers, IGS has everything a pro or amateur engineer could ever need. All IGS products are available for SoundPure’s Try-Before-You-Buy program, so if you want to hear how this great gear sounds in your studio with your gear, shoot us an email at ProAudio@SoundPure.com, or call us anytime at 919.682.5552. Thanks for watching!





Owner's Manual

Recommended Accessories