IGS Audio T4BX


Enter your email address to be notified when this item is in stock.

Adding to cart… The item has been added
More On The Way, Get In Line For Our Earliest Ship Time

Stock Item: Ships from our shelf quickly in almost all cases when ordered before our ship cutoff times.

Direct Ship: Non-stock item, but normally ships quickly from the manufacturer or alternate warehouse.

Built To Order: Item is custom built per the options chosen and quickly shipped out upon completion.

More On The Way: The manufacturer is experiencing delays, but we'll ship quickly upon arrival.

New Item: We have this on order, the manufacturer hasn't shipped but you'll be in line upon arrival.

Visit our Shipping Page for cutoff times for FREE (USA), UPS, USPS or FedEx.

Visit our Returns Page for info on non-returnable, special order non-stock items.

Tradition Improved

It is widely known that the unique LA-2A character is a result of the applied T4B photocell. In the original TELETRONIX design, an electroluminescent panel provided a light source for the photo resistors. This component was variable in parameters, and this affected the resulting compression and stereo image of the audio. At IGS Audio we developed a new photocell parallel to the T4BX. By precisely selecting, testing and matching subcomponents used in the assembly of this photocell, we have created a product line consisting of nearly identical devices in parameters and sound.

Our opto compressors (ONE LA500 and One Leveling Amplifier) are equipped with the T4Bx photocell. It is, of course, interchangeable with the original Teletronix T4B so you can experiment and perform your own tests.

IGS Audio T4BX Specifications

  • Attack:  10 ms
  • Release:  60 ms for 50% release
  • Frequency response:  20Hz - 20kHz
  • Used for:  IGS One Leveling Amplifier, IGS One LA500, Teletronix LA2A, LA3A

Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.