Scroll down to the bottom of the product page. There is usually a "Downloads" or "Resource" tab.
Set your High-Pass Filters (HPF) and Low-Pass Filters (LPF) using Butterworth, Bessel, or Linkwitz-Riley curves to protect your speakers. t.racks ds 2 4 software download
Every new t.racks DS 2/4 came packaged with a mini-CDR that contained the "Speaker Management Software". If you still have the original packaging or you bought the unit from the original owner, this is the simplest route. Look for a small CD. Since many computers no longer have optical drives, you might need an external USB CD/DVD drive to read the disc. Scroll down to the bottom of the product page