The Lawo DV975 Analog Summing Mixer is a 1U rack unit that packs an impressive array of features. With 32 inputs via DB25 balanced connectors and 4 outputs via TRS balanced connectors for main and monitor, this unit can handle a lot of audio sources.

One standout feature is the 5 STM (Stereo to Mono) switches which allow for easy mixing of stereo sources. These are located on channels 1/2, 11/12, 17/18, 19/20, and 25/26, making it simple to configure your setup as needed.

The DV975 summing also includes 4 subgroups with SND/RET on/off switches, providing flexibility for routing and processing channels. Channels 1-16 are assigned to Group A, channels 17-24 to Group B, channels 25-30 to Group C, and channels 31-32 to Group D.

Another great feature is the 21-step precision Lawosumming box  gain control. This allows for fine-tuning of levels and ensures accurate and consistent signal processing. The regular round style knob makes it easy to adjust the gain quickly and intuitively.

Overall, the Lawo DV975  is a well-designed and versatile unit that would be a great addition to any professional audio setup. Its compact size and range of features make it ideal for use in a variety of settings, from small studios to larger broadcast environments. If you’re looking for a high-quality 1U rack unit for your audio mixing needs, the Lawo DV975 is definitely worth considering.