The16-Channel Expander Bucket for Mini Rack Mixer from Chandler expands the Mini Rack Mixer from 16 channels to 32 channels. It is a 19" (482.6mm), all steel rack box that, fully-loaded, weighs 50 lb. (22.7kg) mostly due to the 22 transformers that are contained in the unit. The Mini has eight single-slot, 2-channel line input modules, a single-slot talkback module, a single-slot control room monitor panel and a 4-slot master module. Even though the mixer is a rackmounted unit and ideal for portable DAW rigs, it can be positioned at a slight angle in a permanent desktop cabinet to work as a conventional mixer/console/desk.
 
- Control Room
Includes talkback, speaker switching, mute, mono, dim, external input (also used as an insert point), and separate control room and stereo bus outs
- External Input
Pressing this button disconnects the mix section and control room allowing for some interesting combinations. The most obvious is to listen to other sources, like two track machines or CD players, but was designed with other important options in mind
- Stereo Output
Volume for two sets of stereo outputs
- Stereo Insert
You can create a stereo insert point between the stereo outputs and control room sections of the mixer. Hit external, patch from the stereo output to the external in, and the control room then becomes your stereo out with an insert point
- Channel Volume
Each control is push/pull to mute the channel
- Summing
Feed a stereo mix from your DAW to the external in and listen from the control room out. The mixer is then completely independent from the control room and stereo bus allowing for dual mono or stereo summing
- Talkback Module
Volume control and momentary push button to engage
- Channel Pan
Toggle switch disconnects pan pot to allow for true centering, like on a vintage API or Neve console

The Features
- Expands to 32 Channels
- Speaker 1/2 & External Input
- 2 Stereo Outputs
- Full-Featured Control Room Section
- Stereo Insert
- 22 Custom-Wound Transformers
- Talkback Module
- Channel Pan
- Meter Module
- Provides 20 Discrete Amplifiers