Here's some trident info. The Fleximix was originally developed as a live console for Queen. There's a Tape Op issue from the end of 2001 with an interview with Malcolm Toft.
Trident's range over the years:
A Range - First console made in 1970, split design.
B Range - Second split design console, 1973.
Fleximix - Live sound console, launched 1979.
TSM - First Quad console, split design,1979.
Series 80 - First introduced in 1980, this fully modular console, very ruggedly built for use in fully professional studios, is well known for its very high quality of sound. In 1982 Trident was awarded a contract to supply Swedish Local Radio with 24 Series 80 consoles over a one year period for use in mobile broadcast vehicles.
Series 80B & 80C - During 1983, Trident introduced new versions of the Series 80 range designated the Series 80B and, in 1987, Series 80C.
Trimix - Split design, rear panel patching, mobile, no stand. Launched 1981.
S70 - Hybrid Trimix, on board patchbay, studio version, on stand. Launched 1983.
TIL - First "Trident In Line" console. Launched 1984.
Series 65 - A low cost fully modular and extremely versatile multi-track recording console. Launched 1984.
Series 75 - A larger counterpart of the S65. It incorporates larger meters and an integral patchfield. Launched 1985.
Series 16/24 - A hybrid between the S65 and S75. Utilises the S75 modules in a S65 frame, providing the S75 but in a smaller physical size and without the patchbay. Particularly useful for home recording studios. Launched 1989.
Di-An - Owing to the frequent clashes of artists' schedules versus available studio time, recording engineers and record producers were for many years seeking ways to memorise the settings of all of the recording process in one session. The Di-An was the answer to this requirement, launched 1986. By providing digital control of analogue audio, Trident is able to provide the all important manipulation of audio via the digital domain i.e. storage, retrieval, reset etc., of all of the console's functions. All information can be stored and retrieved at a later date by means of 3.5 floppy disks.
Vector 432 - Launched on 22nd September l989 was the second 'In-Line' console to be designed by Trident. Already in use with Broadcast customers within the U.S.A, Japan and Europe, the Vector has also been sold to music and video post studios as well as custom versions fitted with LCRS panning for the film industry. This multi purpose console features 32 multitrack busses, 4 stereo busses and a choice of 4 modules including a stereo input with both stereo mic and line inputs.
Series 90 - This console was first shown on the 3rd June 1992 at the APRS Exhibition, Olympia. The Ninety is offered as standard with a choice of either Trident's dual VCA fader automation or our Moving fader/VCA fader automation. Both systems include 12 automated switches per channel and machine control. The Ninety is a 24 bus console available in either 40 or 56 channel frame sizes.
Ventura 85 - Launched at the San Francisco AES in November 1994, this console was developed to fill the niche below the Ninety series and is available in 32,40 and 48 input versions with an optional automation package.