Instruction Manual

Being latter-day converts, we have included circuitry to take full advantage of all M-S

techniques - even shuffling - in both production and post-production.

AD149 is Audio Developments' tribute to, and celebration of the genius of Alan

Blumlein.

Well - we HAD every intention that AD149 would complete the 140 series.

We'd reckoned, however, without the persistence - nay, insistence - of our customers

for a mains-operated version of the AD146 with four auxiliaries ...

we've called it AD144.

Radical change and PICO have proved to be uneasy bedfellows: never a matinée

idol and denied its dulce et decorum death, AD145 has now been repackaged in the

140 series metalwork - thereby reducing its size and weight. Facilities remain

largely unchanged: internally, the microphone amplifier has been replaced with

the one designed for AD146 and externally, the mono return is now in stereo form.

Now designated AD245, shall we have PICO - like the poor - always with us?

With the advent of multi-track recording and its general acceptance as a useful tool in

drama and film location; our market research has indicated a need for a sound mixer

with facilities similar to AD245 but with multi-track features, this giving birth to the

AD255 and AD256 Mixers. The addition of direct outputs from each input and two

auxiliary busses make up the main extra features over those of AD 245. The analogue

meters have been replaced by two LCD displays to enable the signal levels of the two

main outputs, two auxiliaries and an input module to be monitored simultaneously.