ALTEC LANSING 1220AC
* Release date unknown
Price unknown (around 1975)
Commentary
A mixing console designed for PA.
By providing the same level of performance as a console for a recording studio, it has high reliability and is equipped with functions suitable for PA.
Equipped with a limiter to prevent distortion due to over-level.
The built-in reverb unit also provides an echo effect.
In addition to the stereo all-range output, a built-in electronic crossover network provides two separate low-frequency and high-frequency outputs that can be switched between 800 Hz and 500 Hz.
It can also function as a recording console due to its excellent electrical characteristics.
The case is made of leather, and the steel feet can be removed and stored in the case.
In addition, the console part can be detached from the case and used as a desktop.
Model Rating
| Method | Mixing Console |
| Input | 10 channels, 150 Ω |
| Gain | 86dB |
| Output | 21 dBm maximum * Full-range stereo output and 800 Hz and 500 Hz switchable high / low output separately |
| Frequency characteristic | 30 Hz to 20 kHz ± 1 dB |
| Distortion factor | THD 0.5% or less (30 Hz to 20 kHz) |
| Signal-to-noise ratio | 80 dB or more (at maximum output) |
| Tone control | ± 16 dB (100Hz/10kHz) |
| Limiter release | 0.5 sec, 1.5 sec |
| Other | Limiter Reverb unit Electronic crossover network (500 Hz, 800 Hz switchable) |
| Pwer | 120 VAC / 240 V, 50Hz/60Hz 24 VDC / 28 VDC (Battery) |
| Power consumption | AC:50W DC : 2A maximum |
| External dimensions | Width 965x Height 305x Depth 660 mm |
| Weight | 54.5kg |