Power Handling Capacity: 50 Watts integrated programme material
Frequency Range: 30 Hz to 20,000 Hz, +/- 4dB
Conversion Efficiency: In excess of 20 per cent over entire range
Rear Horn Development: Effective 20 Hz to 250 Hz
Front Horn Development: Effective 250 Hz to 1000 Hz
Polar Distribution, 60 degree Inculded Angle: -4dB at 10,000 Hz
Finish: Hand Rubbed Mahogany, Walnut or Teak
Autograph Design Plans
These plans show the extreme complexity of the horn development system within the Autograph enclosure. There are many, many parts to be made, and it would be a challenging task to build a cabinet. The plans here are presented for interest. I cannot say how practical it would be to build a cabinet from them, and I cannot attest to the accuracy of completeness of the plans.
The use of the standard Monitor Gold crossover in conjunction with the Autograph enclosure will give a subdued treble response. Likewise, the use of Monitor Red or Monitor Silver in this enclosure will require a special crossover to be built for the HF-unit. The Monitor-HPD crossover could be modified from its original design, as it already has the tapped auto-transformer used in the Monitor Gold crossover.
Another approach would be to bi-amplify the system, thus making proper calibration between HF and LF easy to obtain. Note that the equalisation circuit from within the original crossover for the HF unit will still be required (ie: all those parts after the auto-transformer).
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