Thank you for choosing a Phonema speaker passionately designed by and for hams.
To fully enjoy the benefits of Miranda, please read these instructions thoroughly
before using it with transceiver or receiver.
At Phonema we have followed the most demanding acoustic criteria to provide a
speaker capable of delivering maximum quality sound. First of all, we have carefully
selected the membranes so that the signals are heard in a clear and comfortable way,
from weak Morse signals to powerful broadcast emissions. Secondly, we have filled in
the interior with absorbent materials to remove the annoying resonances that might
occur in traditional communications speakers. And finally, we have paid an exquisite
attention to design, transmitting warmth, elegance and personality to your shack.
Miranda, as a Phonema speaker, is a handmade piece created with enthusiasm and
dedication. We hope you enjoy it for a long time.
CHARACTERISTICS
The Miranda model is designed for modern transceivers with a front height of about 94 mm
(3,7 in). Additionally, thanks to its adjustable stand it can be perfectly adapted to
equipment whose height is between 84 mm (3,3 in) and 96 mm (3,78 in).
Designed to:
•Icom IC7300, IC725, IC728, IC730, IC735, IC821, IC910.
•Yaesu FT890, FT707, FT900, FT840, FT757, FT747, FT650 FT847 and FT77.
•Kenwood TS590, TS570, TS2000, TS450, TS440, TS430, TS711, TS811, TS140, TS680.
•TenTec Delta II and Argonaut II
•And other transceivers with similar dimensions.
Miranda presents a frequency response that clearly favors voice intelligibility in SSB.
Frequencies between 200 and 320 Hz have a certain attenuation that mitigates the QRM.
From 320 Hz onwards, sensitivity stays around 83 dB up to 1.2 KHz. Then, it rises to 88 dB
between 2 and 2.8 KHz.
In the bass sounds region the curve has an important emphasis between 120 and 200 Hz.
This feature offers the option to enjoy very solid bass sounds, both to AM listening and to
opening the SSB filter with wider signals.
Between 3.1 KHz and 18 KHz, Miranda offers a fairly flat curve that ensures good sound for
broadcast signals.
