Lubell Labs AC205B Isolation Transformer Box for LL9484.
Model AC205B (Screw terminal I/O for permanent installation by contractor). Use with 25V constant-voltage (CV) amplifiers below (or Samson Servo 200 or 300 amplifier):
6.1 inch x 3.75 inch x 2.375 inch, 2.25 lbs
Connects to 25V speaker output of following commercial sound amplifiers (allow 37.5 watts consumption per LL916 / AC205B pair):