Top Technology method order
Products' list and Features
JPY 60,000/pair
The main specification
  • Maximum input voltage;　35V
  • Impedance;　8ohms
  • Reproduction frequency band region;
    18kHz-150kHz or more
  • The maximum output sound efficiency;
    100dB/W/m     Five stage switch
  • Mass; About 300 grams
  • Size;125mm(width)90mm(height)
    100mm(depth terminals are contained)
  • Drive system;
    polymer piezo-electric Heil type
1. Sound wave radiation board
3. Black speaker terminal(minus).
4. Red speaker terminal(plus).
5. rotary switch1

The explanation of the
rotary switch
Five settings for theSPL efficiency of the speaker
OFF ; 50dB
1 ;　　 70dB
2 ; 　　80dB
3 ;　　 90dB
4 ; 　100dB
Note1;
The protection circuit operates over 100V (However, a test signal by 20kHz or more shoud be under 10V). It returns to the origin when you turns off power)
Note2;
We have determined the reproduction ability of 150kHz or more. That measurement limit of the microphone
used for the measurement at the university research laboratories.

Note3; Connection method
1. Please connect the speaker terminals of BATPRO2 in parallel with the speaker
　　terminals of the main speaker.　Or you connect it directly with the speaker output
　　terminals at the amplifier.
　　Unusually, there seems to be a speaker that is a reverse-aspect, too.
　　In that case, please connect the +terminal and -terminal in reverse.
2. Please connect it with high pitch(tweeter) side at the ｂi-wiring connection.