Есть новые:
_http://www.monacor.de/de/JPG/10024/H/H2/H210500Z.jpg
Frequency range 15-30,000 Hz
Transformation ratio 1:1/2:1
Input impedance 600 Ω
Output impedance 600 Ω/300 Ω
Optimum source imped. 50-600 Ω
Optimum load imped. ≥ 5k Ω
Max. input voltage
(1% THD/40 Hz) 5 V
Dimensions 25x19x19.5 mm
Weight 28 g
и вот такие:
_http://www.monacor.de/de/JPG/10024/H/H2/H212140Z.jpg
Frequency range 15-30,000 Hz
Inputs 47 kΩ, unbal.
Outputs 600 Ω, bal.
Transmission ratio 10:1
Dimensions 25x24x21 mm
Weight 28 g