이것만큼 나올라문 회로가 특별한가요?
Output Stage: Single - ended. ultralinear Class-A
Output power: Approx. 15 watt per channel
Outup impedance: 4 - 8 Ohm outputs
Input impedance: 47 kOhm / 50 pF
Negative feedback: 10 dB
Bandwidth: 15 Hz - 40 kHz
Valve complement: 2 x ECC 82 (12AU7 - 58I4A) 2 x KT88
Power consumption: 150 watt
Main Fuses: T 3.15 A from 100V to 120V T 1.6 A from 220V to 250V
Dimensions (cm): 27.5 x 41 x 16.5 11 x 16.2 x 6.5 inches
Net weight: Kg. 18 / 40.5 lbs

라는데, 전 아무리 생각해도 10W도 간신히 나올것 같은데요.
저도 거의같은 회로인데요. UL 접속시에 비법이 잇는건지요?