TransAudio Fever Grade 250W * 2 Pure Rear Grade T7Pro

Line characteristics

T7Pro adopts the flagship amplifier circuit of Berlin Voice 909

Ultra fast power amplification circuit with fully symmetrical X-Amp design

DC interconnection, pure DC line, audio path passes through no capacitors

High damping coefficient, can control any horn freely

Adopting a dual mono design, the left and right channels are powered separately, with extremely high separation

Production materials

5 pairs of precision testing pairs per channel, paired with triple tube C2922/A1216 105A high output current capability

All small signal lines and high current lines inside the machine are made of Taiwanese made PTFE oxygen free copper wire

1200W high-end Nippon Steel transformer

12 10000uF fever grade large electrolysis units

Equipped with soft startup and comprehensive horn protection circuit

High quality RCA and wiring terminals

Specifications

Input sensitivity: 1.27Vrms

Input impedance: 33K ohms

Damping coefficient: 2000

Output power: 250W/8 ohms, 500W/4 ohms

RMS power, long-term stable output at full power

Static power consumption: 120W

Supply voltage: AC110V or AC220V

Chassis color: all silver or all black

Whole machine weight: 22kg

Weight with packaging: 25kg

Overall dimensions: 450 * 380 * 160mm

Packaging size: 550 * 580 * 230mm

AP assisted design and parameter testing

Test data with 8 Euro 800W load

Output effective value: 41Vrms

Channel gain: 28.6dB

27.0 times

Residual noise: 25.77uVrms

Signal to noise ratio: 122.6dB

Dynamic range: 122.9dB

THD distortion: 0.000389%

THD+N distortion: 0.001166%

Intermodulation distortion: 0.005%

Input sensitivity: 1.28Vrms

Frequency response bandwidth: ± 0.064dB

Input impedance: 33K ohms