Jeff Rowland 625S S2 Power Amp Boxed
Mint condition.
The 625 incorporates many of the same technical features of the 725 amplifiers. Similar to the 725, the 625 signal circuitry is built upon a Rogers ceramic circuit board laminate material for lower dielectric absorption and energy storage.
Precision LED based current sources have been implemented throughout the amplifier circuitry, along with 0.1% thin film SMD resistors for more stable operating points and lower noise. Custom designed Lundahl input transformers are implemented
Output Power 300 watts @ 8 ohms / 570 watts @ 4 ohms
Frequency Response 10 Hz – 150 kHz, -3 dB
S/N Ratio 95 dB, ref. 1.0 watt @ 8 ohm load
Output Noise < 100 µv, A-wtd
Crosstalk > 91 dB @ 1 kHz, 74 dB @ 20 kHz
Input Impedance 40k ohms
THD + Noise < 0.001% @ 1 kHz, 8 ohms
Damping Factor > 200, 20 Hz – 20 kHz
Overall Gain / Bal. or Unbal. 26 dB
Common Mode Rejection Ratio > 90 dB, 20 Hz – 20 kHz
Absolute Phase Non-inverting Pin 2 Positive
Inputs 1 pair balanced (XLR)
Outputs 2 pair parallel binding posts per channel
Power Consumption Idle 100 watts
Power Consumption Standby < 0.5 watt
Amplifier Weight 54 lbs. / 24.5 kg
Amplifier Shipping Weight 64 lbs. / 29 kg
Amplifier Dimensions (h/w/d) 5.75” x 15.5” x 16.25” / 146mm x 394 mm x 413mm
