Samson 120A - Manuals

7 Guided Tour - Rear Panel 1: AC Input - Connect the supplied standard 3-pin “IEC” plug here. 2: Fuse Holder - Insert a 2.5 amp, SLO-BLO 125 volt fuse here for 115 volt operation, or a 1.5 amp, SLO-BLO 250 volt fuse for 230 volt operation. WARNING: Fuses should only be replaced with the power cord d...

88 Setting Up and Using the Servo 120a Power Amplifier Bridge switch Output connectors Input connectors Protection LED Headphone jack and Speaker on/off switch Channel Input control Ten-segment LED meters Setting up your Servo 120a is a simple procedure which takes only a few minutes:1. Remove all p...

9 The Servo 120a Protection Circuitry As noted in the “Guided Tour” section of this manual, the Servo 120a's front panel Protection LED indicates the activity of the relay speaker connection circuitry. When the Protection LED is lit, this circuitry is inactive, and all connected speakers are muted (...

10 Bridge Mode The Servo 120a provides a rear-panel switch that allows it to be used in a Bridge mode. When this switch is placed in the “RIGHT” (Stereo) position, the Servo 120a functions as a true stereo amplifier, where both of the two independent amplifier channels (left and right) can receive d...

Appendix A: Linearity vs. Frequency Sweep 11 Linearity (0 dB Ref ) vs. frequency sweep 10 Hz - 50 kHz 5.0000 4.0000 3.00002.00001.00000.0-1.000-2.000 -3.000 -4.000-5.000 10 100 1k 10k 50k Ap AUDIO PRECISION Servo 120a LEVEL (dBr) vs FREQ (Hz) 0dB ref

13 Specifications Rated Output Power, per channel (@ 1 kHz) Stereo mode 4 ohm, .<0.05% THD+N 60 W 4 ohm, 1% THD+N 80 W 8 ohm, <0.05% THD+N 50 W 8 ohm, 1% THD+N 55 W Bridge mode 8 ohm, .<0.05% THD+N 120 W 8 ohm, 1% THD+N 150 W Typical Distortion, per channel THD+N (80 kHz LPF @ 1 kHz, rated ...