The Stewart Audio PA-50B was specifically designed to meet the rigorous requirements of sonic accuracy, high efficiency, low power consumption and extended duty cycles all in a very compact half rack package. Low cost, lightweight and convection cooling make this amplifier perfect for high quality commercial, industrial and pro audio sound installations. Our flexible design allows bridging to mono for increased power and will also accept balanced or unbalanced signals by way of 1/4" TRS input connectors. With thousands in operation across a broad range of applications, this hardworking Class AB amplifier has passed the test of time again and again.
| 8Ω Stereo Power | 25W |
|---|---|
| 4Ω Stereo Power | 50W |
| 8Ω Bridged Power | 100W |
| Frequency Response (+0, -0.5dB, 1W) | 20Hz - 20kHz |
| Power Bandwidth (+0, -3 dB) | 5Hz - 100kHz |
| Signal to Noise | >100dB |
| THD+N | |
| Damping Factor | >200 |
| Slew Rate | 30V/microsecond |
| Input Sensitivity | 1V (0 dBV) |
| Standard Voltage Gain | 40x (32dB) |
| Input Impedance (Balanced/Unbalanced) | 20k Ω/10k Ω |
| Idle Current Draw, 1/8 Power Draw | 0.13/0.56A |
| Class | AB |
| Input Connectors | 1/4" TRS |
| Output Connectors | Terminal Strip |
| Power Supply | High Speed Switching |
| Cooling | Convection-Cooled (no fans) |
| Controls | Power on/off, Channel Gain |
| LED Indicators | Power & Clip |
| Construction | Steel & Aluminum Chassis |
| Dimensions (H x W x D) | 1.75” (44.5 mm) x 8.2” (208.3 mm) x 6.2” (157.5 mm) |
| Weight | 3.5 lbs (1.59 kg) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
