PA Series Description
Stewart Audio's Half Rack PA Series Power Amplifiers are designed specifically for high quality Commercial, Industrial and Professional Audio sound installations.
The PA Series was specifically designed to meet the rigorous requirements of Sonic Accuracy, High Efficiency, Low Power consumption and extended duty cycles in a very compact Half Rack Package.
Datasheets: PA-50B | PA-100B
Download Owner's Manual
Power Specifications
PA-50B
50W x 2 @ 4 Ohms
25W x 2 @ 8 Ohms
100W x 1 @ 8 Ohms Bridged
PA-100B
90W x 2 @ 4 Ohms
50W x 2 @ 8 Ohms
180W x 1 @ 8 Ohms Bridged
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PA Series Features
- Compact Half Rack Package
- Two Channel Amplifier, optimized to drive
4 Ohm and 8 Ohm loads.
- Convection Cooled (No Fans)
- Clean Full-Range Dynamic Power
- World Class Reliability
- Bridgeable
- Ultra Efficient Switch Mode Power Supply
- 2 Years Parts and Labor Warranty
Applications
- Audio Video Production
- Pre/Post Productions
- Project Studios
- Broadcast Applications
- Instrument Rigs
- Sound Reinforcement
- Fixed Installations
- Amplifiers located in Listening Environment
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Product Specifications
| |
PA50B |
PA100B |
| 8 Ohm Stereo Power |
25 Watts/Ch |
50 Watts/Ch |
| 4Ohm Stereo Power |
50 Watts/Ch |
90 Watts/Ch |
| Bridged Mono |
100W@8Ohm 100W@4Ohm |
180W@8Ohm 180W@4Ohm |
| Freq. Response(+0, -.5dB,1W) |
20 Hz-20kHz |
20 Hz-20kHz |
| Bandwidth +/- |
3dB5Hz-100kHz |
5Hz-100kHz |
| Signal to Noise |
>100dB |
>100dB |
| THD+N |
< .1% |
< .1% |
| Input Sensitivity |
1V (0 dBV) |
1V (0 dBV) |
| Input Impedance (Bal/Unbal.) |
20k Ohms/10k Ohms |
20k Ohms/10k Ohms |
| Slew Rate |
>30V / microsecond |
>30V / microsecond |
| Damping Factor |
>200 / 8 Ohm |
>200 / 8 Ohm |
| Class |
AB |
AB |
| Input Connectors |
1/4" TRS |
1/4" TRS |
| Output Connectors |
Terminal Strip |
Terminal Strip |
| Power Supply |
High Speed Switching |
High Speed Switching |
| Cooling |
Convection-Cooling (No Fans) |
Convection-Cooling (No Fans) |
| Controls |
Pwr on/off, Channel Gain, stereo/Bridge |
Pwr on/off, Channel Gain, stereo/Bridge |
| LED Indicators |
Power & Clip |
Power & Clip |
| Construction |
Steel & Aluminum Chassis |
Steel & Aluminum Chassis |
| Operating Voltage |
120 VAC |
120 VAC |
| Dimensions(h, w, d) |
1.7"H x 8.5"W x 6.2" D |
1.7"H x 8.5"W x 10.2" D |
| Weight |
3.5 lbs (1.6kg) |
5.5 lbs (2.5kg) |
| Warranty |
2 years Parts & Labor |
2 years Parts & Labor |
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