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SWR-2755B Series Audio Switcher
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SWR-2755B Series Audio Switcher
The Audio Precision SWR-2755B audio switchers expand the input and output capabilities of AP two-channel audio analyzers, including the APx555, APx525 and 2700 Series. They replace the discontinued SWR-2755 and SWR-2122 series.
The SWR-2755B series offers significantly lower crosstalk (18 dB better in an unbalanced 600 Ω load; 10 dB better in a balanced 600 Ω load), a universal power supply, a rear-panel ground lug and full EMC and safety compliance. Use with APx500 Series analyzers requires a USB-APIB adapter.
Key Features
- 12 × 2 configuration; up to 16 units cascaded for 192 channels
- SWR-2755B-M: output switcher, XLR male (balanced)
- SWR-2755B-F: input switcher, XLR female (balanced)
- SWR-2755B-U: unbalanced, floating BNC, input or output (rear DIP switch)
- Crosstalk less than −150 dB at 20 kHz (balanced)
- 1 RU high; bench or rack mount
Key Specifications
| Configuration | 12 × 2 |
| Max voltage rating | 42.4 Vpk, 30 Vrms |
| Max signal power | 5 W or 200 mA |
| Crosstalk (balanced 600 Ω) | −151 dB @ 20 kHz; −140 dB @ 100 kHz |
| Crosstalk (unbalanced 600 Ω) | −140 dB @ 20 kHz; −128 dB @ 100 kHz |
| Series resistance | Typically < 0.3 Ω per side |
| Shunt capacitance | Typically < 100 pF |
Datasheet available on request.
