G.R.A.S. Sound & Vibration
1/2” Preamplifiers
1/2” Preamplifier Type 26AK
| The 26AK is a 1/2” preamplifier with integrated 7-pin Lemo connector.
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| Frequency range: | 2 Hz- 200 kHz (±0.2 dB) |
| Input impedance: | 20 GΩ, 0.2 pF |
| Output impedance: | 55 Ω (typical) |
| Power Supply: | 120 V 2.5 mA down to 28 V 0.7 mA |
| Noise (with 1/2” microphone): | A-weighted: <2.5 µVrms (typical: 1.8 µVrms) Linear (20 Hz-20 kHz): (20Hz-20kHz): <6 µVrms |
| Gain: | -0.15 dB (typical) |
| Temperature: | Operation: -40°C - +60°C Storage: -40°C - +70°C |
| Diameter: | 12.7 mm (1/2”) |
| Length: | 77.5 mm |
| Weight: | 33 g |
| Cables Available: | AA0008 3 m Cable AA0009 10 m Cable AA0012 30 m Cable AA0014 100 m Cable |
1/2” ICP® Preamplifier Type 26CA
| The 26CA is a 1/2” ICP preamplifier for connection to standard ICP® input channels . The 26AC has a standard BNC output connector and is intended for used with prepolarized microphones. The 26CA is delivered without a cable. |
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| Frequency range: | 2 Hz- 200 kHz (±0.2 dB) |
| Input impedance: | 20 GΩ, 0.2 pF |
| Output impedance: | 55 Ω (typical) |
| Power Supply: | 120 V 2.5 mA down to 28 V 0.7 mA |
| Noise (with 1/2” microphone): | A-weighted: <2.5 µVrms (typical: 1.8 µVrms) |
| Linear (20 Hz-20 kHz): | (20Hz-20kHz): <6 µVrms |
| Gain: | -0.15 dB (typical) |
| Temperature: | Operation: -40°C - +60°C Storage: -40°C - +70°C |
| Diameter: | |
| Length: | |
| Weight: | |
| Cables Available: | AA0008 3 m Cable AA0009 10 m Cable AA0012 30 m Cable AA0014 100 m Cable |
