Constant current power (CCP)

Constant current power (CCP)

CCP preamplifiers connect to a CCP supply (for example the G.R.A.S. Type 12AL) via a standard coaxial cable and plug (e.g. BNC) or to an analyzer with a CCP input. In a CCP preamplifier, the power supply maintains a constant current superimposed on the same wire carrying the signal, therefore requiring only a standard coaxial cable and connector.
  1. 26CA 1/2'' CCP Standard Preamp (BNC)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.30 dB
    Special feature: General purpose

    G.R.A.S. 26CA 1/2'' CCP Standard Preamplifier with BNC Connector

    The G.R.A.S. ½-inch Preamplifi er G.R.A.S. 26CA is ageneral purpose preamplifi er optimized for use withprepolarized condenser microphones. It is a small,robust unit and uses a G.R.A.S. CCP power supply(ICP ®), e.g. G.R.A.S. 12AL. It has a very low inherentnoise level, a large dynamic range and a frequencyresponse from below 2 Hz to above 200 kHz.

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  2. 26CK 1/2'' CCP Standard Preamp, Very Short (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.45 dB
    Special feature: For confined spaces

    G.R.A.S. 26CK 1/2” CCP Standard Preamplifier with Microdot Connector, Very Short

    The G.R.A.S. 26CK ½” Preamplifier, Very Short is a very small preamplifier optimized for use with prepolarized condenser microphones. It is a robust unit that uses a constant current power (CCP) supply. The 26CK has a very low inherent noise level, a large dynamic range, and a frequency response from below 2 Hz to above 200 kHz.

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  3. 26CF 1/2'' CCP Preamp, Gain, Filters (BNC)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.25 / +20 dB
    Special feature: 0/20 dB gain, A-weighting and HP filters

    G.R.A.S. 26CF 1/2'' CCP Preamplifier with BNC Connector, Gain and Filters

    The G.R.A.S. ½-inch Preamplifier G.R.A.S. 26CF is a general purpose preamplifier optimisedfor use with prepolarized condenser microphones.It is a small, robust unit and uses a G.R.A.S. CCP 1power supply, e.g. G.R.A.S. 12AL. It has low inherentnoise level, a large dynamic range and a frequencyresponse from 2.5 Hz to 100 kHz.

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  4. 26CB 1/4" CCP Standard Preamp (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: General purpose

    G.R.A.S. 26CB 1/4" CCP Standard Preamplifier with Microdot Connector

    The G.R.A.S. 1/4" preamplifier is a general-purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small, robust unit and uses a G.R.A.S. CCP power supply, e.g. G.R.A.S. 12AL. It has a very low inherent noise level, a large dynamic range, and a frequency response from below 2 Hz to above 200 kHz.

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  5. 26CC 1/4" CCP Standard Preamp (SMB)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: General purpose

    G.R.A.S. 26CC 1/4" CCP Standard Preamplifier with SMB Connector

    The G.R.A.S. 26CC ¼-inch Preamplifier is a general purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small, robust unit and uses a G.R.A.S. CCP power supply, e.g. G.R.A.S. 12AL. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.

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  6. 26CS 1/4" CCP Standard Preamp, Very Short  (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.45 dB
    Special feature: For confined spaces

    G.R.A.S. 26CS 1/4" CCP Standard Preamplifier with Microdot Connector, Very Short

    The G.R.A.S. 26CS ¼″ Preamplifier is a very small preamplifier optimized for use with prepolarized condenser microphones. It is a robust unit and uses a CCP power supply. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.

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  7. 26CG 1/4" CCP Preamp, Low Frequency (Mdot)
    Freq range: 1 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: For low-frequency applications

    G.R.A.S. 26CG 1/4" CCP Preamplifier with Microdot Connector, Low Frequency

    The G.R.A.S. 26CG ¼″ CCP Preamplifier is a small robust unit optimised for acoustic measurements using condenser microphones. It has a very low inherent noise level, a wide dynamic range, and a wide frequency response from below 1 Hz to above 200 kHz.

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